Senior application developer

Ph3Overview /h3pExperteer OverviewbrAs a Senior Application Developer for a strategic Milan client, you provide development and production support to ensure stable, secure services and quick incident resolution. You act as a technical point of contact, coordinating with client stakeholders and internal teams to maintain continuity and meet service SLAs. You will handle production issues, RCA, and continuous improvements in a fast-paced, payment-focused environment. This role offers scale and direct impact on a key revenue stream within a global fintech leader. /ph3Benefits /h3ulliProvide development and production support for Numia-owned systems and integrations /liliServe as first-line advisor for incidents during Italian business hours with optional out-of-hours coverage /liliDiagnose and resolve defects, performance and integration issues /liliConduct root cause analysis and implement corrective actions /liliCollaborate with Numia stakeholders, internal dev teams, and infrastructure partners /liliAssist deployments, patches, and minor enhancements to ensure platform stability /liliManage incidents and changes per SLAs and governance; maintain technical docs and incident records /liliContribute to continuous improvement of support processes and application resilience /li /ulh3Responsibilities /h3ulliStrong knowledge of credit/debit card lifecycle, transactions, authorisations, clearing, settlement, and billing /liliHands-on mainframe experience with CICS and DB2 /liliAbility to troubleshoot with mainframe tools including Eazytrieve /liliExperience with API-based integrations between distributed systems and mainframe apps /liliProven production support, incident triage, RCA, and escalation in 24/7 environments /liliExperience with client-facing payment systems and time-critical incidents /liliFluent Italian and English (spoken and written) /liliWillingness to participate in out-of-hours support as part of a rota /li /ulh3Requisiti fondamentali /h3ulliStrong knowledge of credit/debit card lifecycle, transactions, authorisations, clearing, settlement, and billing /liliHands-on mainframe experience with CICS and DB2 /liliAbility to troubleshoot with mainframe tools including Eazytrieve /liliExperience with API-based integrations between distributed systems and mainframe apps /liliProven production support, incident triage, RCA, and escalation in 24/7 environments /liliExperience with client-facing payment systems and time-critical incidents /liliFluent Italian and English (spoken and written) /liliWillingness to participate in out-of-hours support as part of a rota /li /ul /p #J-18808-Ljbffr