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I've been teaching programming since 2018 to people of different ages. I'm specialized mostly in teaching how to start programming from scratch: basics of programming languages + basics of computer science. But I always have in mind a long-term perspective for my students and try to develop useful skills just from the start of our work.
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 am a software engineering leader with over 10 years of experience building and scaling full-stack web and mobile applications. I have worked across backend, frontend, mobile, cloud, and DevOps, progressing from software engineer to CTO-level roles. My experience includes Python, Django, NodeJS, React.js React Native, Vue.js, Ruby on Rails, Java EE, Asp.NET, Elixir, and Wordpress, along with databases like Elasticsearch and Cassandra. I have designed and deployed scalable systems on AWS using Docker, CI/CD pipelines, and modern DevOps architecture. I enjoy leading teams, designing system architecture, and delivering reliable, production-ready software solutions for complex business needs.
I'm a **polyglot fullstack software developer** (*I'm able to effectively work with multiple languages, tools, and frameworks*) with over 13+ years of industry experience in web application development. I'm also an instructor and mentor in various bootcamps having lead class cohorts, mentored groups of students and 1:1 tutoring sessions. I'm experienced in **Python**, **ECMAScript** (Javascript or Node.js), **Java**, **C#** **Ruby**, **PHP**, and even **Scala**. I work in both frontend and backend spectrums of the web stack, so whether you're debugging something in React.js or you're stuck on a complex SQL query, I'm more than happy to help in your code debugging adventures. My instruction style is that I like to guide the student towards learning *how* to solve rather than simply giving you the solution - I don't believe a student should be stuck on always referring back to a senior developer to get unblocked, but should be empowered to solve their own problems. Now that's real mentorship!
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.
Technical cofounder, board member, and seasoned operator with experience building and growing early stage companies (pre-seed to late Series), large scale government and commercial projects, and nonprofits.
My name is Luis de Jesús López Hernández, and I'm a 40-year-old Web Applications Engineer and Game Developer. I'm based in Mérida, Yucatán, México. My academic background includes a Master's Degree in Design and Comprehensive Development of Videogames from UNIAT University of Advanced Technologies (2020-2022). Before that, I earned an Engineering in Strategic Information Systems from the University of Mayab (2002-2006). Artificial Intelligence & Process Acceleration: I am currently assisting the company in the area of Artificial Intelligence, specifically by accelerating processes in administrative matters and in software development. I utilize 'vibe coding' for this purpose and implement Agents for certain processes.
I have 8 years of professional experience with software development mostly with Ruby on Rails, React and AWS. In my latest role as a staff software engineer I had the responsibility of keeping our platform performant and resilient while guiding a cross-funcional team of software engineers, designers, and product members to achieve company wide goals.
As a Senior Software Engineer with over a decade of professional experience, I specialize in creating scalable, high-performance platforms that drive business success. My expertise spans full-stack development, system design, cloud integration, and database management, all executed with a commitment to innovation and problem-solving. Key Achievements: -> Developed AI agents solutions for research through company documents and a multitude of sources -> Spearheaded the development of a project ingestion feature that streamlined client communication, reducing mismatches by over 30%, ensuring faster project initiation and completion. -> Integrated a decade's worth of research into an easily navigable insights library, improving knowledge accessibility for stakeholders by 40%. -> Coordinated the onboarding and management of a third-party outsourcing team, accelerating feature delivery timelines. -> Designed a codeless SaaS QA platform that automated mobile testing, reducing testing time and enhancing reliability across app versions. -> Throughout my career, I have embraced emerging technologies like Generative AI for automation and adopted future-proof strategies to ensure platform stability and responsiveness. At Wonder, I lead initiatives that leverage generative AI for delivering client-centric solutions. Core Competencies: -> AI engineering and harness -> Full-Stack Development -> Cloud Solutions -> Software Quality Assurance and Automation -> Collaborative System Design and Future-Ready Architecture Beyond technical skills, I excel in cross-functional collaboration, aligning diverse stakeholders to deliver impactful results. Passionate about crafting systems that exceed expectations, I am driven by a vision to innovate and elevate the digital experience for users worldwide.
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