FULL STACK SOFTWARE ENGINEER

Are you a Full Stack Software Engineer looking for an opportunity to build modern web applications, SaaS platforms, and software products integrated with Artificial Intelligence? Would you like to contribute to the development of applications across the entire software stack, from frontend and backend to databases, APIs, AI integrations, and deployment? We are looking for a Full Stack Software Engineer to join our Software Engineering / R&D team, contributing to the development of modern, reliable, and scalable software applications. You will work across the full development lifecycle, collaborating with AI Engineers, Infrastructure Engineers, and other Software Engineers.

ABOUT US
ESYEN is an engineering company offering services to the Space Industry, working with major international Customers and Agencies such as EUSPA and ESA. Since 2012, we have played an active role in major European Space Programmes, including Earth Observation, Navigation and Secure Satcom. Our team has a solid track record in providing Ground Segment services across major European Space Programmes. ESYEN operates in Italy, Germany, France and Spain, with a strong commitment to innovation and quality of service. WORK LOCATION 📍 Avezzano (AQ) WHAT WE LOOK FOR ✅ Education & Experience 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. ✅ Technical Skills
• Strong experience with Node.js, TypeScript and NestJS
• Experience designing and developing REST APIs
• Good knowledge of PostgreSQL, SQL and ORM technologies
• Experience with React and TypeScript
• Knowledge of HTML5, CSS3, responsive and component-based development
• Experience with WebSocket and real-time applications
• Knowledge of authentication technologies such as OAuth2, OpenID Connect and JWT
• Experience with Docker, Git and CI/CD
• Familiarity with logging, monitoring, and application deployment
• Experience integrating external APIs and services Experience with AI/LLM APIs, RAG, vector databases, embeddings, agentic workflows, or MCP is considered a strong advantage. ✅ Soft Skills
• Strong software engineering and problem-solving approach
• Technical autonomy
• Ability to work across the full application stack
• Good understanding of software architecture
• Strong attention to code quality
• Good communication and teamwork skills
• Ability to collaborate with AI, Infrastructure, and R&D teams WHAT YOU WILL DO As a Full Stack Software Engineer, you will contribute to the design and development of web applications, SaaS platforms, and AI-enabled software products. 🔹 Backend Development
• 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 🔹 Frontend Development
• 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 🔹 AI & System Integration
• 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 🔹 Software Engineering & Deployment
• Design modular and scalable application architectures
• Implement testing, debugging, and code review activities
• Containerise applications using Docker
• Support CI/CD and application deployment
• Analyse and improve application performance, security, and reliability BENEFITS The successful candidate will be offered a full-time contract, with a competitive salary package reflecting skills and experience and aligned with the company’s salary scale. Additional benefits include: ✔ Health coverage as outlined by the applicable national contract ✔ Access to professional development and training opportunities ✔ Team-building and extracurricular activities ✔ Enhanced annual welfare benefits ✔ Flexible

working hours
, where compatible with project requirements ✔ Opportunities for professional growth Salary range: € 30.000
- € 37.000, depending on relevant experience and qualifications