Louie Bacaj is an Albanian-American software engineer turned entrepreneur who climbed from immigrant poverty in the Bronx to Senior Director of Engineering at Walmart, then walked away from it all in 2021 to build a portfolio of small bets. He co-founded the Small Bets learning community with Daniel Vassallo, runs the M&Ms Newsletter on Substack with 9,000+ subscribers, and teaches engineers how to level up their careers and build income outside the 9-to-5. His philosophy: make money with bits, diversify into atoms.
Luca Rossi is an Italian software engineer, entrepreneur, and writer based in Rome who turned a side project into one of the world's most-read engineering leadership newsletters. After co-founding and scaling travel startup Wanderio to 25M+ customers over eight years, he launched Refactoring in 2020 - a newsletter covering engineering management, software teams, and tech leadership. It now reaches 172,000+ subscribers, ranks in the top 10 Substack business newsletters, and generates approximately $300K/year in revenue, all operated solo. He also hosts the Refactoring Podcast, featuring guests like DHH, Kent Beck, and Camille Fournier, and in 2025 released Tolaria, a free open-source macOS knowledge base app built entirely with AI coding tools.
Nicola Ballotta is an Italian engineering leader with 25+ years of internet industry experience, currently serving as Director of Cloud at Namecheap where he built EasyWP — one of the world's most affordable managed WordPress hosting platforms — from prototype to production. He is best known as the creator of The Hybrid Hacker, a newsletter that grew from zero to 30,000 subscribers in 18 months before being acquired by Refactoring in June 2024. The combined publication now reaches 120,000+ readers and serves a 900+ member private community of engineering leaders.
Addy Osmani is an Irish software engineer and engineering leader who spent nearly 14 years shaping the modern web at Google Chrome - leading the teams behind Lighthouse, Core Web Vitals, Chrome DevTools, Puppeteer, and PageSpeed Insights. Now Director at Google Cloud AI, he bridges Gemini, Vertex AI, and the Agent Development Kit for millions of developers worldwide. Author of multiple O'Reilly books and curator of the Elevate newsletter, Osmani's work has touched over 20 million developers and his open-source projects have become industry standards.
Irina Stanescu is an engineering leadership coach, content creator, and former Tech Lead Manager at Google and Uber who turned a severe burnout episode into a mission. She founded The Caring Techie newsletter, now with 61,000+ subscribers, which challenges the tech industry's overwork culture and champions empathy, wellbeing, and influence as learnable leadership skills. Originally from Bucharest, Romania and based in San Francisco, she coaches engineers at companies like Anthropic, Google, and Meta, runs the highly-rated 'Impact through Influence' course on Maven, and speaks at major conferences including Craft Conference and LeadDev Berlin.
Jacob Kaplan-Moss is one of the co-creators of Django, the Python web framework that powers Instagram, Pinterest, and thousands of other sites worldwide. After 25+ years building and leading software teams - from a Kansas newspaper where Django was born, to Heroku's security org, to 18F's government tech unit - he walked away from the tech industry in 2024, training as an EMT and volunteering with search and rescue. He remains a board member of the Django Software Foundation, publishes the 'jacobian' newsletter on engineering craft, and is known for his influential writing on hiring, documentation, and the 'programming talent myth'.
Sarah Drasner is a Senior Director of Engineering at Google, where she leads the Core Developer Web Infrastructure powering Search, YouTube, Gmail, and Workspace. A rare hybrid of fine artist turned technologist, she spent 15+ years shaping how the web moves - as a Vue.js core team member, staff writer at CSS-Tricks, creator of the Night Owl VS Code theme (used by millions), and author of both 'SVG Animations' (O'Reilly) and 'Engineering Management for the Rest of Us'. Before Google, she was VP of Developer Experience at Netlify and a Principal Lead at Microsoft Azure. She is an award-winning speaker, teacher on Frontend Masters, and co-organizer of ConcatenateConf, a free conference for Nigerian and Kenyan developers.
Will Larson is a veteran engineering executive, author of four books on engineering leadership, and the voice behind the long-running newsletter Irrational Exuberance. He has scaled engineering teams at Digg, Uber, Stripe, Calm, and Carta, and currently serves as CTO at Imprint. His books - An Elegant Puzzle, Staff Engineer, The Engineering Executive's Primer, and Crafting Engineering Strategy - have sold tens of thousands of copies and are considered essential reading in the engineering leadership community.