Frontend Developer with React/Next.js Expertise

Sachin Kumar

Phone-Alt 954******* j Envelope *********************@*****.*** j Github sachinThree j Map-marker-alt Noida Sector 52 SKILLS

Frontend : Next.js, React.js, Redux Toolkit, React Query, TypeScript, JavaScript (ES6+), HTML5, CSS3, Tailwind CSS, Material UI (MUI), ShadCN/UI

Backend : Node.js (Express), REST APIs, Microservices, GraphQL Databases & Caching : PostgreSQL, Redis

Messaging & Real-Time : RabbitMQ, AWS SQS/SNS, Socket.IO, WebSockets) Cloud & DevOps : AWS (EC2, S3), Docker, Jenkins, ArgoCD, Terraform, CI/CD Pipelines, GitHub Actions, Nginx Testing & QA : Playwright, Jest, React Testing Library, API Testing, Load Testing (k6, Locust) Security & Auth : Auth0, JWT, RBAC, OAuth 2.0

Monitoring & Logging : Winston, Grafana, AWS CloudWatch, Sentry EXPERIENCE

HT Media Group Sep 2022 – Nov 2025

Frontend Developer Gurugram, Haryana, India

End-to-End Job Search Page Architecture (React, Next.js, TypeScript) Led the design and implementation of a production-grade Job Search experience including Header, Sub-Header, Search Bar, Filters, and Results Grid using React 18/Next.js SSR. Built composable layouts and feature-driven folders to enable independent deployment of Search, Filter, and Listing modules while maintaining consistent UX.

Dynamic Search & Filter System (React Hooks, REST APIs, Debouncing) Developed keyword search, location filters, and multi-select refinements using controlled inputs and debounced API calls. Architected centralized filter state using React Context and custom hooks, enabling real-time updates without unnecessary re-renders.

Reusable Job Card Components (React, Tailwind CSS, Memoization) Built scalable Job Card UI with lazy-loaded assets, conditional badges, and apply CTAs. Optimized rendering performance using React.memo and useCallback, ensuring smooth UX even with large datasets.

Top Hiring Companies Module (React, CSS Grid, Responsive Design) Implemented a responsive Top Companies Hiring carousel with adaptive layouts using Tailwind and CSS Grid, improving employer visibility and engagement across desktop and mobile devices.

Saved Search Toggle & Persistence (React, LocalStorage, API Integration) Designed Save Search workflows using toggle-based UX, persisting preferences via REST APIs and browser storage to provide seamless access to recurring searches across sessions.

Personalized Recommendation Banner (React, Business Logic Layer) Built the Are these jobs relevant for you? banner by integrating user profile data and recent search history, delivering contextual job suggestions and improving discovery through client-side personalization logic.

SEO-Friendly Pagination System (Next.js Routing, Query Params) Implemented server-driven pagination synchronized with URL parameters, enabling deep linking, browser navigation, and crawlable job result pages while optimizing API payloads.

Sub-Filter Listing & App Download Funnel (Conditional Rendering, Analytics) Developed sub-filter experiences that intelligently surfaced mobile app download CTAs based on user intent, improving conversion rates through contextual UI placement and tracked interaction events.

Partner Sites Integration (React, Tracking Events) Integrated Partner Sites section with outbound link tracking and impression analytics, allowing business stakeholders to measure partner performance and optimize traffic monetization.

Centralized State Management & URL Sync (React Context, Custom Hooks) Architected shared state for search, filters, pagination, and banners with URL synchronization, enabling state persistence on refresh and sharable filtered job URLs.

Accessibility & UX Optimization (ARIA, Skeleton Loaders) Enhanced accessibility using ARIA attributes, keyboard navigation, skeleton loaders, and empty states, improving usability and perceived performance across all user journeys.

Performance Optimization (Code Splitting, Lazy Loading) Reduced initial load time through dynamic imports, lazy-loaded images, and component-level code splitting while minimizing unnecessary re-renders using hook dependency optimization.

Analytics Instrumentation (Event Tracking, Product Metrics) Instrumented search, filters, job cards, saved searches, pagination, and partner clicks with analytics hooks to support A/B testing and data-driven product decisions.

Production Hardening (Error Boundaries, Edge Case Handling) Implemented error boundaries, API fallback UI, zero-result handling, and debounced inputs to ensure resilience and stability in high-traffic environments.

Shine Express Fast Job Posting Platform Developed a high-performance job posting platform that reduced posting time by 75%. Streamlined job creation workflows, optimized backend APIs, and enhanced UX for recruiters posting jobs at scale.

Cron Jobs for Automation & Monitoring Implemented and managed 10+ cron jobs for tasks such as resume fetching, SEO indexing, Spark pipeline execution, and system health checks, ensuring smooth backend operations.

Automated Web Scraping & Data Integration Built scraping pipelines to extract data from job portals and competitor sites. Implemented retry mechanisms, proxy rotation, and integrated collected data into internal systems for analytics and reporting.

Tech Stack JavaScript (ES6+), React.js, Redux, Next.js, Node.js (Express), TypeScript, PostgreSQL, Redis, RabbitMQ, Docker, Jenkins, ArgoCD, AWS (EC2, S3,), Auth0, Prisma, Playwright, Jest. HT Media Group Jan 2019 – Sep 2022

Frontend HTML Developer Gurugram, Haryana, India

Enterprise News Platform Revamp Led frontend modernization of high-traffic news and content portals, rebuilding key landing pages using semantic HTML5, CSS3, Bootstrap, and JavaScript, improving page load speed by 40% and increasing mobile engagement significantly.

Design System Adoption Converted Figma/XD/PSD designs into pixel-perfect, reusable UI components while introducing consistent spacing, typography, and layout standards across multiple digital properties.

SEO & Accessibility Improvements Implemented semantic markup, structured headings, schema-ready layouts, and accessibility best practices (ARIA, alt tags), improving search engine visibility and WCAG compliance.

High-Performance Responsive Experiences Built mobile-first layouts using CSS Grid, Flexbox, and media queries, delivering seamless experiences across desktop, tablet, and mobile for millions of monthly users.

Frontend Performance Optimization Optimized critical rendering paths by compressing assets, lazy-loading images, minimizing CSS/JS, and eliminating layout shifts, directly improving Core Web Vitals scores.

Interactive UI Modules Developed JavaScript-powered UI features including navigation menus, content sliders, accordions, and form validations to enhance reader engagement.

Cross-Browser Compatibility Engineering Ensured consistent UI behavior across Chrome, Firefox, Safari, and Edge using progressive enhancement and graceful degradation techniques.

Production Bug Resolution & QA Collaboration Actively collaborated with QA and product teams to resolve UI regressions, layout inconsistencies, and responsive issues in production environments.

Editorial CMS Integration Integrated frontend layouts with internal CMS platforms, enabling editors to dynamically publish content while preserving visual consistency and performance.

Mentorship & Code Quality Guided junior developers on responsive design patterns and frontend best practices while maintaining clean, maintainable codebases.

HT Media Group Aug 2017 – Jan 2019

Frontend Email Developer Gurugram, Haryana, India

Responsive Email Campaign System Designed and developed mobile-responsive email templates using HTML/CSS, supporting large-scale editorial and marketing campaigns reaching hundreds of thousands of users.

Cross-Client Rendering Optimization Ensured consistent email rendering across Gmail, Outlook, Yahoo, and Apple Mail using table-based layouts and inline styles.

Performance & Deliverability Improvements Optimized image assets and HTML structure to reduce email load time and improve deliverability rates.

Reusable Email Components Built modular email blocks (headers, footers, CTAs) to accelerate campaign creation and improve design consistency.

EDUCATION

Chaudhary Charan Singh University 2014

Bachelor of Computer Applications Shri Ram Group of Colleges Muzaffarnagar)

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