HELLO,
LONDON

Lead Python EngineerWe’re working with an early-stage AI product company in London building software that automates real-world operational workflows using Python and applied AI.This is a hands-on engineering role focused on designing and building backend systems, APIs, and data-driven workflows that power AI features used in production. You’ll work closely with product and design to take ideas from concept to live features, integrating LLM capabilities into practical use cases.The role is around 80 percent coding and 20 percent leadership. Alongside building systems, you’ll mentor engineers, contribute to code reviews, and help shape technical decisions as the team grows.You’ll be responsible for:Designing and building scalable backend services using PythonDeveloping APIs that support core product functionalityIntegrating LLM and AI-driven features into workflowsImproving system performance, reliability, and maintainabilityCollaborating cross-functionally to deliver features end to endKey requirements:4 to 8 years software engineering experienceStrong Python backend skills, APIs, and frameworks such as FastAPI, Flask, or DjangoExperience building production systems in a startup or fast-paced environmentFamiliarity with cloud platforms such as AWS, GCP, or AzureExposure to AI, LLMs, or RAG is beneficialYou’ll join a small, product-focused team with high ownership and the opportunity to influence both engineering direction and product development.

AI Research Engineer – ContractLocation: London – 3 days onsiteContract: 6 months (extensions possible)Start: ASAPOverviewLeading tech company hiring a Research Engineer to work on LLM agents and machine learning systems within an AI research team.Key ResponsibilitiesBuild and optimise machine learning models and LLM-based agentsDesign experiments, tools, and infrastructure for large-scale AI systemsWrite production-quality Python code alongside researchers and engineersTranslate research into practical, scalable solutionsSkills & Experience8 years’ experience in software engineering / machine learningStrong Python and PyTorch experienceExperience with LLMs, generative AI, or large-scale ML systemsAbility to work at pace in a research-driven environmentQualificationsDegree in Computer Science, Machine Learning, or related fieldAdvanced degree (PhD/Master’s) in ML, Maths, or Physics is a plus