Software Engineering Radio - The Podcast for Professional Software Developers

Jacob Visovatti and Conner Goodrum of Deepgram speak with host Kanchan Shringi about testing ML models for enterprise use and why it's critical for product reliability and quality. They discuss the challenges of testing machine learning models in enterprise environments, especially in foundational AI contexts. The conversation particularly highlights the differences in testing needs between companies that build ML models from scratch and those that rely on existing infrastructure. Jacob and Conner describe how testing is more complex in ML systems due to unstructured inputs, varied data distribution, and real-time use cases, in contrast to traditional software testing frameworks such as the testing pyramid. To address the difficulty of ensuring LLM quality, they advocate for iterative feedback loops, robust observability, and production-like testing environments. Both guests underscore that testing and quality assurance are interdisciplinary efforts that involve data scientists, ML engineers, software engineers, and product managers. Finally, this episode touches on the importance of synthetic data generation, fuzz testing, automated retraining pipelines, and responsible model deployment—especially when handling sensitive or regulated enterprise data. Brought to you by IEEE Computer Society and IEEE Software magazine.

Samuel Colvin, the CEO and founder of Pydantic, speaks with host Gregory M. Kapfhammer about the ecosystem of Pydantic's Python frameworks, including Pydantic, Pydantic AI, and Pydantic Logfire. Along with discussing the design, implementation, and use of these frameworks, they dive into the refactoring of Pydantic and the follow-on performance improvements. They also explore ways in which Python programmers can use these three frameworks to build, test, evaluate, and monitor their own applications that interact with both local and cloud-based large language models. Brought to you by IEEE Computer Society and IEEE Software magazine.

Brian Demers, Developer Advocate at Gradle, speaks with host Giovanni Asproni about the importance of having observability in the toolchain. Such information about build times, compiler warnings, test executions, and any other system used to build the production code can help to reduce defects, increase productivity, and improve the developer experience. During the conversation they touch upon what is possible with today's tools; the impact on productivity and developer experience; and the impact, both in terms of risks and opportunities, introduced by the use of artificial intelligence. Brought to you by IEEE Computer Society and IEEE Software magazine.

Vilhelm von Ehrenheim, co-founder and chief AI officer of QA.tech, speaks with SE Radio's Brijesh Ammanath about autonomous testing. The discussion starts by covering the fundamentals, and how testing has evolved from manual to automated to now autonomous. Vilhelm then deep dives into the details of autonomous testing and the role of agents in autonomous testing. They consider the challenges in adopting autonomous testing, and Wilhelm describes the experiences of some clients who have made the transition. Toward the end of the show, Vilhelm describes the impact of autonomous testing on the traditional QA career and what test professionals can do to upskill. This episode is sponsored by Fly.io.

In this episode of Software Engineering Radio, Abhinav Kimothi sits down with host Priyanka Raghavan to explore retrieval-augmented generation (RAG), drawing insights from Abhinav's book, A Simple Guide to Retrieval-Augmented Generation. The conversation begins with an introduction to key concepts, including large language models (LLMs), context windows, RAG, hallucinations, and real-world use cases. They then delve into the essential components and design considerations for building a RAG-enabled system, covering topics such as retrievers, prompt augmentation, indexing pipelines, retrieval strategies, and the generation process. The discussion also touches on critical aspects like data chunking and the distinctions between open-source and pre-trained models. The episode concludes with a forward-looking perspective on the future of RAG and its evolving role in the industry. Brought to you by IEEE Computer Society and IEEE Software magazine.

Luca Palmieri, author of Zero to Production in Rust and Principal Engineering Consultant at MainMatter, speaks with SE Radio host Gavin Henry about Rust in production. They discuss what production Rust means, how to get Rust code into production, specific Rust issues to think about when getting an application into production, what Rust profiles are, expected performance, telemetry options, error handling and what parts of Rust to use and avoid.  Palmieri discusses docker containers, tracing, robust Rust error handling, how performant Rust is in the real world, p50, p99, docker build techniques, project layouts, crates, speeding up Rust build times, unwrap(), panics, budgeting resources, inner development loops, the Facade Pattern, structured logging, and how to always use clippy. Brought to you by IEEE Computer Society and IEEE Software magazine.

In this episode, SE Radio host Sriram Panyam explores HTMX with its creator, Carson Gross, who is also creator of Hyperscript, the mind behind the Grug Brained Developer, a professor of software engineering at Montana State University, and co-author of Hypermedia Systems. HTMX is a modern JavaScript library that allows developers to access AJAX, WebSockets, CSS Transitions, and Server-Sent Events directly in HTML using attributes. It represents a return to hypermedia-driven application architecture while supporting modern user experiences. The episode starts with a look at the current complexity in web development and how HTMX offers an alternative approach. Carson explains the core philosophy of "HTML as the interface" and how hypermedia principles influenced HTMX's design. From there, they dive into HTMX's technical concepts, including its attribute system, server-side integration, event handling, and state management approach. Carson shares some real-world implementation strategies, including migration paths from JavaScript frameworks, architectural patterns, and performance considerations -- as well as a few scenarios in which HTMX might not be the best fit. Finally, they look at the growing HTMX ecosystem, community contributions, and future development roadmap. Throughout the episode, Carson provides concrete examples and case studies of HTMX in production environments. Brought to you by IEEE Computer Society and IEEE Software magazine.

Matthias Endler, Rust developer, open-source maintainer, and consultant through his company Corrode, speaks with SE Radio host Gavin Henry about prototyping in Rust. They discuss prototyping and why Rust is excellent for prototyping, and Matthias recommends a workflow for it, including what parts of Rust to use, and what parts to avoid at this stage. He describes the key components that Rust provides to help us validate ideas via prototypes, as well as tips and tricks to reach for.  In addition, the conversation explores type inference, unwrap(), expect(), anyhow crate, bacon crate, cargo-script, Rust macros to use, generics, lifetimes, best practices, project layout styles, and how to design through types. Brought to you by IEEE Computer Society and IEEE Software magazine.

Will McGugan, the CEO and founder of Textualize, speaks with host Gregory M. Kapfhammer about how to use packages such as Rich and Textual to build text-based user interfaces (TUIs) and command-line interfaces (CLIs) in Python. Along with discussing the design idioms that enable developers to create TUIs in Python, they consider practical strategies for efficiently rendering the components of a TUI. They also explore the subtle idiosyncrasies of implementing performant TUI frameworks like Textual and Rich and introduce the steps that developers would take to create their own CLI or TUI. This episode is sponsored by Fly.io.

Steve Summers speaks with SE Radio host Sam Taggart about securing test and measurement equipment. They start by differentiating between IT and OT (Operational Technology) and then discuss the threat model and how security has evolved in the OT space, including a look some of the key drivers. They then examine security challenges associated with a specific device called a CompactRIO, which combines a Linux real-time CPU with a field programmable gate array (FPGA) and some analog hardware for capturing signals and interacting with real-world devices. Brought to you by IEEE Computer Society and IEEE Software magazine.

Ashley Peacock, the author of Serverless Apps on Cloudflare, speaks with host Jeremy Jung about content delivery networks (CDNs). Along the way, they examine dependency injection with bindings, local development, serverless, cold starts, the V8 runtime, AWS Lambda vs Cloudflare workers, WebAssembly limitations, and core services such as R2, D1, KV, and Pages. Ashley suggests why most users use an external database and discusses eventually consistent data stores, S3-to-R2 migration strategies, queues and workflows, inter-service communication, durable objects, and describes some example projects. Brought to you by IEEE Computer Society and IEEE Software magazine.

Eran Yahav, Professor of Computer Science at Technion, Israel, and CTO of Tabnine, speaks with host Gregory M. Kapfhammer about the Tabnine AI coding assistant. They discuss how the design and implementation allows software engineers to use code completion and perform tasks such as automated code review while still maintaining developer privacy. Eran and Gregory also explore how research in the field of natural language processing (NLP) and large language models (LLMs) has informed the features in Tabnine. Brought to you by IEEE Computer Society and IEEE Software magazine.

Malcolm Matalka, founder of Terrateam, joins host Giovanni Asproni to talk about the reasoning behind choosing a not-so-widespread language (OCaml) and (almost) totally avoiding frameworks for the development of Terrateam. While discussing the reasons for choosing this specific programming language and the advantages and disadvantages of using external frameworks, they also consider a range of related topics, including static vs. dynamic typing, the use of monorepos, and the advantages of choosing a single language that can be used both for web front ends and server back ends. The episode ends with lessons learned that can be applied to other contexts and projects. Brought to you by IEEE Computer Society and IEEE Software magazine.

Emre Baran, CEO and co-founder of Cerbos, and Alex Olivier, CPO and co-founder, join SE Radio host Priyanka Raghavan to explore “stateless decoupled authorization frameworks. The discussion begins with an introduction to key terms, including authorization, authorization models, and decoupled frameworks. They dive into the challenges of building decoupled authorization, as well as the benefits of this approach and the operational hurdles. The conversation shifts to Cerbos, an open-source policy-based access control framework, comparing it with OPA (Open Policy Agent). They also delve into Cerbos's technical workings, including specification definitions, GitOps integration, examples of usage, and deployment strategies. The episode concludes with insights into potential trends in the authorization space. This episode is sponsored by Penn Carey Law school

Tyler Flint, CEO of qpoint.io, joins host Robert Blumen for a conversation about managing external vendor dependencies, including several best practices for adoption. They start with a look at internal versus external services, including details such as the footprint of external services within a micro-services application, and difficulties organizations have tracking their service consumption, quantifying service consumption, and auditing external services. Tyler also discusses the security implications of external services, including authentication and authorization. They examine metrics and monitoring, with recommendations on the key metrics to collect, as well as acceptable error rates for external services. From there they consider what can go wrong, how to respond to external service outages, and challenges related to testing external services. The episode wraps up with a discussion of qPoint's migration from a proxy-based solution to one based on eBPF kernel probes. Brought to you by IEEE Computer Society and IEEE Software magazine.

Software architect and author Vlad Khononov joins host Jeff Doolittle for a discussion on balancing coupling in software design. They start by examining coupling and its relationship to complexity and modularity. Vlad explains the historical models for assessing coupling and introduces his updated approach, integration strength, which aims to simplify earlier frameworks and adapt them for modern practices. The episode explores three dimensions of coupling: integration strength (knowledge sharing), distance (proximity of components), and volatility (likelihood of change). Vlad illustrates how design decisions can lead systems toward complexity or modularity, and he emphasizes the importance of managing coupling to minimize cognitive load and cascading changes. The conversation wraps up with insights on applying these principles to real-world software projects and a reminder of coupling's critical role in software architecture. Brought to you by IEEE Computer Society and IEEE Software magazine.

Sunil Mallya, co-founder and CTO of Flip AI, discusses small language models with host Brijesh Ammanath. They begin by considering the technical distinctions between SLMs and large language models.  LLMs excel in generating complex outputs across various natural language processing tasks, leveraging extensive training datasets on with massive GPU clusters. However, this capability comes with high computational costs and concerns about efficiency, particularly in applications that are specific to a given enterprise. To address this, many enterprises are turning to SLMs, fine-tuned on domain-specific datasets. The lower computational requirements and memory usage make SLMs suitable for real-time applications. By focusing on specific domains, SLMs can achieve greater accuracy and relevance aligned with specialized terminologies. The selection of SLMs depends on specific application requirements. Additional influencing factors include the availability of training data, implementation complexity, and adaptability to changing information, allowing organizations to align their choices with operational needs and constraints. This episode is sponsored by Codegate.

Pete Warden, CEO of Useful Sensors and a founding member of the TensorFlow team at Google, discusses TinyML, the technology enabling machine learning on low-power, small-footprint devices. This innovation opens up applications such as voice-controlled devices, offline translation tools, and smarter embedded systems, which are crucial for privacy and efficiency. SE Radio host Kanchan Shringi speaks with Warden about challenges like model compression, deployment constraints, and privacy concerns. They also explore applications in agriculture, healthcare, and consumer electronics, and close with some practical advice from Pete for newcomers to TinyML development. Brought to you by IEEE Computer Society and IEEE Software magazine.

Brenden Matthews, a seasoned software engineer, entrepreneur, and author of the Idiomatic Rust and Code Like a Pro in Rust books (both from Manning), speaks with SE Radio host Gavin Henry about Idiomatic Rust. They start with a look at what "idiomatic" means, and then discuss Generics, Traits, common design patterns you'll see in well written Rust code, and anti-patterns to avoid. Matthews suggests some tools that can help you immediately write idiomatic Rust, as well as what building blocks can also help. This episode examines what Generics are and how they compare to other languages, as well as what Traits are, how macros help, what a Fluent Interface is, and why unwrap() is bad. They also discuss what code smells to look out for, Clone, Copy, and a really nice place to go read real-world Idiomatic Rust code. Brought to you by IEEE Computer Society and IEEE Software magazine.

Tanya Janca, author of Alice and Bob Learn Secure Coding, discusses secure coding and secure software development life cycle with SE Radio host Brijesh Ammanath. This session explores how integrating security into every phase of the SDLC helps prevent vulnerabilities from slipping into production. Tanya strongly recommends defining security requirements early, and discusses the importance of threat modeling during design, secure coding practices, testing strategies such as static, dynamic, and interactive application security testing (SAST, DAST and IAST), and the need for continuous monitoring and improvement after deployment. This episode is sponsored by Codegate.ai

Hong Minhee, an open source developer and creator of the Fedify ActivityPub library, discusses the ActivityPub protocol and the fediverse with SE Radio's Jeremy Jung. They explore ActivityPub use cases, including microblogging applications such as Mastodon and Misskey, as well as activities built into the specification such as Like, Follow, and Accept. They also discuss extending the specification to include properties like Discoverable and Suspended, how different implementations communicate when they don't implement the same extensions, ND the use of JSON-LD and why it is challenging to implement. Finally, they consider the HTTP-based inbox communication model, difficulties with scaling when using a push rather than a pull model, account migration, and resources for implementing the ActivityPub specification. Brought to you by IEEE Computer Society and IEEE Software magazine.

Ivett Ördög speaks with host Sam Taggart about rewrite versus refactor -- a choice that many projects face as they grow. It's a topic that inspires a lot of dogmatic feelings. They discuss how companies and projects end up at this crossroads and consider some strategies to try to avoid it. Ivett challenges the myth that you should never rewrite but points to two key factors that need to be present for a successful large-scale rewrite or refactor. They end by talking about how to get management on board for such large-scale rewrite or refactor projects. Brought to you by IEEE Computer Society and IEEE Software magazine.

In this episode, Charles Humble speaks withhost Brijesh Ammanath about skills that can provide developers a grounding in systems thinking. Charles is a 30-year veteran of the IT industry, including as a former software engineer, architect, and CTO, as well as former editor in chief of InfoQ and chief editor for Container Solutions. He has published “Professional Skills for Software Engineers” as a series of 14 O'Reilly shortcuts covering communication, critical thinking, documentation, and networking. Underlying his work is the idea that as complexity increases in IT systems, the roles of architects and leaders move from linear thinking to something that might be more broadly defined as systems thinking -- looking at problems and systems as a whole rather than just the individual parts. This requires a skill set that isn't generally taught or widely valued as an industry -- in part, because it's hard to test in whiteboard interviews. It requires a mixture of communication skills; interpersonal skills; critical thinking; the ability to synthesize large amounts of information.  Brought to you by IEEE Computer Society and IEEE Software magazine.  

Chris Patterson, founder and principal architect of MassTransit, joins host Jeff Doolittle to discuss MassTransit, a message bus framework for building distributed systems. The conversation begins with an exploration of message buses, their role in asynchronous and durable application design, and how frameworks like MassTransit simplify event-driven programming in .NET. Chris explains concepts like pub/sub, durable messaging, and the benefits of decoupled architectures for scaling and reliability.  The discussion also delves into advanced topics such as sagas, stateful consumers for orchestrating complex processes, and how MassTransit supports patterns like outbox and routing slips for ensuring transactional consistency. Chris highlights the importance of observability in distributed systems, sharing how MassTransit integrates with tools like OpenTelemetry to provide comprehensive monitoring. The episode includes advice on adopting event-driven approaches, overcoming leadership hesitancy, and ensuring secure and efficient implementations. Chris emphasizes the balance between leveraging cutting-edge tools and addressing real-world challenges in software architecture. Brought to you by IEEE Computer Society and IEEE Software magazine.

Asanka Abeysinghe, CTO at WSO2, joins host Giovanni Asproni to discuss cell-based architecture -- a style that's intended to combine application, deployment, and team architecture to help organizations respond quickly to changes in the business environment, customer requirements, or enterprise strategy. Cell-based architecture is aimed at creating scalable, modular, composable systems with effective governance mechanisms. The conversation starts by introducing the context and some vocabulary before exploring details about the main elements of the architecture and how they fit together. Finally, Asanka offers some advice on how to implement a cell-based architecture in practice. Brought to you by IEEE Computer Society and IEEE Software magazine. Related Episodes SE Radio 396: Barry O'Reilly on Antifragile Architecture SE Radio 331: Kevin Goldsmith on Architecture and Organizational Design SE Radio 263: Camille Fournier on Real-World Distributed Systems SE Radio 236: Rebecca Parsons on Evolutionary Architecture SE Radio 213: James Lewis on Microservices SE Radio 210: Stefan Tilkov on Architecture and Micro Services SE Radio 203: Leslie Lamport on Distributed Systems

Christian Mesh, tech lead of the OpenTofu project, speaks with host Robert Blumen about OpenTofu. They start with the history of terraform, terraform providers, license changes to open source projects, the origin of OpenTofu as a fork of terraform, and the structure of the OpenTofu organization. They further explore compatibility issues for HCL, providers, and modules, performance issues, and adoption, as well as significant features in the OpenTofu-included dynamic-provider iteration, and the roadmap for the project going forward. Brought to you by IEEE Computer Society and IEEE Software magazine.

Paul Frazee, CTO of Bluesky, speaks with SE Radio's Jeremy Jung about the Authenticated Transfer Protocol (ATProto) used by the Bluesky decentralized social network. They discuss why ATProto was created, as well as how it differs from the ActivityPub open standard, the scaling limitations of peer-to-peer solutions, cryptographic decentralized identifiers, and creating a protocol based on experience with distributed systems. They also examine the role of personal data servers, relays, and app views, the benefits of using domain names, allowing users to create algorithmic feeds and moderation tools, and the challenges of content moderation. Brought to you by IEEE Computer Society and IEEE Software magazine.

Robert Seacord, the Standardization Lead at Woven by Toyota, the convenor of the C standards committee, and author of The CERT® C Coding Standard, Effective C, and Secure Coding in C and C++, speaks with SE Radio host Gavin Henry about What's New in the C Programming Language. They start with a review of the history of C and why it has a standard, and then they discuss what C23 brings and how programmers can take advantage of it. They consider the sectors in which C is most used and whether you should use C to start a brand new project in 2025. Seacord discusses 8 new things that C23 brings, use case examples, must haves, floating point numbers, how automotive systems use C, why C is used there, Rust vs C, compile time checks vs static analysis, all the various safety standards they can use, why you should use the right tool for the job and never trust user input no matter the language.  Brought to you by IEEE Computer Society and IEEE Software magazine.

Lukas Gentele, CEO of Loft Labs, joins host Robert Blumen for a discussion of kubernetes vclusters (virtual clusters). A vcluster is a kubernetes cluster that runs kubernetes application on a host kubernetes cluster. The conversation covers: vcluster basics; sharing models; what is owned by the vcluster and what is shared with the host; attached nodes versus shared nodes; the primary use case: multi-tenancy vcluster per tenant; alternatives - namespace per tenant, full cluster per tenant; trade-offs - isolation; less resource use; spin up time; scalability; how many clusters and how many vclusters should an org have? Deployment models for vclusters - helm chart with standard resources; vcluster operator; persistent storage models for vclusters; vcluster snapshotting, recovery, and migration. how many vclusters can run on a cluster? ingress, TLS and DNS. Brought to you by IEEE Computer Society and IEEE Software magazine.

Matthew Adams, Head of Security Enablement at Citi, joins SE Radio host Priyanka Raghavan to explore the use of large language models in threat modeling, with a special focus on Matthew's work, Stride GPT. The episode kicks off with an overview of threat modeling, its applications, and the stages of the development life cycle where it fits in. They then discuss the STRIDE methodology and strideGPT, highlighting practical examples, the technology stack behind the application, and the tool's inputs and outputs. The show concludes with tips and tricks for optimizing tool outputs and advice on other open source projects that utilize generative AI to bolster cybersecurity defenses. Brought to you by IEEE Computer Society and IEEE Software magazine.

Praveen Gujar, Director of Product at LinkedIn, joins SE Radio host Kanchan Shringi for a discussion on how generative AI (GenAI) is transforming digital advertising technology platforms. The conversation starts with a look at how GenAI facilitates scalable ad content creation, using self-attention mechanisms for customized ad generation. They explore AI's role in simplifying campaign management, automating tasks such as audience targeting and performance measurement. Praveen emphasizes that ad tech platforms use AI models tailored to different needs leveraging both first-party and third-party data sources, with privacy maintained through methods such as CAPI (conversion API). They also consider the differences between retrieval-augmented generation (RAG) and fine-tuning in AI models: Whereas RAG uses brand-specific data at runtime for precise ad content, fine-tuning focuses on broader model optimization. The segment highlights the importance of vector embeddings and vector search in storing and retrieving contextual content. Lastly, Praveen discusses the integration of AI teams within product development to improve collaboration and AI proficiency across organizations. Brought to you by IEEE Computer Society and IEEE Software magazine.

Matthew Skelton joins host Giovanni Asproni to talk about team topologies—an approach to organizing teams for fast flow of value. The episode starts with a description of the underlying principles before exploring the approach in more detail. From there, they discuss when to consider implementing the approach; keys to a successful implementation; and some common mistakes to avoid. Brought to you by IEEE Computer Society and IEEE Software magazine.

Vinay Tripathi, a senior network engineer in Google Backbone Engineering and an 18-year network engineering veteran, discusses BGP optimization, a technique that's critical in achieving top goals in distributed applications. Host Philip Winston speaks with Tripathi about BGP, autonomous systems, peer grouping, router hardware and software, software-defined networks, and shared network optimization and debugging stories. Brought to you by IEEE Computer Society and IEEE Software magazine.

Tim McNamara, a well-known Rust educator, author of Rust in Action (Manning), and a recipient of a Rust Foundation Fellowship in 2023, speaks with SE Radio host Gavin Henry about error handling in Rust. They discuss the errors that Rust prevents, what an error is in Rust, what Tim classes as the "four levels of error handling," and the lifecycle of your journey reaching for them. McNamara explains why Rust handles errors as it does, how it differs from other languages, and what the developer experience is like in dealing with Rust errors. He advocates best practices for error handling, what Result is, the power of Rust Enums, what the question mark operator is, when to unwrap, what Box really means, how to deal with errors across the FFI boundary, and the various Rust error-handling crates that you can use to give you more control. Brought to you by IEEE Computer Society and IEEE Software magazine.

Ganesh Datta, co-founder of Cortex.io, joins host Robert Blumen for a conversation about production readiness. The conversation covers the history of production readiness; its relationship to microservice architecture; the Google SRE model's impact on production readiness; production readiness checklists; the process; and production readiness transparency.

Simon Wijckmans, founder of c/side -- a company that focuses on monitoring, securing, and optimizing third-party JavaScript -- joins SE Radio host Kanchan Shringi for a conversation about the security risks posed by third-party browser scripts. Through real-world examples and insights drawn from his work in web security, Simon highlights the dangers, including malicious attacks such as the recent Polyfill.io incident. He emphasizes the need for vigilant monitoring, as these third-party scripts remain essential for website functionalities like analytics, chatbots, and ads, despite their potential vulnerabilities. Simon explores the use of self-hosting solutions and content security policies (CSPs) to minimize risks, but he stresses that these measures alone are insufficient to fully safeguard websites.  As the discussion continues, they delve into the importance of layering security approaches. Simon advocates for combining techniques like CSPs, real-time monitoring, and AI-driven analysis, which his company c/side employs to detect and block malicious scripts. He also touches on the complexities of securing single-page applications (SPAs), which allow scripts to persist across pages without full reloads, increasing the attack surface for third-party vulnerabilities. Brought to you by IEEE Computer Society and IEEE Software magazine.

Catherine Nelson, author of the new O'Reilly book, Software Engineering for Data Scientists, discusses the collaboration between data scientists and software engineers -- an increasingly common pairing on machine learning and AI projects. Host Philip Winston speaks with Nelson about the role of a data scientist, the difference between running experiments in notebooks and building an automated pipeline for production, machine learning vs. AI, the typical pipeline steps for machine learning, and the role of software engineering in data science. Brought to you by IEEE Computer Society and IEEE Software magazine.

Jonathan Horvath of Z-bit discusses physical access control systems (PACS) with host Jeremy Jung. They start with an overview of PACS components and discuss the proprietary nature of the industry, the slow pace of migration to open standards, and why Windows is commonly used. Jonathan describes the security implications of moving from isolated networks to the cloud, as well as credential vulnerabilities, encryption using symmetric keys versus asymmetric keys, and the risks related to cloning credentials. They also consider several standards, including moving from Wiegand to the Open Supervised Device Protocol (OSDP), as well as the Public Key Open Credential (PKOC) standard, and the open source OSDP implementation that Jonathan authored. Brought to you by IEEE Computer Society and IEEE Software magazine.

Cody Ebberson, CTO of Medplum, joins host Sam Taggart to discuss the constraints that working in regulated industries add to the software development process. They explore some general aspects of developing for regulated industries, such as medical and finance, as well as a range of specific considerations that can add complexity and effort. Cody describes how translating regulatory requirements into test specifications and automating those tests can help streamline software development in these regulated environments.  Brought to you by IEEE Computer Society and IEEE Software magazine.

Nick Tune and Jean-Georges Perrin join host Giovanni Asproni to talk about their proposed approach to modernizing legacy systems. The episode starts with some high-level perspective to set context for the approach described in their book, Architecture Modernization (Manning, 2024). From there, the discussion turns to important details, including criteria for deciding which aspects to revisit; some of the activities, processes, and tools; and the importance of data engineering in modernization efforts. Nick and Jean-Georges describe how to successfully implement an architecture-modernization effort, and how to fit that work with the teams' other priorities. The episode finishes with some warnings about the typical risks associated with modernizing a legacy system, and suggestions on how to mitigate them. This episode is sponsored by QA Wolf.

Steve Smith, founder and principal architect at Nimble Pros, joins host Jeff Doolittle for a conversation about software quality. The episode begins with a discussion of why software quality matters for businesses, customers, and developers. Steve explains some patterns and practices that help teams design for quality. They discuss in detail the practices of testing and quality assurance, and the conversation wraps up with suggestions for fostering a culture of quality in teams and organizations. Brought to you by IEEE Computer Society and IEEE Software magazine.

Sriram Panyam, CTO at DagKnows, discusses SaaS Control Planes with SE Radio host Brijesh Ammanath. The discussion starts off with the basics, examining what control planes are and why they're important. Sriram then discusses reasons for building a control plane and the challenges in designing one. They explore design and architectural considerations when building a SaaS control plane, as well as the key differences between a control plane and a data plane. This episode is sponsored by QA Wolf.

Stevie Caldwell, Senior Engineering Technical Lead at Fairwinds, joins host Priyanka Raghavan to discuss zero-trust network reference architecture. The episode begins with high-level definitions of zero-trust architecture, zero-trust reference architecture, and the pillars of Zero Trust. Stevie describes four open-source implementations of the Zero Trust Reference Architecture: Emissary Ingress, Cert Manager, LinkerD, and the Policy Engine Polaris. Each component is explored to help clarify their roles in the Zero Trust journey. The episode concludes with a look at the future direction of Zero Trust Network Architecture. This episode is sponsored by QA Wolf.

Jim Bugwadia, CEO of Nimrata and a committer to the kyverno projects, joins host Robert Blumen for a discussion of policy-as-code and the open source kyverno project. The discussion covers the nature of policies; policies and security; policies and compliance to standards; security scans that generate reports compared to tools that allow or deny operations at run time; kyberno as a kubernetes service; the kyveno helm charts; the components of kyverno; bootstrapping a kubernetes cluster with kyverno; installing policies; implementing policies; customizing policies; packaging and installing policies; kubernetes dynamic admission controllers; the kyverno admission controller; securing kyverno itself; observability of kyverno; types of reports and messages available to cluster users. This episode is sponsored by QA Wolf.

Itamar Friedman, the CEO and co-founder of CodiumAI, speaks with host Gregory M. Kapfhammer about how to use generative AI techniques to support automated software testing. Their discussion centers around the design and use of Cover-Agent, an open-source implementation of the automated test augmentation tool described in the Foundations of Software Engineering (FSE) paper entitled “Automated Unit Test Improvement using Large Language Models at Meta“ by Alshahwan et al. The episode explores how large-language models (LLMs) can aid testers by automatically generating test cases that increase the code coverage of an existing testing suite. They also investigate other automated testing topics, including how Cover-Agent compares to different LLM-based tools and the strengths and weaknesses of using LLM-based approaches in software testing.

Goran Petrovic, a Staff Software Engineer at Google, speaks with host Gregory M. Kapfhammer about how to perform mutation testing on large software systems. They explore the design and implementation of the mutation testing infrastructure at Google, discussing the strategies for ensuring that it enhances both developer productivity and software quality. They also investigate the findings from experiments that quantify how mutation testing enables software engineers at Google to write better tests that can detect defects and increase confidence in software correctness. Brought to you by IEEE Computer Society and IEEE Software magazine.

Abhay Paroha, an engineering leader with more than 15 years' experience in leading product dev teams, joins SE Radio's Kanchan Shringi to talk about cloud migration for oil and gas production operations. They discuss Abhay's experiences in building a cloud foundation layer that includes a canonical data model for storing bi-temporal data. They further delve into his teams' learnings from using Kubernetes for microservices, the transition from Java to Scala, and use of Akka streaming, along with tips for ensuring reliable operations. Brought to you by IEEE Computer Society and IEEE Software magazine.

Luis Rodríguez, CTO of Xygeni.io, joins host Robert Blumen for a discussion of the recently thwarted attempt to insert a backdoor in the SSH (Secure Shell) daemon. OpenSSH is a popular implementation of the protocol used in major Linux distributions for authentication over a network. Luis describes how a backdoor in a supporting library was recently discovered and removed before the package was published to stable releases of the Linux distros. The conversation explores the mechanism of the attack through modifying a function table in the runtime; how the attack was inserted during the build; how the attack was carefully staged in a series of modifications to the lz compression library; the nature of “Jia Tan,” the entity who committed the changes to the open source project; social engineering that the entity used to gain the trust of the open source community; what forensics indicates about the location of the entity; hypotheses about whether criminal or state actors backed the entity; how the attack was detected; implications for other open source projects; why traditional methods for detecting exploits would not have helped find this; and lessons learned by the community. Brought to you by IEEE Computer Society and IEEE Software magazine.

Emily Bache, founder of the Samman Technical Coaching Society and author of several books about technical agile coaching, talks with SE Radio host Sam Taggart about katas and the importance of practice. They discuss how practicing in a safe environment helps developers to learn new skills and build new habits. They also talk about how Samman coaching combines this sort of deliberate practice with applying the lessons learned in practice to the production code base. They also touch briefly on the advantages of working in an ensemble fashion. Brought to you by IEEE Computer Society and IEEE Software magazine.

Hans Dockter, the creator of the Gradle build tool and founder of Gradle Inc, the company behind the developer productivity platform Develocity, joins SE Radio host Giovanni Asproni to talk about developer productivity. They start with some definitions and an explanation of the importance of developer productivity, its relationship with cognitive load, and the big impact that development tools have on it. Hans describes how to implement developer productivity metrics in an organization, as well as warns about some pitfalls. The episode closes with some discussion on Hans's views on the future of this discipline, as well as some near-term developments and expectations. Brought to you by IEEE Computer Society and IEEE Software magazine.

Chuck Weindorf, a retired IT director and chief engineer with nearly 40 years' experience in software engineering, joins host Jeff Doolittle for a conversation about the concepts in Chuck's book, Leaders & Software Engineers. Through personal anecdotes and insights gleaned from his extensive career, Chuck underscores quality assurance's critical role in building trust with users and fostering a proactive culture of defect resolution within development teams. He highlights how ethical considerations underpin trust and integrity within the software engineering profession. Chuck and Jeff examine the significance of thorough documentation and the vital role of effective communication in overcoming silos within organizations, and ensuring that projects meet their intended objectives while maintaining high standards of quality and reliability. They discuss how to cultivate a positive, innovative culture within engineering teams. Chuck shares strategies for addressing challenges and opportunities presented by change, advocating for adaptability and continuous learning as essential qualities for both new and experienced engineers navigating the evolving technological landscape. He offers advice for those transitioning into leadership roles, emphasizing the importance of developing soft skills and the ability to empathize with and inspire team members. Finally, the episode explores the potential impact of emerging technologies, such as low-code platforms and artificial intelligence. Brought to you by IEEE Computer Society and IEEE Software magazine.