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

Whatsoninleeds; Leeds; Remote; GBP 80,000 - 110,000; Full time

Job summary

A dynamic AI start-up in Leeds is seeking a Senior Full-Stack Engineer to join their innovative product team. This role involves building cutting-edge applications with TypeScript and integrating advanced AI technologies. The successful candidate will work on a unified codebase, contributing to both B2B software and AI capabilities, with a competitive salary and equity options.

Qualifications

• Proven experience in a unified codebase combining application logic and AI components.
• Strong proficiency in modern web applications with Next.js and TypeScript.
• Practical experience with AI models like ChatGPT or Gemini.

Responsibilities

• Build and maintain web application features using TypeScript and React.
• Integrate and optimize AI models via prompt engineering.
• Design and optimize MySQL databases.

Skills

TypeScript

React

Node

Next.js

AI Integration

Prompt Engineering

MySQL

tRPC

LangChain

Job description

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Full Job Description

Senior Full-Stack Engineer (TypeScript & LLMIntegration)

£80-110K + Equity

A hugely exciting AIstart-up is seeking several experienced Full-Stack Engineers to join adynamic product team, focused on building innovative software poweredby cutting-edge AI technologies.

This is a unique opportunityfor a passionate developer to contribute to an ambitious product andwork at the forefront of AI integration.

About the RolenThesuccessful candidate will work within a unified codebase that powersboth 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 userexperiences through advanced Large Language Models.

KeyResponsibilitiesnBuild and maintain web application features usingTypeScript, React, Node + Next.jsnContribute to and maintain amonorepo that includes both the B2B SaaS platform and AI/LLMmodulesnIntegrate and optimize commercially available LLMs (e.g.,OpenAI, Gemini) via prompt engineering and inference pipelinemanagementnImplement multi-step LLM workflows using orchestrationframeworks such as LangChain.nDesign and optimize the MySQLdatabasenDevelop and maintain type-safe RPC endpoints using tRPC andTypeScript to ensure smooth frontend-backend communicationnRapidlyonboard to a modern TypeScript stack to support high-velocity featuredevelopment

Required QualificationsnProven experience workingin a unified codebase combining application logic and AI/LLMcomponentsnStrong proficiency in building modern web applications withNext.js, tRPC, TypeScript, and PrismanPractical experience integratingwith AI models such as ChatGPT or Gemini, including prompt engineeringand API managementnFamiliarity with tools like LangChain (or similar)to implement multi-step AI workflowsnA demonstrated ability to learnquickly and deliver functional features in a fast-pacedenvironment

Preferred QualificationsnExperience deploying andfine-tuning custom AI modelsnPrior experience developing B2B softwareplatforms with multi-user functionality

Oliver Bernard

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