Full-Time

Senior/Staff Fullstack Engineer

Backend Leaning

Updated on 8/1/2026

Synthesia

Synthesia

501-1,000 employees

AI-driven video creation platform for enterprises

Compensation Overview

€130k/yr

+ RSUs

Remote in UK + 2 more

More locations: London, UK | Remote in Germany

Remote

Remote work is supported in the UK, Germany, Switzerland, and Ireland; other European locations may be supported subject to compliance and right-to-work checks.

Category
Software Engineering (2)
,
Required Skills
Python
React.js
Data Engineering
Web Development

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Requirements
  • At least seven (7) years of experience as a software engineer, including at least three years at the senior or lead level.
  • Experience working in a high-performing engineering team operating at scale, such as a scale-up or an established organization recognized for strong engineering culture.
  • Ability to work across the stack, with deep server-side and backend knowledge; backend-only experience is acceptable when willing to occasionally help with frontend work.
  • Relevant engineering experience building enterprise-grade software-as-a-service products, such as billing systems, experimentation platforms, video delivery systems, online editors, or real-time collaboration systems.
  • Strong alignment with commercial success.
Responsibilities
  • Contribute end-to-end to the React client application and Python monolithic backend, and manage the safe release of features to customers.
  • Own projects spanning multiple months by breaking problems into small steps that can be delivered and validated iteratively.
  • Work directly with the product manager to ideate and focus on the commercial problem being solved, while shaping product direction.
  • Evaluate work using the established data pipeline and frameworks to understand feature impact on commercial objectives and pivot where necessary.
  • Consider the team's long-term direction and develop engineering capabilities for challenges expected over the next 6–12 months.
Desired Qualifications
  • Previous leadership experience of smaller teams is a plus.

Synthesia is an AI-powered video generation platform that turns text into videos using realistic avatars, eliminating the need for cameras or actors. It operates on a B2B SaaS model with a library of avatars, support for 160+ languages, and features like templates, collaboration, and analytics. For enterprise customers, it offers custom avatars and voice cloning to keep brand consistency while emphasizing content governance and compliance. Its goal is to democratize video creation, grow globally, and develop conversational AI tools for interactive corporate learning.

Company Size

501-1,000

Company Stage

Series E

Total Funding

$549.8M

Headquarters

London, United Kingdom

Founded

2017

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Simplify Jobs

Simplify's Take

What believers are saying

  • Interactive AI avatars enable two-way training role plays, projected to grow enterprise contracts by 70% in 2026.
  • Hyper-realistic Express 2 avatars from single prompts reduce custom avatar creation time from 10 days to minutes.
  • Global office expansion in Austin, Berlin, Paris, and Zurich captures top EU markets, driving 140% net revenue retention.

What critics are saying

  • HeyGen's consent-free cloning and 60-80% cheaper pricing will displace 60-80% of new SMB users in 6-12 months.
  • EU mandatory synthetic media disclosure laws could freeze 40% of EU revenue within 12-24 months due to stricter rules.
  • US/EU AI Avatar Consent laws requiring voice/face licensing for all synthetic media could collapse 90% of core product in 18-36 months.

What makes Synthesia unique

  • Only platform blocking non-consensual deepfakes and scams while competitors generate them, proving enterprise trust.
  • First AI video platform with speak-to-set pronunciation in glossary, saving teams hours on single words.
  • Exclusive API-first engineering with interactive video agents for role-play training, enabling real-time employee Q&A.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

Stock Options

Hybrid Work Options

Paid Vacation

Paid Sick Leave

Parental Leave

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

-1%

2 year growth

-1%
The Business Model Analyst
Jul 17th, 2026
Google enters the AI avatar market its own VC arm funded.

Google enters the AI avatar market its own VC arm funded. Google Vids can now turn a selfie into a talking digital you. That puts Google head-to-head with Synthesia, a startup its own venture arm valued at $4 billion six months ago. On July 16, Google added personal AI avatars to Google Vids, letting anyone build a talking digital clone from a selfie and a voice clip. The feature drops Google straight into the enterprise AI video market led by Synthesia and HeyGen. The twist: Google Ventures led Synthesia's $4 billion round in January. There is a specific kind of awkward that happens when your landlord opens a shop next door selling exactly what you sell. That is roughly where Synthesia sits this week. What happened. Google announced that Google Vids, its AI video tool inside Google Workspace, now lets users create a custom digital avatar that looks and sounds like them, generated from an uploaded selfie and a voice recording. Google is also bringing Gemini Omni, its multi-modal model, into Vids, so users can build videos from a written prompt plus reference images, swap backgrounds, fix lighting, and make step-by-step edits without starting over. Google is putting guardrails on the avatar feature. Each avatar is tied to the account holder's likeness and Google account, watermarked invisibly with SynthID, and restricted to users aged 18 and up in select regions. That is a deliberate contrast to OpenAI's Sora, the deepfake-friendly video app that shut down in March 2026. The strategic read is simple. Vids started as an AI presentation helper bolted onto Workspace. With avatars and conversational editing, it becomes an all-in-one video platform, and it lands in the same market as HeyGen, Synthesia, Captions, and D-ID. The backstory. The AI avatar video category grew up fast and got expensive to compete in. Synthesia, founded in London in 2017, raised a $200 million Series E in January 2026 at a $4 billion valuation, nearly double its $2.1 billion mark a year earlier. It reports roughly $150 million in annual recurring revenue and says more than 90% of the Fortune 100 use its platform for training and internal communications. HeyGen took the opposite path. The Los Angeles company hit around $200 million in ARR while raising only about $74 million total, staying cash-flow break-even and carrying a modest $500 million valuation. Between them, the two independents built a category worth hundreds of millions in recurring revenue by charging businesses $29 to $299 a month for synthetic presenters. Here is the detail that makes this a business model story and not a product update. Google Ventures, Alphabet's venture arm, led Synthesia's $4 billion round. Google is now simultaneously an investor in the category leader and a direct competitor to it. The plan. Google is not trying to win this market by being the best avatar tool. It is trying to win it by being the default one. Synthesia and HeyGen have to sell their product one enterprise contract at a time. Google can switch a feature on inside Workspace, which already sits on the desktops of billions of users and a large share of the businesses these startups are chasing. The pitch writes itself: you already pay for Workspace, so why buy a separate seat at Synthesia when Vids makes the company update video for free. That is the classic platform-bundling playbook Google has run before, from Meet against Zoom to Workspace against Microsoft. It rarely produces the best standalone product. It reliably produces the one most people end up using because it is already there. The business model angle. Google does not make money selling Vids. Google makes money keeping you inside Google. Vids is a retention feature for Google Workspace, not a revenue line of its own, which means Google can afford to give away something Synthesia has to charge for to survive. When your core business is a $402.8 billion advertising and cloud machine, a video avatar tool is a moat-widener, not a P&L. That asymmetry is the whole threat. Synthesia's $4 billion valuation assumes it can keep charging enterprises premium prices for AI presenters. HeyGen's lean model assumes the same demand at a lower price. Google bundling a good-enough version into a subscription businesses already own attacks the price both models depend on. You do not have to beat a startup's product to damage its pricing power. You just have to make the category feel like a feature instead of a purchase. The counter-case, and it is real, is that enterprise buyers do not pick tools on price alone. Synthesia's value sits in 90%-of-the-Fortune-100 workflows, compliance, avatar libraries, and localization at scale, the boring integration depth that a bundled Workspace feature will not match for years. Google's history of shipping and then quietly abandoning products does not help its enterprise credibility either. Bundling pressures the low end of a market. It does not automatically capture the high end. The risk. The near-term risk is not that Google kills Synthesia. It is margin compression across the category. Once "make a talking avatar" is a checkbox in Workspace, the standalone tools have to justify their subscriptions on depth, quality, and trust rather than on access to the capability itself. That is a harder, lower-margin sale. For Google, the risk is reputational. Avatars are a deepfake vector, and the SynthID watermark plus likeness-locking is Google trying to avoid Sora's fate. If a Google-made avatar is misused at scale, the blast radius touches the whole Workspace brand, not just one app. And there is the genuinely strange governance question of Google competing with a company its own venture arm helped value at $4 billion. Alphabet has run investor-and-competitor conflicts before, but rarely this directly, and rarely this fast after writing the check. Quick questions. Is Google Vids free? Vids is part of Google Workspace, so it is bundled into existing Workspace subscriptions rather than sold separately. Access to the personal avatar feature is limited to users 18 and older in select regions. Does this kill Synthesia or HeyGen? Unlikely in the short term. Both have deep enterprise workflows Google will not match quickly. The bigger effect is pricing pressure as the basic avatar capability becomes a bundled feature rather than a standalone purchase. Why did Google invest in Synthesia and then compete with it? Google Ventures operates as a financial investor, and Alphabet frequently backs companies in markets its product teams also enter. It creates an obvious conflict, but it is a familiar pattern for large platform companies. What is Gemini Omni? Google's multi-modal AI model that turns text, images, and audio into video. Inside Vids it powers prompt-to-video generation, background swaps, lighting fixes, and step-by-step editing. The business model analyst take. The headline is "Google lets you star in AI videos." The real story is a platform owner deciding a $350-million-ARR category is worth absorbing as a free feature. That is the move that should worry Synthesia and HeyGen far more than any single product spec. This is the oldest pattern in Google's playbook, and one of the reasons it keeps showing up in its Google SWOT analysis under both strengths and antitrust threats. Google wins adjacent markets not by building the best tool but by making its version the one already installed. Distribution beats features when the feature is good enough, and "good enough" is a low bar for an internal company update video. The independents are not dead, but their pitch just got harder. "Buy our AI presenter" competes with "use the one you already have." The winners in this category will be the tools that are so deep in enterprise workflows that bundling cannot touch them, and the losers will be everyone selling a capability that Google just turned into a checkbox. Watch Synthesia's next enterprise renewal cycle. That is where you will see whether a $4 billion valuation survives its own lead investor becoming its competitor.

Synthesia
Mar 10th, 2026
Synthesia partners with Allied For Startups to strengthen Europe's innovation ecosystem

Synthesia partners with Allied For Startups to strengthen Europe's innovation ecosystem. March 10, 2026 Create AI videos with 240+ avatars in 160+ languages. BRUSSELS, March 10, 2026 - Allied For Startups and Synthesia are pleased to announce a new partnership. Together, they will work to strengthen Europe's startup and innovation ecosystem, ensuring startups and scaleups can access the regulatory clarity, talent, and infrastructure needed to grow and compete globally. Founded in 2017, Synthesia is the world's largest AI video platform for business. It was co-founded by Victor Riparbelli (CEO), Steffen Tjerrild (COO), Prof. Matt Niessner, and Prof. Lourdes Agapito, AI researchers and entrepreneurs from Stanford, UCL, and TU Munich. The company's mission is to help people work better. It empowers organizations to create AI-generated videos with 240+ avatars and in 140+ languages, streamlining training, onboarding, and communication while saving up to 80% of time and budget. It is trusted by over 65,000 companies worldwide, including more than 90% of CAC 40, DAX 40 and Fortune 100 companies such as Sky Italia, Heineken, SAP, Merck KGaA, and Siemens. Recently, Synthesia raised a $200 million Series E round, valuing the company at $4 billion, and marking a significant new chapter in its growth. The company will build on its AI video platform with enhanced visual communication tools, AI agents, and enterprise products designed to help organisations upskill their workforce and leverage AI effectively. Asked about the partnership, Alessandra Venier, Corporate Affairs Manager at Synthesia, said: "Europe has a strong tradition of combining world-class research with entrepreneurial ambition. At Synthesia, we are building technology that is used globally but grounded in European values. Partnering with Allied For Startups is important to us because we want to help ensure Europe remains a place where companies like ours can scale, compete globally, and engage constructively in policy conversations around AI and innovation." Serena Borbotti-Frison, Director-General of Allied For Startups, said: "Synthesia is a great example of what Europe can produce. Four founders, from Denmark, Spain, and Germany, bringing together global expertise and tapping into the strong UK ecosystem to build a truly world-class company. Just imagine what Europe could produce more regularly if the structural barriers were gone." Through this collaboration, Allied For Startups and Synthesia will work together to promote policies that support AI uptake, public procurement, skills and reducing regulatory fragmentation. About Allied For Startups. Allied For Startups is a global network of startup associations. Its mission is to empower innovation and support the growth of startups by building an environment where startups can thrive, scale, and make a real impact. Learn more at alliedforstartups.org About synthesia. 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 across Europe and the US. As AI continues to shape the way Synthesia Limited live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Learn more at synthesia.io Media contacts Alessandra Venier, Corporate Affairs Manager, [email protected] Head of Corporate Affairs and Policy Alexandru Voica Alexandru Voica is the Head of Corporate Affairs and Policy at Synthesia. He is an experienced communications professional with a successful track record in the technology, social media, internet, gaming, retail and consumer electronics markets. Alexandru has also worked as an engineer and graduated from Sant'Anna School of Advanced Studies with a degree in Virtual Reality for Enterprise Applications.

Tech in Asia
Jan 26th, 2026
Nvidia-backed Synthesia raises $200M to develop interactive AI avatars

Synthesia, an AI avatar startup backed by Nvidia, has raised $200 million to develop interactive AI avatars. The company is currently testing its new avatars with several customers, though pricing details have not yet been finalised. The funding will support the development of more advanced avatar technology that enables real-time interaction, moving beyond Synthesia's existing pre-recorded AI video generation capabilities.

Bloomberg L.P.
Jan 26th, 2026
Nvidia-backed Synthesia to launch interactive AI avatars for job recruitment and training

Synthesia, a London-based AI startup backed by Nvidia, is developing interactive audiovisual agents that can conduct conversations beyond pre-written scripts. The company, which creates digital human avatars for businesses, plans to deploy these conversational bots initially for sales training before expanding into recruiting and other corporate communications. Synthesia's existing software allows clients to convert written scripts into presentations featuring realistic video avatars. The new interactive agents represent an evolution beyond these scripted presentations, enabling the avatars to engage in dynamic conversations on specific topics. The development signals a shift towards AI-powered corporate communications, where job applicants and employees may increasingly interact with digital humans for interviews, training and onboarding processes.

Facebook
Oct 29th, 2025
Synthesia's Valuation Hits $4 Billion

London-based AI video generation startup Synthesia has completed a funding round, nearly doubling its valuation to $4 billion, according to three sources.