Hi, I'm Nikhil Tiwari

Software Engineer with years of experience

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About Me

Nikhil Tiwari

Software Engineer

Results-driven Senior Software Engineer with 7+ years of experience in backend development, scalable architecture, and system optimization. Expertise in PHP, Java, Python, Golang, AWS, and microservices, with a proven track record of improving system performance, reducing costs, and leading cross-functional teams.

Adept at designing and implementing event-driven architectures, caching strategies, and high-performance systems. Passionate about mentoring teams, driving innovation, and delivering impactful solutions.

Backend Cloud DevOps Microservices

My Skills

PHP

7 years

JavaScript/Node.js

6 years

AWS

7 years

Java

4 years

Python

4 years

Golang

2 years

Work Experience

Software Engineer

Oct 2020 - Dec 2024

Optum (UHG) - Gurugram, Haryana

Led in designing and implementing scalable backend solutions, performance optimization, and system architecture.

  • Reduced MySQL query load times from 2 seconds to 200-500ms, improving system efficiency by 1.5x
  • Designed and implemented a high-performance archival service, reducing database load
  • Developed a Golang-based microservice using AWS SQS and EventBridge
  • Designed a horizontal cache management system (CSM), reducing stale cache issues
  • Mentored junior developers and conducted code reviews to improve team productivity

Software Engineer

Feb 2019 - Jan 2020

NotifyVisitors - Delhi, Delhi

Led development of web applications and large-scale analytics systems.

  • Led the development of Progressive Web Applications (PWA) and Trusted Web Activities (TWA)
  • Built a Kafka-based Pub-Sub system for large-scale analytics
  • Developed a custom wrapper for Google Workbox to enhance client-side caching
  • Designed and implemented a rate-limiting system to manage API traffic

Junior Software Developer

Nov 2017 - June 2018

Bigly Technologies - Noida, UP

Developed RESTful APIs and full-stack applications.

  • Designed and tested RESTful APIs to enhance backend functionality
  • Transitioned from Core PHP to Laravel, improving code maintainability
  • Utilized PHP, MySQL, HTML, CSS, and JavaScript for full-stack development

Skill Development

Jan 2025 - Present

Self Employed - Delhi, Delhi

Focusing on expanding expertise in emerging technologies.

  • Focused on Data Structures & Algorithms (DSA) to strengthen problem-solving skills
  • Exploring AI/ML concepts, including supervised learning, neural networks, and NLP
  • Working on personal projects to apply AI/ML techniques in real-world scenarios

My Education

Bachelor of Computer Application (BCA)

2014 - 2017

APS University, Satna, MP

Foundation in computer science, programming concepts, and software development.

Featured Projects

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YouTube Unblocker

Chrome Extension to unblock YouTube access in restricted networks.

JavaScript Chrome API HTML/CSS

My Resume

Download my complete resume to learn more about my experience, skills, and qualifications.

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