Mukesh Kumar
15+YOE | C/C++/C#/JAVA | SQL, PL/SQL | Telecom + BFSI | High-Performance Backend Engineer | IC + Tech Lead + EM Roles
- Role
- Principle Software Engineer at FIS
- Location
- Chandigarh, CH, IN
- LinkedIn followers
- 500 followers
About Mukesh Kumar
I design and scale high-performance backend systems for financial platforms handling…
Experience
Principle Software Engineer
May 2013 — Present · Chandigarh, IN
As a Software Development Engineer at FIS, I’ve led and contributed to high-impact systems in Retail Digital Payments, ACH Processing, Check File Automation, and Backend Platform Optimization, using C, C++, Pro*C, SQL, PL/SQL, Unix/Linux, and Java. Key Contributions:PayeeAutomation Platform: Architected a system to generate customized Credit Detail files (CSV, fixed-length, pipe-delimited) for thousands of payees and concentrators (e.g, ACI, VISA, MasterCard); integrated multi-threading, file formats, and restartabilityACH Systems: Developed/Enhanced ACHFormatter, Rebatcher, and Return processes; ensured compliance and re-batching efficiency with robust SQL + batch script handlingCheck Processing & Address Validation: Engineered backend systems for check file creation and address validation; developed C# socket services supporting live payment validationRegional Payee Automation: Automated regional payee creation, saving 100s of ops hours and increasing accuracy across high-volume batchesSystem Modernization: Migrated legacy VC++ to C++14, reduced build time by 90%; optimized batch runtimes from 1hr → under 5 mins; built ingestion pipelines in Java + Shell, increasing throughput 5x Tech Stack:C, C++, Pro*C, PL/SQL, Oracle, Java, C#, Unix/Linux, Shell Scripting, Control-M, Socket Programming Domains:Retail Digital Payments | ACH & Check Processing | Backend Infra | File Generation | FinTech
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