Engineering high-performance web architectures
Hi, I'm Rohit Kumar. With 5 years of professional engineering experience, I specialize in crafting pixel-perfect, accessible user interfaces and scalable APIs for global enterprise clients like FedEx, Middleby, and Unilever.
Driven by structure, performance, and user experience.
I am a developer who thrives at the intersection of engineering excellence and digital product design. Over the past five years, I've had the privilege of building high-performance e-commerce engines, complex client-facing applications, and robust SaaS tools.
My professional journey is centered around building highly interactive, type-safe frontend systems. I am deeply passionate about modular architectures, component reuse, performance audits, and absolute responsiveness.
Currently, I work with startups and enterprise organizations to bring complex software specifications to life, helping product teams deliver pixel-perfect designs, lightning-fast loads, and SEO-optimized web standards.
Core Domains
Key professional execution areas
Frontend Engineering
Building accessible, high-fidelity interfaces using React, Next.js, and TypeScript.
Backend & Systems
Developing type-safe REST APIs and GraphQL gateways using Node.js and Express.
Web Standards & SEO
Optimizing Core Web Vitals, performance indexing, and search engine discoverability.
Analytics & Behavior
Tracking user metrics with Google Tag Manager, Google Analytics, and LogRocket.
Skills & Technologies
Five years of engineering experience developing high-performance web systems. My stack is centered around the TypeScript and React ecosystems, backed by reliable backend service layers and robust data structures.
Frontend Core
7 skills
Backend & Service
5 skills
Databases & ORM
5 skills
DevOps & Infrastructure
5 skills
Optimization & Analytics
5 skills
Design & Project Mgmt
3 skills
Professional Experience
My career timeline showing technical contribution, engineering progress, and project execution.
Senior UI Developer
Mcfadyen Digital
Engineered scalable, responsive web solutions for major enterprise retail clients. Collaborated closely with cross-functional design and product teams to implement pixel-perfect user interfaces, custom theme architectures, and core web vitals optimization.
Software Developer
Audviklabs Pvt. Ltd.
Developed custom websites and client applications using modern frontend tech. Managed code quality, built modular UI components, and improved application responsive behavior across multi-browser settings.
Certifications & Achievements
Industry credentials and corporate honors validating technical mastery and commitment to high-quality frontend engineering.
Spot Award for Engineering Excellence
Successive Technologies
Recognized for exceptional engineering contributions, dedication to client delivery, and demonstrating high standards of technical execution across complex enterprise project sprints.
JavaScript (Advanced) Certificate
Validated advanced JavaScript concepts including design patterns, closures, prototypes, asynchronous workflows, and memory management.
React (Basic) Certificate
Demonstrated proficiency in React fundamentals, components, hooks, state management, routing, and form handling.
Advanced Web Development Course
Completed a comprehensive program covering advanced CSS/JS, modern frontend structures, rendering strategies, and responsive layouts.
Featured Projects
A curated selection of engineering work spanning enterprise systems, product applications, and open-source tooling.
Enterprise Client Systems
Enterprise · E-CommerceArchitected and delivered scalable frontend systems for global enterprise clients — FedEx, Middleby, ChemDirect, Unilever Food, and Tasting App. Managed headless e-commerce integrations, custom theme architecture, and performance optimization pipelines.
01 / 03
Recent Posts
Check out my latest thoughts and tutorials on web development.
React is fast, but the Document Object Model (DOM) is expensive. If you try to render 100,000 elements at once, the browser has to create 100,000 nodes in memory, calculate their styles, compute their layout (reflow), and paint them to the screen.
Hydration errors are one of the most common annoying issues you will face while working with Next.js, especially after upgrading to newer versions like Next.js 15 or 16. If your console shows messages like Hydration failed because the initial UI does not match what was rendered on the server.
In the battle of AI tools, Google has launched something different which is not just a chatbot, but a personalized research assistant that will become an expert to your contents. In late 2024 its "experimental" label got removed and this innovative tool has captured the attention of millions worldwide till date, from students mugging up for exams to the companies streamlining their research workflows.
Get In Touch
Let's discuss how we can work together to build exceptional frontend architectures and scalable digital solutions.
Contact Information
Feel free to reach out directly through any of these channels. I typically respond within 24 hours.
Collaboration Status
Currently open to freelance consulting, senior frontend architecture roles, and select full-time opportunities. Let's create something high-performance.
Send Message
Submit the form below to establish contact