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  • Software Engineer, Full-Stack
    interview badgeInterviews tomorrow
    Software Engineer, Full-Stack
    4 hours ago
    £20–£25 hourly
    Full-time
    Watford

    Location: Remote (UK-based), with in-person meetups in the West Midlands every 2-4 weeks Employment Type: Fixed-Term Contract, PAYE (6 months, potential for extension) About the Role We're a startup looking for a Full-Stack Software Engineer to join our engineering team on a contract basis and help design, build, and scale our product. You'll work across the stack, from React interfaces to Python backends, with real ownership over what you build. This is a great fit for someone comfortable with the pace of a startup, who cares about clean, well-tested code, and is excited about integrating LLMs into real-world products. You'll be working remotely with in-person meetups in the West Midlands every 2-4 weeks. What You'll Do • Build full-stack features using React on the frontend and Python (FastAPI) on the backend, • Design and maintain containerized services using Docker within a microservices architecture, • Work with PostgreSQL and Neo4j for data storage and modeling, • Integrate LLMs into our products, including prompt design, tool calling, and agentic workflows, • Write and maintain automated tests as a core part of the development process, • Collaborate with the team to ship features end-to-end and take part in code reviews Must-Have Qualifications • Proven full-stack experience with React and Python, ideally with FastAPI, • Experience with Docker and microservices architecture, • Working knowledge of PostgreSQL; familiarity with Neo4j or graph databases a plus, • Experience working with LLMs (prompt engineering, API integration, or LLM-powered features), • Strong track record of writing automated tests and building testable code, • Comfortable working independently in a remote, fast-paced startup environment, • Must be eligible to work in the UK; we are unable to provide visa sponsorship Nice to Have • Experience with AWS and Terraform, • Mobile app development experience (React Native, iOS, or Android), • Experience with FastMCP or LangGraph What We Offer • Fully remote working, with regular in-person meetups in the West Midlands, • Direct collaboration with the Senior Technical Lead and early involvement in key technical decisions, • Potential for contract extension based on business needs and performance X-Seed Technology is an equal opportunity employer.

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