As a Senior Software Engineer, you’ll design and develop backend systems, services, and portals for our high-performance payment processing platforms. You’ll work with modern engineering practices such as Behaviour-Driven Development (BDD), Continuous Integration/Continuous Deployment (CI/CD), and automation at scale.

You’ll collaborate across teams to deliver robust, scalable solutions - sometimes working independently, sometimes in larger groups - with a focus on building quality in from the start and solving real business challenges.

Key Responsibilities

• Understand user needs and deliver innovative, high-quality software solutions that create value for merchants and partners.
• Improve development processes, tooling, and automation to enhance productivity and software quality.
• Collaborate with other engineers to ensure technical accuracy and timely delivery.
• Contribute to planning and estimation, communicating progress clearly and adapting to shifting priorities when needed.
• Support software deployment activities from requirements analysis through to production release.
• Act as a team player and technical role model — sharing knowledge, mentoring peers, and supporting an ethical, collaborative work culture.

About You

• Experience: 6–8+ years in software engineering roles.
• Education: Bachelor’s or Master’s degree in Computer Science or a related field.

• Technical Expertise:
• Strong OO design, design patterns, and refactoring skills.
• Server-side product development with Java (J2EE).
• Experience with J2EE application servers (preferably JBoss).
• Secure web applications (PCI-DSS experience is a plus).
• Database design & development (MySQL 8 / InnoDB preferred) and familiarity with NoSQL solutions (e.g., BigQuery).
• REST API design & implementation (JAX-RS, RESTEasy, OpenAPI, Swagger).
• Building scalable, fault-tolerant systems (load balancing concepts).
• Multi-threaded and concurrent programming.
• CI/CD pipelines, test and deploy automation.

• Nice to Have:
• Pub/Sub, WebSocket integrations, clustered caching (Infinispan), JGroups, CDI, Liquibase, Ansible.
• Strong problem-solving, communication, and organisational skills.
• Self-motivated and able to work well under pressure in a fast-moving environment.