4 of 4 Svelte Jobs in the City of London

Frontend Developer – £650/day – 6 months – Inside IR35 – 3 days onsite (London) React or Svelte – Commodities Trading – AWS – TypeScript You'll be working for a leading energy trading business, building out a modern post-trade platform that's genuinely pushing boundaries – live PnL, intraday position reporting, and digitised front office workflows. This is a business that backs its tech … delivers fast, and builds for the long-term. The must-haves: Strong React or Svelte experience (this needs to be hands-on and recent) TypeScript Built modern UIs as part of a product team Comfortable working in fast-moving agile squads Experience in commodities or trading (preferred but not essential) Experience in Python or AWS Services - if you have both More ❯

trading space – think live intraday PnL, position management, and digitised workflows for one of the most dynamic trading businesses in Europe. It’s a hybrid environment with React or Svelte at the core and AWS powering the infrastructure. You'll work alongside high-calibre devs and tech leads pushing scalable, secure, real-time trading systems. What you’ll be doing … Building UI features for a real-time energy trading platform Developing clean, scalable code in React or Svelte (daily hands-on coding) Collaborating across dev, cloud, infra and trading desks to shape architecture Contributing to the CI/CD pipeline and DevOps best practices Delivering secure, high-performing apps that support front office workflows Influencing technical design and tooling strategy … What you’ll need: 7+ years hands-on front-end experience (React or Svelte essential) Recent experience in commodities or financial services trading (essential) Strong exposure to AWS (S3, ECS, AppSync preferred) Familiarity with REST/GraphQL, Kafka, PostgreSQL or similar Comfortable working in Agile squads with a DevOps-first mindset Bonus if you can work in Python, but not More ❯

haves (in order of priority – at least one or two is needed): AWS services – S3, ECS, AppSync PostgreSQL or NoSQL database experience GraphQL or REST APIs TypeScript React or Svelte (not essential, but helpful for collaboration) To apply – click the link or for a faster response, email Barry.Ansell@HarringtonStarr.com More ❯

in React and Go to join this fast-growing team. You’ll be instrumental in building scalable API services (AWS) and crafting a clean, intuitive SaaS UX (React/Svelte). Reporting directly to the CTO, you’ll be part of a small, collaborative engineering team with real influence over the architecture, tools, and roadmap. Responsibilities: Design and build the … code quality, performance, and security. Requirements: 1+ years of commercial software experience, including: At least 1 year building Go APIs At least 1 year with React or similar frameworks (Svelte a plus) Comfortable with modern CI/CD (e.g., GitHub Actions). Self-starter mindset with strong problem-solving skills and a “build-first” attitude. Bonus: Experience in fintech , AWS More ❯