Machine Learning Engineer (Fully Remote)

April 4, 2022


The last two decades have seen an explosion in new payment services - from digital wallets, mobile payments, and open banking, to Buy Now Pay Later and crypto. Great for consumers! But, incredibly complex for merchants and developers. That’s where Primer comes in. Primer is the world's first automation platform for payments. With Primer, merchants and developers have all the underlying infrastructure and "lego blocks" they need to build the best buying experiences for their customers. Any developer can build a connection on Primer; merchants then simply 'click and connect' to the services they need to build their desired payment flows within their Primer dashboard. Since starting in January 2020, we've raised funding from top tier investors including Accel, Balderton and Iconiq. Our all-star team from across the world of payments and fintech includes ex Braintree-PayPal, Stripe, Checkout, Tink, Recurly, TrueLayer, Paddle, Plaid, Kount and more - come and join us! You Will... Design machine learning systems and pipelines for training and running machine learning models that improve the merchant authorisation ratesImprove the accuracy of our prediction models for payments outcomes, like whether a payment will be accepted or declined by the card network, or disputed as fraudulent by a cardholderBuild systems that can fully automate the creation of payment workflows using techniques such as partially observable Markov decision processes and reinforcement learningBuild unsupervised systems to detect anomalous behaviourPropose and implement ideas that directly increase Merchant authorisation rateImprove the way we evaluate and monitor our model and system performance We’re looking for someone who has... An advanced degree in a quantitative field (e.g. stats, physics, computer science) and some experience in software engineering in a production environment.Previous experience on developing AI models in real-world environments, MLOps, and integrating AI/ML, and other services, into large-scale production applicationsAbility to think strategically about business, product, and technical challengesDemonstrated ability to operate in a highly innovative and fast-paced environment It’s a bonus if you have... Past payments experienceExperience with Bayesian methods and Markov processesExperience with graphsThe way we work is different at Primer Our culture is about removing the roadblocks to doing your best work. We focus on taking initiative, letting the best ideas win, and valuing output over anything else. Underpinning all of this is our 'trust by default'. You’ll work remotely, wherever works best for you, have unlimited coworking access, unlimited time off, no company spending approvals, regular whole company retreats, team workations, and open access to people across the company. We find the best thinking and work come from removing limiting assumptions. So, one of our favourite approaches to solving problems is simply: If anything is possible, then what will you do? Our benefits: 100% remote working - work from anywhere you like, however you like 🌍Competitive share options 📈Unlimited holiday ✈️Co-working space access 🗣Team socials - quarterly workations, annual company retreats and virtual events 🥳Laptop, screens and accessories of your choosing! 🖥Additional £500 towards your home office setup 🪴Unlimited learning budget 🧠Medical insurance via SafetyWings 🩺Location-specific benefits - pension, 401k, health insurance etc.

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