Angular Frontend Engineer - 4+ Years Experience in Angular & RxJS

SANJEEV N

Angular Developer Frontend Engineer

India, The Nilgiris • *******.***********@*****.*** • 638-***-**** • linkedin.com/in/sanjeev PROFESSIONAL SUMMARY

Angular Developer with 4+ years of enterprise-grade frontend experience, specializing in scalable component architecture, reactive programming with RxJS, and application performance optimization. Proven track record delivering production applications for global clients (Shell, MSRTC) on a product-based smart app builder platform. Hands-on expertise in NgRx state management, OnPush change detection, OAuth 2.0 security integration, and cross-team technical collaboration. TECHNICAL SKILLS

Frontend Angular (v2–v17), TypeScript, RxJS, NgRx, HTML5, CSS3/SCSS, Figma,JavaScript (ES6+), Ionic

Reactive / State RxJS Operators, NgRx Store/Effects/Selectors Testing Jasmine, Karma (Unit Testing), Angular TestBed Backend Node.js, Express.js, REST APIs, OAuth 2.0

Databases MongoDB, CouchDB

Tools & DevOps Angular CLI, Git, GitHub, GitLab, Postman, CI/CD,VS Code, npm PROFESSIONAL EXPERIENCE

Software Engineer — ChainSys India Private LimitedFeb 2022 – Present Enterprise Smart App Builder Platform Clients: Shell, MSRTC

• Architected and maintained reusable Angular component libraries using OnPush change detection, reducing unnecessary render cycles and improving app responsiveness by ~30% across enterprise modules.

• Led implementation of NgRx state management for complex multi-step workflows, ensuring predictable state and simplified debugging across large-scale drag-and-drop application builder.

• Built reactive data pipelines using RxJS operators (switchMap, combineLatest, takeUntil) for real-time dashboard updates, eliminating memory leaks and race conditions.

• Designed and integrated REST APIs with OAuth 2.0 authentication, including CouchDB pipelines for secure data management across Shell and MSRTC client environments.

• Delivered UI/UX enhancements across search filters, data grids (SlickGrid), and form modules — achieving a measurable 20% increase in user engagement.

• Contributed to responsive UI migration initiative, ensuring cross-platform compatibility across desktop and mobile (Ionic) using Angular and SCSS.

• Implemented unit tests using Jasmine/Karma for critical components, maintaining code quality standards across a large shared codebase.

• Mentored junior team members on Angular best practices, component architecture patterns, and debugging methodology.

• Collaborated with backend, QA, and product teams to resolve deployment blockers and ensure high-quality, secure releases for enterprise clients. KEY PROJECTS

Instance Creation & Hierarchy Visualization

Angular v17 · Node.js · Express.js · CouchDB · OAuth 2.0 · REST APIs

• Built an enterprise pipeline visualization tool displaying instance hierarchy flows (Dev Release Patch

Hotfix UAT) using Angular v17 with dynamic component rendering.

• Architected secure OAuth 2.0 backend APIs for CRUD operations on pipeline data in CouchDB; integrated with Angular frontend for real-time tracking and updates.

• Applied Angular's latest standalone component patterns and deferred loading for optimal performance. Task Management Web Application

Angular · Node.js · Express.js · MongoDB

• Designed and developed a full-stack CRUD application with reusable Angular components, REST API integration, MongoDB data persistence, and robust validation and error handling.

• Implemented reactive form handling and HTTP interceptors for centralized error management. EDUCATION

B.E. — Electronics and Communication EngineeringAug 2018 – Jun 2022 DR. N.G.P. Institute of Technology CGPA: 7.77

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