Rajan Singh
Systems Engineer at TCS
- Role
- System Engineer at Tata Consultancy Services
- Location
- Mumbai, MH, IN
- LinkedIn followers
- 500 followers
About Rajan Singh
Enthusiastic Software Engineer, eager to contribute to team success, attention to detail and excellent organizational skills. Collaborative team player, motivated to learn, grow and excel in an organization.
Experience
System Engineer
Aug 2023 — Present · Mumbai, IN
Project: Invoice Litigation System | Enterprise Rollout (Stellantis – 44 EU Countries)Played a key role in delivering a large-scale enterprise Invoice Litigation System for Stellantis, supporting operations across 44 European countries.Optimized core backend logic within the APO module, improving supplier invoice processing speed by 40% and reducing processing errors by 50%.Designed and implemented intelligent automation workflows for invoice–PO matching, handling complex scenarios such as currency mismatches, multi-line POs, and quantity/price variances.Developed automated test data generation scripts for invoices and POs with exception cases, accelerating QA and UAT cycles by 40%.Collaborated closely with business stakeholders across multiple regions to gather requirements and deliver customer-centric enhancements.Supported production deployments and stabilization, maintaining high system reliability with <5% post-deployment defects.Demonstrated strong agility by rapidly re-engineering solutions during SAP cross-system integrations, significantly reducing dependency-related delays.Impact:Delivered a mission-critical financial workflow platform processing €3.6B–€9.1B annually, directly supporting major Stellantis brands including Fiat, Citroën, and Jeep.
Education
Vani Vidyalaya Junior College
HSC, Science
Ramrao Adik Institute of Technology
Bachelor of Engineering - BE, Computer Engineering
2019 — 2023
Holy Angels' High School
SSC
University of Mumbai
Bachelor of Engineering - BE, Computer Engineering
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