Senior Software Engineer

We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy. We independently choose our technologies, processes, and ways of working while maintaining the highest professional standards.

We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. This allows our consultants to develop their competencies and gain experience aligned with their professional ambitions. Our collaboration is built around the CARE philosophy.

For us, it means responsible project matching, transparent cooperation, and a long-term approach to professional growth. Join us as Senior Software Engineer. In this role, you will design and scale backend microservices for the merchant payments domain, building core services for prepaid wallets, payment gateway integrations, invoicing, and reporting Grow in an environment that cares about your development as much as you do.

Your responsibilities Design and deliver backend microservices in the merchant payments and reporting domain, including prepaid wallets, invoicing, and SAP / payment gateway integrations. Migrate legacy services to Clean Architecture and Hexagonal Architecture , keeping domain logic framework-free and documenting choices via Architecture Decision Records. Build event-driven integrations over REST and Kafka with Avro, enforcing idempotency and money handling correctness.

Own full lifecycle deployment and quality