Calling all innovators – find your future at Fiserv.
We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. Senior Application Developer
As an Senior Application Developer , you will provide critical application support and development expertise for our client in Milan, a strategically important client generating high revenue annually. The role is customer‑facing and requires an Italy‑based, Italian‑speaking technical advisor who can respond promptly during local business hours and provide out‑of‑hours (OOH) support for high‑severity incidents.
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. Perform root cause analysis (RCA) and implement corrective and preventive actions
Support deployments, patches,



and minor enhancements to ensure platform stability
Maintain accurate technical documentation and incident records
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 and troubleshoot issues using mainframe utilities and tools, including Eazytrieve
Experience supporting API‑based integrations between distributed systems and mainframe applications
Solid understanding of production support, incident triage, root‑cause analysis, and escalation in a 24×7 environment
Fluent Italian and English (spoken and written)
Experience with VisionPLUS modules (e.g. issuing, authorisation, settlement, or billing components)
Experience with distributed‑to‑mainframe integration architectures, including middleware and APIs
Experience operating with

📌 Application Developer SQL Server BI (Italia)
🏢 Fiserv
📍 Italia