Jobs in London

Software Engineer (Principal level)

A Principal-level Software Engineer will lead backend architecture and stability initiatives across a large engineering organization, driving cross-team projects and long-term technical strategy. The role involves solving systemic challenges in a high-scale SaaS environment, working across React and Python monolith systems, and aligning engineering outcomes with commercial goals. Unique exposure to in-house AI research and enterprise-grade video generation technology provides a distinctive technical context.

Synthesia London, United Kingdom

Hybrid Permanent

Principal Research Engineer

Lead end-to-end technical development of large-scale generative video models, spanning pre-training and post-training stages, with direct impact on product. Bridge research and engineering to accelerate the deployment of cutting-edge avatar video generation. Focus on building high-resolution, long-form human-centric video models using proprietary data pipelines and distributed training infrastructure.

Synthesia London, United Kingdom

Remote Permanent

Client Success Director

The Client Success Director ensures banks successfully adopt and scale Thought Machine's cloud-native core banking platform, driving delivery outcomes, client satisfaction, and long-term value. This role leads governance, manages cross-functional teams, and oversees platform stability and commercial performance throughout multi-year engagements. It requires deep expertise in banking transformation and strong leadership in complex, regulated environments.

Thought Machine New York City, New York, United States

Hybrid Permanent

Snr Scientist II / Principal Scientist, In Vivo Biology & Translational Science

Lead the design, execution, and interpretation of in vivo pharmacology studies to support drug discovery programmes, primarily in osteoporosis but extending across indications. Partner with CROs to deliver preclinical data, integrate in vitro and ex vivo assays, and translate biological insights into project decisions within a multidisciplinary TechBio environment.

Relation Therapeutics London, United Kingdom

On-site Permanent

Data Scientist – Computational Genomics, 12-month

This role involves applying and developing machine learning and statistical models to analyse large-scale genomics, transcriptomics, and multi-omics datasets for target identification and validation in drug discovery. The Data Scientist will work at the intersection of computational genomics and ML, integrating human genetics data with functional omics to uncover disease mechanisms. Collaboration with experimental and machine learning teams is central, with an emphasis on reproducible workflows, hypothesis validation, and clear communication of insights.

Relation Therapeutics London, United Kingdom

On-site Permanent

Full Stack Engineer

Builds full-stack features for cloud-native banking technology, owning requirements from design to deployment. Works across frontend (React/TypeScript) and backend services, focusing on security, scalability, and client-customisable experiences. Collaborates in cross-functional teams to deliver high-impact solutions for global financial institutions.

Thought Machine London, United Kingdom

Hybrid Permanent

Data Science - Manager

Lead a team of data scientists who deliver experimental and observational analysis to accelerate the development of Wayve’s end-to-end AI for autonomous vehicles. Drive evals and insights from real and simulated driving data, enabling engineering teams to rapidly iterate and meet customer commitments. Scale impact through people, tooling, and automation in a fast-paced, innovative environment.

Wayve London, United Kingdom

Senior Embedded Software Test Engineer, Onboard Test Automation

Design and execute automated tests for onboard software subsystems on embedded platforms, focusing on OS, middleware, sensors, and integration points. Work within hardware-in-the-loop environments to debug cross-layer issues and expand test coverage. Contribute to CI pipelines and reusable test frameworks to enable developer self-service testing and accelerate development cycles.

Wayve London, United Kingdom

Expression of Interest: Next-generation Agentic Controls and Forensics (Technical Roles)

This role involves developing technical frameworks for agentic incident response, controls, and forensics in advanced AI systems. You'll work on scalable approaches to monitor, detect, and respond to risks from next-generation AI agents, leveraging pre-release access to frontier models and compute resources. The position offers high autonomy, collaboration with global AI experts, and direct influence on AI governance and security policy.

AI Security Institute London, United Kingdom £65,000 – £145,000 pa

Principal Data Scientist

A Principal Data Scientist will lead high-impact machine learning initiatives within the Defence sector, driving technical strategy and client delivery. The role involves scoping complex AI solutions, writing production-grade code, mentoring junior scientists, and supporting technical sales. Work includes on-site collaboration with government clients and shaping ethical, cutting-edge AI applications in high-stakes environments.

Faculty London, United Kingdom

Hybrid Permanent

Principal Machine Learning Engineer

This role involves leading the design and implementation of scalable, high-impact machine learning systems within complex enterprise and government environments, particularly in the defence sector. The Principal Machine Learning Engineer will act as a technical authority, shaping architectural direction, solving cross-project challenges, and mentoring engineering teams. Work includes strategic innovation, system integration, and hands-on technical leadership in ethical, real-world AI applications.

Faculty London, United Kingdom

Hybrid Permanent

Account Director, Large Enterprise | Life Sciences

This role involves managing key enterprise retail accounts and driving the adoption of AI solutions across customer experience, supply chain, and operations. The Account Director will act as a strategic advisor, working closely with technical teams to design and execute complex deployments while shaping product strategy through market insights. Success requires deep industry expertise, executive engagement, and a long-term vision for AI transformation in the retail sector.

OpenAI London, United Kingdom

Hybrid Permanent

AI Solutions Architect

Design and deliver enterprise-scale AI solutions from concept to deployment in a regulated financial environment. Translate business needs into secure, governed architectures using Microsoft's AI ecosystem. Collaborate across technology, data, security, and business teams to drive AI innovation and compliance.

Huxley Associates London, United Kingdom £110,000 – £135,000 pa

Software Engineer

As a full-stack Software Engineer, you will work on end-to-end feature development using Python and Svelte/jQuery, collaborate closely with Product and QA, and contribute to the direction of the product. The role offers a high-impact environment with a growing, award-winning team that values quality, collaboration, and product thinking.

Vermillion Analytics London, United Kingdom £45,000 – £65,000 pa

Hybrid Permanent

PCBA Product Engineer – AI Hardware

This role involves driving the industrialisation of high-performance AI accelerator PCBAs from prototype to mass production, ensuring manufacturability, yield, and quality. The engineer will work hands-on with Taiwan-based manufacturing partners, lead DFM/DFT reviews, resolve real-time production issues, and build scalable processes for high-layer-count, fine-pitch boards used in advanced AI hardware. Success is measured by smooth NPI transitions, high first-pass yield, and robust design-for-manufacturing practices.

Fractile United Kingdom