General Summary:

The Principal Software Engineer I is responsible for developing high-quality, innovative, fully performing software in compliance with coding standards. This individual works in partnership with cross-functional teams to ensure that software deliverables, including designs, codes, and tests, are completed in a timely manner, while remaining aligned with industry and organizational standards.

Essential Duties & Responsibilities:

1. Platform Architecture & Strategy

Define and evolve the frontend platform architecture (React, TypeScript, micro-frontends if applicable)
Establish patterns for:
Component architecture (atomic / design system-driven)
State management (Redux Toolkit, Zustand, server state via React Query, etc.)
Make build vs buy decisions for UI tooling

2. Design System & Component Platform

Lead development of a scalable design system
Ensure:
Accessibility
Internationalization (i18n)
Theming and white-labeling capability
Maintain reusable component libraries (Storybook, tokens, primitives)
Enable cross-product UI consistency

3. Developer Experience (DX) & Tooling

Build and maintain:
Monorepo tooling
CLI tools and scaffolding generators
CI/CD pipelines for frontend apps
Optimize:
Build performance
Test pipelines
Local developer setup
Standardize linting, formatting, and code quality practices

4. Performance & Scalability

Define and enforce performance budgets (Core Web Vitals)
Lead optimization across:
Bundle size (code-splitting, tree-shaking)
Runtime performance
Rendering strategies
Implement observability for frontends:
RUM tools (Dynatrace, Datadog, New Relic, etc.)

5. Architecture Governance

Act as the technical authority for frontend/UI decisions
Conduct architecture reviews and POC evaluations
Define coding standards and engineering guidelines
Mentor senior engineers and influence cross-team decisions

6. Micro-Frontend & Platform Integration

Define strategies for:
Micro-frontends (Module Federation, SPA composition)
Shared dependencies and versioning
Build robust integration patterns with backend services (GraphQL/REST/BFF)
Ensure platform scalability across teams and products

7. Security & Compliance

Enforce frontend security best practices:
CSP, XSS prevention
Secure auth flows (OAuth, OIDC)
Work with platform/security teams on compliance requirements

8. Leadership & Influence

Act as a multiplier across teams, not just an individual contributor
Influence product and business decisions via technical insight
Represent frontend engineering in executive-level discussions
Drive engineering culture and innovation

Knowledge, Skills, and/or Abilities Required:

8+ years of software engineering experience with deep expertise in React & modern frontend ecosystems
Proven experience building frontend platforms or large-scale UI systems
Strong knowledge of:
TypeScript, modern JavaScript (ES2025+)
React internals, hooks, rendering lifecycle
Next.js / SSR / edge architectures
Experience with:
Monorepos and build tooling
Design systems and component libraries
Demonstrated experience influencing org-wide architecture

Key Traits

Systems thinker with platform mindset
Strong bias for standardization and reuse
Ability to balance long-term strategy with execution
Excellent communication and stakeholder alignment skills

Success Metrics

Adoption rate of platform components across teams
Reduction in frontend build & deployment times
Improvement in Core Web Vitals
Developer productivity (onboarding time, PR velocity)
Reduction in UI inconsistencies across products

Typical Tech Stack (2026)

React 18+, TypeScript
design tokens
GraphQL / BFF layer
Storybook for component development
Playwright / Jest for testing

Working Conditions: Pune (Hybrid)

Principal Software Engineer I - Platform (ReactJS)