Senior Full Stack Engineer - TypeScript, LLMs

JR United Kingdom; Stevenage; Remote; GBP 50,000 - 80,000; Full time

Job summary

A growing AI start-up in the UK is seeking talented Senior Full Stack Engineers to contribute to both B2B platforms and custom AI integrations. You'll work with the latest technologies, shaping products and enhancing user experiences. Ideal candidates will have experience in TypeScript and AI model integration, making this an exciting opportunity in the innovative field of B2B software solutions.

Qualifications

• Experienced with Next.js, tRPC, TypeScript.
• Hands-on experience with AI models like ChatGPT.
• Fast learner and adaptable to high-paced environments.

Responsibilities

• Develop and maintain web applications using TypeScript and React.
• Integrate Large Language Models (LLMs) through prompt engineering.
• Optimise MySQL databases for performance and scalability.

Skills

TypeScript

Database skills (MySQL)

Integrating AI models

Adaptability

Tools

Next.js

tRPC

Prisma

Job description

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Client:

Oliver Bernard

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Job Category:

Other

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EU work permit required:

Yes

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Job Views:

4

Posted:

31.05.2025

Expiry Date:

15.07.2025

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Job Description:

Senior Full Stack Engineer - TypeScript, LLMs

Fully Remote - UK based

Oliver Bernard have partnered with a growing AI start-up who have recently secured another round of funding, and are now looking for talented Senior Full Stack Engineers to shape the product and company from the ground up.

We are looking for a Mid Level Engineer to join our client's dynamic product team. This is an incredible opportunity to work with cutting-edge AI technologies and drive innovation in B2B software solutions.

Role Overview:

As a Senior Full-Stack Engineer, you will contribute to a unified codebase powering both B2B platforms and custom AI integrations. You'll be involved in the full feature lifecycle, from design and development to optimising AI-driven user experiences.

Key Responsibilities:

• Develop and maintain web applications using TypeScript, React, Node and Next.js.
• Contribute to a monorepo encompassing B2B SaaS and AI modules.
• Integrate Large Language Models (LLMs) like OpenAI and Gemini through prompt engineering.
• Optimise MySQL databases for performance and scalability.
• Build type-safe RPC endpoints with tRPC and TypeScript.

Requirements:

• Experience with Next.js, tRPC, TypeScript, Prisma.
• Strong database skills ideally with MySQL.
• Hands-on experience integrating AI models (e.g., ChatGPT, Gemini).
• Familiarity with LangChain or similar orchestration tools.
• Fast learner, adaptable in high-paced environments.

Preferred Skills:

• Experience deploying and fine-tuning custom AI models.
• Background in B2B software platforms with multi-user environments.