Role - Senior AI / Python EngineerDuration - 6 months with very likely extensionLocation - Hybrid, 2 days... Read more
Role - Senior AI / Python Engineer
Duration - 6 months with very likely extension
Location - Hybrid, 2 days a week onsite in London
Brief -
Senior AI / Python Engineer to join a technology team building a new generation of intelligent, data-driven applications.
This is a hands-on engineering position combining Generative AI development with strong Python software engineering. You will take AI capabilities beyond prototype stage, developing reliable applications and services that can operate at scale within a production environment.
The Role
You will work across the full engineering lifecycle, helping to design, develop and support AI-enabled products and backend services.
Key responsibilities will include:
Building production applications and services using PythonDeveloping solutions using LLMs and Generative AICreating RAG and semantic retrieval solutions over structured and unstructured informationDeveloping intelligent workflows using AI agents and orchestration frameworksBuilding scalable backend APIs using FastAPIImplementing document processing, embedding and vector-search capabilitiesConnecting AI services with existing applications, databases and data sourcesCreating methods for testing and measuring the quality of AI-generated outputsContainerising and deploying applications into modern cloud environmentsWriting clean, maintainable and well-tested softwareWorking closely with product, engineering and business stakeholders to deliver solutions into productionTechnical Experience
We are particularly interested in engineers with strong experience across:
Python, ideally within large-scale production environmentsFastAPI, Pydantic and asynchronous PythonLLMs / Generative AIRAGAI agents / agentic systemsEmbeddings and semantic searchVector databasesPostgreSQLDocker and KubernetesModern CI/CD practicesAPI and microservice developmentAutomated testing and software engineering best practicesThe Ideal Candidate
This would suit somebody who sits between a traditional Senior Python Backend Engineer and AI Engineer.
You should be comfortable building the underlying software around AI models rather than focusing purely on experimentation or data science. We are particularly interested in people who have taken LLM-based applications from concept through to a live production environment. This is a senior hands-on role, so you should be comfortable making technical decisions, solving complex engineering problems and working independently while collaborating closely with the wider technology team.
Why this role?
This is an opportunity to work on AI products where Python engineering, GenAI and production delivery are equally important. You will have significant involvement in how the solutions are designed and built, rather than simply integrating pre-built AI tools.
GCS is acting as an Employment Business in relation to this vacancy.
Read lessLondon, England, United KingdomContract
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