Senior ML Engineer

Posted 14 Hours Ago
Be an Early Applicant
27 Locations
Remote
Senior level
Payments • Financial Services
The Role
Build Solidgate’s ML/AI function from the ground up, developing real-time payment routing models and production pipelines. Own the full ML lifecycle from experimentation and A/B testing through deployment, while solving modeling challenges involving large-scale transactional data. Partner with Product, Engineering, and Data Platform teams to deliver measurable improvements in conversion, approval rates, losses, and revenue.
Summary Generated by Built In
Our Mission and Vision

At Solidgate, our mission is clear: to empower outstanding entrepreneurs to build exceptional internet companies. We exist to fuel the builders — the ones shaping the digital economy — with the financial infrastructure they deserve. To achieve that, we’re on a bold path: to become the #1 payments orchestration platform in the world.

We believe the future of payments is shaped by people who think big, take ownership, and bring curiosity and drive to everything they do. That’s exactly the kind of teammates we want on board.

We're building the #1 payment orchestrator in the world — and the names behind us prove it. Our clients include Bolt, Ajax, Nova Post, Megogo and we're a direct partner of Visa and Mastercard with a European acquiring license. Operating in 150+ markets, with a trusting partners like J.P. Morgan.
Solidgate is part of Endeavor — a global community of the world’s most impactful entrepreneurs. We’re proud to be the first payment orchestrator from Europe to join — and to share our expertise within a network of outstanding global companies.

About the Team and Role

This is a foundational hire on ML/AI direction at Solidgate — you'll be one of the first engineers building the function from the ground up, working closely with the ML team to shape it.
You'll help stand up the ML/AI direction from scratch — on top of 20M+ orders and 100M+ transactions a month. The next big step is a realtime ML payment routing. That's the space you'll be building in.

Explore our technology stack ➡️ here.

What you’ll own


— Design and build core ML models and pipelines as part of a true greenfield direction, not a maintenance handover
— A real-time ML decisioning system with direct revenue impact
— Hands-on experimentation — from idea, through A/B testing, to production
— Integrations of cutting-edge AI technologies to drive innovation
— Close partnership with Product, Engineering, and the Data Platform team (who will help with data and MLOps) to solve hard modelling problems and build orchestrated training and analytics pipelines
— Clear communication of technical results to both engineers and cross-functional stakeholders

You’re a great fit if you have


— 4-5+ years in ML or Data Science, with hands-on production experience in classical predictive models (e.g. credit scoring, fraud, risk, recommendations, pricing)
— Track record of shipping ML models end-to-end, from idea to production, in a real product environment and being able to show their business impact in numbers (conversion, approval rate, losses, revenue)
— Strong data science fundamentals
— Hands-on experience with A/B testing and experimentation design
— Feature engineering on high-cardinality transactional data

— A driver mindset: you can walk into a greenfield space, figure out what to build, propose it, and own it through delivery
— Great communication skills and comfort working with a wide range of stakeholders

Nice to have


— Experience in fintech, payments, fraud, or risk
— Real-time / low-latency ML serving
— A master's or PhD in a quantitative discipline

Why Solidgate?

Founding direction. You'll help build the function, the team, and the standards from day one, working alongside the Head of ML

Great product. We’ve built a fintech powerhouse that scales fast. Solidgate isn’t just an orchestration player — it’s the financial infrastructure for modern Internet businesses. From subscriptions to chargeback management, fraud prevention, and indirect tax — we’ve got it covered. We hold EMI licence and are a direct Visa & Mastercard partner and sub-reseller.

Impact you can measure. Every prediction has a clear outcome — approved or declined — which makes payments one of the few domains where ML ROI is provable per transaction.

Scale. You'll work with 20M+ orders and 100M+ transactions monthly, 100+ payment methods and providers.

Top-tier tech team. You'll lead and learn alongside engineers who hold the bar high and ship at fintech scale.

Work from anywhere. Fully remote, no relocation required. We also have offices in Poland, Cyprus, and Ukraine.

💌 The Extras: 30+ days off, unlimited sick leave, free office meals, health coverage, and Apple gear to keep you productive. Courses, conferences, sports and wellness benefits — all designed for ideas, focus, and fun.

Tomorrow’s fintech needs your mindset. Come build it with us.

🫂 Know top talent? We’re always on the lookout. Refer someone for our role, and if they get hired, there’s a bonus waiting for you — simple as that.

Skills Required

  • 4-5+ years of experience in machine learning or data science
  • Hands-on production experience with classical predictive models, such as credit scoring, fraud, risk, recommendations, or pricing models
  • Experience shipping machine learning models end-to-end from ideation to production in a real product environment
  • Ability to demonstrate measurable business impact from machine learning models
  • Strong data science fundamentals
  • Hands-on experience with A/B testing and experimentation design
  • Experience with feature engineering on high-cardinality transactional data
  • Ability to work independently in greenfield environments and own delivery
  • Strong communication skills and ability to work with cross-functional stakeholders
  • Experience in fintech, payments, fraud, or risk
  • Experience with real-time or low-latency machine learning serving
  • Master’s or PhD in a quantitative discipline
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The Company
HQ: Nicosia
170 Employees
Year Founded: 2016

What We Do

At Solidgate we make international online payments simple with no hidden fees. We provide internet businesses with client-oriented payment gateway services, which are tailored to their business needs. We offer a possibility to accept credit and debit card payments from buyers anywhere in the world. We will help you establish a secure environment with our advanced AntiFraud system, which is specifically designed to help businesses detect and prevent fraud. We offer everything you need to enable secure payment processing and optimal checkout experience. Simple and flexible integration allows you to integrate once and benefit from a continuously improving, cutting-edge platform to meet your business needs however they might change. Our robust API enables businesses to avoid complex integrations and offers a complete payments portfolio under one infrastructure. Our reporting and analytics tool will help your manage payments, analyze your customer and transaction data and in turn make the right decisions for your business.

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