Lalit Tyagi

Frontend Engineer

Gurugram, Haryana, India8 yrs 6 mos experience

Highly Stable

Key Highlights

8+ years of experience in frontend development.
Led initiatives improving build speed by 20% and test coverage above 85%.
Expert in modern frontend technologies like React and TypeScript.

Stackforce AI infers this person is a Frontend Engineer specializing in SaaS applications with a focus on performance and accessibility.

Contact

Skills

Core Skills

React.jsTypescriptPerformance OptimizationTesting (jest / Vitest)Team Leadership

Other Skills

Redux ToolkitViteTailwind CSSVitestJestFrontend ArchitectWeb DevelopmentSoftware DesignReact NativeJavaScriptes6Project ManagementResponsive Web DesignFront-end DevelopmentTroubleshooting

About

I’m a Senior Frontend Engineer with 8+ years of experience building scalable, accessible and high-performance web applications. Over the years, I’ve helped shape modern frontend architectures, mentored teams and delivered pixel-perfect UI systems that balance performance with design precision. At COSM, I’ve led cross-functional collaboration between design, backend and QA teams - driving features from concept to production while improving build speed by 20% and raising test coverage above 85%. My work at Airtel and Magic EdTech further strengthened my expertise in React, TypeScript, Redux Toolkit, Tailwind and modern build ecosystems like Vite. Beyond writing code, I focus on building teams that write better code - introducing component libraries, code quality standards and scalable design systems that accelerate delivery. I enjoy mentoring developers, refining UX flows and turning complex ideas into elegant user experiences. Currently, I’m exploring opportunities as a Frontend Team Lead or Architect, where I can combine hands-on development with technical leadership to build products that truly scale.

Experience

8 yrs 6 mos

Total Experience

1 yr 4 mos

Average Tenure

5 mos

Current Experience

Nagarro

Senior Staff Engineer

Dec 2025 – Present · 5 mos · Hybrid

Dunnhumby

Senior Engineer

Dec 2025 – Present · 5 mos · Hybrid

Cosm

Senior Software Engineer

Aug 2022 – Dec 2025 · 3 yrs 4 mos · Gurugram, Haryana, India · Hybrid

Summary:
Driving modern web architecture and UI delivery across cross-functional teams - leading initiatives that enhance scalability, performance and developer experience.
Key Contributions:
Led the frontend roadmap for the core admin platform, collaborating closely with design, backend and QA teams to ensure seamless delivery.
Modernized the build ecosystem with Vite, TypeScript and Tailwind, improving build time by 20% and reducing bundle size significantly.
Increased test coverage from ~10% to 85%+ by integrating Vitest and Jest, ensuring stable releases and higher CI confidence.
Introduced shared component libraries and design standards that accelerated feature delivery and improved UI consistency across modules.
Mentored 4+ engineers on React best practices, code review patterns and performance optimization techniques.
Championed accessibility, dark-mode compatibility and responsive design to align product UI with Figma specifications.
Tech Stack: React.js, TypeScript, Redux Toolkit, Vite, Tailwind CSS, Vitest and Jest

React.jsTypeScriptRedux ToolkitViteTailwind CSSVitest+7

Airtel

Senior Software Engineer

Jan 2022 – Jul 2022 · 6 mos · Remote

Contributed to the modernization of Airtel Thaks App ensuring high reliability and clean architecture under tight delivery schedules.

React.jsJestReact NativeTypeScriptTesting (Jest / Vitest)

Magic edtech

Software Engineer

Sep 2020 – Jan 2022 · 1 yr 4 mos · Noida, Uttar Pradesh, India

Q3 technologies

Frontend Developer

Jul 2019 – Sep 2020 · 1 yr 2 mos · Gurugram, Haryana, India

Worked for US based client for online learning platform as a ReactJS Developer.

Accenture

Associate Software Developer

Feb 2018 – Jul 2019 · 1 yr 5 mos · Gurgaon, Haryana, India

Worked for Indian Global Telecommunication Provider as ReactJS Developer.
Worked for US based health services organisation as ReactJS Developer.

Chainframe

Web Development Intern

Sep 2017 – Jan 2018 · 4 mos · Noida Area, India

Worked on web application for the ASTU(Automatic Scheme Track Unifier) is a radical improvement over any existing methods of public fund distribution undertaken by governments.