Senior Machine Learning Engineer

About Moon PayHi, we're Moon Pay.
We're here to onboard the world to the decentralized economy by making digital money move as universally and effortlessly as the internet.
Moon Pay is a unified payments platform for digital currency.
We make it easy for anyone, anywhere, to buy, sell, swap and pay in digital currencies as easy as sending an email.
Our focus is reducing complexity so people can participate confidently, without needing to be crypto experts.
We power the end-to-end flow between fiat and crypto, with compliance, identity checks, fraud prevention, and settlement built in.
We are fully licensed in the U. S. and regulated across the UK, EU, Canada, and Australia.
We are growing rapidly and continuously iterating to improve our product.
Moon Pay is backed by a mission to build systems that benefit everyone and to advance financial freedom and autonomy.
USA Salary Range 191,737$
- 235,214$ /yearAbout The OpportunityIn this role, you will design, build, and deploy machine learning systems to detect and prevent fraudulent activity across our crypto products, helping protect our customers and platform in real time.
You will join the Machine Learning team and collaborate closely with Product, Data, Engineering, and Operations to deliver high-impact ML solutions end-to-end.
Your work will directly improve fraud detection, strengthen customer trust, and influence key business metrics.
This role is well suited to someone who enjoys owning problems end-to-end, thrives in fast-paced environments, and is motivated by solving complex, high-stakes challenges with real-world impact.
What You Will DoBuild and deploy machine learning models to evaluate transactions and customer behaviour in real-time and batch environmentsDevelop and iterate on fraud detection models through hypothesis-driven experimentation across multiple productsOwn the full ML lifecycle from feature engineering and model development through to deployment, monitoring, and continuous improvementDesign and build features from large-scale datasets, including real-time feature generationApply advanced modelling techniques (e.
G. gradient boosting, deep learning) and take them to productionCollaborate cross-functionally to ship models and ensure they deliver measurable impactImprove ML infrastructure through pipelines, automation, and internal toolingMonitor and evolve models to ensure reliability, performance, and robustness over timeAbout YouMust have experience and skillsProven track record of building, deploying, and maintaining machine learning models in production, ideally in fraud, payments, or other risk-focused domainsAbility to frame problems, develop hypotheses, and iterate on models through structured experimentationStrong understanding of the end-to-end ML lifecycle, including monitoring and iteration in productionExperience designing and operating real-time or high-throughput data systems (e.
G. Apache Beam, Apache Spark, Big Query, or similar)Strong problem-solving skills and ability to operate autonomously in a fast-moving environmentNice To Have ExperienceFamiliarity with modern ML infrastructure and orchestration tools (e.
G. Kubeflow, Airflow, Vertex AI or similar)Experience with cloud platforms (GCP, AWS, or Azure) and distributed systemsBackground in time series data, adversarial modelling, or counterfactual analysisBonus pointsExperience with deep learning frameworks (e.
G. Py Torch)Contributions to ML tooling, internal platforms, or open-source projectsBenefits & PerksCompetitive salary packageEquity package: We believe financial freedom starts with our employees, so all employees have ownership at Moon PayPay for performance equity bonus: Those who drive outsized outcomes receive outsized rewardsMoonshot award: We honor exceptional impact
- 10 employees twice a year, each earning a $250,000 equity grantUnlimited holidays: We give you the autonomy to choose when to workHybrid working schedule: Work fully remotely or your nearest Moonbase, the choice is yoursPrivate Healthcare

benefits:
To protect you and your loved onesEnhanced parental leave: So you can spend more time with your loved ones without a second thoughtAnnual training budget: We support your training journey every step of the wayHome office setup allowance: Create the home office of your dreamsRemote working allowance: Those working fully remotely get a little extra for utilitiesMonthly budget to spend on our products and zero fee crypto transactions: Cultivate your inner DEGENEmployee referral programme: Great people know great people, refer them to receive 10 K in USDCRegular remote company offsites: Meet your colleagues regularly for high impact in person sessions and hackathonsWorking in a disruptive and fast-growing company where excellence is rewardedCommitment To DiversityAt Moon Pay we believe that every voice matters.
We strive to create a mindful and respectful environment where everyone can bring their authentic s