Senior Generative AI Scientist – Agentic AI & Multi-Agent Systems at UST, London, £Contract Rate

Role description

Senior Generative AI Scientist – Agentic AI & Multi-Agent Systems

London (Hybrid, 3 days onsite)

Contract (Inside IR35) or Fixed-Term Employment

UST is seeking a hands-on Senior Generative AI Scientist to design, build, and deploy production-grade AI solutions that solve real business problems. You will work with engineering teams, AI specialists, and business stakeholders to deliver scalable agentic AI systems, multi-agent workflows, and enterprise GenAI applications.

The Role:

• Design and develop multi-agent AI systems and orchestration workflows
• Build production-ready LLM applications and AI-powered automation solutions
• Develop and optimise RAG pipelines, retrieval architectures, and vector search solutions
• Build Python-based APIs, microservices, and orchestration services
• Design asynchronous, event-driven workflows and integrations
• Implement AI guardrails, evaluation frameworks, observability, and monitoring
• Deploy and operate cloud-native AI solutions on AWS
• Contribute reusable frameworks, patterns, and accelerators across UST's AI practice

What you will bring:

• Strong commercial experience in Python backend engineering
• Hands-on experience delivering production Generative AI and LLM applications
• Experience with agent frameworks such as LangGraph, LangChain, LlamaIndex, CrewAI, AutoGen, Semantic Kernel, or similar
• Experience designing multi-agent or agentic AI workflows

Strong experience with:

• Retrieval-Augmented Generation (RAG)
• Vector databases and embeddings
• Search and indexing systems
• Experience building APIs, microservices, and asynchronous workflows
• Experience with cloud-native development and deployment on AWS
• Strong understanding of software engineering best practices, including testing, observability, reliability, and CI/CD

Preferred Experience:

• Production-scale AI platform delivery
• Event-driven architectures (Kafka, Celery, AWS Step Functions, or similar)
• AI evaluation, monitoring, and safety frameworks
• Regulated industry experience (Financial Services, Healthcare, Insurance, Public Sector)
• MLOps and AI platform engineering experience

What We're Looking For

We're looking for engineers who can take AI solutions from concept to production. The ideal candidate has built enterprise-grade LLM applications, understands agentic AI architectures beyond simple chatbots, and combines strong engineering fundamentals with practical delivery experience in complex environments.

Hurry & apply!

#UST

Skills

AI Governance, Design Thinking, Product Design, Stakeholder Management, Generative AI, Solutioning

About UST
UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.