Open to opportunities

Tarun Kushwaha

@tarunkushwaha

Senior Frontend Engineer and Team Lead specializing in high-performance, accessible React/Next.js systems for B2B AI SaaS.

India

Message

What I'm looking for

I’m looking for a B2B product team where I can own frontend architecture, lead via mentorship, and drive performance, accessibility, and automated testing—especially in React/Next.js systems with multi-tenant or regulated workflows.

I’m a Senior Frontend Engineer and Team Lead with 4+ years shipping production React.js/Next.js systems for a B2B AI SaaS company serving 50+ enterprise clients. I’ve been promoted three times—from the first frontend hire to team lead—by owning system design, multi-tenant architecture, and performance-focused front-end engineering.

As team lead, I lead a team of 4–6 through code reviews, 1:1s, and architectural mentorship, while setting standards for resilient UI architecture. I also architected a cloud-to-on-premises migration for regulated-industry clients and built a custom tenant-aware feature flag system to remove external SaaS dependency and licensing overhead.

I’m a deep specialist in performance engineering, accessibility, and automated testing. I’ve reduced API call volume by 85% using RTK Query (tenant-scoped cache keys, optimistic updates, and granular invalidation), improved Time to Interactive via routing/state refactors and code-splitting, and delivered Playwright-based testing with 75% E2E coverage to reduce regression risk.

Experience

Work history, roles, and key accomplishments

Current

Team Lead & Senior React JS Developer

Current

Fluid AI (FluidGPT)

Jan 2025 - Present (1 year 6 months)

Led frontend engineering for a team of 4–6, owning system design, architecture standards, code reviews, and technical mentorship across a multi-tenant enterprise SaaS platform. Architected a cloud-to-on-premises migration and reduced API call volume by 85% by re-architecting server state management with RTK Query.

TypeScript Redux toolkit ConfigCat Alternative Cloud Migration Cache Invalidation

Senior React JS Developer

Fluid AI (FluidGPT)

Aug 2024 - Dec 2024 (4 months)

Designed and shipped core architecture for a multi-tenant AI SaaS platform across modules with RBAC and tenant data isolation. Built a visual Agentic Workflow editor and launched a Playwright automated testing suite achieving 75% E2E coverage.

TypeScript RBAC Data Isolation Visual Workflow React Flow Playwright

React JS Developer

Fluid AI (FluidGPT)

Jan 2022 - Jul 2024 (2 years 6 months)

Bootstrapped the company’s first production frontend from zero, building a multi-tenant conversational AI interface and establishing component architecture, state patterns, and deployment pipeline. Developed an accessible React + TypeScript UI component library with WebRTC and Web Speech API integrations, and optimized Core Web Vitals for small-screen mobile form factors.