Senior Full-Stack Engineer (Next.js)

Cogneet; Delhi; Hybrid; INR 2,800,000 - 4,000,000; Full time

Benefits offered by this job

Hybrid work

Learning budget

Medical insurance

Leave 24 days

Job summary

Cogneet is seeking a Senior Full-Stack Engineer to lead multiple Next.js and TypeScript projects, from data model to production. This hands-on role sits in a small senior team where you write code daily, review PRs, and participate in client workshops with strategists and performance marketers.

You bring six or more years building for the web, deep Next.js App Router knowledge, strong SQL with Postgres, and a disciplined testing habit using Playwright.

Qualifications

• Six or more years building for the web, including three or more with React and TypeScript in production.
• Depth in the Next.js App Router: Server Components, static generation, caching and on-demand revalidation.
• Sound relational data design and SQL — Postgres preferred.
• A testing habit: unit tests, end-to-end tests in Playwright and accessibility checks.
• Clear written English — you will explain trade-offs to clients who are not engineers.

Responsibilities

• Build marketing sites, customer portals and CRMs in Next.js and TypeScript, from the data model to production.
• Model content in a headless CMS and Postgres so editors can publish, preview and schedule without a developer.
• Keep every release inside its budgets — Core Web Vitals, WCAG 2.2 AA and security headers — with checks that run in CI.
• Build the measurement layer with the growth team: GA4 events, server-side conversions and the CRM integrations that show which leads closed.
• Review pull requests, pair with two mid-level engineers and write the handover notes clients keep.

Skills

React

TypeScript

Next.js

PostgreSQL

Playwright

CI/CD

English comms

Education

Bachelor's or higher in CS/CE

Tools

Git

CMS (Payload/ Sanity etc.)

Job description

About the role

Cogneet’s Software & Technology practice builds the websites, CRMs and web apps our clients run their business on. As Senior Full-Stack Engineer you lead two or three builds at a time in Next.js and TypeScript, from the content model to production.

It is a hands‑on role in a small senior team: you write code most days, review your colleagues’ pull requests and join client workshops with the strategists and performance marketers who will use what you build.

What you’ll do

• Build marketing sites, customer portals and CRMs in Next.js and TypeScript, from the data model to production.
• Model content in a headless CMS and Postgres so that editors can publish, preview and schedule without a developer.
• Keep every release inside its budgets — Core Web Vitals, WCAG 2.2 AA and security headers — with checks that run in CI.
• Build the measurement layer with the growth team: GA4 events, server‑side conversions and the CRM integrations that show which leads closed.
• Review pull requests, pair with two mid‑level engineers and write the handover notes clients keep.

What you’ll bring

• Six or more years building for the web, including three or more with React and TypeScript in production.
• Depth in the Next.js App Router: Server Components, static generation, caching and on‑demand revalidation.
• Sound relational data design and SQL — Postgres preferred.
• A testing habit: unit tests, end‑to‑end tests in Playwright and accessibility checks with axe.
• Clear written English — you will explain trade‑offs to clients who are not engineers.

Nice to have

• Payload CMS, or another headless CMS such as Sanity, Strapi or Contentful.
• CRM integrations: HubSpot, Zoho, Salesforce or a custom API.
• An LLM feature in production, such as retrieval‑augmented search over a client’s own documents.

What we offer

• Hybrid working: three days a week at our Faridabad office.
• A laptop of your choice on day one and a home‑office allowance in your first month.
• A learning budget of ₹60,000 a year, or the local equivalent, and two paid study days.
• Medical insurance for you, your partner and your children from day one, and an annual health check.
• 24 days of paid leave plus public holidays.
• A written career framework, with reviews every six months and pay tied to it.

We share the salary range on the first call; it is set by the role’s level in our career framework, not by what you earn today.