Source Job

Europe 5w PTO

  • Take ownership of the system design and architecture behind avatars, ensuring it remains scalable and reliable.
  • Design systems that support complex product requirements such as avatar versions and personalization.
  • Evolve systems that sit on a critical path for video generation, where reliability directly impacts the end-user experience.

Backend Systems System Design Data Modeling Scalability Architecture

7 jobs similar to Senior or Staff Software Engineer

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Europe 5w PTO

  • Work on core enterprise platform systems, focusing on backend services that ensure Synthesia is secure, reliable, and scalable.
  • Contribute to distributed backend systems and shared platform services, and be responsible for the safe and reliable operation.
  • Evaluate your work through system health and reliability metrics, leveraging observability and monitoring to ensure systems meet expectations.

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Following a recent Series E funding round where they raised $200 million, their valuation stands at $4 billion and their total funding exceeds $530 million.

Europe 5w PTO

  • Work on end-to-end product features across the Avatars and Generative Media domain.
  • Design and deliver features that combine frontend, backend, and AI model capabilities.
  • Take ownership of features from idea through to production.

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Following their recent Series E funding round, they raised $200 million, and their valuation stands at $4 billion.

Europe 5w PTO

  • Work on the core systems powering Synthesia’s script preview and voice generation experience.
  • Build and operate backend services that orchestrate multiple text-to-speech (TTS) providers.
  • Design and evolve systems that handle provider reliability, request routing, and output consistency.

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. They develop products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following their recent Series E funding round, Synthesia's valuation stands at $4 billion.

$164,000–$238,000/yr
US Canada

  • Architect, design, and evolve backend systems, platform services, and APIs using Python and related technologies.
  • Partner closely with data scientists and machine learning engineers to productionize AI/ML capabilities and integrate models into reliable backend infrastructure.
  • Design and scale distributed systems that process large volumes of data with strong performance, availability, and operational excellence.

Webflow is building the world’s leading AI-native Digital Experience Platform as a remote-first company. They empower teams to design, launch, and optimize for the web without barriers, from entrepreneurs to global enterprises.

$167,249–$216,000/yr
US

  • Own and deliver complex projects across the enrollment and early member journey.
  • Design and evolve scalable backend systems that power enrollment workflows.
  • Partner closely with product, design, data, and operations to identify high-impact opportunities.

Virta Health aims to reverse metabolic disease in one billion people through technology, personalized nutrition, and virtual care. They have raised over $350 million and partner with large health plans and employers.

Europe 5w PTO

  • Contribute to new Agentic AI Agents and manage the safe release to customers.
  • Address UXD, infrastructure, and machine learning challenges across the stack.
  • Own projects spanning months, breaking problems into iterative steps for delivery and validation.

They are the world’s leading AI video platform for business, used by over 90% of the Fortune 100. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development.

Europe

  • Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
  • Ensure high performance and reliability across our distributed systems.
  • Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.

Mistral AI democratizes AI through high-performance, optimized, open-source and cutting-edge models, products, and solutions, with a comprehensive AI platform designed to meet enterprise needs. They are a dynamic and collaborative team passionate about AI, with a diverse workforce thriving in competitive environments and committed to driving innovation; their teams are distributed between France, USA, UK, Germany, and Singapore.