Mihail Gabriel Subtirelu

Owner — Senior Full-Stack Developer · Freelance · Remote

This is my legal entity that I use for End-to-end product work for different clients.

• SaaS and integrations across industries; MVP through production.
• Stacks include React, Next.js, Node, NestJS, Go, React Native, AWS, and Docker.
• Automation and third-party integrations — Stripe, analytics, messaging, and LLM-assisted workflows where they fit.

• TypeScript
• React
• Next.js
• Node.js
• Go
• OpenAI
• AWS
• React Native

Co-Founder & Full-Stack Developer · Remote

Co-founded a real-time platform for lawyers and clients — messaging, monetization, and secure document workflows.

• Built chat-based monetization with payments in conversation; secure file sharing with paywall access control.
• Full CMS for lawyers: client and task management, file storage, and messaging.
• Real-time layer with WebSockets; notifications via Firebase; Stripe including Express Connect for provider payouts.
• Backend on Strapi with AWS.

• React
• Next.js
• WebSockets
• Node.js
• Strapi
• AWS
• Firebase
• Stripe

Senior Frontend Engineer · USA

Frontend ownership on a high-traffic product with Rust-backed APIs and React Native mobile surfaces.

• Developed and maintained a high-traffic platform serving thousands of users.
• Scalable, performant React frontends; collaboration with Rust backend teams for API integrations.
• Enhanced React Native mobile apps; improved performance, maintainability, and developer experience.

• React
• Next.js
• Rust
• Node.js
• AWS
• PostgreSQL

Co-Founder & CTO · Bucharest

Healthcare second opinions from volunteer access to premium multi-disciplinary care — full product and infra ownership.

• Co-founded a digital healthcare platform for medical second opinions and patient support.
• Recomedica Free: second-opinion platform connecting patients with volunteer doctors; early COVID-19 home monitoring and guidance in Romania.
• Recomedica PRO: premium multi-disciplinary second opinions, structured patient journeys, multi-layer doctor–patient collaboration, secure records, and async flows.
• Full-stack ownership: Node.js and Strapi APIs, AWS infrastructure, Stripe payments, product lifecycle from idea to production with clinical stakeholders.

• Node.js
• Strapi
• AWS
• React
• TypeScript
• NoSQL
• Docker
• Stripe

Senior Frontend Developer · Bucharest

Enterprise React and Redux systems — clear architecture, performance, and tight coordination with backend teams.

• Led frontend architecture for enterprise applications.
• Scalable UI with React and Redux; performance and modular structure.
• Close collaboration with backend teams.

• React
• Next.js
• Tailwind CSS
• Node.js
• GCP
• Express
• NestJS
• Docker
• PostgreSQL

Senior Frontend Developer · Bucharest

React delivery with emphasis on UI performance, structure, and maintainability.

• React applications with a focus on UI performance and maintainability.
• Contributed to frontend architecture and technical decisions.

• React
• Node.js
• NestJS
• Docker
• PostgreSQL

Senior Frontend / Full-Stack Engineer · Bucharest

IoT and public transit ticketing — hardware-linked validation, POS, vending UIs, and live operator tooling.

• Part of a five-engineer team building IoT and transportation systems; DeviceHub for device management and real-time monitoring.
• Government contract: full public transport monitoring and ticketing for ETA Bus (Râmnicu Vâlcea).
• Ticket validation in buses with hardware-integrated validators; POS for subscriptions with card writers, printers, and ID scanners; ticket vending machine UI (Electron + React) with C++ services for payments and hardware queues.
• Real-time dashboards for operations; work across frontend, backend, and hardware integration.

• React
• Electron
• Node.js
• Python
• C++
• MySQL
• Docker