Tech Lead Journal

“Reliability is the most important thing. Your users define your reliability, so make sure you’re measuring the right thing. And 100% is out of the question, so pick the right target." Alex Hidalgo is the Principal Reliability Advocate at Nobl9 and author of “Implementing Service Level Objectives”. In this episode, we discussed the practical guide on how to implement SRE and SLOs. Alex started by explaining the basic concept of service reliability and service truths. He then explained the concept of reliability stack, that includes the famous SRE concepts: SLI, SLO, and error budgets. Alex then shared his insights on how we can define a service reliability target, why a higher reliability target is expensive, and the risk of a service of being too reliable. Towards the end, Alex shared his tips on how we can build an SRE culture and how we can use the error budget as a communication tool within the organization. Listen out for: Career Journey - [00:07:19] Understanding SRE & SLO - [00:14:17] Service & Reliability - [00:17:30] Service Truths - [00:21:06] Reliability Stack - [00:23:45] Defining Reliability Target - [00:27:11] Higher Reliability is Expensive - [00:29:27] SLI - [00:34:26] Measuring Correctness - [00:37:30] Critical User Journey - [00:41:49] Being Too Reliable - [00:47:18] Communicating with Error Budget - [00:51:02] Building SRE Culture - [00:54:13] 3 Tech Lead Wisdom - [00:57:57] _____ Alex Hidalgo’s Bio Alex Hidalgo is the Principal Reliability Advocate at Nobl9 and author of “Implementing Service Level Objectives”. During his career he has developed a deep love for sustainable operations, proper observability, and using SLO data to drive discussions and make decisions. Alex’s previous jobs have included IT support, network security, restaurant work, t-shirt design, and hosting game shows at bars. When not sharing his passion for technology with others, you can find him scuba diving or watching college basketball. He lives in Brooklyn with his partner Jen and a rescue dog named Taco. Alex has a BA in philosophy from Virginia Commonwealth University. Follow Alex: Twitter – @ahidalgosre Nobl9 – https://www.nobl9.com/ Website – https://www.alex-hidalgo.com/ Our Sponsors DevTernity 2022 (devternity.com) is the top international software development conference with an emphasis on coding, architecture, and tech leadership skills. The lineup is truly stellar and features many legends of software development like Robert "Uncle Bob" Martin, Kent Beck, Scott Hanselman, Venkat Subramaniam, Kevlin Henney, and many others! The conference takes place online, and we have the 10% discount code for you: AWSM_TLJ. Skills Matter is the global community and events platform for software professionals. It is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/96.

“You are your greatest asset in your career and in your life. Invest in you personally in all areas of life in order to live your best life." Jeff Perry is an engineering coach, the founder of More Than Engineering and the co-host of the Engineering Career Coach podcast. In this episode, Jeff shared the important role of a coach or mentor in our engineering career. We first discussed Jeff’s engineering career clarity checklist and why it is truly important to find the clarity in our career journey. Jeff then shared the role of an engineering career coach, how a coach can help us navigate our career, and the difference between a coach and a mentor. Throughout our discussion, we also touched on a few other topics, such as the Great Resignation, making intentional career transitions, transitioning to a leadership role, and the power of accountability. Listen out for: Career Journey - [00:06:59] More Than Engineering - [00:10:54] Engineering Career Clarity Checklist - [00:12:58] Finding the “Why” - [00:15:12] Genius Zone - [00:17:38] International Career Transition - [00:20:23] Great Resignation - [00:22:45] Engineering Career Coach - [00:25:32] Power of Accountability - [00:28:45] Transitioning to Leadership Role - [00:32:13] Letting Go - [00:35:37] Leadership Attributes - [00:39:32] Engineering Career Coach Poadcast - [00:42:41] 3 Tech Lead Wisdom - [00:44:30] _____ Jeff Perry’s Bio As a software, mechanical, and manufacturing engineering leaders, Jeff has designed and built many products and processes. Now he builds people. Most of his work now revolves around leadership and career coaching for engineering and technical professionals, including: Finding increased career fulfillment and making intentional career transitions Getting clarity and exploring new career possibilities Leadership and personal development for tech leaders Follow Jeff: LinkedIn – https://www.linkedin.com/in/jeffcperry/ Engineering Career Coach Podcast – https://engineeringmanagementinstitute.org/the-podcast/ More Than Engineering - https://morethan-engineering.com/ Engineering Career Accelerator - https://www.engineeringcareeraccelerator.com/ Our Sponsors DevTernity 2022 (devternity.com) is the top international software development conference with an emphasis on coding, architecture, and tech leadership skills. The lineup is truly stellar and features many legends of software development like Robert "Uncle Bob" Martin, Kent Beck, Scott Hanselman, Venkat Subramaniam, Kevlin Henney, and many others! The conference takes place online, and we have the 10% discount code for you: AWSM_TLJ. Skills Matter is the global community and events platform for software professionals. It is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/95.

“An engineering manager should make sure that the team has a good balance of delivering things that the business needs with enough capacity to do it sustainably over time." Patrick Kua is a seasoned technology leader with a passion to accelerate the growth and success of tech organisations and technical leaders. In this episode, we discussed Pat’s latest course, Engineering Manager Essentials, which covers all the building blocks required to be an effective Engineering Manager (EM). We first discussed what an EM role is, how it differs from a tech lead role, and the common manager vs IC career track. Pat shared his view on why being an EM is not a promotion and what are some of the success criteria to be a good EM. Towards the end, Pat shared some anti-patterns that EM should avoid to become successful. Listen out for: Pat’s Latest - [00:07:30] Engineering Manager Essentials - [00:09:25] The Role of Engineering Manager - [00:11:21] Difference With Tech Lead - [00:14:19] Manager and IC Paths - [00:16:28] EM Is Not a Promotion - [00:21:02] EM Success Criteria - [00:28:08] Multiplier Instead of Maker - [00:30:48] Course Structure - [00:33:21] Interviewing EM - [00:37:20] Antipattern 1: Continuing as a Maker - [00:39:58] Antipattern 2: Assuming Everyone Knows What You Do - [00:43:01] Antipattern 3: Optimizing Parts Instead of The Whole - [00:48:34] 3 Tech Lead Wisdom - [00:51:30] _____ Patrick Kua’s Bio Patrick Kua is a seasoned technology leader with 20+ years of experience having done a wide variety of roles including being a developer, tech lead, consultant, CTO and more. His current mission is accelerating the growth of technical leaders through coaching, mentoring and training. Follow Patrick: Website – https://patkua.com/ Twitter – @patkua LinkedIn – https://www.linkedin.com/in/patkua/ EM Essentials Course – https://www.patkua.com/em-essentials/ Tech Lead Academy – https://techlead.academy/ Level Up Newsletter – https://levelup.patkua.com/ Our Sponsors DevTernity 2022 (devternity.com) is the top international software development conference with an emphasis on coding, architecture, and tech leadership skills. The lineup is truly stellar and features many legends of software development like Robert "Uncle Bob" Martin, Kent Beck, Scott Hanselman, Venkat Subramaniam, Kevlin Henney, and many others! The conference takes place online, and we have the 10% discount code for you: AWSM_TLJ. Skills Matter is the global community and events platform for software professionals. It is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/94.

“We want to write as little software as possible, and we want it to have as much value as possible. If you actually focus on that, it means you have to be close to your customer." Dave Thomas is the founder & chairman of Bedarra Corp, creator of IBM Smalltalk, VisualAge for Java, Eclipse, Kx Analyst workbench and Skills Matter YOW! Australia conferences. In this episode, Dave shared about his personal research, 42D, on ideas we can use to develop high-value software rapidly. He started by describing the current developer’s productivity challenges and touched on the idea that big is not better, relating to the size of the team and code base, and how development tools are becoming more complicated and complex. We then discussed the importance of developers understanding domain knowledge, leveraging tools such as decision tables and spreadsheets, and how the choice of programming language actually matters. Towards the end, Dave shared about using a data-centric approach to deal with legacy systems and his perspective on query as the future of programming. Listen out for: Career Journey - [00:06:17] 42D - [00:15:26] Developer Productivity Challenge - [00:16:37] Maximum Value, Maximum Speed - [00:19:53] Big is Not Better - [00:21:24] Tools Getting More Complex - [00:26:43] Importance of Domain Knowledge - [00:31:02] Decision Tables and Spreadsheets - [00:39:10] Importance of Programming Languages - [00:41:55] Data-Centric Approach with Legacy - [00:47:02] Future Programming is Query - [00:50:51] 3 Tech Lead Wisdom - [00:54:31] _____ Dave Thomas’s Bio Dave Thomas is the founder and chairman of the YOW! Australia and Lambda Jam conferences, and is a GOTO Conference Fellow. He served as the Chief Scientists of KX Systems and the Managing Director of Object Mentor. Dave also co-founded Object Technology International, becoming CEO of IBM OTI Labs after its sale to IBM. Nowadays, Dave is the Chairman of Bedarra Corp, a company he co-founded that created the Ivy visual analytics workbench. Dave is recognized as an ACM Distinguished Engineer for his contributions to Object Technology, which includes IBM VisualAge and Eclipse IDEs, Smalltalk, and Java virtual machines. Follow Dave: Twitter – @daveathomas LinkedIn – https://www.linkedin.com/in/davidathomas Website – http://www.davethomas.net Email – dave@bedarra.com Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/93.

“Testing is an activity that happens throughout. It is not a phase that happens at the end. Start thinking about the risks at the very beginning, and how we are going to mitigate those with testing." Janet Gregory and Lisa Crispin are the co-authors of several books on Agile Testing and the co-founders of Agile Testing Fellowship. In this episode, Janet and Lisa shared the agile testing concept and mindset with an emphasis on the whole team approach, which was then followed by an explanation of the holistic testing concept with a complete walkthrough how we can use the approach in our product development cycle, including how Continuous Delivery fits into holistic testing. Janet and Lisa also described some important concepts in agile testing, such as the agile testing quadrants (to help classify our tests) and the power of three (aka the Three Amigos). Towards the end, Janet and Lisa also shared their perspective on exploratory testing and testing in production. Listen out for: Career Journey - [00:06:35] Agile Testing - [00:13:56] Whole Team - [00:15:17] Agile Testing Mindset - [00:19:19] Holistic Testing - [00:24:42] Continuous Delivery - [00:34:53] Agile Testing Quadrants - [00:39:03] The Power of Three - [00:42:50] Exploratory Testing - [00:47:08] Testing in Production - [00:50:49] 3 Tech Lead Wisdom - [00:54:10] _____ Follow Janet and Lisa: Janet’s Website – https://janetgregory.ca Janet’s Twitter – @janetgregoryca Janet’s Linkedin – https://www.linkedin.com/in/janetgregory Lisa’s Website – https://lisacrispin.com Lisa’s Twitter – @lisacrispin Lisa’s Linkedin – https://www.linkedin.com/in/lisa-crispin-88420a Agile Tester Blog – https://agiletester.ca/blog Agile Testing Fellowship Website – https://agiletestingfellow.com Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/92.

"Pull, don’t push. Don’t tell people what to do. Tell them what results you want and let them figure out how best to achieve the outcome that’s needed." Mary & Tom Poppendieck are the co-authors of several books related to Agile and Lean, including their award-winning book “Lean Software Development: An Agile Toolkit” published in 2003. In this episode, Mary & Tom shared about lean software development, its principles and mindset, and the concept of a pull system. Mary & Tom then pointed out the problems of having proxies in software development and how it is much better to manage by the outcomes by having the people directly figuring out the best way to achieve those outcomes. Later on, Mary & Tom talked about the concept of flow, why it is important to optimize flow, and how to optimize flow by analyzing the value stream map and minimizing approval process. Listen out for: Career Journey - [00:05:26] Lean Software Development - [00:18:50] Pull, Don’t Push - [00:23:34] Proxies - [00:31:00] Managing by Outcome - [00:37:10] Optimizing Flow - [00:41:18] Value Stream Map & Approvals - [00:47:00] 3 Tech Lead Wisdom - [00:55:05] _____ Mary Poppendieck’s Bio Mary wrote the now-classic book “Lean Software Development: an Agile Toolkit”, proposing an approach which focuses on customers, respects software engineers, concentrates on learning, and leverages flow. Mary is a popular writer and speaker. Sequels of her first book include “Implementing Lean Software Development: from Concept to Cash”, “Leading Lean Software Development: Results are Not the Point” and “The Lean Mindset: Ask the Right Questions”. Tom Poppendieck’s Bio Tom has over three decades of experience in computing, including several years of work with object technology. Tom holds a PhD in Physics and has taught physics for ten years. He is the coauthor of four books: “Lean Software Development” (2003), “Implementing Lean Software Development” (2006), “Leading Lean Software Development” (2009) and “Lean Mindset” (2013). Follow Mary and Tom: Website – http://www.poppendieck.com/ Mary’s blog – http://www.leanessays.com/ Mary’s Twitter – @mpoppendieck Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/91.

“The simplest way to describe craftsmanship is pride of workmanship. It is the mindset that you are working on something important and you are going to do it well." Robert C. Martin (aka Uncle Bob) is the co-founder of cleancoders.com, an acclaimed speaker at conferences worldwide, and prolific author of multiple best-selling books. In this episode, Uncle Bob shared some insights from his latest book, “Clean Craftsmanship”. He first started by sharing the current major challenge of the software development industry, i.e. as a young discipline, it suffers from the state of perpetual inexperience amid exponential acceleration of demand for programmers, which drove Uncle Bob writing the book to help define disciplines, standards and ethics for software craftsmanship. He then touched on the five key disciplines of clean craftsmanship, specifically focusing on test-driven development and refactoring. Towards the latter half, Uncle Bob described a few essential standards and ethics of clean craftsmanship, such as never ship s**t, always be ready, do no harm, and estimate honestly. Listen out for: Career Journey - [00:07:29] Clean Craftsmanship - [00:10:54] Programmer as a Profession - [00:15:31] Craftsmanship - [00:18:46] Disciplines - [00:22:45] Disciplines: Test-Driven Development - [00:28:50] Disciplines: Refactoring - [00:34:32] Code Coverage - [00:39:02] Standard: Never Ship S**t - [00:42:35] Standard: Always Be Ready - [00:47:16] Ethics: Do No Harm - [00:50:01] Ethics: Estimate Honestly - [00:53:56] 2 Tech Lead Wisdom - [00:57:50] _____ Robert C. Martin’s Bio Robert Martin (Uncle Bob) has been a programmer since 1970. He is the co-founder of the online video training company cleancoders.com and founder of Uncle Bob Consulting LLC. He served as Master Craftsman at 8th Light inc and is an acclaimed speaker at conferences worldwide. He is a profilic writer and has published hundreds of articles, papers, blogs, and best-selling books including: “The Clean Coder”, “Clean Code”, “Agile Software Development: Principles, Patterns, and Practices”, and “Clean Architecture”. He also served as the Editor-in-chief of the C++ Report and as the first chairman of the Agile Alliance. Follow Uncle Bob: Twitter – @unclebobmartin Clean Coder – http://cleancoder.com Clean Coders – https://cleancoders.com GitHub – https://github.com/unclebob Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/90.

“The goal of software is often to sustain an organization. An organization invests in software in order to achieve some goal and hopefully to sustain itself in helping it achieve that goal." Mark Seemann is an acclaimed author, international speaker, and a highly experienced developer. In this episode, Mark shared some insights from his latest book, “Code That Fits in Your Head”, on how to write sustainable software and manage software complexity. Mark first started by sharing why he wrote this book and explained why software development is hard. He also pointed out the difference between software engineering and other physical engineering disciplines, especially on the set of constraints. Mark then explained the importance of writing sustainable software and shared the perspective that code is a liability instead of an asset. Towards the end, Mark shared about the Rule of 7 as a guideline to manage code complexity and a few practices we can use to build sustainable software, such as checklist, vertical slice, x-driven development, and command query separation. Listen out for: Career Journey - [00:06:26] Code That Fits in Your Head - [00:07:49] Software Development is Hard - [00:10:55] Software Engineering vs Physical Engineering - [00:15:01] Sustainable Software - [00:17:58] Code is a Liability - [00:19:55] Rule of 7 - [00:22:43] Checklist - [00:31:23] Vertical Slice - [00:35:52] X-Driven Development - [00:39:47] Command Query Separation - [00:45:07] 3 Tech Lead Wisdom - [00:49:38] _____ Mark Seemann’s Bio Mark Seemann is a bad economist who’s found a second career as a programmer, and he has worked as a web and enterprise developer since the late 1990s. As a young man, Mark wanted to become a rockstar, but unfortunately had neither the talent nor the looks – later, however, he became a Certified Rockstar Developer. He has also written a Jolt Award-winning book about Dependency Injection, given more than a 100 international conference talks, and authored video courses for both Pluralsight and Clean Coders. He has regularly published blog posts since 2006. He lives in Copenhagen with his wife and two children. Follow Mark: Website – https://blog.ploeh.dk Twitter – @ploeh LinkedIn – https://www.linkedin.com/in/ploeh Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/89.

Liz Fong-Jones, co-author of the "Observability Engineering" book and Principal Developer Advocate for SRE and Observability at Honeycomb, discusses observability and its importance in the industry. She explains the core analysis loop, cardinality, and dimensionality, and the concept of debugging from first principles. She also talks about observability-driven development and the observability maturity model. Other topics include implementing observability, the challenges of understanding complex cloud-native microservices, and the importance of social alignment in observability.

“You don’t know what you don’t know. So when you’re learning something, it’s very hard to identify your own knowledge gaps, especially if you’re a programmer and you’re moving from one language to another." Jeremy Walker is the co-founder of Exercism and Kaido. In this episode, Jeremy first shared about Exercism, a not-for-profit online platform for learning different programming languages. He explained the importance of programming in the idiomatic way, the role of mentorship when learning new languages, and shared his experiences running Exercism as one of the largest open source program, such as how to get consensus and how to run remote distributed teams. Later, Jeremy then talked about Kaido, an employee culture platform for building happier, healthier, and better connected teams. He shared how companies could strive to do more to build company culture before then shared some practical tips on how we can improve our personal wellbeing. Listen out for: Career Journey - [00:05:08] Exercism - [00:08:24] Programming in Idiomatic Way - [00:11:34] Mentorship When Learning Languages - [00:13:52] Inclusiveness & Equality - [00:17:04] Running Large Open Source - [00:21:19] Getting Consensus - [00:27:11] Running Remote Distributed Teams - [00:30:42] Kaido for Wellbeing and Culture - [00:37:00] Tips on Personal Wellbeing - [00:43:40] 3 Tech Lead Wisdom - [00:49:13] _____ Jeremy Walker’s Bio Jeremy Walker is the co-founder of Exercism and Kaido. He is a software developer and entrepreneur who has been building tech businesses and not-for-profits for over 15 years. He is passionate about building great places to work and creating opportunity through education. In his space time he boulders and gets geeky about coffee. Follow Jeremy: Exercism – https://exercism.org/ Kaido – https://kaido.org/ Twitter – @iHiD LinkedIn – https://www.linkedin.com/in/ihidjeremywalker/ GitHub – https://github.com/ihid Our Sponsor Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals. Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones. Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends. Like this episode? Subscribe on your favorite podcast app and submit your feedback. Follow @techleadjournal on LinkedIn, Twitter, and Instagram. Pledge your support by becoming a patron. For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/87.