Software Development Engineer (SDE) Intern — Frontend / Full-Stac at FirstHire
Remote · Mumbai, Maharashtra, India · intern
Practice the Software Development Engineer (SDE) Intern — Frontend / Full-Stac interview at FirstHire with an AI interviewer: voice, live coding and a scorecard.
Skills the interview covers
- JavaScript (ES6+)
- React.js
- HTML5
- CSS3
- REST APIs
- JSON data structures
- asynchronous programming
- Git
- GitHub
About the role
Develop responsive, modular, and high-performance UI components using modern frontend technologies (React.js, JavaScript ES6+, HTML5, CSS3). Integrate backend RESTful APIs with efficient state handling and asynchronous data flow. Implement mobile-first layouts with smooth micro-interactions and cross-browser compatibility. Optimize web performance, asset delivery, and Core Web Vitals (LCP, CLS, FID) for speed. Collaborate using Git / GitHub workflows (branching, PR reviews, documentation). Debug, test, and maintain clean, production-ready codebase. Students or recent graduates (B.E./B.Tech, BCA, MCA, B.Sc CS or equivalent self-taught experience). Solid understanding of JavaScript (ES6+), React fundamentals (Hooks, Lifecycle, Virtual DOM), and modern CSS (Flexbox / Grid). Hands-on project experience: At least 1–2 working web applications or open-source repositories deployed on GitHub/Vercel. Familiarity with REST APIs, JSON data structures, and asynchronous programming (Promises / Async-Await). Fast learner with strong analytical thinking, attention to detail, and a builder mindset.