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Folio i · Software Engineer II

I make frontend developmentfaster and more reliable.

Divyansh Singh builds frontend infrastructure, developer tooling, and CI/CD systems at Rippling.

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कर्मण्येवाधिकारस्ते मा फलेषु कदाचनYou have the right to work—never to its fruits.
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Divyansh Singh
Divyansh SinghSoftware Engineer II · Bengaluru

Folio ii · About me

I improve developer speed and production reliability.

I build the systems other engineers rely on: frontend infrastructure, developer tooling, CI/CD, test reliability, observability, and incident response.

Today I work on Web Infrastructure at Rippling. Before that, I spent four years at Razorpay shipping international payment experiences and building an open-source internationalization SDK now downloaded more than 100,000 times each week.

Build P90
81 → 52m
Import graph
11,516 → 54
Weekly SDK use
100K+

Folio iii · Work experience

Where I’ve worked and what I delivered.

NowCurrent role first · move backward through timeAug 2020

Jun 2025 - Present

Rippling

Current
Software Engineer II, Web Infrastructure

Frontend infrastructure, developer tooling, CI/CD systems, test reliability, and incident response.

Developer speed

  • Reworked eager route imports: 11,516 → 54 modules and 90s → 10.54s finished loading; extended the analysis across six product areas.
  • Moved an internal developer CLI into the frontend monorepo, reached ~100% function coverage, and added independently deployed app support.

CI and test reliability

  • Parallelized safe integration suites across ten domains: build P90 81 → 52m, backend PR P90 76 → 40m, and frontend PR P90 88 → 58m.
  • Built flaky-test detection with 20× reruns, test and module scoring, and Datadog, S3 dashboard, and Slack reporting.

Platform and security

  • Replaced permanent package credentials with 12-hour IAM tokens across three repositories and moved the flow to AWS Secrets Manager.
  • Centralized service ownership for backend, frontend, and mobile; updated Python, JavaScript, and Terraform consumers with CI safeguards.

Observability and incident response

  • Split deployment telemetry into four six-hour recovery windows so missed runs retain complete, duplicate-free data.
  • Automated reporting for 50+ weekly support queries, saving 1–2 hours of manual on-call work each week.
  • Designed owner-first P1 automation from ~90 engagements; 6 of 9 reference-week incidents would avoid paging Web Infrastructure first.
  • Captured bundle failures before RUM, LogRocket, or Sentry startup with a browser beacon and backend endpoint.
ReactTypeScriptAWSDatadogBuildkitePlaywrightSlack API

May 2021 - Jun 2025

Razorpay

Nov 2024 - Jun 2025

Senior Frontend Engineer, Internationalization

International expansion, i18n infrastructure, and payment authentication across Malaysia, Singapore, and India.

  • Shipped region-aware payment flows for Malaysia and Singapore, enabling 530 merchant activations and supporting MYR 80 million in monthly gross merchandise value.
  • Owned the architecture and roadmap for @razorpay/i18nify-js, an open-source internationalization SDK used by 27+ teams and downloaded 100,000+ times per week.
  • Replaced Webpack with Rollup and cut the SDK bundle by 30%; partial imports removed another 1.6 MB from consumer bundles while retaining ESM, CommonJS, and UMD distributions.
  • Added RTL-ready components to the company design system, reaching 19+ product teams, and mentored five frontend engineers who went on to own features independently.
  • Earned four Razorpay SPOT awards for ownership and engineering impact.
Aug 2022 - Oct 2024

Software Development Engineer I

Payment authentication, tokenization, and frontend infrastructure.

  • Shipped a Mastercard biometric authentication experience demonstrated at Global Fintech Fest 2024, improving payment success by 35% over 3DS OTP and increasing card payments by 33%.
  • Cut the time needed to launch a new geography from 8-9 months to one month by extracting reusable internationalization and region-aware platform layers.
  • Created an LLM-assisted static-analysis CLI for localization gaps and region-specific hardcoding, reaching 97.3% accuracy across 1,000+ scenarios and adoption by seven frontend teams.
  • Split the Merchant Dashboard into micro-frontends, reducing build and unit-test time by 67% and end-to-end test time by 70%.
  • Delivered a token lifecycle system for four banks that enabled 800,000+ tokenizations and reduced risk by 40%.
May 2021 - Jul 2022

Frontend Engineer Intern

Payment disputes and fraud detection UI for RazorpayX.

  • Halved payment-dispute resolution time from 20 to 10 minutes.
  • Revamped a risk-management interface, increasing engagement by 33% while reducing load time by 21%.
ReactTypeScriptRollupBlade UIPlaywrightJest

Dec 2020 - Feb 2021

Correlations.ai

SWE Intern

Worked on Login Infrastructure and Mail Templating Services using ReactJS, Flask, and MongoDB.

ReactJSFlaskMongoDB

Aug 2020 - Oct 2020

TagHive Inc.

Android Developer Intern

Contributed to the Android development of Class Saathi, an ed-tech app by TagHive (South Korea).

AndroidJava

Aug 2020First engineering role

Folio iv · Skills

Technologies I use across frontend and infrastructure.

Frontend Development

  • ReactJS5+ years
  • TypeScript5+ years
  • Redux4+ years
  • Zustand3+ years
  • JavaScript4+ years
  • HTML6+ years
  • CSS6+ years

UI Templating Libraries

  • Material-UI3+ years
  • Blade UI2+ years
  • Semantic UI2+ years
  • Chakra UI2+ years

Observability & DevOps

  • Datadog1+ year
  • Sentry2+ years
  • Buildkite1+ year
  • Playwright2+ years
  • Bash3+ years

Backend & Infrastructure

  • AWS1+ year
  • Flask2+ years
  • Firebase3+ years
  • Node.js3+ years

Tools & Build Systems

  • Git5+ years
  • Rollup2+ years
  • Webpack3+ years
  • Slack API1+ year

Folio v · Projects

Open-source tools and products I’ve built.

100K+ weekly downloads

i18nify-js

Open-source JavaScript, React, and Go internationalization monorepo with automated testing, modular documentation, and 100,000+ weekly npm downloads.

JavaScriptRollup
npm GitHub

N/A

CompliQ - Accessibility Simulator

Simulate accessibility issues like color-blindness, keyboard navigation, and screen readers to build inclusive web experiences. A powerful Chrome extension that helps developers and designers visualize and test web accessibility issues in real-time.

JavaScript
Extension GitHub

N/A

DOMinator

DOMinator is a powerful Chrome extension designed for web developers that transforms how you interact with and analyze the Document Object Model (DOM). This developer tool provides an intuitive interface for visualizing, navigating, and modifying webpage structures with advanced features like AI-powered explanations and suggestions.

JavaScript
Extension GitHub

N/A

ReRoute

A modern Chrome Extension that allows you to define URL redirect rules and automatically apply them when matching URLs are visited.

JavaScript
Extension GitHub

Folio vi · Articles

Published articles.

Production investigations, browser internals, and engineering experiments.

01Frontend InfrastructureYour CDN Cache Didn't Poison Itself: How Deployment Polling Services Silently Break CORS~15 min read02Browser InternalsHow Does DevTools Actually Pause Your Code at a Breakpoint? The V8 Inspector Protocol Nobody Understands~15 min read03AII Let Claude & GPT-4 Play My Board Game Until It Was Bug-Free18 min readBrowse all articles

Folio vii · Authored books

Books I wrote for frontend engineers.

Full Spectrum JavaScript book coverEbook · By Divyansh Singh · 200+ copies soldFull Spectrum JavaScriptJavaScriptWeb DevelopmentView book CSS Unmasked -- Styling Secrets They Never Told You book coverEbook · By Divyansh Singh · 50+ copies soldCSS Unmasked -- Styling Secrets They Never Told YouJavaScriptWeb DevelopmentView book Frontend System Design Decoded book coverEbook · By Divyansh Singh · 70+ copies soldFrontend System Design DecodedSystem DesignFrontendView book

Folio viii · Testimonials

Feedback from engineers and leaders I’ve worked with.

“I had the pleasure of working with Divyansh during their internship as a ReactJS Developer at Razorpay. Divyansh consistently demonstrated excellent attention to detail and a strong ability to complete tasks on time. Their dedication to delivering high-quality work was evident in every project they tackled. Divyansh is a reliable, diligent, and talented developer, and I highly recommend them for any web development role”

“I was mentoring Divyansh when he joined Razorpay into my team. He is a quick learner has good problem solving skills. He was able to take on complex tasks in no time. He quickly on boarded into the team and was participating in team exercises instantly. He was able to take a complex module and finish it off without much oversight.”

“Divyansh Singh is an outstanding professional who I had the privilege of working with on the Admin Dashboard project. He is smart, hardworking, and detail-oriented. Divyansh's approach to problem-solving, by breaking it down into manageable parts, impressed me. As a key team member, he made significant contributions and was always humble and easy to communicate with. Divyansh is a quick learner and a diligent worker, consistently delivering tasks on time with clean and readable code. He is goal-oriented, passionate about learning, and thrives on challenging territories. His humor and collaborative nature make him a pleasure to work with. I highly recommend Divyansh and would love to work with him again given the opportunity.”

“I mentored Divyansh when He was an intern. He had been a very quick learner and got the grasp of technologies as well as codebases very quickly. I loved his keenness for learning new things from time to and grow.”

Divyansh's motorcycle packed for a long ride
My motorcycle · Ready for the next long ride

Folio ix · Outside engineering

What keeps me curious away from work.

Long rides, cosmic questions, cinematic worlds, and making videos keep me curious outside engineering.

From the channel

Ride films and field notes from the road.

@rgndunes
Rishikesh River Rafting | The Rapids of Rishikesh | White Water Adventure on the GangaThe Green Abyss of South India | Suryanelli | 500+ KM Non-Stop Ride on my Honda CB350Brahmatal Trek | The Land of Forests & Snow | A Himalayan Winter Adventure

Folio x · Contact

Let’s talk about frontend infrastructure.

rgndunes@gmail.com
GitHubLinkedInX / TwitterYouTube