Senior Frontend Engineer

Phaneendra

Kanduri

9+ years turning slow, legacy frontends into fast, accessible products for regulated industries and Fortune 500 teams.

2s → 0.2s FCP  ·  20min → 1.5min builds  ·  30s → 5s load

Enterprise SaaS  ·  Healthcare  ·  HR Tech

Open to relocate  ·  Available in 30 days

let's talk!
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Experience

Confluent

Senior Frontend Engineer II

May 2025 – Present

Remote

  • Evaluated and drove adoption of Astro to replace the Sphinx-based documentation platform, reduced build times from 10-20 minutes to 1.5 minutes, enabling faster CI/CD feedback loops and significantly improving developer productivity.
  • Solely own the technical architecture and execution for a documentation platform serving 100,000+ weekly visits. Work with a team of 8 technical writers to deliver content strategy, tooling improvements, and performance optimization.
  • Planned, led, and executed Python 3.8→3.12 migration across the documentation build pipeline and modernized dependency stack, eliminated deprecated packages, and ensured compatibility with latest Sphinx/Astro toolchains.
  • Define and implement CI/CD standards, component library architecture, and cross-functional engineering best practices adopted across documentation and adjacent platform teams.

Hinge Health

Senior Frontend Engineer

Apr 2024 – Apr 2025

Hybrid

  • Evaluated and proposed migration from Gatsby to Astro after identifying performance bottlenecks in the existing GraphQL + Contentful stack, reduced FCP from ~2s to 0.2s in a regulated US healthcare environment serving HIPAA-compliant patient-facing content.
  • Led AWS CloudFront and CDN edge delivery initiative alongside Core Web Vitals observability established production dashboards tracking LCP, CLS, and FID with real-user monitoring (RUM) data.
  • Owned WCAG 2.1 AA compliance and GDPR/data-privacy-aligned development across the frontend platform; collaborated with product and design in Agile sprints to embed accessibility and privacy standards from design through deployment.
  • Led 5-person frontend team; maintained Storybook component library integrated with design system, ensuring consistency and reusability across patient-facing applications.

Phenom

Product Development Engineer II

Aug 2019 – Mar 2024

Onsite

  • Reduced frontend load time from ~30s to ~5s across a product serving 5,000+ active users.
  • Led the Angular v9 → v15 upgrade to standalone components across ~500 components with a team of 12–15 engineers.
  • Built a React PWA from scratch that cut load times by ~30%, and migrated a Chrome extension from vanilla JS to React + TypeScript.
  • Introduced pre-commit hooks and documented common anti-patterns, reducing PR cycle time.
  • Mentored engineers who were subsequently promoted to senior, and delivered WCAG and GDPR features for Fortune 500 EU clients.

Multiplier Solutions

Application Developer

May 2017 – Aug 2019

Onsite

  • Led a 2-person team to build a real-time lead-generating chatbot from scratch, owning stack selection, architecture, and delivery.
  • Built a campaign decision-tree visualizer with D3.js and designed a 2NF schema with JSON serialization.
  • Delivered a VtigerCRM and Vicidial telephony integration.

Skills

Frameworks

  • React
  • Angular 9–15
  • Astro
  • TypeScript
  • JavaScript ES6+

Architecture

  • Micro-frontends
  • Module Federation
  • PWA
  • Component-Based Architecture

Performance

  • Core Web Vitals (FCP/LCP/CLS)
  • Lighthouse
  • Code Splitting
  • Bundle Analysis

Compliance

  • WCAG 2.1 AA/AAA
  • ARIA
  • GDPR
  • Data Privacy

Cloud & CI

  • AWS S3 + CloudFront
  • GitHub Actions
  • Webpack
  • Vite

Testing

  • Jest
  • Cypress
  • React Testing Library

Around the web

GitHub

9thQuadrant

LinkedIn

phaneendracharyulu

Stack Overflow

400+ reputation

Dev.to Blog

9thquadrant