Jobs in London

Sales Development Representative - French Speaker

This role involves generating and qualifying sales leads for Synthesia’s AI video platform through inbound and outbound activities, including cold calling, email campaigns, and social outreach. The candidate will work closely with marketing and sales teams to convert interest into opportunities, with a strong focus on French-speaking markets. Success requires fluency in French, proven B2B outreach experience, and comfort in a fast-paced, quota-driven environment.

Synthesia London, United Kingdom

On-site Permanent

Staff Research Engineer - Multimodal Generative Modelling

This role involves developing advanced multimodal generative models that integrate text, audio, and video for real-time, interactive AI conversations. The focus is on creating natural, emotionally expressive dialogue systems that go beyond turn-based interaction. Work includes designing novel architectures, training models end-to-end, and shipping optimized systems to production.

Synthesia London, United Kingdom

Remote Permanent

Solutions Consultant (French Speaking)

Act as a technical and commercial bridge between sales and customer success, leading discovery, solution design, and pilot execution to prove Synthesia’s value in enterprise workflows. Focus on translating business needs into AI-powered video solutions, driving technical validation, first-value delivery, and expansion. Work cross-functionally to shape repeatable use cases and improve product-market fit through customer insight.

Synthesia Paris, France, France

Hybrid Permanent

Social Media Lead

Lead the social media strategy for a leading AI video platform, shaping the narrative around AI, creativity, and the future of work. Own content distribution across LinkedIn, X, Instagram, TikTok, and YouTube, blending cultural insight with data to drive engagement. Collaborate with an in-house creative team to amplify high-impact content and define the brand's evolving voice in a pivotal technological moment.

Synthesia New York City, New York, United States

Hybrid Permanent

Manager, Scaled Customer Success - New York

Lead and develop a team of Customer Success Managers handling a high-volume portfolio across mid-market and emerging segments, driving product adoption and retention through scalable, data-driven engagement programs. Collaborate with Product, RevOps, and Enablement teams to design automated solutions and improve customer health at scale. Foster a culture of experimentation and commercial accountability within a fast-growing AI SaaS environment.

Synthesia New York City, New York, United States US$175,000 pa

Hybrid Permanent

Mid Market Account Executive

This role involves managing the full sales cycle for Synthesia's AI video platform within mid-market accounts (100–1,000 employees) across the US. The Account Executive will prospect, qualify, and close new business while expanding adoption across departments like HR, Learning & Development, and Marketing. Using MEDDPICC methodology, the role focuses on value-based selling and pipeline ownership within a high-growth SaaS environment.

Synthesia Austin, Texas, United States

Hybrid Permanent

Senior Research Engineer - Video Foundation Models (Pre - Training)

This role involves developing and scaling latent video diffusion models for human-centric video generation, with a focus on improving control, fidelity, and efficiency. The engineer will work on distributed training strategies, evaluation frameworks, and inference optimization to deliver production-grade foundation models. The position operates at the intersection of applied research and engineering, emphasizing real-world product impact over pure research.

Synthesia London, United Kingdom

Remote Permanent

Senior Research Engineer - Audio Post-Training

This role involves advancing high-quality, expressive synthetic voice generation through post-training optimization of speech models. The engineer will work on improving voice synthesis using techniques like DPO, LoRA, quantization, and novel architectures such as neural codecs and diffusion models. The position bridges research and production, focusing on real-time performance, robustness, and evaluation of TTS systems within a global AI video platform.

Synthesia London, United Kingdom £60,000 pa

Remote Permanent

Senior Research Engineer - Data

Build and enhance large-scale data pipelines for generative AI models using video and audio data. Collaborate with research and model training teams to curate high-quality datasets and extract features that improve model performance. Work on a human-centric data lake within a fast-moving AI research environment.

Synthesia London, United Kingdom

Remote Permanent

Senior/Staff Fullstack Engineer, Backend Leaning

This role involves end-to-end development on a high-impact AI video platform, working across a React frontend and Python monolith backend. Engineers lead long-term projects from ideation to deployment, collaborating closely with product managers and shaping product direction. The role emphasizes commercial impact, iterative delivery, and forward-looking engineering scalability within a fast-growing AI company.

Synthesia London, United Kingdom

Remote Permanent

Software Engineer (Principal level)

A Principal-level Software Engineer will lead backend architecture and cross-team initiatives across a 90+ engineer organization, driving stability, standardization, and long-term technical direction. The role involves solving inter-service challenges, influencing engineering practices, and working across the full stack from React frontend to Python backend, with a focus on scalable SaaS and AI-powered video systems. This position requires deep technical leadership and strategic impact in a high-growth AI company.

Synthesia London, United Kingdom

Hybrid Permanent

Senior Research Engineer - Interactive Avatars

This role involves developing advanced AI models for interactive avatars, focusing on video diffusion systems conditioned on audio, motion, and user interaction. The engineer will work on real-time, long-form generative video, improving lip-sync, motion realism, and contextual responsiveness. The position bridges cutting-edge research and product deployment within a global AI video platform.

Synthesia London, United Kingdom

Remote Permanent

Engineering Manager (Growth)

Lead a high-impact engineering team focused on user acquisition, activation, and revenue growth through rapid experimentation and optimization of self-service and freemium product pathways. Drive technical direction and team development while working closely with product and data to improve conversion and user experience at scale. Operate in a fast-paced, outcome-driven environment with direct influence on core business metrics.

Synthesia London, United Kingdom

Remote Permanent

Senior Brand Designer, Experiential

This role focuses on translating Synthesia’s brand into global experiential moments, including physical events, trade shows, and digital environments. The designer will lead end-to-end creation of spatial designs, event identities, and motion content, ensuring high production quality and brand consistency across physical and digital touchpoints. Collaboration with marketing teams and external vendors is key, with a strong emphasis on systems thinking and scalable design for global execution.

Synthesia United Kingdom

Remote Permanent

Strategic Account Executive (German Speaking)

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US.As AI continues to shape...

Synthesia Alba / Scotland

Remote Permanent