Senior Full-Stack Engineer (TypeScript & LLM Integration) - £110K, Remote UK

Whatsoninleeds; Leeds; Remote; GBP 110,000; Full time

Job summary

A leading AI start-up is seeking experienced Full-Stack Engineers to join their dynamic product team. You will work on building innovative software powered by cutting-edge AI technologies, contributing to both B2B platforms and custom AI capabilities. This role offers a unique opportunity to enhance user experiences through advanced AI integration.

Qualifications

• Proven experience in a unified codebase with AI components.
• Strong proficiency in Next.js and TypeScript.
• Experience with AI models like ChatGPT or Gemini.

Responsibilities

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

Skills

TypeScript

React

Node

Next.js

AI integration

Prompt engineering

MySQL

Tools

LangChain

tRPC

Prisma

Job description

Enter Job title or skill to search relevant jobs

Enter your city or postcode to show jobs in your location

Leeds, Yorkshire and the Humber, United Kingdom

This advertiser has chosen not to accept applicants from your region.

Full Job Description

A hugely excitingAI start-up is seeking several experienced Full-Stack Engineers tojoin a dynamic product team, focused on building innovative softwarepowered by cutting-edge AI technologies.

This is aunique opportunity for a passionate developer to contribute to anambitious product and work at the forefront of AI integration.

About the Role

The successfulcandidate will work within a unified codebase that powers both the B2Bsoftware platform and its custom AI capabilities. Responsibilitieswill span the full feature lifecycle, from design (including datastructures) to AI integration, enhancing user experiences throughadvanced Large Language Models.

KeyResponsibilities

• Build and maintain web applicationfeatures using TypeScript, React, Node + Next.js
• Contributeto and maintain a monorepo that includes both the B2B SaaS platformand AI/LLM modules
• Integrate and optimize commerciallyavailable LLMs (e.g., OpenAI, Gemini) via prompt engineering andinference pipeline management
• Implement multi-step LLMworkflows using orchestration frameworks such as LangChain.
• Design and optimize the MySQL database
• Develop andmaintain type-safe RPC endpoints using tRPC and TypeScript to ensuresmooth frontend-backend communication
• Rapidly onboard to amodern TypeScript stack to support high-velocity feature development

Required Qualifications

• Proven experience working in a unified codebase combiningapplication logic and AI/LLM components
• Strong proficiency inbuilding modern web applications with Next.js, tRPC, TypeScript, andPrisma
• Practical experience integrating with AI models suchas ChatGPT or Gemini, including prompt engineering and API management
• Familiarity with tools like LangChain (or similar) toimplement multi-step AI workflows
• A demonstrated ability tolearn quickly and deliver functional features in a fast-pacedenvironment

Preferred Qualifications

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

Oliver Bernard

It's offensive or harassing

Asking for money or seems like a fake job

Incorrect company, location or job details

I think it's NOT a Job, but selling something

This job does not match my search criteria

The job has expired

Unable to apply for this job

Job posting appears incomplete or broken

Other

Your Email *

Describe your problem below: * 0 / 30 to 300 words. 0 / 300

All Direct Job Ads are subject to WhatJobs Terms of Service . We allow users to flag postings that may be in violation of those terms. Job Ads may also be flagged by WhatJobs. However, no moderation system is perfect, and flagging a posting does not ensure that it will be removed.

Report to WhatJobs

WhatJobs: 0 Senior Full Stack Engineer (TypeScript & LLM Integration) £110K, Remote UK jobs in Leeds View Jobs