Head of ML
Solidgate · Remote · Warsaw
Job description
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, including time as a Lead ML Engineer
— 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.
ML/AI Work links you to the employer's original posting — always verify the details there before applying.
More MLOps and Platform roles
View all →MLOps Engineer
Coventry Building Society · Manchester, GB
Forward Deployed Engineer
Databricks · Southend-on-Sea, GB
Principal Network Engineer - AI Infrastructure
CVS Health · Remote · Baltimore
Principal Software Engineer (AI)
Future Secure AI · Brisbane, AU
Principal Software Engineer (AI)
Future Secure AI · Adelaide, AU
Principal Software Engineer (AI)
Future Secure AI · Canberra, AU