Full-Stack Developer - Python, APIs & React

• Develop, maintain, and improve web applications and digital services.
• Design and develop backend services and REST APIs.
• Build integrations with external platforms, data sources, and third-party services.
• Maintain and extend existing frontend applications.
• Develop data-processing, validation, and ingestion workflows.
• Work with structured data, metadata schemas, and external identifiers.
• Support integration between platforms while reducing unnecessary duplication of data and functionality.
• Maintain and improve existing application architecture, supporting gradual modernisation where appropriate.
• Deploy and operate containerised applications across development, staging, and production environments.
• Support application monitoring, logging, backup, and recovery processes.
• Implement secure authentication, authorisation, and data-handling practices.
• Investigate and resolve application, integration, database, and deployment issues.
• Contribute to technical documentation, architecture decisions, and development standards.
• Collaborate with internal stakeholders, external developers, service providers, and technical partners.
• Support technical planning and estimation for new features and project commitments.
• Help ensure that newly developed software remains maintainable, documented, and supportable over the long term., * Is comfortable moving between software development, systems integration, and operational troubleshooting.
• Can work effectively with systems developed by different organisations and technical teams.
• Makes pragmatic architectural decisions and avoids unnecessary complexity.
• Is comfortable working with existing codebases and improving them incrementally.
• Communicates clearly with both technical and non-technical stakeholders.
• Can work independently while collaborating effectively with external partners.
• Values maintainability, documentation, security, and operational reliability alongside delivery of new functionality.
• Is comfortable working in an international, distributed, and project-oriented environment.

• Approximately 3+ years of relevant professional software-development experience, or equivalent practical experience.
• Strong professional experience with Python and backend application development.
• Experience designing and implementing REST APIs and integrations with third-party services.
• Experience with relational databases, preferably PostgreSQL.
• Good knowledge of modern frontend development, preferably React and TypeScript.
• Experience working with Docker and containerised applications.
• Comfortable working in Linux-based server environments.
• Strong working knowledge of Git, GitHub, and collaborative development workflows.
• Experience working with structured data such as JSON, data models, and schemas.
• Understanding of authentication and authorisation concepts such as OAuth 2.0.
• Ability to troubleshoot issues across frontend, backend, database, integration, and infrastructure layers.
• Experience maintaining and taking ownership of existing production software, not only developing greenfield applications.
• Professional working proficiency in English.

Desirable Experience - Experience with some of the following would be valuable, but is not required:

• FastAPI or Django.
• Elasticsearch or other search technologies.
• CI/CD pipelines and automated deployment.
• NGINX, Traefik, or similar reverse-proxy technologies.
• Cloudflare or comparable infrastructure services.
• Background jobs, asynchronous processing, and data-ingestion pipelines.
• API-based data harvesting, transformation, and validation.
• Metadata standards, linked data, or JSON-LD.
• Persistent identifier systems.
• Data interoperability or research-data environments.
• AI/LLM API integrations.
• Integration with CMS, learning-management, or other third-party platforms.
• Experience in scientific, research, public-sector, or other data-intensive environments., * We would generally expect 3+ years of relevant professional software-development experience, although strong candidates with equivalent experience are encouraged to apply.
• Experience taking technical responsibility for production applications, integrations, or digital platforms will be considered particularly valuable.

Technology Environment

• Python, FastAPI, Django, React, TypeScript, PostgreSQL, Docker, REST APIs, Elasticsearch, Linux, GitHub, and NGINX/Traefik.
• The technology landscape may evolve over time, so the ability to understand and work across different systems is more important than prior experience with every individual technology listed., * This is a half-time/part-time position for an experienced developer who can work independently, take technical ownership, and collaborate effectively with internal and external partners.
• If this opportunity is relevant to you, please reach out directly at info@devnation.be with a short introduction, your availability, and relevant experience.