Contract Full-Stack JavaScript Developer - AI Platform
Reference: MC-753
🚀 Contract Full-Stack JavaScript Developer (AI Platform)
📍 Location: 3 days per week in London Office
📆 Duration: 4 weeks with a longer term extension afterwards.
đź’ĽÂ IR35 Status:Â Outside IR35
💰 Rate: £500p/d – £600p/d
Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer.
You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of frontend engineering, backend systems, and applied LLM tooling.
This is a true 0–1 build, ideal if you enjoy ownership, clean abstractions, and shipping product quickly.
🧠What You’ll Be Working On
🛠️ Tech Stack
đź“©Â Interested?
Apply now or send your latest CV to matthew.carter@opusrs.com ASAP!
If you haven’t heard back within 48 hours, please assume your application was not successful this time.
📍 Location: 3 days per week in London Office
📆 Duration: 4 weeks with a longer term extension afterwards.
đź’ĽÂ IR35 Status:Â Outside IR35
💰 Rate: £500p/d – £600p/d
Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer.
You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of frontend engineering, backend systems, and applied LLM tooling.
This is a true 0–1 build, ideal if you enjoy ownership, clean abstractions, and shipping product quickly.
🧠What You’ll Be Working On
- Building and extending agent-driven workflows.
- Developing context management and LLM entry points. Only application-layer LLM integrations, not model training)
- Expanding slide generation functions and data structures.
- Full-stack feature development, with a frontend-heavy bias
- Collaborating closely with product and engineering stakeholders in a fast-moving environment
🛠️ Tech Stack
- Next.js
- TypeScript
- Tailwind CSS
- Node.js
- PostgreSQL
- Claude Agent SDK
- Pydantic
- AWS
- Terraform
- Modal Sandboxes
đź“©Â Interested?
Apply now or send your latest CV to matthew.carter@opusrs.com ASAP!
If you haven’t heard back within 48 hours, please assume your application was not successful this time.
Contract Full-Stack JavaScript Developer - AI Platform
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