Fullstack Software Engineer (React/Next.js, XML, Domibus AS4) (m/f/n)
Role details
Job location
Tech stack
Job description
We are currently looking for an experienced Fullstack Software Engineer to join a long-term project for a European Union institution. You will be involved in the development, integration, and maintenance of modern full-stack applications within an international environment, supporting digital public services and cross-border cooperation initiatives across Europe., * Develop and maintain frontend and backend application components.
- Build modern web interfaces and integrate them with backend services and APIs.
- Write clean, maintainable, and well-tested code.
- Perform troubleshooting, debugging, and resolution of technical issues.
- Conduct unit and integration testing.
- Create and maintain technical documentation.
- Deliver solutions that meet both functional and non-functional requirements.
- Support application deployments and releases using CI/CD practices.
- Participate in the maintenance and continuous improvement of existing solutions.
- Collaborate with stakeholders, technical leads, and development teams in an Agile environment.
Requirements
Education: University degree at Master's level, Master's degree (MSc, MA, MEng or equivalent).
Professional Experience: Minimum 5 years of professional software development experience.
Frontend Technologies:
- TanStack React Query - minimum 4 years.
- React and Next.js - minimum 6 years.
- Tailwind CSS - minimum 6 years.
Backend Technologies:
- Fastify - minimum 6 years.
- Experience with Axios, Pino, and Vitest - minimum 6 years.
- Experience integrating with AS4 messaging solutions (e.g. Domibus AS4 Backend API or equivalent) - minimum 2 years.
Development Tools & Technologies:
- GitLab for source code management and CI/CD - minimum 3 years.
- pnpm, Nx, and Biome - minimum 5 years.
- Experience with XML, XSLT, xml-js, xml-crypto, xmllint-wasm, and Saxon-JS - minimum 2 years.
Additional Expertise:
- Minimum 1 year of experience working with information systems implementing the Once-Only Principle, preferably within public administration or public-sector environments.
- Language: English - minimum B2 level (CEFR).
Nice to Have:
- Experience working in Agile development environments.
- Familiarity with Agile ceremonies, including sprint planning, reviews, retrospectives, and daily stand-ups.
- EU citizenship is mandatory.
- Candidates must perform their work from the territory of a European Union Member State.
Benefits & conditions
- Rate: 380-450/MD nett
- Primarily remote work from within the European Union.
- Mostly remote setup. Services must be performed from within the EU. One/Two physical meetings with the customer are foreseen per 12-month period, max 2 days each. These planned meetings are at contractor's cost.
- International and multicultural working environment.
- Collaboration with highly skilled professionals from across Europe.
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