> Markdown version of [/jobs/ext/3906630-senior-backend-engineer-ai-fintech-remote-eu-equity](https://www.wearedevelopers.com/jobs/ext/3906630-senior-backend-engineer-ai-fintech-remote-eu-equity). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - AI Fintech, Remote EU, Equity - **Company:** Oliver Bernard Ltd. - **Location:** Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Continuous Integration, Django Web Framework, Python (Programming Language), PostgreSQL, SQL Databases, Flask (Web Framework), Backend, Fastapi - **Published:** October 25, 2026 - **Apply:** https://www.jobleads.com/es/job/senior-backend-engineer-ai-fintech-remote-eu-equity--spain--e4122a9045c52fe00559eff9ce3646909 ## About the Role Must have 5+ years in backend, strong PostgreSQL/SQL/ORM skills, AWS deployment, and a fast-paced, high-agency work culture. Python plus FastAPI/Flask/Django is a bonus. ## Description Oliver Bernard is seeking a backend engineer for an AI-native fintech scale-up. You will design and ship end-to-end backend systems and APIs that run real-time accounting logic, owning architecture and CI/CD, testing and monitoring. This role is fully remote within the EU and offers significant equity. Must have 5+ years in backend, strong PostgreSQL/SQL/ORM skills, AWS deployment, and a fast-paced, high-agency work culture. Python plus FastAPI/Flask/Django is a bonus.