Vansh Karnwal profile photo 1 on Tal

Vansh Karnwal

Senior Engineer @ KPIT Technologies | Java | Spring Boot | React.js | AWS | MongoDB | React Native | JavaScript | TypeScript | Ex-Siemens Healthineers

Bengaluru

3+ years of work experience

KPIT
Mar 20268 mosPresent

As a Senior Engineer at KPIT Technologies, I develop a full-stack vehicle visualization platform using Java, Spring Boot, React.js, and MongoDB that enables engineers to analyze autonomous vehicle scenarios through synchronized playback, signal inspection, and interactive visualizations. I optimized large-scale telemetry data processing by converting CSV datasets to Apache Parquet and implementing a high-performance data processing engine, reducing loading times for 3,000+ row datasets from 2.5 minutes to under 30 seconds while significantly improving memory efficiency. I also built dynamic, real-time visualization dashboards to display the ego vehicle, surrounding traffic participants, obstacles, traffic signals, and vehicle trajectories, enabling faster debugging and validation of autonomous driving scenarios. Additionally, I developed scalable REST APIs and backend services using Spring Boot to support high-performance data retrieval and seamless integration between the visualization platform and backend systems.
Apptile
Apr 20251 yrMar 2026

As a Software Developer at Apptile, I designed and implemented a real-time live auction system for a live commerce platform using Node.js, Express.js, MongoDB, Redis, React.js, and React Native, enabling thousands of concurrent users to participate in live bidding with sub-second updates. I developed scalable backend REST APIs to manage the complete auction lifecycle—including auction creation, start, bidding, and closure—and implemented atomic bid validation with Redis-based distributed locking to eliminate race conditions during high-concurrency bidding events. To deliver a seamless live experience, I integrated Zego WebRTC broadcast messaging for real-time bid synchronization, countdown timers, and winner announcements across both web and mobile applications, ensuring low-latency communication and a responsive user experience.
Siemens Healthineers
Jul 20231 yr 10 mosApr 2025

Built an internal seat reservation platform using React.js, delivering real-time seat availability and booking across 2 Siemens campuses supporting 1,000+ active users. Integrated secure internal APIs for employee authentication and access control, adhering to enterprise-grade security requirements and achieving 100% compliance with Siemens IT standards. Refactored large, monolithic React components into modular, reusable components, improving developer onboarding time by 30% and reducing UI-related bugs by 20%.
GitHub
@onnrent
LeetCode
@rank01

Vansh’s AI Stack

claude code
claude code
cursor
cursor
elevenlabs
elevenlabs
gemini
gemini
github copilot
github copilot
hugging face
hugging face

Education

Graphic Era Deemed to be University

Bachelor of Technology - BTech, Engineering

Graphic Era Deemed to be University

20194 yrs2023
Graphic Era Hill University

Bachelor of Technology, Computer Engineering

Graphic Era Hill University

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Headline

Senior Engineer @ KPIT Technologies | Java | Spring Boot | React.js | AWS | MongoDB | React Native | JavaScript | TypeScript | Ex-Siemens Healthineers

About

Software Developer with 3.5+ years of experience building scalable web and mobile applications using React.js, React Native, Nodejs and TypeScript. Tech Stack: React.js • React Native • TypeScript • NodeJs • MongoDB • JavaScript • Redux • AWS • PostgreSQL

Location

Bengaluru

AI stack

claude code

cursor

elevenlabs

gemini

github copilot

hugging face

Work experience

Senior Engineer at KPIT, Mar 2026 - Present · 8 mos, As a Senior Engineer at KPIT Technologies, I develop a full-stack vehicle visualization platform using Java, Spring Boot, React.js, and MongoDB that enables engineers to analyze autonomous vehicle scenarios through synchronized playback, signal inspection, and interactive visualizations. I optimized large-scale telemetry data processing by converting CSV datasets to Apache Parquet and implementing a high-performance data processing engine, reducing loading times for 3,000+ row datasets from 2.5 minutes to under 30 seconds while significantly improving memory efficiency. I also built dynamic, real-time visualization dashboards to display the ego vehicle, surrounding traffic participants, obstacles, traffic signals, and vehicle trajectories, enabling faster debugging and validation of autonomous driving scenarios. Additionally, I developed scalable REST APIs and backend services using Spring Boot to support high-performance data retrieval and seamless integration between the visualization platform and backend systems.

Software Engineer at Apptile, Apr 2025 - Mar 2026 · 1 yr, As a Software Developer at Apptile, I designed and implemented a real-time live auction system for a live commerce platform using Node.js, Express.js, MongoDB, Redis, React.js, and React Native, enabling thousands of concurrent users to participate in live bidding with sub-second updates. I developed scalable backend REST APIs to manage the complete auction lifecycle—including auction creation, start, bidding, and closure—and implemented atomic bid validation with Redis-based distributed locking to eliminate race conditions during high-concurrency bidding events. To deliver a seamless live experience, I integrated Zego WebRTC broadcast messaging for real-time bid synchronization, countdown timers, and winner announcements across both web and mobile applications, ensuring low-latency communication and a responsive user experience.

Software Engineer at Siemens Healthineers, Jul 2023 - Apr 2025 · 1 yr 10 mos, Built an internal seat reservation platform using React.js, delivering real-time seat availability and booking across 2 Siemens campuses supporting 1,000+ active users. Integrated secure internal APIs for employee authentication and access control, adhering to enterprise-grade security requirements and achieving 100% compliance with Siemens IT standards. Refactored large, monolithic React components into modular, reusable components, improving developer onboarding time by 30% and reducing UI-related bugs by 20%.

Education

Bachelor of Technology - BTech, Engineering, Graphic Era Deemed to be University

Bachelor of Technology, Computer Engineering, Graphic Era Hill University

Public links

github: https://github.com/onnrent

leetcode: https://leetcode.com/rank01

Vansh Karnwal - Senior Engineer in Bengaluru | Tal