Software Engineer - GenAI - Python - FastAPI - React - Full Stack

JR United Kingdom; Cardiff; Remote; GBP 45,000 - 55,000; Full time

Job summary

A leading digital transformation consultancy seeks a Full Stack Developer specializing in GenAI for projects with top UK companies. The role focuses on developing innovative applications using modern technologies like Python, FastAPI, and React, offering mostly remote work with occasional travel. Ideal candidates will have experience in GenAI frameworks and microservices development.

Qualifications

• Proficient in building microservices using Python (FastAPI) or TypeScript.
• Experienced with React and TypeScript, using frameworks like Next.js.
• Familiarity with GenAI frameworks and large language models.

Responsibilities

• Build and evolve Generative AI proof-of-concepts for clients.
• Support transition of POCs into scalable, production-ready solutions.
• Contribute to design and development of full-stack applications.

Skills

Python

FastAPI

React

TypeScript

GenAI frameworks

Large language models

Job description

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Software Engineer - GenAI - Python - FastAPI - React - Full Stack, cardiff

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Client:

Stealth iT Consulting

Location:

cardiff, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

6

Posted:

31.05.2025

Expiry Date:

15.07.2025

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Job Description:

Stealth IT have partnered up with a world leading digital transformation consultancy to hire a GenAI Full Stack Developer.

We have a top end budget of £55k and the role will be mostly remote with very occasional office travel to client sites (likely to be 1/2x per month) which may be in London, Manchester, Newcastle, or Glasgow.

We are, unfortunately, unable to consider applicants who require visa sponsorship for this position.

This is an excellent opportunity to work on developing cutting edge GenAI applications, giving you exposure to working on projects with the biggest companies in the UK across various sectors including Public Sector, Retail, Telecoms, Utilities, Energy, Manufacturing, Automotive, and more.

Role Overview:

• Work closely with the team to build and evolve Generative AI (GenAI) proof-of-concepts (POCs) for clients using techniques like Retrieval-Augmented Generation (RAG) and intelligent agents.
• Support the transition of these POCs into scalable, production-ready solutions. C
• Contribute to the design and development of full-stack applications for both GenAI and traditional projects, while helping establish the infrastructure for reliable end-to-end deployments.

Candidate Profile

• Eligible for SC Clearance
• Proficient in building microservices using Python (FastAPI) or TypeScript (Express or similar).
• Experienced with React and TypeScript, using modern frameworks like Next.js or Vite.
• Familiarity with GenAI frameworks such as LangChain, LangGraph, CrewAI, or Vercel AI.
• Hands-on experience with large language models (LLMs) like OpenAI, Anthropic, Mistral, or LLaMA, and platforms like Ollama.

If you feel like you tick the boxes, and would like to find out more please apply for the role!