Senior application developer (romano di lombardia)

Experteer OverviewIn this role you will provide critical application support and development for a key Milan-based client, ensuring stability and rapid incident resolution. You will serve as a trusted technical advisor to client stakeholders, collaborating with Numia teams to maintain service continuity. You will diagnose defects, support deployments, and drive continuous improvement of support processes. This position offers impact on a high-revenue client within a global payments leader and involves Italian and English communication and occasional out-of-hours work.
Retribuzione / Benefits
- Provide application development and production support for Numia-owned systems and integrations
- Act as first-line advisor for application incidents, analysis, and resolution during Italian business hours
- Participate in out-of-hours (OOH) support for critical production issues as required
- Diagnose and resolve application defects, performance issues, and integration failures
- Perform root cause analysis (RCA) and implement corrective and preventive actions
- Collaborate closely with Numia stakeholders, internal development teams, and infrastructure partners
- Support deployments, patches, and minor enhancements to ensure platform stability
- Ensure incidents and changes are managed in line with agreed SLAs and governance processes
- Maintain accurate technical documentation and incident records
- Contribute to continuous improvement of support processes and application resilience

Responsabilità
- Strong working knowledge of credit/debit card lifecycle, transactions, authorisations, clearing, settlement, and billing
- Hands‑on experience with mainframe technologies, including: CICS (online transaction processing), DB2 (data access and analysis)
- Ability to analyse xlwpduy and troubleshoot issues using mainframe utilities and tools, including Eazytrieve
- Experience supporting API‑based integrations between distributed systems and mainframe applications
- Solid understand