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Niraj Kumar

Software Engineer | Node.js · AWS Lambda · PostgreSQL | Scalable APIs & Serverless Systems | AWS Certified | Open to SDE Roles

Pune District

4+ years of work experience

Cognizant
Sep 20259 mosPresent

Pune District, Maharashtra, India

- Built and shipped RESTful backend services using Node.js, Express, and AWS Lambda for a dealer management platform serving Toyota Motor North America (TMNA) - 1,500+ dealerships across North America - Designed and optimized PostgreSQL schemas with indexing strategies, reducing data retrieval latency on high-traffic inventory queries - Implemented an event-driven email notification service using AWS Lambda triggers, handling transactional and workflow-based events in production - Engineered client-side PDF and Excel export features in Angular by processing DOM-rendered data, enabling self-serve reporting for dealers - Diagnosed and resolved production incidents across application layers, improving system uptime and reliability - Contributed to Agile sprint cycles including planning, peer code reviews, and production deployments in a cross-functional team
Cognizant
May 20254 mosAug 2025

Chennai, Tamil Nadu, India

- Developed Angular UI components for Home Page, Favourites and Contact Page, integrating REST APIs and improving frontend responsiveness - Built RESTful APIs using Node.js and Express for a MEAN-based rental system with authentication and booking workflows - Implemented secure database integration and supported API debugging, performance tuning, and deployment in an Agile environment
ECell MMMUT
Mar 20222 yrs 9 mosNov 2024

Gorakhpur, Uttar Pradesh, India

Education

Madan Mohan Malaviya University of Technology

B.Tech, Electrical Engineering

Madan Mohan Malaviya University of Technology

20214 yrs2025

High School, Science

Mahant Ram Rup Goswami College, Bettiah

20192 yrs2021

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Headline

Software Engineer | Node.js · AWS Lambda · PostgreSQL | Scalable APIs & Serverless Systems | AWS Certified | Open to SDE Roles

About

Software Engineer at Cognizant, building production-grade backend systems on Node.js, AWS Lambda, and PostgreSQL. Currently working on an enterprise dealer management platform for Toyota Motor North America - a system serving thousands of dealerships across the US and Canada. My work spans RESTful API design, event-driven serverless architecture, relational data modeling, and Angular frontend integration. I care deeply about system reliability, clean API contracts, and query performance. Beyond production work, I have a strong CS fundamentals foundation - 450+ DSA problems solved, and active preparation in system design and distributed systems. AWS Certified Cloud Practitioner. Targeting SDE-1/SDE-2 roles at product-first engineering teams where scale and craft both matter.

Location

Pune District

Work experience

Software Engineer at Cognizant, Sep 2025 - Present · 9 mos, Pune District, Maharashtra, India, - Built and shipped RESTful backend services using Node.js, Express, and AWS Lambda for a dealer management platform serving Toyota Motor North America (TMNA) - 1,500+ dealerships across North America - Designed and optimized PostgreSQL schemas with indexing strategies, reducing data retrieval latency on high-traffic inventory queries - Implemented an event-driven email notification service using AWS Lambda triggers, handling transactional and workflow-based events in production - Engineered client-side PDF and Excel export features in Angular by processing DOM-rendered data, enabling self-serve reporting for dealers - Diagnosed and resolved production incidents across application layers, improving system uptime and reliability - Contributed to Agile sprint cycles including planning, peer code reviews, and production deployments in a cross-functional team

Intern at Cognizant, May 2025 - Aug 2025 · 4 mos, Chennai, Tamil Nadu, India, - Developed Angular UI components for Home Page, Favourites and Contact Page, integrating REST APIs and improving frontend responsiveness - Built RESTful APIs using Node.js and Express for a MEAN-based rental system with authentication and booking workflows - Implemented secure database integration and supported API debugging, performance tuning, and deployment in an Agile environment

Technical Head at ECell MMMUT, Mar 2022 - Nov 2024 · 2 yrs 9 mos, Gorakhpur, Uttar Pradesh, India

Education

B.Tech, Electrical Engineering, Madan Mohan Malaviya University of Technology

High School, Science, Mahant Ram Rup Goswami College, Bettiah