Senior Software Engineer II — Next.js

GeekyAnts is a design and development studio that specializes in building solutions for web and mobile that drive innovation and transform industries and lives. They hold expertise in state-of-the-art technologies like React, React Native, Flutter, Angular, Vue, NodeJS, Python, Svelte and more.

GeekyAnts has worked with around 500+ clients all across the globe, delivering tailored solutions to a wide array of industries like Healthcare, Finance, Education, Banking, Gaming, Manufacturing, Real Estate and more. They are trusted tech partners of some of the world's top corporate giants and have helped small to mid-sized companies realize their vision and transform digitally. They are also the registered service suppliers for Google LLC since 2017.

They provide services ranging from Web & Mobile Development, UI/UX design, Business Analysis, Product Management, DevOps, QA, API Development, Delivery & Support and more.

In addition to that, GeekyAnts is the brains behind React Native's most famous UI library; NativeBase (15000+ GitHub Stars), BuilderX, Vue Native, Flutter Starter, apibeats and hold numerous other Open Source contributions to their name. GeekyAnts has offices in India (Bangalore) and the UK (London)

We are seeking a hands-on Senior Software Engineer II – React / Next.js to build and scale production-grade web applications. This role is ideal for engineers with strong fundamentals in JavaScript, TypeScript, and modern web architecture, who can work across the stack using Next.js (App Router, RSC, API Routes) on the frontend and Node.js/Express on the backend. You will focus on performance, reliability, and clean code design while collaborating with cross-functional teams to deliver high-quality features.

Key Responsibilities:

• Design, develop, and maintain front-end and back-end modules using Next.js, Node.js, and Express.
• Implement SSR, SSG, ISR, and edge deployments (Vercel / Cloudflare) for performant, resilient applications.
• Build and integrate REST and GraphQL APIs, ensuring efficient communication between client and server.
• Optimize web performance, including Core Web Vitals, Lighthouse scores, bundle size, and runtime efficiency.
• Leverage CDNs, caching layers (Redis, Cloudflare), and best practices in client-server architecture.
• Ensure code quality through unit and integration tests using tools such as Jest and Playwright.
• Collaborate closely with design, backend, and DevOps teams to deliver secure, scalable features.
• Participate in code reviews, uphold engineering best practices, and improve overall code quality.
• Mentor junior developers, provide technical guidance, and help drive architectural decisions.
• Contribute to system design discussions with a focus on scalability, fault tolerance, and maintainability.

Skills & Qualifications:

• Experience:

  4+ years of experience in full-stack web development.

• Languages & Fundamentals:

  Strong foundation in JavaScript, TypeScript, ES6+, and browser internals.

• Frontend:

  Expertise in React 18+ and Next.js 13+ (App Router, Server Components, Server Actions, API Routes).

• Backend:

  Good knowledge of Node.js, Express.js, and RESTful API design principles.

• Databases:

  Experience with PostgreSQL/MySQL and ORMs such as Prisma or Sequelize; exposure to Redis is a plus.

• Styling & UI:

  Familiarity with Tailwind CSS, Shadcn UI, or Styled Components for building modern interfaces.

• Architecture & Scaling:

  Understanding of client-server architecture, CDN usage, caching strategies, load balancing, and basic fault tolerance.

• Performance & Optimization:

  Hands-on experience with performance tuning, Core Web Vitals, and bundle optimization.

• Testing & Quality:

  Experience with unit and integration testing (Jest, Playwright or similar frameworks).

• DevOps & Tooling:

  Familiarity with Git, CI/CD pipelines, and deployments on platforms like Vercel, AWS, or Dockerized environments.

• Problem-Solving:

  Strong debugging skills, analytical thinking, and a system-design mindset.

• Collaboration:

  Ability to work effectively in cross-functional teams and communicate technical concepts clearly.

Good to Have:

• Exposure to GraphQL, WebSockets, or Server-Sent Events (SSE) for real-time features.
• Experience with serverless deployments (Vercel functions, AWS Lambda, Cloudflare Workers).
• Understanding of authentication and authorization flows (JWT, OAuth).
• Additional experience with testing tools such as Vitest or Cypress.

You’ll Thrive in This Role If You:

• Have a strong end-to-end understanding of how web applications work (DNS, CDN, HTTP, rendering).
• Think in terms of architecture and trade-offs, not just implementation details.
• Enjoy building clean, performant, and maintainable applications from the ground up.
• Take ownership of features, care about user experience, and continuously look for ways to improve the system.

This will be a Virtual AI Interview.

Make sure your entire screen is shared and you are using a Laptop

• Please keep your updated resume along
• Ensure your phone is on silent mode to avoid interruptions.
• This round will include just a basic communication assessment

Wishing you the very best!