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

Experience

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.

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.

Product Development Engineer II

Aug 2019 – Mar 2024

Onsite

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

Application Developer

May 2017 – Aug 2019

Onsite

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

Skills

Frameworks

Architecture

Performance

Compliance

Cloud & CI

Testing

Around the web

GitHub

9thQuadrant

phaneendracharyulu

StackOverflow

400+ reputation

Dev.to Blog

9thquadrant