Head of Machine Learning

Department: Engineering & Data

Location: Ukraine, Warsaw, Remote, Nicosia

Employment Type: FullTime

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.

We’re building the #1 payment orchestrator in the world — and the names behind us prove it. Clients include Bolt, Ajax, Nova Post, MEGOGO. Trusted by giants like J.P. Morgan. Ranked #2 in the “Employer of the Year 2026” award by Forbes Ukraine.

About the Team and Role

This is the first dedicated ML leadership role at Solidgate — you won't inherit a function, you'll create one.

You'll stand up the ML/AI direction from scratch — the vision, the architecture, and the team — on top of 20M+ orders and 100M+ transactions a month. The next big step is a recommendation engine and a real-time system that decides which acquiring bank routes each transaction. That's the gap you're here to fill.

What You Will Own

— The vision, architecture, and roadmap for ML/AI at Solidgate — a true greenfield direction, not a maintenance handover

— Building and leading the team, combining new hires with engineers who already carry a deep payments context

— A real-time ML decisioning system with direct revenue impact

— A recommendation engine and other ML-driven features that lift merchant conversion and revenue

— Integrations of cutting-edge AI technologies to drive innovation

— Partnership with Product, Engineering, and the Data Platform team (who handle ML Ops) to solve hard modelling problems and build orchestrated training and analytics pipelines

— Clear communication of complex results to audiences from engineers to executives

Our Ideal Candidate

— 5+ years in ML

— Proven experience building and scaling an ML function — you've done founding-level work before, not just contributed to an existing one

— Strong data science fundamentals, a master's or PhD in a quantitative discipline

— Hands-on experience designing and running experiments, plus A/B testing and experimentation design

— Feature engineering on high-cardinality transactional data

— You take the lead proactively, from idea to production, and work fluently across a wide range of stakeholders

Why Become a Head of ML at Solidgate?

Founding role. You build the function, the team, and the standards, and your decisions shape the direction for years.

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 financial licenses in key regions and are a direct Visa & Mastercard partner and sub-reseller (top 5 globally).

Part of Endeavor. A global community of the world’s most impactful entrepreneurs.

Huge 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.

💌 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.