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Synthesia
Company insightsEmployer Score
Remote - Global
Last seen September 26, 2026
Posted September 9, 2026 · 17 days ago
Open 17 days. This role usually stays open about 40 days
Est. expiry October 14, 2026

Machine Learning Engineer / ML Engineer - Roleplay Sessions

Machine Learning Engineer
Remote - Global
RemoteGlobalFull-time, Senior
Estimated €14,105 - €19,075
At a glance

Senior ML engineer role building AI coaching engine for roleplay sessions.

Original job description

Synthesia Roleplay Sessions is a training tool that lets people practice real conversations with AI avatars. Instead of just watching training videos, learners do interactive roleplay exercises, like practicing a sales pitch or handling a customer complaint with an AI coach. The AI gives instant feedback so people know what they did well and what to improve. Managers can use a dashboard to track which employees have completed their training, see how well they performed, and measure if the training actually improved their skills. The whole platform is built around learning by doing rather than just passive video watching. For your ML engineer role, you'd be building the AI engine that makes the coaching work. That means creating the models that listen to what learners say during roleplay, score their performance, generate helpful feedback in real time, and decide how the AI avatar should respond next based on what the learner does. This is an applied ML position, not a research one. We expect you to have a good understanding of ML but on the other side to be a good product-focused software developer as you will be expected to work on different products.

The text above is the employer's original job description, extracted as written. Other details on this page, like salary, responsibilities, and requirements, are interpreted from that text by our system, not values the employer explicitly confirmed, so treat them as our best interpretation rather than verified facts.

Skills & Technologies
Machine LearningPythonPyTorchTensorFlowDistributed SystemsReal-time Inference
Benefits & Perks
How this salary compares
Estimated €14,105 - €19,075Est. take-home €7,887 - €10,319

Estimated from 3 comparable listings

33% above Senior level roles
€10,665€12,459 median€19,075
Responsibilities
  • Build the AI engine that powers the coaching in Roleplay Sessions
  • Create models that listen to what learners say during roleplay
  • Score learner performance
  • Generate real-time feedback
  • Determine how the AI avatar should respond next based on learner actions
Requirements
  • At least seven years of experience as a software engineer
  • at least 2 years at senior level
Recruitment Process
  1. Tech Recruiter Interview
  2. Delivery and Impact Interview
  3. Technical Rounds
  4. Final debrief
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Synthesia · 1 open roles
Top locations: London, United Kingdom · 15 · Remote - Europe · 14 · Remote - Global · 2+2 other locations
View company
Current open roles at Synthesia on JobCrawls
LocationActive listings
London, United Kingdom15
Remote - Europe14
Remote - Global2
UK Remote1
Austin, United States1
Current role mix at Synthesia on JobCrawls
Role typeActive listings
Product Designer3
Strategic Customer Success Manager2
Staff Research Engineer1
Product Manager1
Solutions Architect1
Application Security Engineer1
Engineering Manager1
Senior Brand Designer1
Frontend Engineer1
Research Engineer in Data1
Solutions Consultant1
Applied Research Engineer1
Machine Learning Engineer1
Current role-level mix at Synthesia on JobCrawls
Role levelActive listings
Senior11
Manager2
Mid-Level2
Expert1

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