Satyam Pathak

Senior Frontend Engineer / Fullstack Developer (Frontend-Focused)

Web & Mobile-focused engineer with 8+ years of experience building highly scalable frontend applications, complex UIs, and performance-critical systems. Previously worked with OpenInvest (JP Morgan), Postman, Dineout, QAI, and currently a Fullstack Developer at Deel.

8+ Years

Professional Experience

Enterprise-Scale

Products Built

UI Systems

Expert

Performance

Optimization Specialist

Featured at:DeelJP Morgan (OpenInvest)PostmanDineoutQAI

Technical Skills

Languages & Core

JavaScript (ES6+)
TypeScript
Python

Frontend

React
Next.js
Vue.js
Redux Toolkit
React Flow
Tailwind CSS
SASS/SCSS
Bootstrap
D3.js
Micro Frontends
Jest
Cypress
TDD
GraphQL
CKEditor

Backend

Node.js
REST APIs
OpenAPI Codegen
AWS

Architecture & Other

Web Performance
System Design
Frontend Architecture
CI/CD
Accessibility (ARIA)
Webpack

Experience

Deel

Fullstack Developer (Frontend Heavy)

Deel

Jan 2025 – Present

Working on performance optimization and modernizing critical frontend workflows.

  • Reduced the admin app's initial page load time from 19 seconds → under 5 seconds on low-latency networks.
  • Optimized build size from 38 MB → less than 10 MB through bundling strategies and code-splitting.
  • Implemented end-to-end SSO login, significantly enhancing authentication security and reducing login failures.
  • Modernized critical frontend workflows, improving developer performance and UI responsiveness.
ReactTypeScriptNode.jsWebpackPerformance Profiling
OpenInvest (JP Morgan Chase & Co)

Software Development Engineer 3

OpenInvest (JP Morgan Chase & Co)

Sep 2023 – Present

Building real-time tools and automation systems for portfolio management.

  • Built a real-time sync tool using React Flow, Redux Toolkit & D3 — reduced researcher time by 68%.
  • Automated portfolio report generation for 200+ reports, cutting manual effort by 80%.
  • Developed an LLM-powered chatbot for cause creation — increased client interaction by 20%.
  • Reduced REST dependency with type-safe API client (OpenAPI TS Codegen) — improved developer efficiency by 35%.
  • Optimized LCP for 8 MB documents ~4s → ~2.5s.
  • Implemented lazy loading via Intersection Observer — boosted engagement by 12%.
  • Enhanced CKEditor with click-to-edit & crash recovery — improved engagement by 20%.
  • Led team of 4 to build CRUD panel for dynamic theming.
  • Built reusable 37 TDD-compliant components & 12 widgets.
ReactTypeScriptRedux ToolkitD3TDDNode.jsOpenAPI Codegen
Postman

Software Development Engineer 2

Postman

June 2022 – July 2023

Led development of restaurant management and taxation systems.

  • Led team of 5 to build SPA for restaurant management & taxation systems.
  • Built 43+ React TDD components + 21+ pluggable widgets, saving 125+ dev hours.
  • Designed tab-based selection, reducing customer work time by 20%.
  • Improved prefetching → 17% increase in engagement.
  • Scaled B2C usage to 150,000+ daily users.
  • Orchestrated tech talks & cross-team collaboration.
ReactTypeScriptRedux ToolkitNodeSPA ArchitectureTDD
Dineout

Senior Software Engineer

Dineout

Feb 2021 – June 2022

Delivered high-quality React components with focus on accessibility and performance.

  • Delivered pixel-perfect, TypeScript-based React components (TDD).
  • CDN content improvements → 28% engagement increase.
  • Achieved 91% accessibility score through ARIA compliance.
  • Built a time-critical full-stack project with Node.js.
  • Actively reviewed PRs, mentored teammates.
ReactTypeScriptReduxNode.jsAccessibilityTDD
QAI

Software Development Engineer

QAI

June 2018 – Feb 2021

Contributed to frontend development across various technologies.

  • Contributed across frontend technologies: HTML5, CSS3, Webpack, AJAX, JS.
  • Exposure to AWS, NewRelic monitoring, enterprise delivery cycles.
HTML5CSS3JavaScriptWebpackAWS

Key Achievements

8+ Years

Professional Experience

150k+

Daily Users Impacted at Postman

68%

Efficiency Improvement at OpenInvest

19s → 5s

Page Load Reduction at Deel

80%

Manual Effort Reduction via Automation

91%

Accessibility Score at Dineout

125+

Dev Hours Saved with Reusable Components

Education

B.Tech (Computer Science & Engineering)

AKTU

2014 – 2018