Synthesia interview, decoded.
Synthesia writes its engineering loop into every ad and says it can be done in two weeks: a recruiter call, an hour on what you have delivered, a practical round with one of its engineers, a system design discussion built on problems it has had in production, and a leadership retrospective. The practical round is the one to prepare for. For backend and ML roles it is called the Work Scenario round, 75 to 90 minutes of hands-on problem solving that the ads describe as not LeetCode style, with AI-assisted coding welcome.
Synthesia makes AI video with realistic avatars and voices, used by 90% of the Fortune 100. It was founded in London in 2017 and raised a $200M Series E led by GV at a $4B valuation in January 2026.
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The questions for your exact Synthesia role and level.
Interviewing at Synthesia? Below are the questions candidates report. For the ones your exact role and level will get, paste the posting. Your first mock is free.
Who Synthesia hires
Different tracks, one barSynthesia's open engineering roles are senior. Research and development hires research engineers for video generation, interactive avatars, multimodal models and data, and an ML platform engineer, mostly remote across Europe. Engineering hires a principal or staff software engineer in Seattle, a machine learning engineer for its Roleplay Sessions product, and security and engineering management roles. Most European roles can be in the London office or remote from the UK, Germany, Switzerland or Ireland, and are employment only, usually through OysterHR.
The ads describe the same five steps for most engineering roles; the practical round changes shape with the job.
Track · SWE & ML
Software and ML engineering
Recruiter, the delivery and impact interview, then the Work Scenario round for backend and ML roles or a live coding round for the staff software engineer, both collaborative and AI-assisted, then system design and the leadership retrospective. Glassdoor reports from ML engineers describe an earlier format: an eight-hour timed take-home on a cloud GPU Synthesia provided.
Track · Frontend
Frontend engineering
Recruiter, 45 minutes with the head of the team on your past projects, a 75-minute exercise where you are handed a real Figma section spec and work out with an engineer how to model and build it, then leadership.
Track · Leadership
Engineering management
Five calls with senior engineering stakeholders: people management, technical leadership, programme management, cross-functional strategy and leadership, over two to three weeks.
What is the Synthesia interview process?
Round by roundThe stages below are Synthesia's own, from its engineering ads published between August and September 2026. Glassdoor candidates report about three weeks on average, and describe take-homes that the current ads have replaced with live rounds, so check the format with your recruiter.
Your technical background, previous experience and what you are looking for next, plus where you would work: London, remote in a handful of European countries, or Seattle for the US role.
A deep dive into your past projects: what you shipped, the impact, and how you work.
Hands-on problem solving, not LeetCode style. It is a collaboration exercise, and AI-assisted coding is welcome. The staff software engineer ad calls the same slot a live coding interview; frontend candidates get a real Figma spec to model and build.
Real architectural problems Synthesia has faced in production. For a company that renders video from text at scale, expect generation queues, GPU capacity and long-running jobs to be fair ground.
Examples of collaboration and growth. Your future manager or the VP of Engineering also outlines the role and what is ahead.
Synthesia's side only; it ends in an offer or the end of the process.
What Synthesia screens for
What every round is really testingThe loop itself says what Synthesia values: delivery you can show, working with others on a real problem, and fluency with AI tools.
- Delivery and impact you can walk through in detail
- Collaboration during the problem, with an engineer beside you
- Using AI tools well, openly allowed in the practical round
- Product focus: the ML role is described as applied, for a product developer
- Senior ownership: most open roles are staff, principal or senior
Synthesia interview questions
Drawn from the job adsCandidates have not published Synthesia's Work Scenario problems. The questions below come from what the ads say each stage covers.
Behavioural & motivation
- Walk me through a project you delivered: the impact, and how you worked with others to get there.
- Tell me about a time you grew as an engineer, and what changed in how you work.
- Give an example of collaborating across teams on something that was hard to agree on.
- Why Synthesia?
Technical
- Practical problem solving: A real task worked through with an engineer, with AI-assisted coding
- Production system design: Architectural problems Synthesia has had in production
- Applied ML for a product: For Roleplay Sessions: scoring what a learner says, generating feedback in real time, deciding the avatar's next move
- Video and data at scale: Research roles work with more than a million hours of video and audio
- Frontend from a design spec: Modelling and building a real Figma section with an engineer
These come from the job ads, and your loop is role-specific. Paste the actual posting and Calibrd predicts the questions for that exact role and level.
Predict my Synthesia questions →Pay
What the offer looks likeLevels.fyi puts the median software engineer package at Synthesia in Greater London at £109K, with the highest reported at about £196K, read through search results on 23 September 2026. The ads that state pay give a floor: the principal or staff software engineer in Seattle starts at $200K base, and the senior engineering manager in Europe at 180,000 in euros, pounds or Swiss francs, each with stock options. Everyone gets 25 days of leave plus local holidays. Calibrd benchmarks the pay on any posting you scan against its level and location.
How to prepare for a Synthesia interview
In order- 01Pick two projects you delivered and prepare them to the level of detail an hour-long deep dive needs: the problem, what you built, the impact, what you would change.
- 02Practise solving a practical problem with someone watching and an AI assistant open. The round welcomes AI coding, so show how you use it: prompts, checking its output, knowing when to write it yourself.
- 03Think through a video generation system before the design round: requests queued, GPU capacity, jobs that take minutes, failures and retries, delivering the result.
- 04Frontend engineers: take a real design file and practise turning one section into components out loud.
- 05Ask the recruiter whether your role still has a take-home. Older reports describe an eight-hour one on a cloud GPU.
This guide covers Synthesia's software, machine learning and research engineering loops. Commercial and marketing roles run a different process. For management and leadership roles the loop is similar but the bar shifts to people, delivery and strategy, so pair it with the leadership interview prep hub. The bar for your exact role comes from the role-by-role guides, and the prep that actually transfers is spoken, so run a mock interview before the real one.
Knowing the questions isn’t the same as answering them out loud. Run a Synthesia mock: spoken answers, coached on the spot. Your first mock is free.
Run a Synthesia mock →FAQ & sources
The short answersWhat is Synthesia's interview process?
The stages below are Synthesia's own, from its engineering ads published between August and September 2026. Glassdoor candidates report about three weeks on average, and describe take-homes that the current ads have replaced with live rounds, so check the format with your recruiter. Tech recruiter interview: Your technical background, previous experience and what you are looking for next, plus where you would work: London, remote in a handful of European countries, or Seattle for the US role. Delivery and impact interview: A deep dive into your past projects: what you shipped, the impact, and how you work. Work Scenario round: Hands-on problem solving, not LeetCode style. It is a collaboration exercise, and AI-assisted coding is welcome. The staff software engineer ad calls the same slot a live coding interview; frontend candidates get a real Figma spec to model and build. System design discussion: Real architectural problems Synthesia has faced in production. For a company that renders video from text at scale, expect generation queues, GPU capacity and long-running jobs to be fair ground. Leadership retrospective: Examples of collaboration and growth. Your future manager or the VP of Engineering also outlines the role and what is ahead. Debrief: Synthesia's side only; it ends in an offer or the end of the process.
What does Synthesia look for in candidates?
The loop itself says what Synthesia values: delivery you can show, working with others on a real problem, and fluency with AI tools. Delivery and impact you can walk through in detail Collaboration during the problem, with an engineer beside you Using AI tools well, openly allowed in the practical round Product focus: the ML role is described as applied, for a product developer Senior ownership: most open roles are staff, principal or senior
What questions does Synthesia ask in interviews?
Candidates have not published Synthesia's Work Scenario problems. The questions below come from what the ads say each stage covers. Walk me through a project you delivered: the impact, and how you worked with others to get there. Tell me about a time you grew as an engineer, and what changed in how you work. Give an example of collaborating across teams on something that was hard to agree on. Why Synthesia? Practical problem solving Production system design Applied ML for a product Video and data at scale Frontend from a design spec
How do I prepare for a Synthesia interview?
Pick two projects you delivered and prepare them to the level of detail an hour-long deep dive needs: the problem, what you built, the impact, what you would change. Practise solving a practical problem with someone watching and an AI assistant open. The round welcomes AI coding, so show how you use it: prompts, checking its output, knowing when to write it yourself. Think through a video generation system before the design round: requests queued, GPU capacity, jobs that take minutes, failures and retries, delivering the result. Frontend engineers: take a real design file and practise turning one section into components out loud. Ask the recruiter whether your role still has a take-home. Older reports describe an eight-hour one on a cloud GPU.
- 01Synthesia careers, Machine Learning Engineer, Roleplay Sessionsthe loop (recruiter 30 to 40 minutes, delivery and impact 60, the Work Scenario round 75 to 90 minutes 'not Leetcode style' with AI-assisted coding welcome, system design 60, leadership retrospective 60), two weeks, and the role; published 9 September 2026
- 02Synthesia careers, Principal/Staff Software Engineer (Seattle)the same loop with a 75-minute live coding interview, and the $200K base floor plus stock options; published 27 August 2026
- 03Synthesia careers, Senior Frontend Engineer, Marketing Websitethe frontend loop and the 75-minute exercise on a real Figma section spec; read 23 September 2026
- 04Synthesia careers, Senior Engineering Manager, Growththe five leadership calls, two to three weeks, the 180,000 base floor, the European locations and 25 days of leave; read 23 September 2026
- 05Glassdoor, Synthesia machine learning engineer interviewsthe eight-hour timed take-home on a cloud GPU provided by Synthesia, from an earlier version of the loop; read through search snippets
- 06Synthesia job board52 open roles on 23 September 2026, about 11 in engineering and research, most of them senior
- 07Levels.fyi, Synthesia software engineer, Greater Londonthe £109K median and about £196K at the top, read through search results on 23 September 2026
- 08CNBC, Nvidia and Alphabet VC arms back Synthesia at $4 billionthe $200M Series E led by GV on 26 January 2026, up from $2.1B in January 2025
- 09Synthesia, Series E announcement90% of the Fortune 100 as customers and the employee secondary sale
Interview processes change. This reflects widely-reported and sourced conditions as of 2026 — confirm specifics with your recruiter, and treat it as a map rather than a guarantee.
Prep for a real Synthesia role
Practise your Synthesia interview, out loud.
Paste a real Synthesia posting and Calibrd predicts the questions for that role and level, benchmarks the pay, and flags the gaps an interviewer will probe in your CV — then listens to your spoken answers and coaches them. Your first mock is free.
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