Synthesia
Multimodal · AI video / synthetic avatars
Multimodal · AI video / synthetic avatars
Synthesia currently has 17 active AI-related job listings. The majority of these roles, 47%, are in the application stage. Engineering is the most frequent function, with 10 listings, followed by Research with 5. The company is hiring in the United Kingdom and the United States. Frequent tech tags include model_serving, multimodal, and inference_infra, suggesting a focus on deploying and optimizing multimodal AI models. Synthesia has posted 3 new AI roles in the last 30 days, a 62% decrease compared to the previous 30-day period.
Currently tracking 12 active AI roles, up 25% versus the prior 4 weeks. Primary focus: Ship · Engineering.
Synthesia currently has 20 active AI-related roles in our index. The most common open titles are: Application Security Engineering Manager, Commercial Data Scientist, Engineering Manager (Avatars), Infrastructure Engineer, Principal ML Platform Engineer. Most positions are in Engineering and Research.
Synthesia's active AI hiring is concentrated in: application (35%), post-training (20%), agents (15%). These categories follow a seven-stage AI lifecycle: data, pre-training, post-training, serving infrastructure, agents, evaluation, and application.
Synthesia is hiring AI talent in: United Kingdom (3 roles), United States (1 role).
Job postings at Synthesia most frequently reference: model serving, multimodal, agent orchestration, llm observability, inference infra.
In the past 30 days, Synthesia has posted 4 new AI-related roles.
| Title | Stage | AI score |
|---|---|---|
| Principal Research Engineer Synthesia is seeking a Principal Research Engineer to own the end-to-end technical direction for offline video generation, bridging pre-training and post-training stages. This role involves defining long-term strategy, resolving complex technical problems, and accelerating the delivery of research to product. The ideal candidate has a proven track record of training large-scale generative video models from scratch and extensive experience with post-training techniques. | PretrainPost-train | 9 |
| Staff Research Engineer - Video Post Training Staff Research Engineer role at Synthesia, a leading AI video platform, focusing on post-training generative video creation. The role involves applying and adapting foundational models, implementing optimization techniques, and ensuring high-quality output for synthetic humans. Requires expertise in diffusion models, computer vision, and Python. | Post-train | 9 |
| Senior Research Engineer - Video Foundation Models (Pre - Training) Research Engineer focused on pre-training foundation models for AI video generation, working on large-scale generative modeling, distributed systems, and production engineering. The role involves advancing training recipes, scaling distributed systems, improving evaluation frameworks, and optimizing inference for production deployment. | PretrainServe | 9 |
| Senior Research Engineer - Interactive Avatars Research Engineer focused on avatar-centric interactive video diffusion models, aiming to turn breakthrough ideas into real product capabilities. Responsibilities include adapting diffusion models, developing real-time streaming methods, working on the perceptual layer for user interaction, improving visual quality, and building evaluation frameworks. Requires strong ML/CV background, PyTorch proficiency, and Python engineering skills. | Post-trainServe | 9 |
| Product Designer, AI-Native Products (Senior/Staff-Level) Product Designer for AI-native video platform, focusing on conversational and AI-driven workflows for workforce development, localization, and skill learning. Role involves setting design vision, partnering with Product and Engineering, and shipping AI-native product surfaces. | ShipAgent | 8 |
| Product Manager, New Product Bet (Staff/Principal) Product Manager for a new AI video product focused on practice and proof of skill development, moving beyond content completion. The role involves owning the strategy for a domain within this 0-to-1 bet, defining success metrics, understanding customer needs, driving alignment, and balancing short-term delivery with long-term product health. Requires experience with agentic/AI-powered products and enterprise buying motions. | Agent | 8 |
| Staff Engineer, Machine Learning Staff Engineer, Machine Learning at Synthesia, a leading AI video platform. This role focuses on building and owning features for the new Interactive Agents product, a conversational video platform. Responsibilities include working directly with LLMs, prompt engineering, fine-tuning, and building ML infrastructure for agentic AI solutions. The role is end-to-end, involving ideation, product direction, and evaluating work using established data pipelines. Requires at least 7 years of experience, with 3+ at staff level, and experience in high-performing, scaled engineering teams building enterprise-grade SaaS products. | AgentServe | 8 |
| Senior Research Engineer - Audio Post-Training Research Engineer role focused on post-training optimization of generative speech and voice synthesis models to achieve production-level quality, speed, and robustness. Involves adapting models for new inputs, fine-tuning with advanced techniques (DPO, LoRA), implementing post-training optimizations (quantization, pruning, distillation), integrating novel architectures, and designing evaluation metrics for TTS systems. | Post-trainServe | 8 |
| Staff Backend Engineer, Voices Staff Backend Engineer focused on the core speech and voice generation experience for Synthesia's AI video platform. The role involves designing and delivering features across the script preview and voice orchestration stack, integrating with TTS providers, building recommendation systems, and ensuring voice output quality. Responsibilities include backend systems for TTS provider orchestration, frontend experiences for voice selection, and voice discovery/recommendation systems. The role emphasizes working on 0 to 1 problems, collaborating with product and AI teams, and shipping features end-to-end. | Post-trainServe | 7 |
| Application Security Engineering Manager Engineering Manager for Application Security team focused on building AI-native security tooling, embedding security into the development lifecycle at scale, and managing a team of senior engineers. The role requires technical depth in threat modeling, agentic security tooling, and application risk, alongside strategic ownership of AppSec strategy and scaling. | Agent | 7 |
| Group Product Manager Group Product Manager for Synthesia's AI video platform, focusing on creator experiences (editor, avatars, voice, generative). The role involves shaping product strategy, coaching a team of PMs, driving prioritization, and acting as a hands-on PM for any gaps. Requires experience managing PMs and shipping creative tooling or complex productivity tools. | Ship | 7 |
| Staff Backend Engineer, Avatars Staff Backend Engineer role focused on the core systems powering Avatars and Generative Media for Synthesia's AI video platform. The role involves system design, architecture, scalability, reliability, and integration with voice and video pipelines, ensuring avatars function as a first-class entity. It requires a long-term view, technical stewardship, and collaboration with product, R&D, and adjacent teams. | Ship | 7 |
| Staff Fullstack Engineer, Avatars Staff Fullstack Engineer role at Synthesia, an AI video platform company. The role focuses on building end-to-end product features in the Avatars and Generative Media domain, integrating frontend, backend, and AI model capabilities. Responsibilities include owning features from idea to production, working with both third-party and in-house AI models, and tackling 0 to 1 problems. Experience with AI/ML products, experimentation, or feature flagging is a plus. | Ship | 7 |
| Staff Software Engineer, Voices Staff Software Engineer focused on the core systems for Synthesia's AI video platform, specifically script preview and voice generation. The role involves building and operating backend services that orchestrate multiple TTS providers and in-house models, ensuring reliability, consistency, and quality. Responsibilities include designing persistence systems, improving voice data handling, and working on voice discovery/recommendation features, including evaluation and observability systems. The role requires strong backend engineering skills, a product mindset, and collaboration with R&D and frontend teams. | ShipServe | 7 |
| Principal ML Platform Engineer Principal ML Platform Engineer role focused on building and operating systems for training, serving, and deploying generative models reliably and efficiently. The role emphasizes infrastructure, backend systems, tooling, reliability, scalability, performance, and resource efficiency, with a growing focus on agent-oriented workflows. This is a hands-on IC role with significant ownership in shaping the ML platform's evolution. | ServeData | 7 |
| Engineering Manager (Avatars) Engineering Manager to lead the delivery of complex AI-powered video and generative media systems, focusing on avatar rendering and AI model integration. The role involves breaking down research initiatives, managing senior engineers, scaling the team, and ensuring system reliability and performance for an enterprise-grade SaaS product. | Ship | 7 |
| Senior Research Engineer - Data Synthesia is seeking a Senior Research Engineer focused on data to manage the lifecycle of data for AI researchers. This role involves sourcing, processing, and delivering datasets that power their generative AI models, with a focus on video, image, and audio data. The position is at the intersection of applied research, data engineering, and ML infrastructure, emphasizing data quality and curation to improve model performance. | Data | 7 |