Sirajul Arfin

Frontend Engineer

Gurugram, Haryana, India3 yrs 8 mos experience

Highly StableAI Enabled

Key Highlights

Expert in building scalable web and mobile applications.
Proficient in React.js, React Native, and TypeScript.
Strong focus on clean, maintainable code and performance.

Stackforce AI infers this person is a Frontend Engineer specializing in B2C applications with a strong focus on React technologies.

Contact

sirajularfin@gmail.com LinkedIn

Skills

Core Skills

React.jsReact NativeBig Data

Other Skills

JavaScriptTypeScriptReduxRedux ThunkRTKHTML5Cascading Style Sheets (CSS)Context APIMaterial UIGitlabREST APIsViteGoogle Maps APIGemini APICross-platform Development

About

Front End Engineer with 3.5+ years of experience building scalable web and mobile applications using React.js, React Native, and Next.js. I specialize in creating performant, user-friendly interfaces with clean architecture. My recent work includes building real-time tracking systems with Google Maps integration, implementing AI-powered features using Gemini API, and ensuring app security through SSL pinning. What I bring to the table: 💻 Cross-platform development (iOS, Android, Web) 🔄 State management and API integration (REST, GraphQL, RTK Query) ⚡ Real-time features (Live Activity, WebSockets, push notifications) 🔒 Security implementation and performance optimization ✅ Test-driven development with 90%+ code coverage I'm passionate about writing clean, maintainable code and staying updated with the latest front-end technologies. Always open to connecting with fellow developers and exploring new opportunities in mobile and web development. Tech Stack: React Native | React.js | Next.js | TypeScript | Redux | Firebase | Google Maps API 📧 Open to connect and collaborate!

Experience

3 yrs 8 mos

Total Experience

3 yrs 8 mos

Average Tenure

3 yrs 8 mos

Current Experience

Nagarro

4 roles

Senior Engineer

Promoted

Apr 2025 – Present · 1 yr 2 mos · Gurugram, Haryana, India · Remote

Integrated Google Maps SDK and Google Places API to build real-time live tracking similar to Rapido, enabling users to track drivers with 95% location accuracy.
Built generative AI features using the Gemini API for dynamic content generation, including contextual translation and AI-powered user interactions.
Consumed both RESTful and GraphQL APIs.
Implemented SSL pinning to enhance app security, protecting against man-in-the-middle attacks and securing sensitive user data.
Developed background services for Android to handle location updates and notifications, improving battery efficiency by 25%.
Implemented multi-language support with dynamic language switching and supporting 8+ languages.

React.jsReact NativeJavaScriptTypeScriptReduxRedux Thunk+8

Engineer

Promoted

Oct 2023 – Apr 2025 · 1 yr 6 mos · Gurugram, Haryana, India · Remote

Built and shipped hybrid mobile apps using React Native with RTK Query for efficient API caching and state synchronization, reducing API calls by 50%.
Designed and developed responsive UIs for both web and mobile applications.
Delivered Live Activity support for iOS, increasing real-time user engagement by 50% and enhancing user retention.
Implemented push notifications using Firebase Cloud Messaging for both iOS and Android.

React NativeTypeScriptReduxRedux ThunkRTKCross-platform Development+1

Associate Engineer

Sep 2022 – Sep 2023 · 1 yr · Gurugram, Haryana, India · Remote

Designed and developed reusable React Native components, enhancing maintainability and consistency across modules.
Conducted rigorous testing with Jest and React Native Testing Library for both web and mobile applications, achieving 92% code coverage.

TypeScriptREST APIsReact NativeReact.js

Engineering Trainee

Jun 2022 – Sep 2022 · 3 mos · Gurugram, Haryana, India · Remote

Core JavaAdvance JavaSpring FrameworkREST APIs

Ibm

Associate System Engineer Trainee

Feb 2022 – May 2022 · 3 mos · Bangalore Urban, Karnataka, India · Remote

Led the development and optimization of big data processes using PySpark, efficiently managing large datasets within the Hadoop ecosystem.
Applied the MapReduce programming model to enhance data processing speed and reliability across large clusters.
Gained practical experience with AWS, deploying services on EC2 instances.
Demonstrated expertise in a diverse technical stack, with a focus on Python and Java.

Big DataPython (Programming Language)Core JavaHadoopMapReduceHive+1