Application Developer
About this job
iKnowHow Group is a dynamic, international technology company with 24+ years of experience and a team of 300+ talented professionals delivering innovative technology solutions across Energy, Telecommunications, Banking & Financial Services, and the Public Sector. Through its specialized subsidiaries, it brings domain expertise in areas such as Health and Robotics—blending deep industry knowledge with advanced, future-ready technologies. At its core, iKnowHow S.A. delivers end-to-end project development - both internal and client-facing - turning strategy into scalable, real-world solutions. Our portfolio spans Data & AI platforms, enterprise integration, cloud-native applications, and large-scale digital transformation initiatives, enabling leading organizations across the public and private sectors to evolve and grow. We are now looking for a talented Application Developer to work in new challenging outsourced projects and contribute to ongoing and upcoming projects, related to full-lifecycle development and maintenance of Banking Products. Responsibilities: • Develop, unit and ST testing API services, orchestration flows and integration adapters • Implement data-transformation templates and API payload handlers, contributing to CI/CD pipeline development and automated deployment scripts • Support environment provisioning and developer onboarding • Execute SIT and performance test automation scripts. • Resolve integration defects during SIT, NFRT, UAT and Hypercare phases • Provide Warranty-period on-call support and incident resolution for integration issues Requirements • Bachelor’s degree in Information Technology, Computer Science, Computer Engineering or any related field. • 3+ years software / application development experience • REST API service development & testing • Backend development (Java, Python or Node.js) • Data transformation & payload handling (JSON / XML) • Unit testing & automated test scripting • Integration platform / middleware development • CI/CD pipeline development (Jenkins, GitLab CI or similar) • Docker / containerization basics and Git (version control, branching strategies) • API Gateway integration patterns and Performance / load test scripting (JMeter, Gatling or similar) • Observability tooling (logging, APM basics) • Proficient verbal and written communication skills in English. • Strong collaborative spirit, sense of ownership, and accountability. • Completion of military obligations if applicable. Nice To Have: • Experience in core banking system integrations • DevSecOps / security-in-pipeline awareness Benefits • An attractive salary package • Private health insurance plan • Career development and growth opportunities • Continuous training via personalized seminars • An amazing private & open-office workspace in Athens #LI_Hybrid • Stable and enjoyable working environment