Application Developer
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Before you apply
LocationNea Ionia, Attica, Greece
Work modehybrid
Typefull-time
SeniorityMid
Experience3+ yrs
DepartmentiKnowHow
Company size201–500 people
PostedOct 22, 2026 · 1w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
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
Git (version control, branching strategies)
API Gateway integration patterns
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
Experience in core banking system integrations
DevSecOps / security-in-pipeline awareness
Completion of military obligations if applicable
Skills
REST API
Java
Python
Node.js
JSON
XML
Jenkins
GitLab CI
Docker
Git
API Gateway
JMeter
Gatling
Logging
APM
Benefits
Health insurance
Career development
Training
Hybrid work
About the company
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.
About the role
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