S

Sachin A.

Engineering Manager

South Delhi, Delhi, India9 yrs 1 mo experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led frontend efforts at Housing.com.
  • Revamped housing.com, improving performance metrics significantly.
  • Expert in building scalable web applications.
Stackforce AI infers this person is a Frontend Architect in the E-commerce sector with a focus on performance optimization.

Contact

Skills

Core Skills

ReactFrontend DevelopmentJavascriptPerformance OptimizationApi DesignSoftware Development

Other Skills

WebpackBabelESLintMicro FrontendsGraphQLService WorkersNext.jsApollo ClientCloudfrontJenkinsCSSHTMLUI DevelopmentData StructuresAlgorithms

About

Experienced Software Engineer with a demonstrated history of working in e-commerce, leisure, travel & tourism industry. Skilled in API design & development, web development in React, jQuery, Javascript ES6, NodeJs, Data Structures, and Java. Strong engineering professional with a Bachelor's Degree focused in Computer Science from Vellore Institute of Technology.

Experience

9 yrs 1 mo
Total Experience
3 yrs
Average Tenure
6 yrs 7 mos
Current Experience

Housing.com

3 roles

Engineering Manager

Promoted

May 2022Present · 4 yrs · Gurugram, Haryana, India

  • Leading the frontend efforts at housing. Currently building scalable server rendered micro frontends, with independent deployments/rollback & custom version management. Building next gen & highly performant web using awesome tools like Babel, webpack, react, eslint, linaria.
ReactWebpackBabelESLintMicro FrontendsFrontend Development

Software Development Team Lead

Promoted

Jun 2019Aug 2020 · 1 yr 2 mos · Gurgaon, Haryana, India

  • Leading a Team of 6.
  • 6. Recently revamped housing.com to latest tech from ground up to clear a long pending technical debt.
  • Lighthouse score improved from 55 to 89 (94 without third party scripts).
  • Page Load times (First CPU Idle time) decreased from 5.5 to 3.6s.
  • JS & CSS size reduced from 300 to 125KB. Optimized for long term caching.
  • HTML size reduced from 200 to 15 - 30 KB. (achieved using Critical CSS, JS lazy loading & GraphQL
  • against API over-fetching)
  • Service workers for complete offline experience, along with background sync for offline conversions.
  • Differential serving of JS bundles (38% reduction in JS sizes in modern v/s legacy browsers).
  • Combined SSR data fetching techniques from Next.js & Apollo Client for modularity, better code
  • splitting & lazy loading.
  • SSR of first fold for users and complete page for bots.
  • Dynamic content caching on Cloudfront. Reduced server load and TTFB significantly. Normalized
  • cache keys by handling parameters like device, users/bots, A/B tests, differential JS bundles, query
  • string normalization with Lambda@Edge using Serverless.
  • Choosing & setting up necessary stack for our use cases (Webpack 4, Redux, React 16 with SSR &
  • hooks, & Apollo GraphQL server).
  • Setting up build, release processes and monitoring systems (Datadog + Sentry).
  • Jenkins pipelines for CI/CD integrations with Github.
  • Ongoing projects: Webp compression on nginx. GraphQL query uglification Babel Plugin for cacheable
  • GET requests. HTTP2 server push POC on Nginx & Akamai. Preact POC (SSR on React) on
  • Housing.com. Micro-Frontend POC using Webpack 5 Module Federation.
JavaScriptGraphQLService WorkersNext.jsApollo ClientCloudfront+2

Senior Software Development Engineer

Jan 2018Jun 2019 · 1 yr 5 mos · Gurgaon, Haryana, India

Paytm

Software Engineer

Jun 2017Dec 2017 · 6 mos · Noida Area, India

Via.com

2 roles

Software Engineer

May 2015May 2017 · 2 yrs · Bengaluru Area, India

  • Worked on different products like Flights, Train, Car with involvement & interest in API design & implementation, UI development
API DesignUI DevelopmentSoftware Development

Intern

Jan 2015Apr 2015 · 3 mos · Bengaluru Area, India

Education

Vellore Institute of Technology

Bachelor's Degree — Computer Science

Jan 2011Jan 2015

Modern Vidya Niketan Sr. Sec. School

High School — PCME

Jan 2004Jan 2011

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