Integration Support Engineer

Are you excited about working with cutting-edge systems and APIs?

Do you want to contribute to projects where your ideas for process improvements can make an immediate impact?

Are you eager to gain experience that will prepare you for your next career step, such as becoming an Associate Solutions Architect?

ManpowerGroup Greece, on behalf of our client, a pioneering global leader in AI-powered financial technology solutions, is looking for a highly motivated Integration Support Engineer to join a dynamic and fast-growing team.

Location: Athens - Northern Suburbs

Working Model: Hybrid working model (3 days office-based, 2 day remote)

Reporting to: Team Leader

What you will do:

As an Integration Support Engineer (ISE), you will play a key role in ensuring smooth collaboration between systems. You will assess operational changes from third-party platforms, understand their technical impact, and design effective rollout strategies. Taking ownership of project readiness for System Integration Testing, you will work closely with a Solutions Architect, gaining hands-on experience in building robust, scalable integrations. This position also offers clear career progression, with the opportunity to grow into an Associate Solutions Architect role, expanding your responsibilities and impact on complex projects.

Your main responsibilities will be:

• Evaluating and managing change requests across platform upgrades, protocol migrations, and topology adjustments, quantifying technical impact and rollback risk, defining mitigation strategies, and securing a jointly endorsed rollout plan with internal and external stakeholders, while consulting the Solution Architect for any solution modifications.
• Compiling and communicating configuration and development prerequisites that third-party systems must meet for System Integration Testing readiness, collaborating directly with their owners
• Executing a concise suite of HTTP-based API smoke tests (REST, SOAP, RPC, etc.), troubleshooting anomalies, and escalating unresolved issues to third-party counterparts and the Solution Architect
• Drafting IAT test cases for developers to execute, guided by the Solution Architect
• Maintaining full traceability by keeping Jira and Confluence records updated for change requests and SIT preparations
• Driving continuous improvement by transforming lessons learned into reusable templates for change-request assessments, SIT readiness checklists, and smoke-test scripts, ensuring future integrations follow streamlined, standardized practices

• Degree in Computer Science or other relevant disciplines
• 1–3 years of experience in system integration, API testing, technical support, or QA
• Strong understanding of REST and SOAP protocols, HTTP, and JSON/XML
• Ηands-on experience using Postman, SoapUI
• Comfortable with network fundamentals, including IPs, ports, TLS, and credential management
• Fluent in written and spoken Greek & English, enabling clear communication with international stakeholders.

Will be highly appreciated:

• Εxposure to banking APIs, telecom OCS/charging interfaces

• Basic SQL or scripting for quick data checks

• Experience with Jira, Confluence, or comparable tracking/documentation tools

• Experience in linux, bash scripting etc.

• Competitive compensation package aligned with your skills and experience
• Extra day off to celebrate your birthday
• Performance-based bonus scheme
• Private health insurance for your peace of mind
• Top-notch tech equipment to help you work smarter
• Continuous learning with access to premium training platforms
• On-site open space restaurant with a variety of daily meal options
• Wellbeing programs to support a healthy work-life balance

Recruitment Process:

• If you're interested in this role, feel free to apply directly. Our consultants will contact the candidates who meet the profile's requirements to arrange an interview.

• As for the next step, there will be 2 more interview round with the Hiring Manager

For any questions regarding this opportunity, please contact directly (Dimitris Papadopoulos) to the following email:

You can always check all our IT/Technology Roles here: IT Jobs | ManpowerGroup Greece - )

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