Generative AI Scientist - Agent-Based Systems
London (hybrid)
Contract (Inside IR35) or Fixed-Term Employment
The Opportunity at UST
At UST, we transform lives through the power of technology, combining deep engineering expertise, responsible AI, and an empathy-first mindset to deliver meaningful, real-world impact.
We are seeking a Generative AI Scientist to design and deliver agent-based, AI-enabled solutions integrated into complex enterprise environments. This is a hands-on engineering role, focused on building production-grade AI systems that move beyond experimentation into scalable, secure, and measurable outcomes for our clients.
You'll work closely with UST's engineering teams, AI specialists, and business stakeholders to translate high-value use cases into robust solutions.
What You'll Be Doing:
Build Agent-Based AI Systems
- Design and develop multi-agent orchestration workflows (supervisor / sub-agent patterns)
- Integrate AI workflows into client systems via secure, well-designed APIs
Develop LLM-Enabled Applications
- Design effective prompting strategies and context management
- Implement structured outputs, validation, and safety guardrails, aligned to responsible AI principles
- Build and optimise retrieval-augmented generation (RAG) pipelines
- Work with:
- Vector search and similarity retrieval
- Search and indexing systems
- Embeddings and content storage
- Caching strategies for performance and scalability
- Develop Python-based backend services (APIs, integrations, orchestration layers)
- Apply strong engineering discipline across testing, observability, and error handling
- Contribute to reusable assets and patterns within UST's AI ecosystem
Cloud-Native Delivery (AWS)
- Deploy and operate scalable solutions on AWS
- Ensure best practices across:
- Security and IAM
- Reliability and performance
- CI/CD and environment management
What We're Looking For:
- Hands-on delivery of Generative AI / LLM-based applications
- Experience with:
- Agent frameworks (e.g. LangChain, LlamaIndex, or similar)
- APIs, microservices, and asynchronous workflows
- Experience deploying production systems in AWS environments
Nice to Have:
- Experience with multi-agent architectures
- Exposure to productionising AI systems at scale
- Knowledge of data pipelines, search infrastructure, and platform engineering
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Generative AI Scientist – Agent‑Based Systems in London employer: UST
As a Salesforce Delivery Lead in London, you will join a dynamic and innovative team within the Financial Services sector, where your expertise will drive impactful technology initiatives. Our hybrid work culture promotes flexibility while fostering collaboration, and we are committed to your professional growth through continuous learning opportunities and mentorship. With a focus on Agile practices and high-performance teams, we offer a rewarding environment that values your contributions and encourages meaningful engagement with stakeholders.
