Divjot Singh

Product Manager

Bengaluru, Karnataka, India12 yrs 4 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Led significant performance improvements in multiple applications.
Expert in React Native and PWA development.
Strong leadership in managing UI platform teams.

Stackforce AI infers this person is a Fullstack Developer with a focus on SaaS and PWA technologies.

Contact

bogas04@gmail.com LinkedIn

Skills

Core Skills

React NativeCode QualityLeadershipWeb DevelopmentPwa

Other Skills

CC++CSSCascading Style Sheets (CSS)Data AnalysisData StructuresE2E TestingExpoGitGithubHTMLHerokuJavaScriptJestLAMP

About

Experienced Software Engineer with a demonstrated history of working in the computer software industry. Skilled in Full Stack JavaScript, Java, and Unix. Strong engineering professional with a Bachelor's Degree focused in Computer Engineering from Netaji Subhas Institute of Technology, University of Delhi. Besides technology, I'm a vegan and a pacifist.

Experience

Udaan.com

2 roles

Architect (UI)

Jul 2023 – Present · 2 yrs 8 mos

Code Quality
Currently migrating react native barebone app with 400+ screens to expo + expo-router with tasteful compatibility layers, avoiding rewrites.
Rewrote key screens in b2b app to be server driven to reduce development turn around time.
Modernized Market Manager dashboards for easy visibility on key metrics, timeline tracking and a review system.
Developed a workflow analyzer to detect unused legacy screens based on their DAU, assisting in tech debt cleanup. Successfully removed ~100 unused screens, bringing app size down by 50%.
Setup E2E testing for app and web releases to shorter loop between commit and error.
Migrated from webpack to rspack for our webapp for super fast build times.

Code QualityReact NativeExpoE2E TestingWebpack

Lead Software Engineer

Apr 2020 – Present · 5 yrs 11 mos

Management:
Lead a core UI platform team of four very talented developers.
Planned and delivered quarterly roadmaps with data-driven tasks and output
Identified and worked around common problems faced in leading a team (consistent deliverables, team morale, measuring impact, breaking down long running issues, scoping tasks, asynchronous communication, ...).
Individual Contributions:
Reduced react-native codepush bundle size by 20% by optimizing image assets
Improved app startup time by 75% (P90), thus improving conversions to 2nd page by 35%.
Updated internal react-native+react-native-web class based framework to use functional components with specialized hooks. This lead to 3x improvement in app interactivity and responsiveness by reducing mount and runtime cost of components.
Built Year In Review screens for 2020 & 2021.
Deployed a webview fallback for react-native screens for quicker resolution during outages.
Drove improvements for developer experience initiatives by adding CI checks, pre-commit hooks and dev compiler optimizations.
Refactored tightly coupled internal library into individual npm packages in a mono-repo.
Used extensive A/B testing to drive higher (3.6->4.4) app store ratings using a strategically placed prompt.
Revamped udaan's homepage with 60fps animations and better SEO.
Collaborated to make find.udaan.com during 2nd wave of covid19 in India to facilitate in finding essential medicines.
Worked supporting lazy loading of react-native+react-native-web screens.
Worked on an internal framework for creating SSR based React apps (using webpack+node)
Worked on adding systematic changes to allow Animated Skeleton Screens for faster perceived performance on React Native and Web App.
Revamped Order Details Experience for React Native and Web.

LeadershipReact NativeReact.jsTypeScriptWebpack

Swiggy

2 roles

Software Development Engineer 3

Promoted

Nov 2019 – Apr 2020 · 5 mos

Lead the release of Timeline shareability on Swiggy Go.
Lead the release of Swiggy Stores PWA.
Lead the release of Swiggy Single Page Checkout for Food.
Developed new PL driven UI for Swiggy Stores.
Developed new Swiggy Genie.
Developed a system for incorporating Origin Trials for our PWAs, starting with SMS Receiver API & Contacts API .
Deprecated legacy systems and ported the same to modern services.
Regularly worked with and maintained HAProxy configuration.

PWAReactUI Development

Software Development Engineer 2

Jan 2018 – Nov 2019 · 1 yr 10 mos

Designed and developed multi-tenant payments module
Designed and developed website generator (Gauntlet). 10+ dashboards.
Designed and developed static site serving system for legal pages.
Designed Hotstar-Pop integration and scaled codepath for 120k RPM.
Moved codebase to a monorepo for improved developer experience.
Developed automatic UA based asset serving system for smaller bundle sizes. (20%)
Developed Restaurant Hygiene Pages for PWA and as webview for apps.
Developed Everyday Offers Feature for mobile PWA.

Payments ModuleWebsite GeneratorStatic Site ServingWeb Development

Housing.com

Senior Software Development Engineer

Oct 2017 – Jan 2018 · 3 mos · Mumbai Metropolitan Region

Worked on PWA performance.
=> Migrated to React 16 from version 15 for a 50% win for renderToString completion time.
=> Migrated to NodeJS version 8 from version 6 for another 50% win for above.
=> Used brotli for assets to reduce size by another 20%.
=> Minification of images, preferring SVGs over PNGs whenever possible further reduced page size.
=> Using will-change CSS rule, along with disabling pointer-events on scroll helped in improving scrolling performance.
Presented a tech talk at Google Developers' Day Extended (Mumbai), BookMyShow Office. Video: https://youtu.be/lN8b_fXRC_A

PWA PerformanceReactNodeJSPWA

Samsung electronics

Software Engineer

Jun 2016 – Oct 2017 · 1 yr 4 mos · Bengaluru, Karnataka, India

Samsung Internet PC Extension Starting June 2016
=> Revamped the extension codebase by switching to modern JavaScript paradigms, UI overhaul and performance optimizations. Improved localization of strings and helped in rebranding for version 2.0.
=> Successfully shipped version 2.0 in March which received great response (chrome web store rating increased from 2.7 to 3.7 post launch).
=> Userbase increased from 8,000 to 60,000 monthly active users (~8x) within 4 months of 2.0 release.
Gaana Web App Starting March 2017
=> Designed and developed the web application in ReactJS + Redux + Styled-Components (later replaced with Emotion for perf wins).
=> Challenges like performance on low end devices, inter-op between Tizen APIs and Web Platform were tackled along with the team.
=> Successfully launched first phase of app withing MyGalaxy on Tizen in Late May.
Samsung Internet - Bixby April 2017 – July 2017
=> Wrote JSGF gram files for Samsung Internet domain.
=> Helped in bringing accuracy to 95%+ for Bixby US launch.

JavaScriptPerformance Optimization

Fizzy foodlabs pvt. ltd.

Intern - Tech Web Design

Dec 2015 – Jan 2016 · 1 mo · Mumbai Area, India

Developed ReactJS + NodeJS based blog webapp with complex interactions.
Server-side rendering was used for better performance with several webpack plugins to effectively reduce bundle file size.

ReactJSNodeJS

Samsung electronics

Student Trainee

Jun 2015 – Jul 2015 · 1 mo · Bengaluru, Karnataka, India

Convergence Team/Services
Technologies used : Node.JS, Mapnik, MongoDB, TileMill

Ieee

Web Developer

May 2014 – May 2015 · 1 yr · Greater Delhi Area

IEEE NSIT Chapter

Frrole

Frontend Developer Intern

Nov 2013 – Jan 2014 · 2 mos · Greater Delhi Area

Buzzometer
Created an interactive and responsive web app using the APIs of Frrole using jQuery , PHP and XML for analyzing the buzz created by a particular movie.

Refiral

Product Development Engineer

Oct 2013 – Oct 2014 · 1 yr · Gurugram, Haryana, India

Co-founding team member. Managed JavaScript head of the tool.
Key contributions :
Health Report tool for analyzes all clients statistically and constantly check for API health status, hence benefiting in tracking downtimes and losses.
Performance improvements by deploying faster routes to server calls. (300-400ms win)
Expanding support to several e-commerce platforms.
Extending help in creating the internal API. Made its use to make several customizable popouts, providing more options than industry.
Integration with social networks to enable the tool. Studied Facebook documentations to leverage best out of its Graph API.
Helped in strategy and planning of the tool in its initial phase.

Lost beat

Technical Project Manager

Jan 2013 – May 2013 · 4 mos · Greater Delhi Area

Managed LostBeat Me blog based on WordPress. Wrote quick snippets to automate some of the blogging markups.

Collegespace

Technical Head

Oct 2012 – Sep 2014 · 1 yr 11 mos · New Delhi

Created 2 web apps (NSITulatorJS http://divjot.collegespace.in/o/NSITulatorJS/ and CS Downloader) using jQuery and PHP.
Developed 2 websites using Wordpress (faadoocoders.collegespace.in and aap-hai.collegespace.in)