Lead / Senior Software Engineer - Java/Python/AWS - 12 Month Contract

Lead / Senior Java/ Python Engineers
Big 4 Consultancy
12 month contract
On site in London

Location : London (5 days in office)
Duration 12 months 
Key Skills
Proficient in Java / Python concepts and proficient advanced experience.
Hands-on practical experience delivering system design, application development, testing, and operational stability, particularly in cloud environments.
Advanced knowledge of cloud-based systems, artificial intelligence, and machine learning, with considerable in-depth knowledge in implementing solutions using AWS.
Deep understanding of AI/ML solutions implementation, with emphasis on LLM applications and retrieval-augmented generation.
Practical cloud-native experience, specifically with AWS (compute, storage, networking, IAM, KMS, observability).
Experience with RAG-based semantic search and LLM inference workflows using OpenAI and Claude models.
Expertise in modern SDLC and DevOps: CI/CD (e.g., Jenkins/GitLab), infrastructure as code (e.g., Terraform/CloudFormation), automated testing, and SRE practices.
One Team Lead also required to lead the team of 4 who can demonstrate a background in the following:

Technical leadership and architecture
Delivery ownership
AI/ML solution stewardship
People leadership
Stakeholder and product partnership
Controls and governance