Full Stack Software Engineer

ESYEN is seeking a Full Stack Software Engineer to join the Software Engineering / R&D team, building modern web applications, SaaS platforms, and AI-enabled products. You will work across frontend and backend, databases, APIs, AI integrations, and deployment, collaborating with AI, Infrastructure, and R&D teams.

The role offers a full-time contract with health coverage, development opportunities, and flexible hours. Salary range is €30,000–€37,000 depending on experience.

Develop backend services using Node.js, TypeScript and NestJS.
Design and implement REST APIs.
Design and manage PostgreSQL databases.
Implement authentication, authorisation, and role management.
Develop background processes and asynchronous services.
Develop modern web applications using React and TypeScript.
Build responsive and component-based interfaces.
Implement state management and API integrations.
Develop real-time functionality using WebSocket.
Integrate LLM APIs and AI services.
Support RAG, embeddings, vector database, and agentic workflows.
Integrate external services and APIs.
Contribute to AI-enabled application features.

A degree in Computer Science, Computer Engineering, or a related field is considered an advantage.
Professional experience in Full Stack Software Engineering, with the ability to develop application components end-to-end, is preferred.

Health coverage
Professional development opportunities
Team-building activities
Welfare benefits
Flexible working hours