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Senior ML Engineer

SolidgateWarsawEngineering & Data
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Senior · 4+ yrs
Posted
9 Oct 2026
Status
Open · checked 7d ago

About this role

Solidgate is hiring a Senior ML Engineer to establish the machine learning direction remotely in Europe for professionals with a strong background in data science and production modeling. This foundational role suits an experienced engineer who wants to build systems from the ground up within the financial technology sector.

Role Overview

Solidgate is seeking a Senior ML Engineer to join the team as an early foundational hire to shape the machine learning function from the ground up. Operating remotely in Europe, the professional will work with high-volume transactional data to develop real-time payment routing and decisioning systems. This greenfield initiative involves designing core models, conducting hands-on experimentation, and collaborating across engineering and product departments.

Key Responsibilities

Design and construct core machine learning models and pipelines for a greenfield initiative
Build a real-time machine learning decisioning system with direct revenue impact
Conduct hands-on experimentation covering the entire lifecycle from ideation and A/B testing to production
Integrate artificial intelligence technologies to encourage innovation
Partner closely with product, engineering, and data platform teams to solve modeling challenges and construct orchestrated training and analytics pipelines
Communicate technical results clearly to both engineering peers and cross-functional stakeholders

Requirements

Possess 4 to 5+ years of experience in machine learning or data science with practical production experience in classical predictive models such as credit scoring, fraud, risk, recommendations, and pricing
Demonstrate a track record of shipping machine learning models end-to-end in a real product environment with measurable business impact in numbers
Exhibit strong data science fundamentals
Bring hands-on experience with A/B testing and experimentation design
Perform feature engineering on high-cardinality transactional data
Demonstrate a driver mindset to autonomously identify, propose, and own initiatives through delivery
Maintain strong communication skills and comfort collaborating with diverse stakeholders

Nice to Have

Experience working in fintech, payments, fraud, or risk
Background in real-time or low-latency machine learning serving
Holding a Master's degree or PhD in a quantitative discipline

Skills and Tools

Classical predictive models
A/B testing and experimentation design
Feature engineering
Real-time ML decisioning systems
High-cardinality transactional data processing

Salary and Benefits

Fully remote work arrangement with no relocation required, alongside optional offices in Poland, Cyprus, and Ukraine
Over 30 days off and unlimited sick leave
Free office meals and health coverage
Apple equipment provided
Support for courses, conferences, sports, and wellness benefits

About the Company

Solidgate provides financial infrastructure and aims to become a leading payments orchestration platform globally. The company operates in more than 150 markets, processes over 20 million orders and 100 million transactions monthly, and partners with major entities like Visa, Mastercard, and J.P. Morgan. Solidgate is also a member of Endeavor, a global community of impactful entrepreneurs.

How to Apply

Candidates should apply directly on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the primary focus of the Senior ML Engineer role at Solidgate?

The role focuses on building the machine learning function from scratch, designing core models, and developing a real-time machine learning decisioning system for payment routing.

Where is the position located?

The position is fully remote in Europe, with optional offices available in Poland, Cyprus, and Ukraine.

How many years of experience are required for this position?

Candidates must have 4 to 5+ years of experience in machine learning or data science with hands-on production experience in classical predictive models.

What scale of data will the engineer work with?

The engineer will work with operations involving over 20 million orders and 100 million transactions per month.

What benefits and perks are included with the role?

Benefits include over 30 days off, unlimited sick leave, health coverage, free office meals, Apple gear, and allowances for courses, conferences, sports, and wellness.

Ready to apply?

The application is on the official Solidgate careers page.

Apply on company site