Latest Synthesia Jobs

Spotlight

Senior Machine Learning Scientist

This role involves developing and deploying custom machine learning and LLM-powered systems for customer feedback analysis, including fine-tuning, retrieval, summarisation, and agentic workflows. The scientist will lead experimentation, evaluation, and productionisation of models while mentoring team members and integrating cutting-edge AI research into real-world applications.

Chattermill London, United Kingdom

Remote Permanent

Spotlight

ML Runtime Engineer (Mid-Level and Senior)

This role involves developing and optimizing the runtime stack for AI accelerators, focusing on integrating with open-source ML frameworks like PyTorch and vLLM. The engineer will work closely with hardware and software teams using a co-design approach to enable high-performance inference for large language models. Key responsibilities include building a high-performance runtime in Rust and supporting inference server integrations.

Fractile London, United Kingdom

Hybrid Permanent

Product Manager, Analytics

This role involves owning the end-to-end analytics product for enterprise learning and development, focusing on individual learner progress, programme-level reporting, and leadership views. You will work closely with the engineering manager, designer, and customer-facing teams to define the product roadmap, gather customer insights, and ensure the analytics product is trusted and actionable.

Synthesia London, United Kingdom

Hybrid Permanent

Staff Fullstack Engineer, Avatars

This role involves developing end-to-end product features for Synthesia’s Avatars and Generative Media domain, combining frontend, backend, and AI model capabilities. You will take ownership of features from idea to production, working closely with product and design to iterate and refine solutions based on user feedback.

Synthesia London, United Kingdom

Remote Permanent

Sr. Applied Scientist, Alexa International

As a Senior Applied Scientist, you will develop novel algorithms and modeling techniques to advance multilingual speech generation and text-to-speech synthesis for Alexa's global products. You will collaborate with cross-functional teams to optimize model performance, align research priorities with customer needs, and drive scientific strategy for speech quality across international locales.

Amazon London, United Kingdom

On-site Permanent

Applied Science Manager, Alexa International

This role involves leading a team of applied scientists to develop and enhance multilingual speech generation and voice personality for Alexa. Responsibilities include managing scientific strategy, collaborating with cross-functional teams, and driving research and productization efforts across 20+ languages.

Amazon London, United Kingdom

On-site Permanent

Engineering Manager - Runtime Team

PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our customers, which include the world’s leading logos,...

PolyAI London, United Kingdom

Applied AI Researcher - World Reconstruction and Generation

As an Applied AI Researcher, you will develop and adapt deep learning methods for world reconstruction, novel view synthesis, and neural rendering. You will work with a team of researchers to turn cutting-edge research into robust technology, focusing on improving the realism and controllability of generated scenes.

NVIDIA Germany

Remote Permanent

Applied AI Researcher - World Reconstruction and Generation

As an Applied AI Researcher, you will develop and adapt deep learning methods for world reconstruction, novel view synthesis, and neural rendering. You will work with a team of researchers to prototype solutions, improve scene realism, and build evaluation workflows, contributing to cutting-edge AI technology.

NVIDIA

Remote Permanent

Quant Pod Hiring Multiple Macro Researchers / Paris / London - Base Sign On

This role involves developing systematic trading models and alpha strategies across various financial markets, including FX, commodities, fixed income, and equities. You will work on back-testing, improving existing strategies, and evaluating new datasets to enhance the team's investment process and research infrastructure.

eFinancialCareers London, United Kingdom

On-site Permanent

Associate

As an Associate, you will work closely with financial services stakeholders to scope, build, and deliver impactful AI projects. Your responsibilities include managing work streams, conducting open-source analysis, translating operational requirements into user stories, and collaborating with technical teams to ensure successful project delivery and client satisfaction.

Faculty AI London, United Kingdom

Hybrid Permanent

Translational Scientist (DMPK & Safety)

The Translational Scientist (DMPK & Safety) will bridge AI-driven drug predictions with clinical reality, working closely with pharmacology, tech, curation, and clinical teams. Key responsibilities include designing and overseeing DMPK and safety studies, interpreting data, and shaping the non-clinical path to the clinic.

Healx Cambridge, United Kingdom

Hybrid Permanent

Data Scientist, Fleet Operations

This role involves using operational research, causal inference, and experimental design to extract actionable insights from complex fleet data, improving the efficiency and strategy of on-road testing for autonomous driving systems. The data scientist will develop performance metrics, optimise testing feedback loops, and guide decision-making across product and company levels. Emphasis is placed on practical optimisation over black-box modelling, with close collaboration across engineering and operations teams.

Wayve London, United Kingdom

Hybrid Permanent

Senior Product Designer

As a Senior Product Designer, you will lead the design of user-centred solutions for a platform focused on the clean energy revolution. Your responsibilities include conducting user research, creating high-impact interfaces, evolving design systems, and mentoring team members. You will work closely with cross-functional teams to drive meaningful design improvements and strategic decisions.

Faculty AI London, United Kingdom

Hybrid Permanent

Chemistry Lead (Induced Proximity), London

As a Chemistry Lead in the Induced Proximity team, you will develop and apply a state-of-the-art platform to tackle traditionally intractable drug discovery problems. You will collaborate with AI/ML and Drug Design teams to drive projects towards clinical trials, focusing on innovative molecular glue design and synthesis.

Isomorphic Labs United Kingdom

Hybrid Permanent

CMC Project Lead (Next Generation Biologics and ADCs), London

Lead the CMC strategy for next-generation biologics and Antibody-Drug Conjugates (ADCs), driving end-to-end technical development from AI-designed candidates to clinical manufacturing. Oversee complex biologics processing, conjugation chemistry, and regulatory filings while managing global CMOs and ensuring compliance with cGMP and global health authority standards.

Isomorphic Labs London, United Kingdom

Hybrid Permanent

Senior Product Designer - Defence

This role involves leading the end-to-end design of AI-native, human-centred products for high-stakes defence applications. You'll conduct user research, develop accessible and intuitive interfaces, and evolve design systems in close collaboration with machine learning and engineering teams. The work focuses on delivering ethical, reliable AI solutions that support national security and global stability.

Faculty London, United Kingdom

Hybrid Permanent Clearance Required