Senior Frontend Developer

Insightstap Solutions (opc); Kolkata District; On-site; INR 2,600,000 - 3,800,000; Full time

Benefits offered by this job

Provident Fund

Mediclaim/ESIC

Flexible timings

Job summary

InsightsTap is seeking a Full‑time, onsite Frontend Developer (Kolkata, India) with 5+ years of experience. You will own the frontend layer across client and internal products, building performant, responsive React/Next.js interfaces that integrate with FastAPI backends, Supabase, and Stripe.

You'll implement production-ready UI, optimize performance, and collaborate with backend services. The role emphasizes accessibility, testing, and modern frontend tooling in a dynamic team environment.

Qualifications

• JavaScript (ES6+) and TypeScript knowledge.
• React and Next.js (App Router, SSR/SSG/ISR).
• Async data fetching and form handling (Axios, TanStack Query, React Hook Form, Zod).
• Git, semantic HTML, and WCAG basics.

Responsibilities

• Build production apps using Next.js (App/Pages Router) and React; implement responsive, accessible layouts from designs using Tailwind CSS.
• Consume FastAPI RESTful APIs; integrate Supabase client libraries (Auth, Realtime, Storage) and Stripe SDKs.
• Manage client-side state (Zustand, Context API) and build validated forms using React Hook Form and Zod.
• Optimize Core Web Vitals (SSR/SSG, lazy loading) and write unit tests (Jest, React Testing Library).

Skills

JavaScript

TypeScript

React

Next.js

Tailwind CSS

REST APIs

Zustand

React Hook Form

Zod

Jest

React Testing Library

Git

Tools

Express.js

FastAPI

Redux Toolkit

Jotai

Storybook

Docker

CI/CD

Vercel

PWA

Job description

Role - Senior Front End Developer

Location - New Town, Kolkata

Role Summary

InsightsTap is seeking a Full‑time, onsite Frontend Developer (Kolkata, India) with 5+ years of experience. You will own the frontend layer across client and internal products, building performant, responsive React/Next.js interfaces that integrate with FastAPI backends, Supabase, and Stripe.

Key Responsibilities

• Development & UI: Build production apps using Next.js (App/Pages Router) and React; implement responsive, accessible layouts from designs using Tailwind CSS.
• API & Integrations: Consume FastAPI RESTful APIs; integrate Supabase client libraries (Auth, Realtime, Storage) and Stripe SDKs.
• State & Forms: Manage client-side state (Zustand, Context API) and build validated forms using React Hook Form and Zod.
• Optimization & Testing: Optimize Core Web Vitals (SSR/SSG, lazy loading) and write unit tests (Jest, React Testing Library).

Technical Skills

Must‑Have

• Languages: JavaScript (ES6+) and TypeScript.
• Frameworks: React and Next.js (App Router, SSR, SSG, ISR, middleware).
• Data & Forms: Asynchronous fetching (Axios, TanStack Query); form handling (React Hook Form, Zod).
• Tools & Standards: Git/PR workflows, semantic HTML, and WCAG web accessibility basics.

Good‑to‑Have

• Backend exposure (Express.js, understanding of FastAPI architecture).
• State management (Redux Toolkit, Jotai) and UI component tools (Storybook).
• Experience with LLM‑powered UI patterns (streaming text, chat interfaces).
• DevOps basics: Docker, CI/CD (GitHub Actions, Vercel), and PWA concepts.

Why Join Us

• Opportunity to work with a dynamic team in fascinating projects.
• 5 days office (Monday to Friday) with Flexible timings.
• We offer competitive compensation alongside standard security benefits, including Provident Fund (PF) contributions and comprehensive Mediclaim/ESIC coverage.