OverviewExperteer OverviewAs 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.BenefitsProvide development and production support for Numia-owned systems and integrationsServe as first-line advisor for incidents during Italian business hours with optional out-of-hours coverageDiagnose and resolve defects, performance and integration issuesConduct root cause analysis and implement corrective actionsCollaborate with Numia stakeholders, internal dev teams, and infrastructure partnersAssist deployments, patches, and minor enhancements to ensure platform stabilityManage incidents and changes per SLAs and governance; maintain technical docs and incident recordsContribute to continuous improvement of support processes and application resilienceResponsibilitiesStrong knowledge of credit/debit card lifecycle, transactions, authorisations, clearing, settlement, and billingHands-on mainframe experience with CICS and DB2Ability to troubleshoot with mainframe tools including EazytrieveExperience with API-based integrations between distributed systems and mainframe appsProven production support, incident triage, RCA, and escalation in 24/7 environmentsExperience with client-facing payment systems and time-critical incidentsFluent Italian and English (spoken and written)Willingness to participate in out-of-hours support as part of a rotaRequisiti fondamentaliStrong knowledge of credit/debit card lifecycle, transactions, authorisations, clearing, settlement, and billingHands-on mainframe experience with CICS and DB2Ability to troubleshoot with mainframe tools including EazytrieveExperience with API-based integrations between distributed systems and mainframe appsProven production support, incident triage, RCA, and escalation in 24/7 environmentsExperience with client-facing payment systems and time-critical incidentsFluent Italian and English (spoken and written)Willingness to participate in out-of-hours support as part of a rota
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