Matvei Barbashov

- Developed and deployed a payment system module in Kotlin/Spring Boot supporting SEPA and SWIFT transactions, ensuring compliance with international standards and high-load resilience. - Integrated REST APIs with external partners and payment providers (including Mastercard), enhancing data reliability and facilitating seamless onboarding of new services. - Automated core payment processes (SEPA clearing, SWIFT settlements), reducing manual operations and accelerating transaction throughput.

- Developed and maintained the core banking system – full-stack client–server applications using Java, React, Node.js, and OpenEdge, ensuring robust payment interfaces and scalable backend services. - Designed and implemented RESTful APIs and integration channels, reducing errors and improving interoperability with external systems. - Enhanced the payment processing workflow – including transaction routing, validation, and reconciliation – to accelerate handling and boost system efficiency.

- Architected and implemented backend services for the company’s mobile app, delivering core business logic and ensuring seamless user interactions. - Collaborated closely with mobile developers and UI/UX designers to align on feature requirements and deliverables, reducing rework and accelerating delivery. - Established and maintained CI pipelines for automated build and integration tests, improving release stability and cutting regression defects.