Senior Machine Learning Engineer

👋 About Us

Synthesized is transforming how the world tests software with AI.

Trusted by global leaders like Deutsche Bank, UBS, and the European Commission, our AI-powered platform enables teams to generate high-quality test data and test cases in seconds—slashing costs, accelerating delivery, and eliminating reliance on production data.

We're a VC-backed company supported by top investors. With strong traction across financial services, healthtech, and telecom, and a $90B+ market in sight, we're scaling fast in 2025 and beyond.

🔍 The Role

As a Senior Machine Learning Engineer at Synthesized, you will work alongside machine learning and statistics researchers from top UK universities, as well as world-class software engineers. You will be responsible for developing advanced machine learning techniques and applying them at scale across our projects. Regular interaction with customers will be a key part of your role.

You should be driven by a desire to tackle the most important challenges and achieve groundbreaking results, rather than producing “yet another paper.” You should be eager to push your architectures to their maximum potential, rather than settling for toy tasks or proofs of concept.

📋 Key Responsibilities

• Develop new and improved methods for generative modelling, unsupervised learning and meta-learning.
• Run machine learning tests and experiments
• Perform statistical analysis and fine-tuning using test results
• Extend existing ML libraries and frameworks

🌱 About You

• Good knowledge of probability, statistics and algorithms
• 3+ years of experience in creating high-performance implementations of machine learning algorithms
• Good knowledge of data structures, data modelling and software architecture
• Proficiency with machine learning frameworks (like Keras or Tensorflow) and libraries (like scikit-learn)
• Past experience in developing data software products (optional)
• Track record of coming up with new ideas in machine learning, as demonstrated by one or more publications or projects (optional)

✨ What We Offer

• Wonderful office in the heart of Shoreditch, hybrid 3-days 🏢
• Generous cash compensation and share options 💰
• Flexible work hours ⏰
• Personal development budget (coaching, courses, events) 📚
• Competitive health and dental plan coverage ⚕️
• 32 days paid leave per year including flexible national holidays 🌴
• Snacks and drinks provided weekly 🍏
• Working alongside great people in a friendly and respectful environment 🙋🏾‍♀️
• Company events, regular team socials, and international trips ✈️

🌎 Equal Opportunities

We are committed to an inclusive and diverse workplace at Synthesized. Synthesized is an equal opportunity employer. We do not discriminate based on race, ethnicity, color, ancestry, national origin, religion, sex, sexual orientation, gender identity, age, disability, veteran status, genetic information, marital status or any other legally protected status.