Gen AI Developer

W3Global Inc
Charing Cross, United Kingdom
7 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Charing Cross, United Kingdom

Tech stack

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

Job description

  • Build and maintain backend services and APIs enabling secure access to LLM capabilities.
  • Develop and optimise Python-based GenAI components including prompt orchestration, output validation, and evaluation tooling.
  • Integrate LLMs with enterprise systems, observability, and security frameworks.
  • Design and maintain CI/CD pipelines aligned to engineering standards (Azure DevOps primarily).
  • Collaborate closely with platform leads, architects, and SRE teams to ensure reliable operationalisation of GenAI services.
  • Support benchmarking, evaluation, and experiment tracking for LLM performance and cost.
  • Contribute to RAG implementations and data access patterns supporting enterprise use cases.
  • Help shape API standards, reusable patterns, and documentation for platform adoption.
  • Troubleshoot and optimise performance across distributed systems and cloud services., * Efficient, secure, and reusable GenAI components delivered into production.
  • Improved engineering velocity through automation and DevOps best practices.
  • Stable services, with observability and evaluation built in from day one.
  • Platform teams and application teams love using what you build.
  • Clear documentation and fast onboarding for future use cases.

Requirements

Do you have experience in Terraform?, Do you have a Master's degree?, The ideal candidate will bring practical GenAI development experience, strong automation skills, and the curiosity to solve emerging engineering challenges in this rapidly evolving space., * Strong Python backend engineering in production systems (Python, Node.js, and associated frameworks like Django, Spring).

  • Working knowledge of GenAI technologies and Large Language Models.
  • Experience evaluating LLM performance and prompt handling complexities.
  • Solid DevOps mindset with CI/CD expertise and observability best practices (Azure DevOps preferred).
  • Comfortable working in regulated enterprise environments with strict security controls.
  • Experience integrating AI services into real-world apps or workflows.
  • Knowledge of authentication, secret management, network boundaries, and model access governance

Preferred Skills

  • Kong API Gateway, Kong Mesh, Flux CD.
  • AWS services: EC2, EKS, S3, SQS, DynamoDB, Bedrock.
  • RESTful API development (FastAPI preferred), microservices, Terraform with GitOps workflows.
  • Prompt evaluation tools (like Promptfoo).
  • Experience with SQL (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra) databases
  • Exposure to RAG patterns and vector search technologies. Behavioural Competencies
  • Proactive self-starter who identifies gaps and drives solutions without waiting for tickets.
  • Comfortable working in ambiguous emerging domains where best practice is evolving.
  • Collaborative communicator able to influence and gain trust across engineering data, and product teams.
  • Curiosity to explore and adopt new GenAI techniques in a structured, secure way.
  • Bias toward automating everything to reduce toil and accelerate delivery.

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