Resume
Kushal Kumar

SDE & DevOps

Know About Me
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Work Experience

May 2024 - May 2025

Software Engineer I

Webdenso (Full-time)

Webdenso
  • Built transaction systems using PostgreSQL and caching, cutting cart latency by 70%.
  • Developed centralized media management with S3, auto webp and custom foldering, boosting availability up to 63%.
  • Migrated MongoDB database to PostgreSQL with normalization and replication, tripling user limit (350 → 1000+).
  • Optimized data search using trie and cache heaps, shrinking API size from 15MB to 4KB.
  • Implemented NGINX load balancing with Docker Slim, cutting server load by 35% and saving 45% memory.
Check related project here
Oct 2023 - Apr 2024

Full Stack Engineer Intern

MakeIndias (Internship)

MakeIndias
  • Implemented admin access control layer with JWT, 2FA, rate limits and IP whitelisting, reduced unauthorized access by 100%.
  • Architected bloom filter-cache system, cut username check latency (2600ms → 120 ms).

Projects

Giftlaya
Giftlaya
GiftlayaOnline platform providing decoration services, personalized gifts and event solutions for every type of celebrations to over 80+ cities.
See websiteLearn more
Bunchup
Bunchup
BunchupDiscord server for business spending-based events, offer rebates and leaderboards with threads for engagement and competition.
GithubDiscord serverLearn more
Pipme
Pipme
PipmePython package build and deployment to PyPI automation. Comes in a Docker image as well as a pip module.
GithubLearn more

Skills

Languages:

  • Golang

  • TypeScript

  • JavaScript (ES6)

  • C++

Everyday Tools:

  • Linux

  • Docker

  • Git

Development

Backend:

  • Golang

  • Nest.js

  • Express

Tools:

  • gRPC

  • Apache Kafka

  • GraphQL

  • NGINX

  • Prisma

  • RabbitMQ

Databases:

  • PostgreSQL

  • MySQL

  • MongoDB

  • Cassandra

  • Redis

Frontend:

  • Next.js

  • React.js

  • Tailwind CSS

  • Astro

Cloud and DevOps

Cloud:

  • Amazon Web Services (AWS)

  • Microsoft Azure

  • Hostinger

DevOps:

  • Grafana

  • Ansible

  • Jenkins

Miscellaneous

Multimedia and Art:

  • Photoshop

  • Blender

  • Premiere Pro

Discord:

  • Discord.js (bot development)

  • Guild management

Soft Skills:

  • Critical Thinking

  • Optimization

  • Fluent Communication

  • Adaptability

Education

2020 - 2023

BS Computer Science

St. Xavier's College

Xaviers
  • CGPA 8.65/10
  • Rank holder in final year with 9.4 SGPA (Web 99%, Algos 94%)
  • Winner of Data Science department inter-college DSA competition: Eureka

Achievements

Others

Nov 2024 - Dec 2024

Graphic Designer

The MantraMugdh

MantraMugdh
  • Designed the company logo and theme banner.
  • Handled social media page posts for the first month of startup.
Jun 2023 - Feb 2024

Node.js Instructor

BrightCHAMPS

BrightChamps
  • Conducted training sessions, focusing on clear understanding of asynchronous programming, server-side development and cache fundamentals for American students.
  • Assisted in building RESTful APIs, integrating MySQL and hosting the server on Heroku.

Reviews that speak

What work colleagues and clients say

Ravi Chakraborty

Ravi Chakraborty

CEO, MantraMugdh
"Kushal's work in MantraMugdh has transformed our business into an online market with high user reach. His backend skills is truly impressive. The UI designs are modern and user-friendly as well. Kushal has shown responsibility during his period of service."
Jamiel O' Kablfeau

Jamiel O' Kablfeau

Contractor, UI designer
"Kushal Kumar's UI designs are an eye-candy and appeals to many of my clients. He has consistently delivered since 2021 as my go-to UI designer."
Shreya Sarkar

Shreya Sarkar

Mentor, BrightChamps
"His consistent deliverance in making DSA fun to learn goes to show his expertise in the same."
Priyank Sutariya

Priyank Sutariya

Contractor, portfolio development
"He helped me migrate from Hostinger into Azure for a portfolio i hired him for. Overall I am happy with his works and recommend him as well."
Abhishek Biswas

Abhishek Biswas

Project Manager, Webdenso
"Kushal’s creativity in UI/UX design and development is unmatched. He has an incredible ability to balance functionality with aesthetics. He is also adept with backend and optimization as he handled a lot of heavy tasks like payments system and dynamic page management."
Hritesh Mehta

Hritesh Mehta

Project Manager, BrightChamps
"Kushal's effective communication enriched our team dynamics with students. He has high composure and patience demanded of an instructor."
Rudra Kumar Mishra

Rudra Kumar Mishra

Full Stack Developer, MakeIndias
"We have worked together over a year and I volunteer to say Kushal has high adaptability to growing needs and newer technologies. He learnt and implemented an IaC over a night with precision. His optimization using DSA is seamless and I have learnt much from him. He is humble, thus easily approachable as well."
Naveen Kumar

Naveen Kumar

Full Stack Developer, MakeIndias
"Kushal's analytical prowess and adept problem-solving capabilities were evident in his approach in creating the LMS system for my client. The speed is quick and satisfiable."
Aniruddh Yadav

Aniruddh Yadav

Sales Manager, MantraMugdh
"Kushal built a leads tracking and logging feature that the team finds really useful and productive to work with. He is a great person to be around with as well."
Vishal Gupta

Vishal Gupta

CEO, Webdenso
"During Kushal's tenure, his role encompassed backend, system architecturing, cloud management and performance optimization. His technical skills and problem solving abilities have been instrumental to us."
Ronit Khandelwal

Ronit Khandelwal

Backend Developer, Dharmayana
"Kushal's handling of UI/UX designing is just phenomenal, keeping in mind the smallest of the user requirements. Alongside, his backend skills to make any task more user-friendly is an added plus."
Sagar Das

Sagar Das

Senior Developer, Webdenso
"Kushal brings a perfect blend of technical expertise and design thinking. I have seen his works and can confidently vouch for his web skills."
Stacy Harper

Stacy Harper

Contractor, cloud and grpahics
"(Kushal) Kumar's been my primary developer when requiring discord bots or things setup online. His skills in graphics is also at a professional scale for having delivered consistent banners, logos and thumbnails as required."
Shubham Sharma

Shubham Sharma

SEO Executive, MakeIndias
"The on-page SEO done by Kushal is commendable. His skills in cloud and api is beyond great as it helps with page ranking by miles."
Ravi Chakraborty
Ravi Chakraborty
CEO, MantraMugdh
"Kushal's work in MantraMugdh has transformed our business into an online market with high user reach. His backend skills is truly impressive. The UI designs are modern and user-friendly as well. Kushal has shown responsibility during his period of service."
Jamiel O' Kablfeau
Jamiel O' Kablfeau
Contractor, UI designer
"Kushal Kumar's UI designs are an eye-candy and appeals to many of my clients. He has consistently delivered since 2021 as my go-to UI designer."
Shreya Sarkar
Shreya Sarkar
Mentor, BrightChamps
"His consistent deliverance in making DSA fun to learn goes to show his expertise in the same."
Priyank Sutariya
Priyank Sutariya
Contractor, portfolio development
"He helped me migrate from Hostinger into Azure for a portfolio i hired him for. Overall I am happy with his works and recommend him as well."
Abhishek Biswas
Abhishek Biswas
Project Manager, Webdenso
"Kushal’s creativity in UI/UX design and development is unmatched. He has an incredible ability to balance functionality with aesthetics. He is also adept with backend and optimization as he handled a lot of heavy tasks like payments system and dynamic page management."
Hritesh Mehta
Hritesh Mehta
Project Manager, BrightChamps
"Kushal's effective communication enriched our team dynamics with students. He has high composure and patience demanded of an instructor."
Rudra Kumar Mishra
Rudra Kumar Mishra
Full Stack Developer, MakeIndias
"We have worked together over a year and I volunteer to say Kushal has high adaptability to growing needs and newer technologies. He learnt and implemented an IaC over a night with precision. His optimization using DSA is seamless and I have learnt much from him. He is humble, thus easily approachable as well."
Naveen Kumar
Naveen Kumar
Full Stack Developer, MakeIndias
"Kushal's analytical prowess and adept problem-solving capabilities were evident in his approach in creating the LMS system for my client. The speed is quick and satisfiable."
Aniruddh Yadav
Aniruddh Yadav
Sales Manager, MantraMugdh
"Kushal built a leads tracking and logging feature that the team finds really useful and productive to work with. He is a great person to be around with as well."
Vishal Gupta
Vishal Gupta
CEO, Webdenso
"During Kushal's tenure, his role encompassed backend, system architecturing, cloud management and performance optimization. His technical skills and problem solving abilities have been instrumental to us."
Ronit Khandelwal
Ronit Khandelwal
Backend Developer, Dharmayana
"Kushal's handling of UI/UX designing is just phenomenal, keeping in mind the smallest of the user requirements. Alongside, his backend skills to make any task more user-friendly is an added plus."
Sagar Das
Sagar Das
Senior Developer, Webdenso
"Kushal brings a perfect blend of technical expertise and design thinking. I have seen his works and can confidently vouch for his web skills."
Stacy Harper
Stacy Harper
Contractor, cloud and grpahics
"(Kushal) Kumar's been my primary developer when requiring discord bots or things setup online. His skills in graphics is also at a professional scale for having delivered consistent banners, logos and thumbnails as required."
Shubham Sharma
Shubham Sharma
SEO Executive, MakeIndias
"The on-page SEO done by Kushal is commendable. His skills in cloud and api is beyond great as it helps with page ranking by miles."
Plan the present andbuild the future with me.
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