Lead Node.js Developer / Tech Lead (Anti-Fraud System) – remote friendly (EMEA)

About the Company :

SmartCore is a fintech holding building infrastructure for the next generation of payments. Our solutions cover the entire financial operations cycle — from core banking and processing to cards, wallets, and anti-fraud systems.

Our product is a high-load, multi-component system that analyzes millions of transactions in real time, detects complex fraud schemes, and provides our clients with advanced risk management tools.

We operate at the intersection of Big Data , real-time processing , and complex business logic , where the cost of an error is measured in millions — and a few milliseconds of delay matter.

We are now looking for an experienced Technical Lead ready to take ownership of the architecture and development of core components of our anti-fraud platform and lead a team of engineers.

About the Project : Architectural Challenges

You’ll define the technical vision and lead the development of the core of our intelligent anti-fraud system, solving challenging engineering problems such as :

Real-time Scoring Engine :

• Design and scale a flexible rules engine that evaluates the risk of each transaction with a p99 latency of just a few milliseconds. This includes complex cascading checks — from digital fingerprinting to behavioral pattern analysis.

Asynchronous Monitoring & Alerting :

High-Performance Analytics :

Complex Data Models & Customer Profiling :

You will make architectural decisions that directly impact the security and financial efficiency of our clients’ businesses, under high load and strict fault-tolerance requirements.

Key Responsibilities

Our Ideal Candidate :

AI-Related Requirements (Critical)

We Offer

Feel free to apply directly via LinkedIn or by sending your CV to stanislav.pavlov[@]smartcore.pro — if you’re ready for serious architectural challenges and want to build a product you can be proud of!