Machine Learning Research Engineer (LLM & AI Agents)

Company IconPrinciple
Location IconLondon

Machine Learning Research Engineer (LLM & AI Agents) Contract length: 6 months with potential to extend Location: Hybrid 3 days per week in King's Cross We are hiring a Machine Learning Research Enginee...Read More>>.

Posted: June 6th, 2026
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LLM & AI Agents Research Engineer - Hybrid Role

Company IconPrinciple
Location IconLondon

A leading AI research organization seeks a Machine Learning Research Engineer to work on large language models and AI agents. This is a hybrid role based in King's Cross, requiring experience in machine learning and strong skills in Python and PyTorc...Read More>>.

Posted: June 6th, 2026
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Research Engineer, ML — Advancing RL & AI for Science

Company IconHuawei Technologies Research & Development (UK) Ltd
Location IconLondon

A leading tech research organization in Greater London is seeking a skilled Machine Learning Engineer to join their Reinforcement Learning Team. This role focuses on advancing AI through original research and developing cutting-edge algorithms that c...Read More>>.

Posted: June 6th, 2026
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ML Research Engineer: Open-Source Drug Discovery

Company IconValence Labs
Location IconLondon

Valence Labs in London is seeking Research Engineers at various seniority levels to lead the development of software and AI systems. The role focuses on industrializing scientific discovery through machine learning.Ideal candidates will hav...Read More>>.

Posted: June 6th, 2026
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Senior AI Research Engineer - Ocean Data & Models

Company IconNational Oceanography Centre
Location IconSouthampton

A leading oceanographic research institution in the UK is looking for an AI Research Software Engineer to develop AI infrastructure and models that advance marine sciences. This full-time role offers the opportunity to lead teams and work within a vi...Read More>>.

Posted: June 6th, 2026
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Biometric CV Research Engineer — Hybrid, Growth Shares

Company IconiProov
Location IconLondon

A leading biometric technology provider in Greater London seeks a Computer Vision Research Engineer. The successful candidate will research and develop biometric systems while collaborating on cross-functional projects. Proficiency in Machine Learnin...Read More>>.

Posted: June 6th, 2026
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AI Research Engineer — Remote, Scale AI for Millions

Company IconBending Spoons
Location IconLondon

An innovative company is seeking exceptional talent to join their ambitious team. This role offers the chance to work on transformative AI projects, driving impactful solutions that enhance user experiences for millions. With a focus on growth and co...Read More>>.

Posted: June 6th, 2026
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Research Engineer, Drug Design AI (Remote + Equity)

Company Icondeepmirror
Location IconLondon

A pioneering AI drug design company based in London is seeking an experienced research engineer to design and develop cutting-edge algorithms for drug discovery. In this role, you'll collaborate with diverse teams, build production-quality software,...Read More>>.

Posted: June 6th, 2026
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Lead ML Research Engineer for Scalable Physics AI

Company IconPhysicsX
Location IconLondon

PhysicsX, located in the City of London, is looking for professionals to shape their Research strategy in AI-driven simulations. The ideal candidate has a master's or PhD in a relevant field, is passionate about developing machine learning solutions,...Read More>>.

Posted: June 6th, 2026
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Senior Research Engineer - Multimodal & Video Foundation Model

Company IconTether.io
Location Icon

OverviewSenior Research Engineer - Multimodal & Video Foundation ModelAs a member of the AI model team, you will drive innovation in architecture development for cutting-edge models of various scales, including small, large, and...Read More>>.

Posted: June 6th, 2026
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Research Engineer, AI Agents & Outer-Loop Systems

Company IconTessl
Location IconLondon

Tessl is searching for a Research Engineer to join our AI Research team in London. In this role, you'll collaborate with engineering and product teams to enhance AI coding agents and their functionality.The ideal candidate has over 4 years...Read More>>.

Posted: June 6th, 2026
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Research Engineer, AI for Bio-Analysis & LLM Systems

Company IconHlx Life Sciences
Location IconLondon

Hlx Life Sciences, located in Greater London, is seeking a Research Engineer to oversee the research function. You will transform product feedback into actionable research, collaborating closely with biologists and scientific contractors.Yo...Read More>>.

Posted: June 6th, 2026
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Research Engineer, 3D World Models & Generative AI

Company IconSpAItial AI
Location IconLondon

A leading AI research company in Greater London is looking for a Research Engineer to develop cutting-edge generative methods for creating high-quality 3D environments. The ideal candidate should possess strong fundamentals in machine learning, parti...Read More>>.

Posted: June 6th, 2026
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Quant Research Engineer: Macro/FX & Rates Analytics

Company IconVerition Fund Management LLC
Location IconLondon

A multi-strategy hedge fund is seeking a Quant Research Engineer to support trading decisions through robust research and analytics. Responsibilities include maintaining research dashboards, backtesting strategies, and executing trades under directio...Read More>>.

Posted: June 6th, 2026
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AI Research Engineer: Build Practical ML Systems

Company IconMediaTek
Location IconLondon

A global technology company is seeking a Research Engineer focused on advancing AI through practical systems. Responsibilities include implementing machine learning algorithms, building prototypes, and collaborating with researchers. Ideal candidates...Read More>>.

Posted: June 6th, 2026
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AI Research Engineer - LLM Evaluation & Alignment (UK)

Company IconJobgether
Location Icon

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 sy...Read More>>.

Posted: June 6th, 2026
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PAT Testing Engineer Watford

Company IconJrpattesting
Location IconWatford

JR PAT Testing is growing rapidly across the UK, and we would love to speak with you if you are an experienced PAT Engineer with the equipment and insurance in place. If you are already self-employed or considering becoming self-employed...Read More>>.

Posted: June 6th, 2026
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Senior Media Quality Applied Research Engineer (Remote)

Company IconSpotify
Location IconLondon

Spotify is seeking an experienced media technology researcher and engineer to join our London team. In this role, you will work on audio and video signal processing and integrate prototypes into real-world applications. Ideal candidates should have o...Read More>>.

Posted: June 6th, 2026
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Research Engineer – AI Features & Agent Workflows

Company IconJetBrains
Location IconLondon

JetBrains is looking for a Research Engineer to join Kineto, an AI startup. In this role, you will ship AI product features, improve agent workflows, and track developments in the AI space. Ideal candidates have a solid foundation in engineering or m...Read More>>.

Posted: June 6th, 2026
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Biometric Research Engineer: Liveness & ML Innovator

Company IconiProov
Location IconLondon

iProov in London is seeking a Research Engineer to push the boundaries of biometric security. You'll work within a collaborative team to enhance liveness verification technologies that protect millions of users globally.Ideal candidates sho...Read More>>.

Posted: June 6th, 2026
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AI-Driven ML Research Engineer for Drug Discovery

Company IconIsomorphic Labs Limited
Location IconLondon

A cutting-edge AI research firm in Greater London seeks Research Engineers with expertise in machine learning to contribute to revolutionary advancements in drug design. The role involves developing state-of-the-art AI models, working closely with sc...Read More>>.

Posted: June 6th, 2026
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Security Research Engineer - Threat Intel & Prototyping

Company IconForwardrole
Location Icon

Forwardrole is seeking a talented Cyber Security Research Engineer to join their growing team in Hampshire. This hybrid role offers a salary between £45,000 and £85,000, plus bonuses.In this position, you will tackle cyber security resear...Read More>>.

Posted: June 6th, 2026
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AI Research Engineer Pre training 100% Remote

Company IconFramework Ventures
Location Icon

About the JobAs a member of the AI model team, you will drive innovation in architecture development for cutting‑edge models of various scales, including small, large, and multi‑modal systems. Your work will enhance intelligence, i...Read More>>.

Posted: June 6th, 2026
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Research Engineer / Scientist, Post-training - London

Company IconH Company
Location IconLondon

About H: H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi-step tasks typically performed by humans, AI agents will help unlock full human potential. H is hiring the world’s best AI tale...Read More>>.

Posted: June 12th, 2026
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AI Security Research Engineer – Cloud Threat Detection

Company IconMaze
Location IconLondon

Maze is looking for a Security Research Engineer to join our cutting-edge team. You will define real security risks in AI-powered vulnerability detection, leading labeling operations and contributing to product development. This role emphasizes cl...Read More>>.

Posted: June 13th, 2026
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Lead AI Research Engineer — Scalable ML & Impact

Company IconThomson Reuters
Location IconLondon

Thomson Reuters is hiring a Lead Research Engineer to innovate solutions using AI and ML. This role involves developing scalable ML systems and collaborating with cross-functional teams.The ideal candidate will have over 8 years of experien...Read More>>.

Posted: June 13th, 2026
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Senior Research Engineer: AI Agents & LLM Systems

Company IconSynthesia
Location Icon

Synthesia in the United Kingdom is seeking an experienced software engineer to drive the development of Agentic AI Agents, focusing on delivering impactful features. The ideal candidate will have at least 7 years of software engineering experience...Read More>>.

Posted: June 13th, 2026
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AI Research Engineer: Scale ML for Learning Solutions

Company IconCambridge University Press & Assessment
Location IconCambridge

Cambridge University Press & Assessment is seeking a Machine Learning Research Engineer to join their innovative Applied AI team. This is a hybrid position requiring collaboration in the office for about 40-60% of the time, focusing on developing...Read More>>.

Posted: June 14th, 2026
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AI Research Engineer - LLMs & Multi-Agent Simulations

Company IconGravity Engineering Services Pvt Ltd.
Location IconLondon

Gravity Engineering Services Pvt Ltd. is hiring AI Engineers to build advanced AI systems for simulating complex behaviours. The role involves formulating research questions, designing experiments, and validating model behaviour.Ideal candi...Read More>>.

Posted: June 16th, 2026
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ML Research Engineer — AI for Drug Design & Discovery

Company IconGravity Engineering Services Pvt Ltd.
Location IconLondon

Gravity Engineering Services Pvt Ltd. in Greater London is seeking a professional to contribute to AI model development in drug design. This role offers the opportunity to work in a collaborative environment, translating research concepts into pra...Read More>>.

Posted: June 16th, 2026
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Hybrid London CV Research Engineer 3D Reconstruction

Company IconNiantic Spatial
Location IconLondon

Niantic Spatial is seeking a Computer Vision Research Engineer to join their innovative team in London, focusing on cutting-edge 3D reconstruction technology. You will be responsible for conducting original research and implementing advanced algor...Read More>>.

Posted: June 21st, 2026
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Quantum ML Research Engineer — AI for Science

Company IconWeAreTechWomen
Location Icon

WeAreTechWomen is seeking a Research Engineer focused on quantum computing and machine learning to bridge between research and implementation. You will take ownership of ML solutions and contribute significantly to the Quantum Computing Initiative...Read More>>.

Posted: June 27th, 2026
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Research Engineer, AI Systems / LLM Agents

Company IconCareer Moves Group
Location IconLondon

Job Title: Research Engineer, AI Systems / LLM AgentsLocation: London Kings Cross, hybrid, 3 days onsite per weekRate: £45 per hour PAYEContract: 6 months, extension possibleHours: Monday-...Read More>>.

Posted: June 28th, 2026
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AI Systems Research Engineer II (Hybrid)

Company IconCareer Moves Group
Location IconLondon

A leading technology recruitment agency is seeking a Software Engineer II for a hybrid role in London. This position involves conducting advanced research in machine learning, designing methods for large language models, and collaborating with cross-...Read More>>.

Posted: June 30th, 2026
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Remote AI Vision-Language Research Engineer

Company IconTether
Location IconLondon

Tether is looking for an AI model team member to innovate in training and optimizing vision-language models. Your responsibilities will include end-to-end research and implementing advanced training techniques while collaborating with a talented t...Read More>>.

Posted: June 30th, 2026
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Robotics Research Engineer: Sensor-Guided Manipulation

Company IconOcado Group
Location IconWelwyn Garden City

Ocado Group in Welwyn Garden City is seeking a Robotics Research Engineer to lead the design and development of sensor-guided robotic manipulation systems.In this role, you will enhance the Ocado Smart Platform through cutting-edge technolo...Read More>>.

Posted: June 30th, 2026
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Junior Embedded Software Research Engineer – Hybrid

Company IconDormont Manufacturing Co
Location IconReading

Thales in Reading is seeking a Junior Embedded Software Research Engineer to develop innovative solutions in embedded software. You will work collaboratively within a team and play a key role in military communications projects.The role req...Read More>>.

Posted: July 1st, 2026
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Senior Applied Research Engineer - Media Quality

Company IconDormont Manufacturing Co
Location IconLondon

We design Spotify’s consumer experience—end to end, moment to moment, across every screen, platform, and partner integration. Our mission is to make listening feel effortless, personal, and joyful for billions of users around the world. Tha...Read More>>.

Posted: July 1st, 2026
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AI Research Engineer — Shape Product Autonomy

Company IconDormont Manufacturing Co
Location Icon

Dormont Manufacturing Co. in the United Kingdom is seeking a candidate to drive product autonomy through model training and strategic decision-making. Applicants should have a strong maths background and coding skills, as the role involves working...Read More>>.

Posted: July 2nd, 2026
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Research Engineer - AI Code Post-Training

Company IconDormont Manufacturing Co
Location IconLondon

Sonar seeks an ambitious research engineer to innovate and develop solutions for enterprise-grade coding agents. Operating in a fast-paced environment, you will harness static analysis and large language model post-training techniques.Your...Read More>>.

Posted: July 2nd, 2026
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Research Engineer - Post-Training for Agentic Coding

Company IconDormont Manufacturing Co
Location IconLondon

Who is Sonar? Sonar is driving the future of agent-centric software development. As the leader in AI code review and verification, we solve a critical problem: ensuring that software generated by AI-assisted developers or autono...Read More>>.

Posted: July 2nd, 2026
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Senior Research Engineer: Quant Trading Systems

Company IconDormont Manufacturing Co
Location IconLondon

Hudson River Trading is looking for highly motivated Research Engineers to enhance their quantitative trading systems. The role demands exceptional programming skills and the ability to thrive in a fast-paced environment.As a Research Engin...Read More>>.

Posted: July 2nd, 2026
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Agentic AI Security ML Research Engineer

Company IconBreath HR
Location IconLondon

Breath HR is seeking an ML Research Engineer to join their team in the Greater London area. This role involves building and evolving a cutting-edge Security Operations Centre to facilitate automated decision-making in real-world cybersecurity even...Read More>>.

Posted: July 3rd, 2026
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Agent AI Security & Privacy Research Engineer

Company IconProfessor Doctor Obi
Location IconGlasgow

Professor Doctor Obi is hiring a KTP Associate to develop a cyber security and privacy assurance strategy for AI applications. This full-time position offers a salary between £41,064 and £48,822, supplemented up to £60,000 per annum. You will b...Read More>>.

Posted: July 3rd, 2026
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AI Research Engineer — Scalable ML Systems

Company IconmicroTECH Global Ltd
Location IconCambridge

microTECH Global Ltd is seeking an AI Software Engineer in Cambridge or London, UK. The successful candidate will lead engineering efforts on innovative research projects in machine learning and artificial intelligence.This role requires an...Read More>>.

Posted: July 4th, 2026
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Quantitative Research Engineer - Trading Systems & Data

Company IconDRW
Location IconLondon

DRW is looking for a Research Engineer in London. This role involves working with researchers to implement studies and develop algorithms for financial markets, leveraging modern software skills in C++ and Python. Candidates should possess a Bachelor...Read More>>.

Posted: July 5th, 2026
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Research Engineer, Machine Learning (RL Velocity)

Company IconAnthropic
Location IconLondon

About the role The RL Velocity team owns the efficiency and reliability of our RL Science stack - the infrastructure, tooling, and systems that let researchers iterate quickly on training runs. As a Research Engineer on the team, you'l...Read More>>.

Posted: July 1st, 2026
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Research Engineer, Machine Learning (Reinforcement Learning)

Company IconAnthropic
Location IconLondon

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems that are safe and beneficial for users and society. About the Role As a Research Engineer within Reinforcement Learnin...Read More>>.

Posted: July 1st, 2026
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Senior ML Research Engineer - Artificial Intelligence

Company IconBloomberg
Location IconLondon

Senior ML Research Engineer - Artificial Intelligence Location London Business Area Engineering and CTO Ref # 10051918 **Description & Requirements** Bloombergu2019s Engineering AI...Read More>>.

Posted: June 8th, 2026
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Natural Hazards Research Engineer - Hybrid - Gloucester, UK

Company IconEDF
Location IconGloucester

Natural Hazards Research Engineer - Gloucester, UKAbout the RoleReady to turn your PhD research into real-world impact in climate and natural hazards? Looking to apply your expertise in statistical modelling to challenge...Read More>>.

Posted: June 15th, 2026
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