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About Downing Downing is a fast-growing, entrepreneurial, responsible investment manager with headquarters in central London. We believe a great investment opportunity isn’t just financial - it’s a chance to invest in things that matter: our environment, our health, our society, our communities, and our economy. This aligns with our B CORP status. Our ability to adapt and innovate to create products for our investors is key to our growth and success, and our core values are vital to everything we do - from the businesses we invest in to the people we hire. About the Team Our BI and Data team based in split across London and Cardiff, sits at the heart of our investor operations, delivering the data infrastructure, pipelines, and reporting that the business depends on. We are in an active phase of platform modernisation and we are growing the team to meet that ambition. The successful candidate will join a small, collaborative team of data engineers and analysts delivering work across the full data lifecycle, from extraction and transformation through to data modelling and reporting. About the Role As a Senior Data Engineer, and a senior member of the team based in Cardiff, you will be a hands-on technical contributor and a reference point for engineering quality within the team. In practice, this means owning complex ETL pipelines end-to-end, working directly with stakeholders to translate data requirements into solutions that are clear, robust, and built to last. You will lead the specification of data features - taking requirements from across the business, turning them into elegant and fit-for-purpose designs, and working with team members to see them through to delivery. As much as this is an engineering role, it requires confident engagement with the business and the ability to bring people along with you. Key Responsibilities • Design, build, and maintain Python-based ETL pipelines across extract, transform, and load stages, • SQL development - stored procedures, views, and complex ad hoc queries, • Data lake development within Azure Synapse, working to our Bronze/Silver/Gold medallion architecture, • Leading feature specification - working with business stakeholders to define requirements and translate them into solution designs, • Keeping stakeholders informed on the status of data initiatives, • Producing technical documentation: solution designs, data dictionaries, and engineering runbooks, • Reviewing and guiding the work of less experienced members of the team, • Contributing to solution design discussions and architecture decisions You will be working primarily within the Microsoft Azure ecosystem, including Azure SQL Server, Synapse Analytics, Azure Data Factory, and Azure DevOps, with an expectation of familiarity with Microsoft Fabric. Qualifications Required You must have prior experience and strong command of both SQL and Python to apply for this role. Candidates without this will not be considered. Required Skills • Strong Python for data engineering - production-quality ETL code, error handling, logging, and testing, • Hands-on experience with cloud data lake platforms and layered architectures (medallion / Bronze–Silver–Gold or similar) - Azure Synapse, Databricks, or equivalent, • Experience with orchestration tooling, CI/CD pipelines, and version-controlled development workflows, • An AI-first approach to development - you already use AI tools daily to write and review code, design solutions, and solve problems, and are committed to developing this practice as the tooling evolves, • Experience leading feature specification and working closely with business stakeholders, • Experience mentoring or upskilling less experienced colleagues, • Ability to produce clear, maintainable technical documentation as a standard part of delivery Preferred Skills • Experience migrating or re-platforming a data estate, • Experience integrating AI or LLM capabilities into data workflows or tooling, • Financial services or investment management background, • Familiarity with Power BI report development, • Kanban delivery methodology

Principal AI Engineer AI, LLM, Python, CI/CD, SaaS/PaaS, Prompt Engineering, Agentic Workflows, Platform Systems, Remote (UK)Excellent Salary + BenefitsThis is a fantastic Principal AI Engineer opportunity to work with a leading technology services organisation

A leading insurance company in Cardiff is seeking a Penetration Tester to join its internal team.Responsibilities include conducting security assurance services like web application and infrastructure penetration tests.The ideal candidate has experience in penetration testing tools and cloud platfor

LLMs, intelligent agents, and automation drive core capabilities—not just features. LLMs (using SFT/RLHF) as production-ready systems, including:.

LLM-driven discovery and generative interfaces. LLM search, generative interfaces, and emerging agent-based ecosystems. AI search, LLM visibility, and evolving acquisition strategies.

A leading AI companionship company in the UK is seeking a Tech Lead to manage an LLM team focused on creating advanced AI companion systems.

A leading AI consulting firm in the United Kingdom is currently seeking to fill an entry-level position focused on designing evaluation scenarios for LLM-based agents.

Continuously track developments in LLMs, agent frameworks, and broader AI trends relevant to enterprise and security use cases. AI/ML, with 3+ years focused on LLMs, generative models, or agent-based systems.

A leading provider of insurance technology seeks an AI Engineer (LLM) to develop and optimize LLM-powered solutions for risk processing.

A leading technology recruitment firm in the United Kingdom seeks an experienced Tech Lead to own the architecture and build impactful solutions.Responsibilities include translating business needs into scalable solutions, designing system architecture, and optimizing AI-powered features.The ideal ca

A leading technology investor is seeking a Senior AI Engineer to drive the development of LLM-powered products in marketing and advertising.

This range is provided by YO IT Group.Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Anywhere in the World - Permanent Remote.Bachelor’s/Master’s degree in Engineering, Computer Science (or equivalent experience).At least 4 years of relevan

A leading technology company is seeking a full-stack developer with expertise in AI to design and deploy intelligent systems.This fully remote position requires strong skills in frontend and backend technologies, including React and Python.You will own features from UI to model deployment, working o

A leading venture capital firm in the UK is seeking a Staff AI Engineer to lead architectural decisions for data platforms and LLM-powered products.

English LLM Data Annotator/Evaluator.

Key responsibilities include designing and maintaining SDKs, deploying AI workloads in cloud environments, and refining LLM orchestration strategies.

A global EdTech company seeks an experienced AI/ML Engineer to build end-to-end AI pipelines and fine-tune models.Candidates should have strong hands-on ML/AI experience and a background in Python-based application development.The role requires designing expert-matching algorithms and incorporating

A forward-thinking AI company in the United Kingdom is seeking a Gen-AI Prompt & Context Engineer to design and operate LLM workflows.

The successful candidate will collaborate with cross-functional teams to design and implement effective LLM solutions.

This fully remote role involves architecting LLMOps pipelines, developing machine learning models, and collaborating with cross-functional teams.

You are proficient in Python/PyTorch and comfortable with the modern LLM stack (vLLM, HuggingFace, fine-tuning pipelines, eval frameworks). You understand the physics of LLMs—how prompt conditioning, temperature, and sampling affect the "soul" of a chatbot. CTO / COO (web2/web3), 1+ year in AI/LLM

Strong knowledge of machine learning, deep learning (including LLMs), and natural language processing. Hands-on experience training, fine-tuning, and deploying LLMs. Machine Learning Engineer | Python | Pytorch | Natural Language Processing | LLM | Large Language Models | Remote, Europe.

Contribute to and optimise their monorepo, which includes both B2B SaaS platforms and AI/LLM modules. Integrate and fine-tune commercially available LLMs (e. Implement multi-step LLM workflows using orchestration frameworks like LangChain.

A cutting-edge AI company is seeking a Machine Learning Engineer to work remotely across Europe.You will play a key role in enhancing an integrated AI assistant, tackling challenges in evaluating retrieval systems and designing benchmarks.Candidates should possess a Master’s or PhD in Computer Sci

A leading tech company is seeking an AI Research Engineer to drive innovative AI research initiatives.This role involves leading independent projects, designing evaluation methodologies, and collaborating with cross-functional teams to enhance AI systems.Candidates should have over 5 years of engine

A cybersecurity firm in the United Kingdom is seeking a Cybersecurity Specialist on a contract basis to evaluate and secure large language models (LLMs). Candidates should have an interest in cybersecurity, proficiency in LLM usage, and completed a Red Team Academy certification.

Senior LLM, RAG & Agentic AI Consulting Engineer - Lead / Senior FDE. LLM applications using modern orchestration patterns, prompt frameworks and evaluation loops. Strong hands-on experience with LLMs, embeddings, RAG, retrieval stacks and vector databases.

LLM Engineer – Retrieval & Knowledge Systems. We’re looking for an LLM Engineer to design and deploy retrieval-augmented generation (RAG) systems powering intelligent applications used in enterprise and research environments. This role goes beyond prompt engineering — you’ll work on end-to-e

You will work on cutting-edge projects that merge the power of Large Language Models (LLMs) with our state-of-the-art computer vision technologies. Developing and scaling robust LLM-powered applications using a variety of APIs, including OpenAI, Anthropic, and Gemini. Implementing and managing multi

LLMs, intelligent agents, and automation drive core capabilities—not just features. LLMs (using SFT/RLHF) as production-ready systems, including:.

You will play a central role in shaping how modern AI technologies (LLMs, prompt engineering, ML models) are embedded into both the product and the broader business. LLMs and prompt engineering techniques.

Leading the design of multi-agent systems and LLM orchestration patterns. LangGraph · Pydantic AI · Agent SDK · LLMOps. Shaping the infrastructure behind model serving, training pipelines, LLMOps, and AgentOps across the full AI stack.

Build and optimise LLM-powered audio pipelines and extend our Qwen-based vision model for audio production use cases.

We are currently looking Data Analyst, to work in our Cardiff Bay office.You will be expected to attend the office 50% of the working week, to align with our hybrid working policy.At Creditsafe, we weave our core values of customer-obsession, trust, respect and the courage to be different into the v

Deep understanding of modern serving frameworks and techniques like vLLM or TRT-LLM.

A fast-growing technology business focused on sustainable operations for large, multi-site organisations.The platform brings together building, asset and energy data into one place, giving customers full visibility and control across their estate.The product uses connected device data, automation an

Join us as a Senior Machine Learning Engineer.In this role, you’ll be driving and embedding the deployment, automation, maintenance and monitoring of machine learning models and algorithms.Day-to-day, you’ll make sure that models and algorithms work effectively in a production environment while

Do you want to own and scale Marketing Mix Modelling across global markets?.Have you worked on marketing analytics but lacked real commercial impact?.Are you ready to shape how a business invests millions in marketing?.A global live entertainment business is investing heavily in its data science cap

If you’re craving a role where your data science expertise genuinely changes how products are built and decisions are made… this is it.Up to £85,000 + fantastic benefits.Advanced Technology & Complex Systems.We’re partnered with a fast‑growing technology company that applies cutting edge da

SeeByte, the global leader in developing smart software solutions for uncrewed maritime systems, are looking for several.As part of a world renowned, expert engineering team, you will be working with state-of-the-art software systems for the management of uncrewed systems software.This is a fantasti

Senior Machine Learning Engineer (Generative Video / GenAI).We’re partnered with a leading GenAI company redefining VFX, digital humans, and AI-driven content creation, now scaling their video generation and multimodal AI capabilities.They’re hiring a Senior Machine Learning Engineer to build st

They are a global, fully remote fintech working across payments and credit risk.Their teams operate internationally collaborating on high impact risk and credit solutions.They use Python, SQL and GenAI tools heavily across the business.Deliver credit risk and fraud analytics across partner portfolio

AI is transforming drug discovery.Most models are built on sparse, fragmented, and low-quality data.So instead of accelerating breakthroughs, they often lead to dead ends.We’re working with a cutting-edge, seed-stage start-up building an AI-native platform powered by deeply curated, high-quality e

This is a fantastic opportunity to work on cutting-edge and data initiatives, helping shape advanced analytics products used across international markets.As a Senior Data Scientist, you’ll work at the intersection of.You’ll collaborate closely with.Analyse complex datasets to uncover trends, pat

The company is dedicated to providing cutting-edge solutions that advance the development and optimization of engineering designs, catering to a variety of industries.With a strong commitment to innovation and collaboration, SoftInWay fosters an environment for professionals to thrive and contribute

Senior Machine Learning Engineer | Profitable B2B AI Platform | 3-4 Days per week Hybrid, London, Up to £120,000.I am working with a UK household brand who are innovating on how companies find a flexible workforce.They are building in new AI features which will revolutionise how interviews are conf

Hands-on exposure to LLMs, RAG pipelines, and agentic frameworks. You’ll implement AI and agentic systems across enterprise clients, designing scalable architectures using LLMs, RAG pipelines, and agentic workflows, while working closely with engineering and product teams to ensure successful outc