Rafael OconFull-Stack & Mobile Engineer
5+ years building production software for US-based teams — healthcare platforms, IoT ecosystems, cross-platform mobile apps, and real-time systems. React Native, Next.js, .NET, Go.
Rafael Ocon
I'm a Full-Stack / Mobile Engineer with 5+ years working remotely with US-based teams across healthcare, wellness, IoT, real estate, and enterprise sectors.
I've shipped 9+ production mobile apps and contributed to 15+ cross-functional projects. My stack spans React Native, Next.js on the frontend to .NET, Go, and NestJS on the backend — with hands-on experience in HL7/FHIR, SignalR, Socket.IO, real-time systems, and CI/CD pipelines.
I'm recognized for ownership, proactive communication, and delivery under pressure — the kind of engineer who closes the loop without being chased.
Rafael Ocon
Open to new opportunities
Projects I've Shipped
Real systems built for production. Every project here was architected, shipped, and owned end-to-end.
The Breathing Room / PMC
Shipped 3 production apps (Provider, Client, Meditation) for a wellness platform. Implemented the full 'Cold Room' ice bath meditation module, built a super-admin dashboard reducing support workload by 50%, and integrated Stripe payments, Twilio Voice SDK, and real-time WebSockets.
- 3 production apps shipped end-to-end
- 50% support workload reduction
- Stripe + Twilio Voice + WebSockets
ABR — Auto Body Repair
Built a full IMS for a major US auto franchise. Integrated insurance APIs with async workflows, reducing manual workload by 40%. Engineered an 8-step full-cycle simulator using Context API, SignalR, Redis, and OpenSearch for real-time state management.
- 40% manual workload reduction
- 8-step full-cycle simulator
- SignalR + Redis real-time state
Prestige Men's Health
Developed clinic management and patient portal systems for a US healthcare provider. Implemented HL7/FHIR integrations for healthcare data interoperability and refactored performance-sensitive components, improving load times by 30–40%.
- HL7/FHIR data integration
- 30–40% load time improvement
- Patient portal + IMS
AQS — Alert Quality System
IoT ecosystem for elderly care with real-time fall detection via smart watches. Implemented role-based auth (Admin, Caretaker, Family), a full push notification pipeline, and socket namespaces for devices. Contributed to both caretaker and family React Native apps.
- IoT fall detection pipeline
- Real-time Socket.IO + AWS Pinpoint
- Multi-role React Native apps
NMJ — Not My Job
Service marketplace with OCR document processing, automated recurring job scheduling, and multi-channel notifications. Delivered mobile UX improvements, integrated haptic feedback, built Quartz scheduler workflows, and added Google AI capabilities.
- MLKit + AWS Textract OCR
- Quartz automated scheduling
- RevenueCat in-app subscriptions
BuscaPet
Cross-platform pet rescue app with offline-first geolocation, automated geocoding algorithms, and camera integration. Engineered a containerized Go REST API with AWS S3 image uploads and deployed to AWS EC2 + RDS with Caddy reverse proxy.
- Offline-first geolocation flow
- Containerized Go REST API
- AWS EC2 + RDS production deploy
Kode.systems & Ola Magic Hugs
Instrumented 3D WebGL backgrounds (Three.js, Rive) and Framer Motion animations for corporate websites achieving high SEO/CRO scores. Also contributed to a Supabase-backed SaaS platform managing concurrent digital credential pools via Deno Edge Functions and RLS.
- WebGL + Rive + Three.js animations
- High-impact SEO/CRO optimization
- Supabase Edge Functions + RLS
How I Work
The principles I bring to every team, codebase, and deadline.
End-to-End Ownership
I don't just close tickets. I own features from architecture decisions to production monitoring, treating every codebase as if it were mine.
Speed Without Compromise
5+ years shipping fast without cutting corners. Battle-tested architecture patterns that scale with your product, not against it.
Proactive Communication
No silent debugging sessions. I surface blockers early, document decisions, and keep stakeholders informed — zero surprises.
User-Centered Engineering
Performance, load times, and interaction design are first-class requirements in every sprint — not afterthoughts.
Full-Stack Range
Mobile, backend, frontend, IoT — React Native to .NET to Go. I adapt to what the project needs and deliver across the entire stack.
Continuous Learning
FullCycle 3.0, ML Engineering, UI/UX Design — I invest in expanding my toolkit to bring modern solutions to every challenge.
Let's build something together.
I'm open to full-time roles, contract work, and long-term collaborations. If you need an engineer who ships — let's talk.