Stefan Tudor

I’m a Senior Full Stack Engineer with 10+ years building highly available web applications and cloud-native solutions. I specialize in React, Node.js, and Python, with expertise in microservices and event-driven architectures for high-performance, resilient systems.

At Zitec (Oct 2022 – May 2026), I architected and delivered scalable SaaS platforms using React, Next.js, and TypeScript, and built backend services with Java (Spring Boot), Node.js (NestJS, Express), and Python (FastAPI). I designed and deployed cloud-native infrastructure on AWS, including ECS, Lambda, RDS, S3, API Gateway, and EKS, helping ensure high availability and scalability. I also implemented microservices and event-driven architecture with Redis, RabbitMQ, Kafka, and SQS to support zero-downtime workflows, and integrated third-party services and OpenAI APIs for automation and intelligent data processing.

Previously at FTAPI (Nov 2020 – Sep 2022) and Tremend (Aug 2016 – Oct 2020), I developed enterprise-grade frontends with React, Redux, and TypeScript (and earlier JavaScript/ES6+), and built backend systems with Node.js and Python (Django, Flask). I migrated legacy systems into modern microservices architecture, improved maintainability and deployment flexibility, and optimized databases across PostgreSQL and MySQL. I implemented secure authentication and authorization with JWT, OAuth, and Auth0, and strengthened reliability through automated testing using Jest, PyTest, and Cypress.

I enjoy turning complex requirements into production-grade systems while partnering closely with designers and stakeholders (Figma) and mentoring junior developers. My focus is clear ownership of project outcomes, resilient infrastructure, and continuous improvement in engineering practices—so teams can ship faster without sacrificing reliability.