Himanshu Kumar Rajput

About Himanshu Kumar Rajput

I’m a Senior Backend Engineer with 6.5+ years of experience building scalable, event-driven platforms across FinTech, EdTech, Logistics, and Automotive domains.At CARS24, I work on large-scale financial and accounting systems that power high-throughput business flows. My focus is on building reliable backend platforms for accounting automation, reconciliation, and financial integrations—handling ₹500Cr+ per month with 99.99% transaction accuracy.I’ve contributed to- Designing and extending no-code / low-code middleware platforms for ETL and accounting automation- Building event-driven systems using GCP Pub/Sub and integrating them with SAP S/4HANA- Implementing rule-based accounting engines to transform business transactions into financial entries (GST & multi-ledger support)- Developing fault-tolerant, long-running workflows using Temporal for critical finance pipelines- Automating finance reporting and reconciliation using Apache Superset, replacing manual spreadsheet workflowsPreviously, I’ve built backend systems for- Payment platforms (Stripe, Apple Pay, Google Pay)- AI-enabled learning workflows- Search and discovery systems using MongoDB Atlas Search- Large-scale data ingestion and reporting pipelinesI enjoy working on backend systems where correctness, reliability, and scale matter, especially in finance-heavy domains that require strong auditability and operational discipline.Tech I work with:Python (Django, FastAPI), Node.js, GCP, AWS, Pub/Sub, Temporal, Airflow, SAP S/4HANA, MongoDB, PostgreSQL, Redis, Microservices, Event-driven architectures.Always happy to connect with folks working on FinTech platforms, backend infrastructure, distributed systems, or finance automation.

Experience

1. Software Developer

   Cars24

   Aug 2024 — Present · Gurugram, IN

   Key Engineering ContributionsEvent-Driven Financial Platform:Worked on a large-scale, event-driven accounting platform at CARS24, building backend services for finance automation and reconciliation- Developed asynchronous microservices using GCP Pub/Sub to process and route financial events reliably- Supported high-volume accounting workflows handling ₹500Cr+ per month with 99.99% transaction accuracy.No-Code Middleware & ETL Automation- Built and extended a no-code / configuration-driven middleware for ETL and accounting automation- Enabled onboarding of new finance use cases without code changes, supporting both- real-time event-driven flows - batch processing via Apache Airflow.Accounting Engine & SAP Integration- Worked on a JSON-based rule-driven accounting engine to transform Business Transactions (BTs) into Financial Transactions (FTs)- Implemented GST-aware, multi-ledger accounting logic with versioned rules and dynamic enrichment- Integrated accounting workflows with SAP S/4HANA, processing ~97% of company-wide accounting transactions in near real time- Integrated Aerchain (vendor payments, cross-charge accounting) and Happay (reimbursements) into centralized accounting flows.Orchestration & Reliability- Built and maintained fault-tolerant workflows using Temporal, enabling retries, delayed execution, and audit traceability for critical finance pipelines- Improved reliability and operational safety of long-running financial processes.Reporting & Data Platform- Automated finance reporting and reconciliation using Apache Superset, implementing 2-way and 3-way reconciliation- Reduced manual spreadsheet-driven reporting and eliminated multi-week delays.

Education

• Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow

  B.tech