Senior Java Developer

emerchantpay is a leading global payment service provider and acquirer for online, mobile, in-store and over the phone payments. Our global payments solution is available through a simple integration, offering a diverse range of features, including global acquiring, global and local payment methods, advanced fraud management and performance optimisation. We empower businesses to design seamless and engaging payment experiences for their consumers.

We are looking for enthusiastic and experienced Java developers for one of our payment processing products that we are modernizing.

The role combines hands-on engineering with modern, AI-assisted development practices. You will build and scale highly available payment services, using AI coding agents and tooling as part of your daily workflow while keeping the quality, security and reliability that payments demand.

Responsibilities

•      Designing and implementing complex workflows, APIs, and UI backends for payment platforms;

•      Performing TDD using various tools like JUnit;

•      Taking part in scaling highly available payment services (99.99%+ uptime);

•      Using AI coding assistants and agents (e.g. Claude Code, Kiro, GitHub Copilot) for implementation, refactoring, test generation, code review and legacy code exploration, and o