GenAI Python Developer

Genai
18 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior
Compensation
£ 70K

Job location

Tech stack

API
Artificial Intelligence
Amazon Web Services (AWS)
Amazon Web Services (AWS)
Amazon Web Services (AWS)
Azure
Continuous Integration
DevOps
Distributed Systems
Amazon DynamoDB
Identity and Access Management
Python
PostgreSQL
MongoDB
MySQL
NoSQL
Cloud Services
Search Technologies
SQL Databases
Systems Integration
Large Language Models
Generative AI
Backend
FastAPI
Git Flow
Cassandra
Api Gateway
REST
Amazon Web Services (AWS)
Terraform
Microservices

Job description

If you're a strong Python engineer who's genuinely excited by the possibilities of GenAI in real enterprise environments, this is a brilliant opportunity. You'll be working on a large-scale Generative AI platform that's reshaping how a major global finance services business builds, deploys, and adopts AI across the business.

Expect hands-on engineering, real problem solving, and plenty of collaboration as you help architect, automate, and operationalise LLM-driven services at scale.

What You'll Be Doing:

  • Building backend services and APIs that give secure, governed access to LLM capabilities

  • Developing Python-based GenAI components including prompt orchestration and evaluation tooling

  • Integrating LLMs with enterprise systems, observability layers, and security frameworks

  • Designing and maintaining CI/CD pipelines using Azure DevOps

  • Working closely with platform leads, architects, and SRE teams to ensure stable, scalable operations

  • Supporting benchmarking, evaluation, and experiment tracking to measure LLM performance and cost

  • Contributing to RAG implementations and vector-driven retrieval patterns

  • Helping shape platform patterns, reusable components, and clear documentation

  • Troubleshooting performance issues across distributed systems and cloud services

Requirements

  • 5+ years of backend engineering experience, with strong Python at the core

  • Hands-on exposure to GenAI technologies and Large Language Models

  • Practical understanding of LLM evaluation, prompt handling, and operational complexities

  • A DevOps-first approach with experience in CI/CD, observability, and automation (Azure DevOps preferred)

  • Confidence working in regulated enterprise environments with tight security controls

  • Experience integrating AI or ML services into real-world applications

  • Knowledge of authentication, secret management, networking, and model access governance

Bonus Points For:

  • Kong API Gateway, Kong Mesh, Flux CD

  • AWS stack: EC2, EKS, S3, SQS, DynamoDB, Bedrock

  • RESTful API development with FastAPI, microservices, Terraform, GitOps workflows

  • Prompt evaluation tools such as Promptfoo

  • SQL and NoSQL experience: MySQL, PostgreSQL, MongoDB, Cassandra

  • Exposure to RAG patterns and vector search technologies

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