ML/AI Platform Engineer

Benefits

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🚀 We're on a mission to make money work for everyone. We're waving goodbye to the complicated and confusing ways of traditional banking. After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as personal and business bank accounts, we offer joint accounts , accounts for 16-17 year olds , a free kids account and credit cards in the UK, with more exciting things to come beyond. Our UK customers can also save , invest and combine their pensions with us. With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers! We're not about selling products - we want to solve problems and change lives through Monzo ❤️ 📍London / UK Remote | £85,000 - £110,000 + Incentive Awards tied to your performance + Benefits About our Engineering Teams: We have around 600 engineers out of roughly 5,000 people in total - and we have big ambitions. There are many interesting challenges ahead, and we're happy for people to move between teams or to specialise, whatever you prefer. As an engineer here you'd be able to work directly with anyone across the company, and we run regular knowledge-sharing sessions so you'll learn heaps about everything from how banks work to effective communication. We contribute to open source software as much as possible. Our blog is a good place to learn even more about what we do. About Machine Learning Platform Engineering at Monzo: The Machine Learning Platform team builds the systems that help teams across Monzo train, evaluate, deploy and serve machine learning models and AI features safely and reliably. We work on backend services, Python libraries, model lifecycle tooling, evaluation workflows and low-latency serving systems. Our users are internal ML engineers, scientists and product teams building with ML and LLMs. The work matters because machine learning powers many important decisions and experiences at Monzo, from fraud checks and credit decisions to customer operations. We help teams move faster while keeping production systems reliable, observable and safe. This is a platform engineering role in the ML and AI space. We're looking for someone who combines strong software engineering foundations with ML or AI context, and who enjoys building tools and systems for other engineers. How we work 💻 Locations & Flexible Working: Our main tech hub is in London, but our engineers live everywhere in the UK- from Brighton to the Western Isles. We value meeting in person but there's no pressure to come into the office, even if you're nearby. We believe you'll do your best work if you are where you want to be. If you live outside of London and we ask you to come into the office, Monzo will support you with the costs. ✨ Our offices are naturally social, especially Tuesdays, Wednesdays and Thursdays, which happen to line up with our twice-weekly Monzo lunches & treat Thursdays 🍽️. Teams also schedule time together often for work and play - in or around the office, or online. Set up a work schedule that delivers impact and fits your life: At Monzo, we value connections, flexibility, and wellbeing. We keep our meetings during core hours to stay connected and believe in maintaining work/life balance. You'll be empowered to manage your work in a way that suits you and your team, giving you the freedom for children drop-offs and pick-ups, walking your dog or adventurous cat, avoiding peak commuting times or gym slots, appointments, or supporting your family in an emergency 🕣✨ If you prefer to work part-time, we'll make this happen whenever we can - whether this is to help you meet other commitments or strike a great work-life balance. What you'll be working with: We use a mix of backend, ML and infrastructure technologies. Please note direct experience with all of them is helpful but not required and our interview process can be completed in any language. Go for backend services, platform APIs and production systems Python for libraries, workflows and tooling used by ML engineers and scientists ML and AI platform systems such as model serving, evaluation, feature engineering, experiment workflows and LLM infrastructure Kubernetes, AWS, GCP, Terraform and Envoy Proxy to run reliable systems in production 🤩We'd love to hear from you if... You combine solid backend engineering with real ML or AI platform experience (ML pipelines, feature stores, model serving, experiment tracking or LLM tooling) You've designed and operated distributed systems that handle scale, concurrency and failure You think like a platform engineer, focused on developer experience and removing friction for internal teams You're happy working across both Go and Python You've worked with AWS or GCP, and with Kubernetes You enjoy ambiguity and want to shape a platform as it grows You have some experienc

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