Deveshwar Jaiswal

< Staff-Track Frontend · Platform Engineering · Varanasi, IN />

Building org-wide frontend systems that scale across teams. Auth SDKs, Web Components, framework migrations — turning fragmented implementations into reusable platforms that move organizations forward.

Deveshwar Jaiswal Memoji

Born in
Kashi's Fire

I'm a Senior Software Engineer operating at Staff-level scope, focused on frontend systems that scale across organizations. From Varanasi — the world's oldest living city — I carry an engineer's precision with a philosopher's patience.

At PhysicsWallah, I design and own shared frontend platforms: an in-house Auth SDK across multiple products, Lit-based Web Components spanning Angular, React, Astro, and vanilla environments, and architectural migrations that deliver real business impact.

"I don't just build UIs — I build the systems that teams build UIs with."

Beyond code: I run a YouTube channel, collect anime figurines, explore mythology, chant mantras, and believe deeply in the karma of clean, thoughtful engineering.

Kashi-Born Engineer

Raised in Varanasi, the city of moksha and eternal fire. That timeless quality — building things meant to last — shapes how I approach frontend systems.

Gaming
Swimming
Drawing
Food Hunt
Temples
Astrology
Numerology
Gadgets
Anime
Mythology
Mantras
Figurines

The Stack &
The Systems

Frontend Architecture

System Design Platform Engineering SDK Design API Contracts Monorepos Design Systems

Frameworks & Runtimes

React Angular Astro Next.js Lit (Web Components) Ionic

Performance & Web Vitals

Core Web Vitals LCP Optimization Lighthouse Bundle Analysis SEO Architecture CLS / FID

Build & Tooling

Vite Bun Farm Webpack esbuild Turborepo

Languages

TypeScript JavaScript (ES2024+) HTML5 CSS3 / PostCSS Node.js

Leadership & DX

Technical Mentorship Architectural Reviews Developer Experience Cross-team Alignment RFC Writing

Where I've
Created Impact

Nov 2021 — Present · 4+ Years

Senior Software Engineer

PhysicsWallah (PW) — India's fastest growing EdTech unicorn

  • Designed and owned an org-wide Authentication SDK used across multiple customer-facing products and internal tools — standardizing auth flows and reducing duplicated logic across the org.
  • Led POC and rollout of Lit-based Web Components as shared UI primitives across Angular, React, Astro, and internal tooling ecosystems.
  • Drove Angular → React and Next.js → Astro framework migrations for revenue-critical platforms, improving SEO, performance, and DX.
  • Architectural and performance optimizations delivering massive Lighthouse gains:
    📈 Mobile Score: 44 → 88 ⚡ LCP: 22.9s → 2.7s
  • Defined frontend performance standards, tooling conventions, and maintainability guidelines adopted across teams.
  • Mentored and guided 5–6 engineers, influencing architecture and technical decisions beyond direct ownership.
  • Championed modern build tooling (Vite, Bun, Farm) — reducing CI build times and improving developer feedback loops.
  • More on LinkedIn — let's connect to chat about the details!

Apr 2021 — Nov 2021 · 8 Months

Frontend Lead

PenPencil Company — New Delhi

  • Owned frontend delivery across web, mobile, and desktop applications using Angular and Ionic.
  • Trained interns and new joiners, establishing team conventions and code quality standards.
  • Led technical scrums, UX flows, and coordinated across engineering and product.

Jan 2019 — Mar 2021 · 2+ Years

Software Engineer (Frontend)

PenPencil Company — New Delhi

  • Built and maintained cross-platform applications using Angular 8–9, Ionic 4, and TypeScript.
  • Implemented payment gateway integrations, API systems, and responsive cross-platform UI.
  • Managed async flows, performance optimizations, and supported a team of junior devs and testers.

YouTube
Channel

Beyond Code & Karma

@beyondcodekarmadeva

Where frontend engineering meets ancient wisdom. I explore system design, modern frameworks, Hindu mythology, karma philosophy, and the deeper patterns connecting technology and consciousness.

System Design Frontend Architecture Frameworks & Tools Hindu Mythology Karma & Philosophy Coding Deep Dives

Let's Build
Something Great

Open to Global Remote Roles

Currently targeting Staff / Principal Frontend Engineer roles where frontend systems, platform thinking, and cross-team impact matter.

Open to remote and global opportunities. If you're building something where frontend is treated as a systems discipline — let's talk.