AI vision into execution.
Romanian.
Hiring.
Senior Full-Stack Engineer
TypeScript · Node.js/NestJS · Next.js · React/React Native
About the role
We’re looking for a product-minded full-stack engineer fluent in TypeScript to design and operate services in Node.js (NestJS), shape data models and integrations, and ensure reliability and performance. You’ll also contribute to user-facing features in React/Next.js and React Native to ship end-to-end functionality with high quality.
What you’ll do
- Design and implement scalable NestJS services (REST/gRPC), data models, and third-party integrations
- Model and optimize databases (SQL/NoSQL), queries, caching (Redis), and background jobs
- Drive reliability & observability: testing, metrics, tracing, logging, CI/CD
- Own features end-to-end: plan, estimate, implement, test, document, and monitor
- Collaborate with Product & Design to scope MVPs, iterate quickly, and measure impact
- Ship interfaces across web and mobile: responsive UIs in React/Next.js and native experiences in React Native
You’ll thrive here if you have
- 3–6 years building production backends with TypeScript and Node.js/NestJS (auth, testing, observability, scalable APIs)
- Database fluency (SQL/NoSQL) and ORMs (e.g., MikroORM, TypeORM or similar), plus cloud basics (AWS/GCP)
- Strong front-end skills with React and Next.js (SSR/SSG, routing, data fetching)
- Mobile experience with React Native (navigation, native modules, app store delivery)
- Solid testing habits and CI/CD workflows; you value readable, maintainable code
Nice to have
- Event-driven architecture and WebSockets/real-time communications
- Production hardening: logging, metrics, tracing, OpenTelemetry, on-call
- UI systems (design tokens, Storybook) and performance profiling
Our stack
- Backend: Node.js, NestJS, REST/gRPC
- Data: Postgres/MySQL, Redis; ORM (MikroORM/TypeORM)
- Infra: Docker, CI/CD, AWS/GCP; monitoring with modern APM/logging tools
- Frontend: React, Next.js, React Native, TypeScript
How we work
- Small, cross-functional squads with weekly planning and async docs
- Pragmatic testing, code reviews, and continuous delivery
- Autonomy with accountability - ship, measure, iterate
Benefits
- Possibility of additional benefits aligned with long-term company success
- Work with passionate people advancing sustainable, inclusive, livable cities
- Direct impact: your features improve daily commutes and help city planners decide better
- Culture of autonomy, feedback, and ownership - your ideas shape the roadmap
- Be part of the change: help drive the digital transformation of urban transport
- Personal learning budget and tickets to top mobility, urbanism, and open-data events
Apply now
If you feel this opportunity fits you, fill in the form below or send us your CV directly at jobs@tranzy.ai
Tranzy.ai provides an Open Digital Passenger Information Platform that enables passengers, cities, operators, and the business and academic communities to access reliable, real-time mobility data. Designed for openness and scalability, the platform fosters collaboration across transport systems while improving the travel experience.
Tranzy.ai is a Romanian smart mobility startup that connects all stakeholders to transform mobility data into action.
Our vision is to unify mobility systems and leverage the power of big data and AI to transform how cities move and evolve.
