Fullstack Engineer

Key Responsibilities

• Develop and maintain scalable web applications across frontend and backend.
• Build backend services and REST APIs using Node.js and TypeScript/JavaScript.
• Develop responsive and user-friendly interfaces using React.
• Design and work with PostgreSQL databases, including queries, relationships, indexes, and performance optimization.
• Integrate frontend applications with backend APIs and third-party services.
• Develop and maintain integrations with external systems and APIs.
• Debug and resolve issues across the frontend, backend, and database layers.
• Write clean, reusable, maintainable, and well-tested code.
• Participate in code reviews and contribute to technical and architectural decisions.
• Work closely with product, QA, and other engineering teams to deliver features end-to-end.
• Support production deployments, troubleshooting, and system improvements.

Required Skills & Experience

• 46 years of professional software development experience.
• Strong experience with Node.js and TypeScript/JavaScript.
• Strong experience with React and modern frontend development.
• Good knowledge of PostgreSQL and SQL.
• Experience designing and consuming REST APIs.
• Understanding of authentication, authorization, security, and API integrations.
• Good understanding of Git, testing, debugging, and software development practices.
• Ability to work across both frontend and backend systems.

Preferred Skills

• Experience with Java / Spring Boot.
• Experience with e-invoicing or tax-compliance platforms.
• Knowledge of Peppol and e-invoicing standards.
• Experience with PINT, UBL, BIS Billing, AS4, SMP/SML, or related technologies.
• Experience developing or integrating SDKs.
• Experience with Redis, queues, background jobs, or event-driven systems.
• Experience with Docker, CI/CD, and cloud platforms.
• Experience working with accounting, invoicing, ERP, or fintech systems.