Senior Python Back-End Developer
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About Us:
GBT Solutions is a Portuguese technology company founded in 2018, part of the HFA Group established in 1995. With a focus on delivering cutting-edge solutions across various industries, we are committed to fostering a diverse and inclusive work environment and are proud to be recognized for our commitment to excellence and innovation.
Position: Senior Python Back-End Developer
Location: Remote | EuropeMay–Oct 2026 | ~80 working days
We are looking for a Senior Python Back-End Developer to support the CMRE Data Management Programme. The role focuses on building scalable backend systems and APIs for core data capabilities, working in an Agile team and collaborating closely with a Software Architect.
Responsibilities:
- Develop and maintain backend services and APIs in Python
- Implement scalable, secure, production-grade solutions
- Build data catalogues, models, and workflows
- Ensure performance, reliability, and security
- Own features end-to-end and contribute to architecture
- Write tests (unit, integration, TDD) and perform code reviews
- Support CI/CD pipelines and documentation
- Collaborate with DevOps, QA, frontend, and architects
Mandatory Requirements:
- 7+ years of backend development experience
- Advanced Python (async, type hints, packaging)
- FastAPI and async best practices
- Strong OOP, design patterns, REST API designSQL (PostgreSQL/SQL Server) + NoSQL (MongoDB/Redis/Elasticsearch)SQLAlchemy or Django ORMDocker, basic Kubernetes, Linux
- Testing (pytest, TDD), CI/CD (GitHub/GitLab/Azure DevOps)
- Secure coding, OAuth2/JWT, API security
- Microservices, distributed systems, Agile experience
- Strong communication in English
Nice to Have:
- Metadata standards (Dublin Core, ISO 19115, STANAG 2586)
- Semantic Web (RDF, DCAT, Jena)
- Azure (Entra ID, DevOps, Key Vault)
- Observability (Prometheus, Grafana, OpenTelemetry)LLM frameworks (LangChain, LlamaIndex), RAG pipelines
Equal Opportunity: GBT Solutions is an equal opportunity employer and values diversity. We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any other factor other than merit.