Kaiwan N Billimoria taught himself BASIC programming on his dad's IBM PC back in 1983. He was programming in C and Assembly on DOS until he discovered the joys of Unix, and by around 1997, Linux! Kaiwan has worked on many aspects of the Linux system programming stack, including Bash scripting, system programming in C, kernel internals, device drivers, and embedded Linux work. He has actively worked on several commercial/FOSS projects. His contributions include drivers to the mainline Linux OS and many smaller projects hosted on GitHub. His Linux passion feeds well into his passion for teaching these topics to engineers, which he has done for well over two decades now. He's also the author of Hands-On System Programming with Linux, Linux Kernel Programming (and its Part 2 book) and Linux Kernel Debugging. It doesn't hurt that he is a recreational ultrarunner too.

Julian Balog is a senior software engineer with more than 15 years of experience in the industry. His primary work currently focuses on application delivery controllers, containerized workflows, networking, and security. With a never-ending passion for Linux and open source technologies, Julian is always in pursuit of learning new things while solving problems and making things work through simple, efficient, and practical engineering. He lives with his wife, two children, and an Aussie-doodle in the greater Seattle area, Washington.

Alexandru Calcatinge is an open-minded architect with a background in computer science and mathematics, and is constantly eager to learn new things. He is a senior university lecturer with a PhD in urban planning and regional development. With 13 years of experience in architectural programming and development, Alex teaches students about smart cities, big data, and open source technologies. He has authored four books and numerous scientific articles on urban and regional planning, with an emphasis on open source technologies in urban and rural development. Alex started using Linux in 2009 and never looked back. He has also been a certified Linux trainer since 2017 and teaches Ubuntu Server administration to students in Bucharest, Romania. Alex loves the DevOps philosophy and the possibilities that cloud technologies bring to the future. He is a certified programming analyst, computer network administrator, trainer, and designer.

Gabriel N. Schenker has more than 25 years of experience as an independent consultant, architect, leader, trainer, mentor, and developer. Currently, Gabriel works as Lead Solution Architect at Techgroup Switzerland. Prior to that, Gabriel worked as Lead Curriculum Developer at Docker and at Confluent. Gabriel has a Ph.D. in Physics, and he is a Docker Captain, a Certified Docker Associate, a Certified Kafka Developer and Operator, and an ASP Insider. When not working, Gabriel enjoys time with his wonderful wife Veronicah and his children.

Mikael Krief is a DevOps engineer who lives in France. He believes that Infrastructure as Code is a fundamental practice in DevOps culture. He is therefore interested in HashiCorp products and specializes in the use of Terraform. Mikael loves to share his passion through various communities, such as the HashiCorp User Groups. Over the years, he has contributed to many public projects, written various blog posts, published several books, and spoken at leading conferences. For his contributions and passion, he was nominated and selected as a HashiCorp Ambassador since 2019, and he has been awarded the Microsoft Most Valuable Professional (MVP) award for 7 years.

Gaurav Agarwal has a decade of experience as a Site Reliability Engineer, Architect, Tech Influencer, Trainer, Mentor, and a Developer. Currently, Gaurav works as Cloud SRE at ThoughtSpot Inc. Prior to that, Gaurav worked as a Cloud Solutions Architect at Capgemini and as a Software Developer at TCS. Gaurav has a B.Tech. in Electronics and Communication Engineering, and he is a Certified Kubernetes Administrator, Certified Terraform Associate and a Google Cloud Certified Professional Cloud Architect. When not working, Gaurav enjoys time with his wonderful wife Deepti and loves to read about History, Human Civilization and Arts.

PowerShell, Security

Gigi Sayfan has been developing software for 25+ years in domains as diverse as instant messaging, morphing, chip fabrication process control, embedded multimedia applications for game consoles, brain-inspired ML, custom browser development, web services for 3D distributed game platforms, IoT sensors, virtual reality, and genomics. He has written production code in languages such as Go, Python, C, C++, C#, Java, Delphi, JavaScript, and even Cobol and PowerBuilder for operating systems such as Windows (3.11 through 7), Linux, macOS, Lynx (embedded), and Sony PlayStation. His technical expertise includes databases, low-level networking, distributed systems, containers, unorthodox user interfaces, modern web applications, and general SDLC.

Nigel Poulton is a techoholic who spends his life creating books and training videos on the latest and greatest cloud technologies. He's the author of best-selling books on Docker and Kubernetes, as well as the most popular online training videos on the same topics. He's a Docker Captain. Prior to this, Nigel has held various infrastructure roles for large enterprises (mainly banks). When he's not playing with technology, he's dreaming about it. When he's not dreaming about it, he's reading and watching sci-fi. He wishes he lived in the future so he could explore spacetime, the universe, and tons of other mind-blowing stuff. He likes cars, football (soccer), and food. He has a fabulous wife and three fabulous children.

Michael Kaufmann believes that people can be happy and productive at work. He loves DevOps, the cloud, and everything that has to do with modern software engineering and productivity. He is the founder and CEO of Xpirit Germany, and he has been working as a consultant and manager in the IT sector for more than 20 years. Michael helps his clients succeed: with cloud adoption, agile, and DevOps transformation. Microsoft has awarded him with the title Microsoft Regional Director (RD) and Microsoft Most Valuable Professional (MVP) - the latter in the category DevOps and GitHub - ever since 2015. Michael likes to share his knowledge in books, trainings, and as a speaker at international conferences.