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I’m a senior mobile + backend engineer with 20+ years in software (PHP since 2002; professional since 2005) and 10+ years building mobile apps. I help teams ship and stabilize real products—especially apps that are “almost done” but stuck on crashes, performance, flaky networking, or release blockers. What I can help you with (fast, practical): • iOS (Swift, SwiftUI, UIKit): crash fixes, performance/memory, concurrency issues, architecture cleanup • Flutter (iOS/Android/macOS): reliability, state consistency, networking/retry behavior, release readiness • Backend stability (PHP/Laravel or custom, Python/Django, Rails): idempotency, queues, DB performance, webhook safety • Firebase + mobile reliability: Auth/Firestore rules, Cloud Functions patterns, analytics/instrumentation • Monetization + shipping: RevenueCat/IAP reliability, App Store Connect/Play Console, CI/CD, rejection handling Recent work includes taking a messy iOS codebase (CakeClub) to production-ready with a Firebase Cloud Functions v2 backend, stronger security patterns, CI/release automation, and RevenueCat integration; and delivering major cross-platform Flutter work (BillBlaster) including design refinements, admin tooling, and push notification features. If you come with logs/screenshots (Crashlytics traces, network errors, repro steps), I’ll give you a clear diagnosis and a prioritized fix plan—and if it makes sense, I can execute the fixes as a focused sprint.
I dwell in the midst of complex problems. I make my bed with solutions to problem. Have built solutions ranging from complex stocks management system with realtime stock data synchronisation to web applications that manage and analyse user data in their millions. In summary, I love seeing problems solved. I am also a debugger tool (kind of) and a teacher. I spot and easily detect bugs lurking in your code within minutes. I specialised in Javascript, but you would find me working with ruby, python, Go and even dart. Would love to help out with your project and help you find those solutions that have proven difficult, together we can bring walls down.
I am a full-stack engineer and engineering leader with over 25 years of experience across big tech, startups, and research organizations. I have worked at Google, Microsoft, Salesforce, Tableau, T-Mobile, and Bill Gates’ think tank, the Institute for Disease Modeling at IV Labs, which later merged into the Bill and Melinda Gates Foundation. Most recently, I led engineering for Gemini Code Assist at Google, helping take an AI coding assistant from early development to adoption by millions of developers using VS Code and IntelliJ. My work focused on backend systems, developer tooling, platform architecture, and AI-assisted development, with an emphasis on performance, scalability, and real-world developer workflows. I have also founded startups, served as a CTO, raised venture funding, and taken products from prototype to production and through acquisition. I enjoy working across the stack, wearing multiple hats, and solving ambiguous problems. I mentor engineers at all stages, from complete beginners to senior candidates preparing for technical interviews. My approach is practical and structured, focusing on strong fundamentals, clear thinking, and building confidence. My primary technical focus today is JavaScript, TypeScript, Node.js, platform engineering, and AI-driven developer tools, with experience across many other languages as needed.
I'm a chilean developer with years of experience in web technologies.
I'm Jon and I love mentoring junior engineers! For 10+ years I lived & breathed 📱mobile.. worked on top 10 App Store apps (Google Maps, Gmail, Google search) as well as a bunch that didn't see the light of day. The pressure took it's toll finally & I followed the "burnout track" and took 6 month sabbatical (that would later turn into almost 3 years). My family & I left the bay with 8 suitcases of all our belongings, and i thought tech would only be in my rear view mirror... I exchanged the standup desks & nap pods of silicon valley to serve families in the slums of Philippines & Cambodia. To my utter surprise and delight though, these families were happier than I was. Something was missing? We came back to the mainland & I tried my hand at using tech for good, by working on the "strava for sobriety" app and it was amazing. I was finally helping ppl again! But as w/ many startups, funding fell through... I then went to help a big, well-funded startup who's goal was "tech for good", specifically in non-profit church space. I was so excited! And somehow, in the midst of "strat sums" and super fun budgets I lost my way... I actually kind of lost heart.
Hey there! I'm Owais Jamil and I’m a software engineer with roots in New England and Austin, TX. Right now I’m enrolled as a master’s candidate at the University of Texas, most recently worked as a senior backend engineer at Edlink. I have experience working on mobile and web apps, and have tutored and taught others in the past.
An accomplished and high-motivated IT professional with 6+ years experience of IT leadership involved in web development, application development and System & Solution Architecture. My main competency is in building rich client-side applications, on both sides back-end and front-end. I strongly believe in TDD as the only way to build a bullet-proof code that makes everyone happy and it allows me to rest at night. Reaching 100% test coverage is my passion. **SKILLS:** ✅ Specialities: Computer Engineering, Software Engineer, Web Development, Mobile development, Open Source ✅ Languages:Ruby(6 years), Javascript(4 years), Nodejs(1 year), Elixir(1 year) ✅ Backend Frameworks: Ruby On Rails(6 years), Phoenix(1 year) ✅ Frontend Frameworks: AngularJS(4 years), ReactJS(2 years) ✅ Relational database:Postgresql(6 years), MySQL(6 years) ✅ NoSql databases:Elasticsearch(4 years), Redis(3 years), MongoDB(3 years) ✅ Other technologies:Rabbitmq, Redux, Universal rendering, HTML, CSS, SCSS, BEM, Docker, AWS, Google Cloud Platform, Webpack, Git, Progressive web apps **LINKS:** https://github.com/mpospelov https://stackoverflow.com/users/2460416/mpospelov https://codementor.io/mpospelov https://www.upwork.com/o/profiles/users/_~0182077648cc549f21/ https://www.toptal.com/resume/mikhail-pospelov
Senior software engineer with 5+ years of experience in backend web technologies including Ruby on Rails, Python, Go, and MySQL. Currently at Tesla, previously EasyPost. Bachelor's in Computer Science. Main strengths include architecting applications and backend API development, have also worked in fullstack roles. The best part of software engineering is that you never stop learning new things.
Software Engineer
4+ years experienced & result oriented software engineer skilled in both enterprise and SaaS software product development. Proficient at implementing core backend and frontend development tasks including 3rd party API integrations, REST and GraphQL API design, and development. Adept at employing the Agile methodology of software development to deliver high-quality products. Possess a passion to learn and work on the latest technologies. Provides leadership, training & feedback to ensure that teams perform to the best of their abilities & deliver consistently.
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