Summary
Overview
Work History
Education
Skills
Websites
Accomplishments
Projects
Hobbies and Interests
Timeline
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Rajan Kashyap

New Delhi

Summary

Backend developer recognized for high productivity and efficient task completion. Specialized in API development, database management, and cloud services integration. Proven ability in problem-solving and collaboration with cross-functional teams, ensuring smooth project execution. Strong work ethic and adaptability drive continuous improvement and readiness for new challenges.

Overview

5
5
years of professional experience

Work History

Lead Backend Developer

DigitalPaani
Gurugram
08.2025 - Current
  • Owned backend systems and sprint execution, delivering scalable, production-ready solutions aligned with business goals.
  • Worked on AWS cost optimization by analyzing resource utilization, identifying underused services, and implementing instance right-sizing and storage optimization strategies to reduce overall cloud expenses.

Senior Software Engineer

DigitalPaani
Gurugram
09.2024 - 08.2025
  • Developed remote control functionality to operate STP/ETP plants through software integration, collaborating closely with the hardware team to enable seamless automation and real-time control.
  • Cut costs and improved security by migrating from MongoDB Atlas to self-hosted MongoDB on AWS EC2.
  • Developed an Analytical Engine to compute Excel-like formulas on plant sensor data collected from IoT-based data loggers, enabling real-time analysis with flexible time-based configurations.
  • Implemented a trigger system for plant issue alerts, supporting one-time, recurring, and conditional triggers.
  • Optimized performance and reduced costs by migrating time-series queries from MongoDB to ClickHouse, and established a robust codebase by setting up ESLint and Prettier.

Software Engineer

Sei
Gurugram
11.2023 - 09.2024
  • Monitored marketing channels, including websites, documents, app stores, and social media to identify and address non-compliant content.
  • Monitored audio and video content for non-compliance issues and used Python with FastAPI to retrieve data from app stores, Play Store, and Trustpilot.
  • Designed and developed a robust NestJS-based compliance monitoring system to uncover internal employee-level issues across the organization, integrating Slack, email, and WhatsApp for real-time, proactive alerts and faster resolution.

Software Developer

FunctionUp
Bangalore
10.2021 - 11.2023
  • Created a platform for assignment submissions and study material access, improving learning and engagement.
  • Created a leaderboard for student performance and a calendar for booking mentor slots to address queries.
  • Developed an automated bulk calling feature using Plivo to enhance lead engagement and conversion rates.

Backend Development Intern

Fanplay Games
Noida
08.2021 - 10.2021
  • Developed REST APIs, URL shortener, and shopping cart feature.
  • Developed a shopping cart feature to manage product selection, quantity, and checkout process.

Education

Bachelor of Science -

Chaudhary Charan Singh University
05.2019

Skills

  • Rest APIs
  • Nodejs
  • JavaScript
  • TypeScript
  • NestJS
  • Expressjs
  • MongoDB
  • PostgreSQL
  • ClickHouse
  • GitHub
  • GitLab
  • Handlebars
  • HTML
  • CSS
  • Python
  • Nextjs
  • Unit testing
  • aws lambda
  • CloudWatch
  • aws s3
  • aws SQS
  • EC2

Accomplishments

  • FunctionUp Top Techie Award (2021-2022)
  • DigitalPaani Nurturing Joyful Community Award (2024)
  • Demonstrating Ownership Award (2025)

Projects

  • Learning Management System (LMS), Backend with NestJS, MongoDB, JWT auth, adaptive testing., https://github.com/rk8126/LMS-backend
  • Find Non-Compliance Content with AI, Analyze webpage content against compliance policy., https://github.com/rk8126/seiright-project

Hobbies and Interests

  • Exploring emerging technologies
  • Playing Chess

Timeline

Lead Backend Developer

DigitalPaani
08.2025 - Current

Senior Software Engineer

DigitalPaani
09.2024 - 08.2025

Software Engineer

Sei
11.2023 - 09.2024

Software Developer

FunctionUp
10.2021 - 11.2023

Backend Development Intern

Fanplay Games
08.2021 - 10.2021

Bachelor of Science -

Chaudhary Charan Singh University
Rajan Kashyap