Summary
Overview
Work History
Education
Skills
Websites
Core Expertise
Technical Stack
Work Preference
Personal Information
Timeline
CustomerServiceRepresentative
Chrisbion Silas Ebenezer Samuel

Chrisbion Silas Ebenezer Samuel

Software Engineer
San Jose,CA

Summary

Senior Software Engineer specializing in frontend architecture and platform design, with 15+ years of experience building scalable, high-performance web systems serving millions of users. Expertise in React, TypeScript, SSR, schema-driven UI frameworks, GraphQL integrations, AI-enabled workflows, and CI/CD automation. Proven track record of modernizing large-scale frontend ecosystems, driving cross-functional alignment, and delivering measurable performance and accessibility improvements across complex enterprise environments.

Overview

15
15
years of professional experience

Work History

MTS 1 (Senior Frontend Engineer)

eBay Inc.
San Jose, CA
06.2022 - Current
  • Led frontend architecture, accessibility compliance, and performance modernization across SEO Navigation and Browse systems serving millions of users.
  • Architected Nexus Playground, an AI-driven, schema-based SSR component platform in TypeScript, enabling reusable, WCAG 2.1 AA-compliant UI systems across multi-repo environments.
  • Migrated legacy modules to a unified schema-driven architecture, reducing frontend duplication by ~40% and embedding automated accessibility validation in CI (axe-core, Jest, Cypress).
  • Partnered with AI/ML teams to integrate model outputs into frontend workflows, accelerating iteration and validation cycles by ~85%.
  • Optimized image delivery (adaptive WebP/JPEG), reducing payload by up to 9.8MB and improving LCP by ~300ms.
  • Modernized CI/CD pipelines (Jenkins → VIP CI), reducing build failures by >50% and improving deployment reliability.
  • Tech Stack: React, MarkoJS, TypeScript, SSR, GraphQL, schema-driven UI systems, Node.js, REST APIs, Vite, Webpack, Jenkins/VIP CI, Web performance optimization.

Senior Frontend Developer (Apple Online Store Client)

Infosys Limited
Sunnyvale, CA
08.2020 - 06.2022
  • Served as frontend technical lead for enterprise-scale initiatives supporting Apple Online Store platforms, delivering accessibility-first React solutions.
  • Architected complex checkout enhancements (split payments, loyalty redemption, regional integrations including Alipay and WeChat) with full WCAG 2.1 AA compliance and keyboard/assistive technology support.
  • Led redesign of the Online Self Service platform using a data-driven, API-powered UI architecture with semantic HTML, ARIA live regions, and accessible error-state handling.
  • Established frontend standards including accessibility enforcement (eslint-plugin-jsx-a11y), CI-based validation, and scalable component architecture guidelines.
  • Collaborated cross-functionally with product, backend, and design teams to deliver high-impact, pixel-accurate, accessible production releases.
  • Tech Stack: React, TypeScript, JavaScript (ES6+), REST APIs, Cypress, Jenkins CI/CD, modular component architecture.

Software Engineer

StubHub Inc.
San Francisco, CA
07.2019 - 05.2020
  • Owned frontend architecture decisions for marketplace features impacting 1M+ daily users and $5B+ annual revenue, maintaining accessibility across core purchase and seller workflows.
  • Developed high-volume React/Redux applications with emphasis on accessible state transitions, focus restoration, and screen-reader-friendly dynamic updates.
  • Led a team of 6 engineers to enhance the seller experience across core platform workflows, ensuring keyboard operability and consistent accessible interaction patterns.
  • Integrated automated accessibility validation into CI workflows to prevent regressions and improve UI quality.
  • Collaborated cross-functionally with product and design to deliver roadmap initiatives with scalable, accessible UI implementations.
  • Tech Stack: React, Redux, JavaScript (ES6+), SCSS, Jest, Cypress, Jenkins CI integration.

Frontend Developer

Infosys Limited
Sunnyvale, CA
09.2016 - 07.2019
  • Developed responsive, accessibility-compliant UI components using React, semantic HTML5, JavaScript (ES6+), and SCSS, with ARIA best practices and keyboard support.
  • Translated business and UX requirements into pixel-perfect, keyboard-operable frontend implementations across multiple enterprise modules.
  • Integrated RESTful APIs and optimized client-side performance for high-traffic user workflows while preserving accessible interaction patterns.
  • Collaborated closely with onsite and offshore teams to ensure timely feature delivery and consistent accessibility quality.
  • Contributed to test automation using Cypress and supported release cycles through CI workflows.
  • Tech Stack: React, JavaScript (ES6+), HTML5, SCSS, RESTful APIs, Cypress, CI workflows.

Technology Analyst

Infosys Limited
Bangalore
02.2011 - 09.2016
  • Gathered requirements and translated business needs into scalable, accessibility-aware frontend solutions.
  • Implemented enterprise-grade applications using semantic HTML5, CSS3, and JavaScript with attention to accessible patterns and cross-browser compatibility.
  • Conducted unit and integration testing, and supported post-release production issues with a focus on UI correctness and usability.
  • Tech Stack: HTML5, CSS3, JavaScript, enterprise web application development, unit and integration.

Education

Bachelors Degree - Computer Engineering

Anna University

Skills

  • Frontend Architecture & System Design
  • High-Performance Web Applications
  • CI/CD Pipeline Design & Automation
  • SEO Optimization & Core Web Vitals
  • Component Libraries & Design Systems
  • Server-Side Rendering (SSR) & Island Architecture
  • Micro-Frontend Patterns
  • DevOps Collaboration & Deployment Strategy
  • Cross-Functional Technical Leadership
  • Scalable UI Engineering
  • React
  • MarkoJS
  • TypeScript
  • JavaScript (ES6)
  • Redux
  • HTML5
  • CSS3
  • SCSS
  • LESS
  • Storybook
  • Vite
  • Webpack
  • Gulp
  • Jenkins
  • GitHub Actions
  • Jest
  • Cypress
  • Vitest
  • Puppeteer
  • Playwright
  • Nodejs
  • REST APIs
  • JSON
  • CI/CD Pipelines
  • Git
  • SVN
  • Figma
  • Abstract
  • Quip
  • Box

Core Expertise

  • Frontend Architecture & System Design
  • High-Performance Web Applications
  • CI/CD Pipeline Design & Automation
  • SEO Optimization & Core Web Vitals
  • Component Libraries & Design Systems
  • Server-Side Rendering (SSR) & Island Architecture
  • Micro-Frontend Patterns
  • DevOps Collaboration & Deployment Strategy
  • Cross-Functional Technical Leadership
  • Scalable UI Engineering

Technical Stack

React, MarkoJS, TypeScript, JavaScript (ES6+), Redux, HTML5, CSS3, SCSS, LESS, Storybook, Vite, Webpack, Gulp, Jenkins, GitHub Actions, Jest, Cypress, Vitest, Puppeteer, Playwright, Node.js, REST APIs, JSON, CI/CD Pipelines, Jenkins, Git, SVN, Figma, Abstract, Quip, Box

Work Preference

Work Type

Full Time

Location Preference

On-SiteRemoteHybrid

Personal Information

I’m a Senior Software Engineer specializing in frontend architecture and scalable web platforms, with over 15 years of experience building high-performance applications for companies like eBay, Apple (via Infosys), and StubHub. My expertise includes React, TypeScript, server-side rendering, accessibility (WCAG 2.1), and performance optimization for large-scale user platforms serving millions of users. I enjoy solving complex UI and platform challenges, improving developer workflows, and delivering reliable, accessible user experiences. I’m currently based in San Jose, California and open to opportunities where I can contribute to building scalable, high-quality frontend systems.

Timeline

MTS 1 (Senior Frontend Engineer)

eBay Inc.
06.2022 - Current

Senior Frontend Developer (Apple Online Store Client)

Infosys Limited
08.2020 - 06.2022

Software Engineer

StubHub Inc.
07.2019 - 05.2020

Frontend Developer

Infosys Limited
09.2016 - 07.2019

Technology Analyst

Infosys Limited
02.2011 - 09.2016

Bachelors Degree - Computer Engineering

Anna University
Chrisbion Silas Ebenezer SamuelSoftware Engineer
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