About the Role
Techylla is looking for a Senior Frontend Developer who doesn't just write components - who builds experiences people actually enjoy using. This is a role for someone who's already fluent in the modern React ecosystem and wants to bring that craft to fast-moving, client-facing products from day one.
You'll own the front-end architecture for enterprise-grade applications — working with the latest React patterns, performance techniques, and tooling, alongside a team that values clean code, thoughtful UX, and shipping fast without cutting corners. If you're the kind of developer who reaches for the newest stable tooling because it makes the product better (not just because it's new), this role is built for you.
We need someone who can start immediately and hit the ground running — no lengthy ramp-up, no hand-holding on fundamentals.

Why This Role Stands Out
Work with the newest stack: React 19, Next.js App Router, TypeScript, and modern state/data tooling — not a legacy codebase you'll spend a year modernising
Own the front end end-to-end: From architecture decisions to performance and accessibility — your calls shape the product
Direct client visibility: Work closely with US-based stakeholders and see your work ship to real users, fast
Immediate impact: Join a lean, high-trust team where a strong contributor is felt from week one, not lost in process

Must-Have Qualifications
Overall experience: 5 –8 years of hands-on front-end development experience, with strong, demonstrable expertise in React
Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related discipline
Immediate availability: Available to join within 0–15 days — this is a mandatory requirement for this role
1. Core React & Modern Front-End Engineering
React (latest): Strong hands-on experience with React 18/19, functional components, Hooks, Concurrent Rendering, and Suspense
Next.js: Practical experience with the App Router, Server Components, SSR/SSG/ISR, and route-level optimization
TypeScript:



Strong typing discipline across components, hooks, and API contracts
State & data management: Redux or Redux Toolkit for client state, and TanStack Query (React Query) or SWR for server-state/data-fetching
Styling: Tailwind CSS, CSS-in-JS (styled-components/Emotion), or modern CSS Modules with responsive, design-system-driven UI
2. Performance, Quality & Tooling
Build tooling: Vite or Turbopack, module federation/micro-frontend exposure a strong plus
Testing: Jest, React Testing Library, and Playwright or Cypress for end-to-end coverage
Performance engineering: Code-splitting, lazy loading, bundle analysis, Core Web Vitals optimization
Component systems: Experience building or consuming design systems with Storybook
Accessibility: Working knowledge of WCAG standards and semantic, accessible component design
3. Integration & Collaboration
API integration: REST and GraphQL (Apollo Client or urql) consumption experience
Version control & CI/CD: Git-based workflows, PR review discipline, and familiarity with CI/CD pipelines (GitHub Actions, Azure DevOps, or similar)
Cross-functional collaboration: Comfortable working directly with designers, backend engineers, and US-based product stakeholders
Preferred Qualifications
Exposure to micro-frontend architectures (Module Federation, single-spa)
Experience with React Native for cross-platform mobile development
Familiarity with AI-assisted development tools (GitHub Copilot, Cursor) to accelerate delivery
Exposure to Web Components or design tokens for multi-framework design systems
Prior experience in a client-facing or consulting setting

Role & Responsibilities
Design, build, and maintain scalable,



high-performance React applications used by real clients in production
Translate UX/UI designs into pixel-accurate, accessible, and responsive components
Own front-end architecture decisions — state management, folder structure, rendering strategy, and performance budget
Write clean, well-tested, well-documented code and actively participate in code reviews
Optimize applications for speed, accessibility, and cross-browser/cross-device compatibility
Collaborate directly with backend engineers to define and consume APIs (REST/GraphQL)
Contribute to and evolve a shared component/design system
Stay current with the React ecosystem and proactively recommend tooling or pattern upgrades
Communicate progress, blockers, and technical trade-offs clearly to both technical and non-technical stakeholders

Behavioral Attributes
Self-starter who can move fast with requirements
Strong ownership mentality — treats the product like it's their own
Detail-oriented with a genuine eye for UI polish and user experience
Comfortable working directly with clients and handling ambiguity
Curious and current — actively follows the React/front-end ecosystem rather than working off outdated patterns

About Techylla
Techylla is a dynamic IT and Consulting organization with operations in the US and India, building modern digital products for global clients. Our core values — Relationship, Commitment, Integrity, and Collaboration — guide everything we do. We invest in our people through knowledge sharing, growth opportunities, and a culture built on trust and ownership.
If you're a React developer who's ready to join immediately and make an impact from day one, we want to hear from you.

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📌 Senior Frontend Developer (Kolkata)
🏢 Techylla
📍 Kolkata