Senior Frontend Developer 5+ Years (Mandatory)
thinQit
5 - 10 years
Mumbai
Posted: 17/02/2026
Job Description
UI Architecture Performance System Aware Frontend
Experience: 5+ Years (Mandatory)
We are a product engineering company building a large scale, microservices based platform with multiple role driven portals including Admin, Tenant, Customer, Supplier, and Designer.
Frontend is a core system at our company. It is not a styling layer. We build frontend systems that are scalable, performant, and deeply aligned with backend APIs and production infrastructure.
We hire senior frontend engineers who think in terms of architecture, performance, and product ownership, not just components and screens.
We are looking for a Senior Frontend Engineer (5+ years experience) to take strong ownership of frontend architecture and UI quality across our platform.
This role requires deep hands on experience in Next.js, React.js, and CSS, along with solid awareness of Docker and frontend related DevOps workflows.
You will be responsible for designing, building, and evolving production grade frontend systems used by real customers.
This is not a pixel only UI role.
This is a system aware, architecture driven frontend role.
Own frontend architecture and long term scalability
Build high performance, production grade user interfaces
Design reusable, maintainable UI systems
Ensure UI consistency, accessibility, and UX quality
Collaborate closely with backend and DevOps teams
Take accountability for frontend performance and reliability
Lead frontend technical decisions and improvements
Minimum 5 years of frontend development experience
Strong hands on expertise in Next.js and React.js
Strong hands on UI development using CSS (Flexbox and Grid)
Proven experience building large scale, production grade frontend applications
Backend aware mindset with API driven frontend experience
Working knowledge of Docker and frontend DevOps workflows
Strong ownership mindset. Frontend is your product
Mandatory hands on experience with:
Next.js (routing, layouts, SSR, CSR, ISR)
React.js (modern patterns and hooks)
TypeScript and modern JavaScript
Strong understanding of:
Component driven and feature based architecture
Frontend performance optimisation
Bundle size, rendering behaviour, and memoisation
Scalable UI component systems
Strong command over:
CSS
Responsive layouts using Flexbox and Grid
UI consistency and accessibility best practices
Experience building complex dashboards and data heavy UIs
Experience with multi role and permission driven interfaces
Ability to translate product requirements into intuitive UI flows
Familiarity with design systems and Figma to code workflows
Hands on experience with Redux Toolkit or similar solutions
Clear separation of UI state and server state
Ability to refactor complex frontend state into maintainable patterns
Strong experience consuming REST APIs in microservices based systems
Understanding of API contracts, pagination, filtering, and error handling
Frontend handling of authentication and role based access
Ability to collaborate with backend teams on API design
You are not required to build backend services, but you must think backend aware.
Working knowledge of Dockerised frontend applications
Understanding of environment based configuration
Awareness of frontend build pipelines and CI CD concepts
Understanding of deployment, caching, and runtime behaviour
Ability to debug frontend issues in production environments
Clean, modular, and maintainable code
Strong separation of concerns
Comfortable working in large production codebases
Experience with code reviews and incremental refactoring
Ability to manage and reduce technical debt
Take ownership of frontend quality and architecture
Participate in technical decision making
Mentor junior engineers when required
Raise frontend engineering standards
A Senior Frontend Engineer with 5+ years of experience, strong expertise in Next.js, React.js, and CSS, proven experience building large scale production UIs, solid API and backend awareness, working knowledge of Docker and frontend DevOps workflows, and the mindset to own frontend architecture and UI quality end to end.
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