Full Stack Developer jobs in United Kingdom

Gelt is the first US-focused end-to-end tax platform that proactively analyzes and structures your finances so you owe less at tax time. With expert tax strategies and always-on monitoring, Gelt’s technology works year-round to provide tax-optimized recommendations for all your financial decisions. Gelt’s best-in‑class tax analysis can save thousands compared to returns filed by traditional CPAs—all in a seamless, easy-to-use platform that empowers you to make the right decisions for your financial goals. With Gelt, you can stop preparing for April 15th and start planning for your future.

• Design, develop, and deploy tax automation and optimization services.
• Be a critical part of our R&D team.
• Implement and ensure the correctness of our advanced tax models.
• Collaborate with UI/UX designers and other stakeholders to produce and deliver a premium product.
• Own features end-to‑end, thinking through everything from user experience, data models, scalability, operability, and ongoing metrics.
• From time to time, lead feature projects by liaising with stakeholders, devising solutions, breaking down solutions into tasks, and working with a team through to delivery.
• Drive technical excellence, high product quality, innovation, and timely delivery in an agile, production‑critical environment.
• Mentor junior team members to support and develop their skills.

• Frontend: Vue 3 / TypeScript
• Cloud: AWS
• Utilities: Rush (monorepo) / GitHub
• Tasks & knowledge base: Notion / Linear
• Communication: Slack / Zoom / Around

• 5+ years of experience in hands‑on development of production systems.
• Production‑level experience with front‑end frameworks such as Vue, React, or Angular.
• Familiarity with data engineering, relational, and NoSQL databases.
• The ability to reason and communicate your opinions while being a team player and open to others’ approaches.
• Strong understanding of usability and user experience principles.
• Clean coding skills with readable, simple, and maintainable code; you recognize bad code and search for better solutions.
• The ability to grasp large and complex systems and their inner workings.
• Experience in software engineering best practices (testing, code reviews, immutability, etc.).
• Full professional English proficiency (spoken and written).

• Passionate about what they do.
• Fast and creative thinkers and doers.
• Friendly and approachable (good sense of humor is a must).
• Clear communicators at technical and non-technical levels.

Email your CV and a short cover letter indicating your passion for the positiontocareers@joingelt.com