Role Description The AI Safety Institute research unit is looking for exceptionally motivated and talented people to join its Safeguard Analysis Team. Interventions that secure a system from abuse by bad actors will grow in importance as AI systems become more advanced and integrated into society. The AI Safety Institute's Safeguard Analysis Team researches such interventions, which it … to hire security researchers who have historically worked outside of AI, such as in - non-exhaustively - computer security, information security, web technology policy, and hardware security. Diverse perspectives and research interests are welcomed. The Team seeks people with skillsets leaning in the direction of either or both of Research Scientist and ResearchEngineer, recognising that some … technical staff may prefer work that spans or alternates between engineering and research responsibilities. The Team's priorities include research-oriented responsibilities - like assessing the threats to frontier systems and developing novel attacks - and engineering-oriented ones, such as building infrastructure for running evaluations. In this role, you'll receive mentorship and coaching from your manager and the More ❯
SR2 | Socially Responsible Recruitment | Certified B Corporation™
ResearchEngineer – Foundation Models | London (On-site) We’re partnering with a stealth-mode deep tech AI lab based in London that’s building foundation models from the ground up . This isn’t fine-tuning or prompt engineering, it’s genuine model pre-training, post-training, and large-scale systems research. The company secured substantial funding in … s a rare opportunity to get in early at a company that will define its own category once it comes out of stealth next year. The Role As a ResearchEngineer, you’ll play a key role in designing, training, and evaluating large-scale models and distributed systems. You’ll work closely with experienced colleagues who have scaled … some of the world’s largest AI systems, helping to drive both the research and infrastructure that underpin next-generation foundation models. You’ll have a high degree of autonomy and ownership, contributing directly to experiments, training pipelines, and evaluation frameworks that will inform how the models evolve over time. What You’ll Work On Designing and developing large More ❯
AI ResearchEngineer – London (Onsite, Full-time) Competitive Salary + Bonus High-Performance Environment | Applied AI | Human + Machine Innovation We’re working with a high-performing global investment firm that’s building out its internal AI platform — applying cutting-edge large-language-model (LLM) technologies to real-world research and data challenges. They’re now looking … for an AI ResearchEngineer who can turn emerging AI ideas into working products. This is a hands-on, fast-paced role suited to someone who codes with intent, prototypes quickly, and loves exploring what’s next in the AI ecosystem. What You’ll Do Design, build, and maintain AI research infrastructure – custom LLM pipelines and tools. … Optimise LLM serving and inference for latency, reliability, and cost-to-intelligence. Prototype new approaches using Claude Code, Cursor, Windsurf, Copilot , or similar tools. Work directly with data and research teams to deploy models into production. Help shape the firm’s Human + Machine strategy, blending AI and human insight to drive performance. What We’re Looking For Strong More ❯
Lead AI ResearchEngineer Central London £90,000-£120,000 + benefits Hybrid (WeWork + Remote) This isn't just another AI job. It's the chance to build an AI Lab inside one of the UK's most forward-thinking global SaaS businesses. The Opportunity Imagine walking into a blank canvas - a brand-new R&D unit … and scale AI capability across a global product ecosystem that's already trusted by thousands of schools worldwide. This is exactly that. You'll be the founding Lead AI ResearchEngineer , working directly with the Global CTO to design, test, and embed AI solutions that redefine what's possible in education technology. You'll have full creative freedom … to experiment, prototype, and deliver impact. No rigid frameworks. No bureaucracy. No "wait for approval" culture. This is your playground - your AI Lab - to build real solutions that blend research, engineering, and imagination. What You'll Be Doing Build and scale the company's first AI R&D function from the ground up Design and deploy intelligent agents, models More ❯
Lead AI ResearchEngineer Location: Hybrid/London Salary: £90,000–£120,000 + benefits Be the driving force behind the next generation of AI in education. A rare opportunity to shape the future. We’re working with a global SaaS leader in education and workforce analytics, backed by major private equity investment and trusted by thousands of … schools worldwide. They’re now building a dedicated AI R&D function, and this is your chance to join as the founding Lead AI ResearchEngineer . If you’re looking for a role where you can explore, experiment, and deliver real impact at global scale, this is it. What you’ll be doing You’ll sit within … small, focused R&D team with a clear brief: build it, prove it, scale it . Working directly with the Global CTO and senior .NET engineering leaders, you’ll research, prototype, and deploy AI capability that will shape the company’s product ecosystem for years to come. You will: Identify high-impact opportunities to embed AI, ML, and agentic More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Machine Learning ResearchEngineer About Us We’re Unitary , a fast-growing AI startup building Virtual Agents that combine deterministic code, LLM reasoning, and human expertise to automate complex operational workflows. Our technology powers trust & safety systems at scale , analysing millions of images and videos daily for enterprise customers. Backed by Creandum and Plural , with over $25M raised … we’re scaling rapidly and shaping a future where AI can make safe, fair, and reliable decisions online. The Role We’re looking for a Machine Learning ResearchEngineer to pioneer how Virtual Agents are built, deployed, and scaled. You’ll design an “ Agent Factory ” — a system that can automatically generate agents from captured workflows, combining the speed … of code with the reasoning power of AI. Working closely with platform and ML teams, you’ll research, prototype, and productionise capabilities that let AI autonomously build reliable software workflows. What You’ll Do Design and build the Agent Factory to generate and deploy Virtual Agents Develop code-generation and evaluation frameworks for workflow automation Integrate LLM-based reasoning More ❯
Machine Learning ResearchEngineer About Us We’re Unitary , a fast-growing AI startup building Virtual Agents that combine deterministic code, LLM reasoning, and human expertise to automate complex operational workflows. Our technology powers trust & safety systems at scale , analysing millions of images and videos daily for enterprise customers. Backed by Creandum and Plural , with over $25M raised … we’re scaling rapidly and shaping a future where AI can make safe, fair, and reliable decisions online. The Role We’re looking for a Machine Learning ResearchEngineer to pioneer how Virtual Agents are built, deployed, and scaled. You’ll design an “ Agent Factory ” — a system that can automatically generate agents from captured workflows, combining the speed … of code with the reasoning power of AI. Working closely with platform and ML teams, you’ll research, prototype, and productionise capabilities that let AI autonomously build reliable software workflows. What You’ll Do Design and build the Agent Factory to generate and deploy Virtual Agents Develop code-generation and evaluation frameworks for workflow automation Integrate LLM-based reasoning More ❯
ResearchEngineer (Data Infra/ML) London (Hybrid) Can you build & optimize distributed ML pipelines with Ray or Spark? Do you love speeding up cloud infra (Kubernetes, Docker, CI/CD)? Excited to build the data backbone for large-scale ML training? We're a tier 1 VC-backed start-up, developing hyper-realistic 3D simulations using AI. More ❯
ResearchEngineer (Data Infra/ML) London (Hybrid) Can you build & optimize distributed ML pipelines with Ray or Spark? Do you love speeding up cloud infra (Kubernetes, Docker, CI/CD)? Excited to build the data backbone for large-scale ML training? We're a tier 1 VC-backed start-up, developing hyper-realistic 3D simulations using AI. More ❯
your work. Co-hire your future colleagues. Work closely with the founding team and contribute towards best practices, standards, and culture of the company. What we are looking for: Research engineering: 5+ years of industry experience in complex machine learning projects including data processing and training models in a distributed environment. LLMs: Deep understanding of LLM architectures, pre and … Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding ResearchEngineer” - make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays More ❯
your work. Co-hire your future colleagues. Work closely with the founding team and contribute towards best practices, standards, and culture of the company. What we are looking for: Research engineering: 5+ years of industry experience in complex machine learning projects including data processing and training models in a distributed environment. LLMs: Deep understanding of LLM architectures, pre and … Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding ResearchEngineer” - make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays More ❯
your work. Co-hire your future colleagues. Work closely with the founding team and contribute towards best practices, standards, and culture of the company. What we are looking for: Research engineering: Industry experience in complex machine learning projects including data processing and training models in a distributed environment. LLMs: Understanding of LLM architectures, pre and/or post-training … Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding ResearchEngineer” - make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays More ❯
your work. Co-hire your future colleagues. Work closely with the founding team and contribute towards best practices, standards, and culture of the company. What we are looking for: Research engineering: 2-3 years of industry experience in complex machine learning projects including data processing and training models in a distributed environment. LLMs: Strong understanding of LLM architectures, pre … Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding ResearchEngineer” - make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays More ❯
your work. Co-hire your future colleagues. Work closely with the founding team and contribute towards best practices, standards, and culture of the company. What we are looking for: Research engineering: 2-3 years of industry experience in complex machine learning projects including data processing and training models in a distributed environment. LLMs: Strong understanding of LLM architectures, pre … Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding ResearchEngineer” - make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays More ❯
top-tier investors, including Accel, Nvidia, Kleiner Perkins, Google and top founders and operators including Stripe, Datadog, Miro, Webflow, and Facebook. What you'll do at Synthesia: As a ResearchEngineer you will join a team of 40+ Researchers and Engineers within the R&D Department working on cutting edge challenges in the Generative AI space, with a … creating highly realistic, emotional and life-like Synthetic humans through text-to-video. Within the team you’ll have the opportunity to work on the applied side of our research efforts and directly impact our solutions that are used worldwide by over 55,000 businesses. If you are an expert in post-training Diffusion models for generative AI, this … the efficiency of diffusion models used in avatar generation. Analyze and address challenges related to model performance, ensuring high-quality output in avatar rendering. Stay updated with the latest research and advancements in diffusion models, adversarial networks and post-training optimization methods. What we're looking for: You have a background in Computer Vision/Computer Science and 3+ More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Synthesia
top-tier investors, including Accel, Nvidia, Kleiner Perkins, Google and top founders and operators including Stripe, Datadog, Miro, Webflow, and Facebook. What you'll do at Synthesia: As a ResearchEngineer you will join a team of 40+ Researchers and Engineers within the R&D Department working on cutting edge challenges in the Generative AI space, with a … creating highly realistic, emotional and life-like Synthetic humans through text-to-video. Within the team you’ll have the opportunity to work on the applied side of our research efforts and directly impact our solutions that are used worldwide by over 55,000 businesses. If you are an expert in post-training Diffusion models for generative AI, this … the efficiency of diffusion models used in avatar generation. Analyze and address challenges related to model performance, ensuring high-quality output in avatar rendering. Stay updated with the latest research and advancements in diffusion models, adversarial networks and post-training optimization methods. What we're looking for: You have a background in Computer Vision/Computer Science and 3+ More ❯
AI Engineer (PhD) – Series A Deep Tech AI Company About the Company: Our client is a cutting-edge deep tech start-up that’s redefining how enterprises leverage artificial intelligence to automate complex analytical workflows. Having completed a successful Series A funding round , they are rapidly scaling their technology and delivery teams to meet strong enterprise demand. Their mission … with intelligent AI-powered digital workers — autonomous systems that can perform advanced analytics, data science, and decision-making tasks continuously, accurately, and at scale. The Role: As an AI Engineer , you’ll be part of a world-class team building and deploying production-grade AI systems that redefine enterprise analytics. This is a high-impact, client-facing position where … points and architect high-impact AI-driven solutions. Build and deploy production-grade systems leveraging LLMs, RAG pipelines, multi-component AI programs (MCPs), and agent frameworks . Conduct applied research to solve novel, previously unseen problems — bringing cutting-edge innovation from concept to production. Contribute to internal research initiatives and thought leadership, shaping the evolution of AI automation More ❯
Role: Staff Software Engineer (Rust & AI Inference) Location: London (2–3 days a week onsite) Compensation: Up to £160,000 + equity We’re supporting an emerging deep tech company building high-performance infrastructure to support AI model deployment at scale. They’re focused on enabling enterprises to run advanced AI systems in production, with a strong emphasis on … privacy, performance, and full-stack control. This is a hands-on senior IC role for an engineer who thrives in low-latency, compute-intensive environments, and enjoys mentoring others. You’ll play a key role in shaping the core inference layer powering complex real-time AI workflows. If you're excited by the challenge of optimising distributed systems, designing More ❯
AI Engineer – Confidential Biomedical Intelligence Platform (London) Salary between £90,000 - £130,000 (depending on seniority) We’re representing a rapidly growing healthtech company headquartered in London with global reach, operating at the cutting edge of biomedical knowledge discovery. Their mission is to transform how researchers and clinicians access, interpret, and act on scientific and clinical data—accelerating breakthroughs … relationships, therapeutic insights, and patient stratification opportunities. They are now expanding their engineering team to scale this capability across new therapeutic areas and geographies. Role Overview As an AI Engineer, you’ll be embedded in a cross-functional team of researchers, data scientists, and product designers working to build intelligent systems that extract and reason over biomedical knowledge. You … focused on rapid iteration and continuous delivery Monitor model performance and validate against real-world benchmarks Contribute to internal tooling and infrastructure to support experimentation and deployment Publish original research and contribute to the broader ML/NLP community Technical Skills: Degree in Computer Science, Engineering, Bioinformatics, or related field (BSc, MSc, PhD) Experience with ML/NLP frameworks More ❯
AI Engineer – Confidential Biomedical Intelligence Platform (London) Salary between £90,000 - £130,000 (depending on seniority) We’re representing a rapidly growing healthtech company headquartered in London with global reach, operating at the cutting edge of biomedical knowledge discovery. Their mission is to transform how researchers and clinicians access, interpret, and act on scientific and clinical data—accelerating breakthroughs … relationships, therapeutic insights, and patient stratification opportunities. They are now expanding their engineering team to scale this capability across new therapeutic areas and geographies. Role Overview As an AI Engineer, you’ll be embedded in a cross-functional team of researchers, data scientists, and product designers working to build intelligent systems that extract and reason over biomedical knowledge. You … focused on rapid iteration and continuous delivery Monitor model performance and validate against real-world benchmarks Contribute to internal tooling and infrastructure to support experimentation and deployment Publish original research and contribute to the broader ML/NLP community Technical Skills: Degree in Computer Science, Engineering, Bioinformatics, or related field (BSc, MSc, PhD) Experience with ML/NLP frameworks More ❯
high-visibility projects - designing, building, and delivering intelligent solutions that solve real business problems at scale. What you’ll bring: PhD in a STEM field with demonstrated experience in research and development to solve complex, previously unseen problems. Hands-on experience building production-grade solutions using LLMs, RAGs, MCPs, and agentic workflows. Client-facing experience with a forward deployed … delivery skills: ability to translate complex business problems into scalable, intelligent AI solutions. What you’ll do: Tackle some of the most complex and exciting client problems, using your research skills to come up with innovative solutions. Collaborate with others to work on strategic research initiatives. Collaborate directly with top-tier enterprises to understand needs, design and deploy More ❯
high-visibility projects - designing, building, and delivering intelligent solutions that solve real business problems at scale. What you’ll bring: PhD in a STEM field with demonstrated experience in research and development to solve complex, previously unseen problems. Hands-on experience building production-grade solutions using LLMs, RAGs, MCPs, and agentic workflows. Client-facing experience with a forward deployed … delivery skills: ability to translate complex business problems into scalable, intelligent AI solutions. What you’ll do: Tackle some of the most complex and exciting client problems, using your research skills to come up with innovative solutions. Collaborate with others to work on strategic research initiatives. Collaborate directly with top-tier enterprises to understand needs, design and deploy More ❯
