Senior Full-Stack Engineer United Kingdom Product and R&D

Joingelt; United Kingdom; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading financial technology company in the United Kingdom is seeking a skilled developer to design and deploy tax automation services. Candidates should have over 5 years of frontend development experience, particularly with frameworks like Vue. This role requires collaboration with UI/UX designers, ownership of features end-to-end, and a commitment to technical excellence. The ideal candidate will exhibit clean coding skills, strong communication abilities, and a professional proficiency in English. Join us to help optimize financial technology solutions.

Qualifications

• 5+ years of experience in hands-on development of production systems.
• Production-level experience with frontend frameworks.
• Full professional English proficiency.

Responsibilities

• Design, develop, and deploy tax automation and optimization services.
• Own features end-to-end, focusing on user experience.
• Drive technical excellence in an agile environment.

Skills

Software development

Frontend frameworks (Vue, React, Angular)

Data engineering

User experience principles

Clean coding

Communication skills

Team collaboration

Tools

Vue 3

AWS

GitHub

Notion

Slack

Job description

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.

You will

• 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.

Our stack

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

We are looking for someone who has

• 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).

We appreciate people who are

• 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 [e-mail]