Abel Mengistu is the cofounder and CEO of FlutterFlow, the low-code visual app builder that has enabled over 2 million users to create production-ready Flutter applications without deep coding expertise. A former Google senior software engineer who worked on Google Maps and ATAP hardware, he co-founded FlutterFlow in 2020 with Alex Greaves after a failed restaurant-recommendation startup taught them the real bottleneck was app development complexity. Accepted into Y Combinator's Winter 2021 batch after applying past the deadline, they famously survived 'No-sleep November' to build FlutterFlow 1.0 in a single month. The company raised a $25.5M Series A from GV (Google Ventures) in January 2024, has grown to 173 employees, and in 2025 launched Dreamflow - an AI-powered builder that generates production-ready app screens in roughly 10 seconds.
David Overmyer is the CEO of Raw Engineering, a San Francisco-based digital product and cloud engineering firm that built Contentstack - now the world's leading headless CMS - and the DfanX sports fan engagement platform. A California-certified CPA with a career spanning auditing, CBS Interactive, and CFO roles at Bunchball and Thismoment, Overmyer joined Raw Engineering's orbit as CFO of Contentstack in 2017, steering its transition from a bootstrapped services company to a high-growth SaaS venture. Since 2018 he has led Raw Engineering as CEO, overseeing engagements for clients including the Miami Heat, Sacramento Kings, American Airlines, and VMware.
Igor Repeta is the CEO of Empat Tech, a Kyiv-based software development and outsourcing firm with nearly 200 engineers serving clients across 17 countries. He rose from Project Manager to Chief Executive Officer in four years, formally taking the helm in February 2026 after co-authoring the company's operational playbook as COO. Empat ranked #5 globally on the Clutch 100 Fastest-Growing Companies list in 2026 and holds back-to-back #1 Best IT Employer rankings in Ukraine (DOU 2024 and 2025). Beyond commercial growth, Repeta launched two civic tech projects during Russia's invasion of Ukraine: RevengeFor, a military fundraising platform channeling funds to ComeBackAlive, and HealUA, a peer-to-peer medical consultation platform for Ukrainian doctors.
Ken Kopilevich is the Co-Founder and CEO of NEKLO LLC, a bootstrapped custom software development firm he built from a small startup in 2008-2009 into a 200-person global operation with $15.9M in annual revenue and a 5.0 Clutch rating. Working from Novato, California, he oversees a company that spans FinTech, eCommerce, and Healthcare software, with development centers in Eastern Europe. A dual-degree engineer with an MS from UC Berkeley and an MS from Riga Polytechnic University, Ken spent years at companies like AiBUY and Connected Life before channeling that experience into NEKLO, which has completed 450+ projects and retains 85% of its clients year over year.
Oleg Lola is the CEO and founder of MobiDev, a custom software development company he built from a startup in 2009 into a 334-person global operation serving clients across healthcare, retail, fintech, and beyond. Based in San Francisco and known for his pragmatic take on AI adoption, Lola is also a Forbes Technology Council member and co-founder of Treegress, an autonomous QA startup launched in 2023. He's the kind of engineer-turned-executive who will tell you straight up that AI is 'heavily overhyped' - and then show you exactly how to use it anyway.
Simon Grimm is a German developer educator and solo founder who has spent over a decade teaching web developers to build mobile apps. Best known for Galaxies.dev and his earlier Devdactic blog, he was voted the #1 React Native video creator by the community. Beyond tutorials, he's building Tiny Harvest - a cozy idle farm RPG - entirely by himself. He went fully self-employed in 2017 and hasn't looked back.
Mark Moeykens is the creator behind Big Mountain Studio, the go-to source for SwiftUI visual learning. A Vermont-born, Salt Lake City-based iOS developer by day and prolific author by night, he pioneered the 'picture book' approach to programming education - combining code examples with visual diagrams so developers remember concepts up to 60,000 times faster. His library of SwiftUI Mastery books has reached 30,000+ developers across 140+ countries, and his free SwiftUI guide alone has been downloaded over 30,000 times.
Paul Hudson is a British Swift developer, author, and educator based in Bath, England, best known as the creator of Hacking with Swift - the world's largest Swift tutorial site. With over 700,000 unique monthly visitors, 20+ books, and free courses like 100 Days of SwiftUI, he has taught hundreds of thousands of developers how to build iOS apps. A former tech journalist at Future Publishing, he invented FutureFolio for iPad publishing, then pivoted to become the go-to teacher for the Swift community - co-hosting the Swift over Coffee podcast, maintaining popular open-source projects like ControlRoom and Ignite, and raising over $40,000 for Black Girls Code through the Swift for Good charity anthology.
Sean Allen is a self-taught iOS developer, Swift educator, and content creator based in Charlotte, NC, best known for his YouTube channel with 170,000+ subscribers dedicated to iOS and Swift programming. A career changer who wrote his first line of code at ~32 and landed his first iOS job in just 7 months, he turned a bitter string of big-tech interview rejections into a YouTube channel built 'out of spite' - which became one of the most trusted independent iOS education platforms on the internet. Today he runs a three-pillar independent business: content creation, consulting, and indie app development, with his flagship app Creator View giving YouTube creators a business dashboard for channel analytics and income tracking.
Vincent Pradeilles is a French iOS engineer and Swift educator based in Lyon, France. By day he is a Founding Solutions Engineer at Photoroom, the AI-powered photo editing app. By night (and weekends) he runs swiftwithvincent.com — a blog, newsletter, and YouTube channel that distills complex Swift patterns into bite-sized, practical tips. With 26,000+ Twitter followers, ~1,000-starred open source repos, and talks at FrenchKit, dotSwift, try! Swift Tokyo, NSSpain, and iOS Conf SG, he is one of the most recognized French voices in the global Swift community.