Headline

SDE-2 @ Carrum Mobility Solutions Pvt Ltd | Building Scalable Backend Solutions

About

As a Founding Engineer at Carrum Mobility Solutions Pvt Ltd, I work on building and scaling backend systems that power high-volume transaction workflows across mobility and business operations. My current role as an SDE-2 focuses on critical financial systems, including Payment Orders, Ledger, and Settlement, where I work on improving processing efficiency, reliability, and scalability. I’m particularly interested in modernizing complex workflows and designing systems that can handle growing transaction volumes while maintaining operational performance. Previously, as an SDE-1 at Carrum, I contributed to backend systems supporting multiple functions across Operations, Finance, and Commercial, gaining hands-on experience in building solutions that connect technology with real-world business processes. My expertise includes event-driven programming, backend engineering, Frappe/ERPNext, and scalable system design. I enjoy breaking down complex processes, improving them through technology, and building reliable systems that create measurable impact. I’m driven by the opportunity to solve challenging engineering problems, streamline business-critical workflows, and build scalable products in mobility and beyond.

Location

Gurugram

AI stack

antigravity

claude code

claude

cursor

mcp

openai

Work experience

Software Development Engineer 2 at Carrum Mobility Solutions Pvt Ltd, Apr 2026 - Present · 7 mos, Gurugram, • Spearheaded the migration of cloud infrastructure from AWS to GCP, focusing on cost optimization. • Revamped legacy systems to adopt a modern tech stack, enhancing efficiency and maintainability. • Collaborated with Product, Engineering, and QA to translate business requirements into technical solutions while balancing performance, cost, reliability, and delivery timelines. • Mentored 2 junior engineers through code reviews, architecture discussions, debugging, and production engineering practices

Software Development Engineer 1 at Carrum Mobility Solutions Pvt Ltd, Jun 2024 - May 2026 · 2 yrs, Gurugram, Own end-to-end backend for Payment Orders, Ledger, and Settlement systems, processing 6Cr+ in monthly transaction volume (30K transactions) across UPI and cash, covering security deposits and driver settlements. Built and scaled the Driver Onboarding platform supporting a base of 18K total drivers (3K daily active), streamlining onboarding workflows for both operations and drivers. Architected integrations across Frappe CRM, Tata Tele Smartflo Dialer/Click2Call, Chatwoot, Facebook, OLX, GPS vendors, and Razorpay, unifying lead and driver communication across channels for the operations team. Led modernization of spreadsheet-driven business workflows into centralized software systems, automating processes previously run manually on Google Sheets using AppScript and BigQuery. Built production observability and alerting across APIs, databases, and background jobs for services handling 12K+ RPM, with measured app-server transaction time of approximately 216 ms. Reduced API response latency by 45% through Redis caching, database indexing, query optimization, and asynchronous processing.

Software Engineer Intern at Techninza, Dec 2023 - May 2024 · 6 mos, Gurugram, Haryana, India, Trading Platform (RapidTrader) - - Built 3 desktop apps in Java Swing for admin, manager, and customer tasks - Created a mobile application using react-native, with the backend built on node.js and mongodb. - Developed restful apis and implemented webSocket events for real-time data processing. - Utilized queues to manage laborious and time-consuming tasks, enhancing apis efficiency. - Implemented caching strategies to improve the efficiency of apis and websocket performance. Education trading platform (TradeCafe) - - Developed the backend for a trading educational platform using node.js with hono.js framework. - Integrated mongodb for database management. - Implemented razorpay payment gateway for financial transactions. - Streamed real-time data from Zerodha Kite, including indices, futures, options, and nifty midcap stocks. Logistics Aggregation platform (Lorrigo) - - Developed the backend using node.js with express.js, and mongodb as the database. - Built rest-apis for order management: creation, manifests, bucketing, and cancellation. - Developed administrative apis to facilitate backend management. - Integrated apis from other aggregation platforms such as Smartship, SmartR, and Shiprocket. Tour-Travel mobile application - - Currently developing the backend with node.js and express.js, mysql database managed using prisma. - Working on the frontend using react native. - Building an application where users can share their travel status, and hosts can offer services. - Users can browse these services and book tickets to travel to specific destinations.

Education

Master of Computer Applications, Gurugram university

B. C. A, Computer Science, Gurugram university

Public links

github: https://github.com/Kapilrohilla

github: https://github.com/Kapilrohilla