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Full-Stack Engineer (TypeScript & LLM Integration) - £80K, Remote UK

JR United Kingdom

Bournemouth

Remote

GBP 40,000 - 60,000

Full time

Yesterday
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Job summary

An exciting AI start-up is seeking Full-Stack Engineers to join their product team in Bournemouth. You'll work with a unified codebase and focus on building software powered by AI technologies. This role offers the chance to enhance user experiences through advanced LLM integration, making it a unique opportunity in the tech industry.

Qualifications

  • Proven experience in a unified codebase combining app logic and AI components.
  • Strong proficiency with Next.js, tRPC, TypeScript.
  • Practical experience integrating AI models like ChatGPT or Gemini.

Responsibilities

  • Build and maintain web application features using TypeScript, React, Node + Next.js.
  • Integrate and optimize LLMs via prompt engineering.
  • Design and optimize the MySQL database.

Skills

Web application development
AI integration
TypeScript
Next.js
Prompt engineering

Tools

MySQL
tRPC
Node.js
React
LangChain
Prisma

Job description

Social network you want to login/join with:

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Client:

Oliver Bernard

Location:

bournemouth, United Kingdom

Job Category:

Other

-

EU work permit required:

Yes

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Job Views:

3

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

A hugely exciting AI start-up is seeking several experienced Full-Stack Engineers to join a dynamic product team, focused on building innovative software powered by cutting-edge AI technologies.

This is a unique opportunity for a passionate developer to contribute to an ambitious product and work at the forefront of AI integration.

About the Role

The successful candidate will work within a unified codebase that powers both the B2B software platform and its custom AI capabilities. Responsibilities will span the full feature lifecycle, from design (including data structures) to AI integration, enhancing user experiences through advanced Large Language Models.

Key Responsibilities

  • Build and maintain web application features using TypeScript, React, Node + Next.js
  • Contribute to and maintain a monorepo that includes both the B2B SaaS platform and AI/LLM modules
  • Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management
  • Implement multi-step LLM workflows using orchestration frameworks such as LangChain.
  • Design and optimize the MySQL database
  • Develop and maintain type-safe RPC endpoints using tRPC and TypeScript to ensure smooth frontend-backend communication
  • Rapidly onboard to a modern TypeScript stack to support high-velocity feature development

Required Qualifications

  • Proven experience working in a unified codebase combining application logic and AI/LLM components
  • Strong proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma
  • Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management
  • Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows
  • A demonstrated ability to learn quickly and deliver functional features in a fast-paced environment

Preferred Qualifications

  • Experience deploying and fine-tuning custom AI models
  • Prior experience developing B2B software platforms with multi-user functionality
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