SOFTWARE ENGINEER · FULL STACK

I design and engineer scalable products across React, Hotwire, and Ruby on Rails— modern architectures that perform and endure.

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I DON'T JUST WRITE CODE.

I BUILD

SYSTEMS

PEOPLE USE.

02 — ABOUT

Engineering with intent.

I'm Zaheen Kasim (also known as Mohd Zaheen Kasim), a full-stack software developer with over five years shipping product across SaaS and enterprise platforms. I specialize in migrating legacy applications to modern, server-driven Hotwire architectures— improving performance, maintainability, and the feel of the product itself.

From role-based dashboards to recruitment ecosystems, I work end-to-end: interface, API, data model, and infrastructure. The through-line is a product-focused mindset— systems that stay clear under complexity.

CURRENT FOCUS

Hotwire migrations · React dashboards · Rails platforms · Scalable SaaS

03 — EXPERIENCE

Where the systems were built.

SCROLL TO EXPLORE · 01 / 03

03 / 2024 — PRESENT PUNE, INDIA

Product Engineer

ProMobi Technologies

Migrating a legacy Angular-based MDM platform into a cleaner, server-driven Hotwire architecture— while shipping interactive Rails-backed interfaces and React dashboards for data-heavy workflows.

  • Migrated legacy Angular MDM application to Hotwire (Turbo & Stimulus)
  • Built UI with Turbo Frames, Streams, and Stimulus controllers
  • Developed and optimized Rails + PostgreSQL backend functionality
  • Maintained React components for dashboards, filters, and data-heavy screens
HotwireTurboStimulusReactRailsPostgreSQL
04 — SELECTED WORK

Systems in production.

05 — SYSTEMS

How the pieces connect.

An abstract view of the stacks I ship—from client interfaces through APIs to infrastructure.

CLIENT FRONTEND API APPLICATION DATABASE INFRASTRUCTURE
React / Hotwire Rails / Node PostgreSQL / MongoDB Nginx · AWS S3 · Heroku
06 — STACK

The toolkit.

FRONTEND

BACKEND

DATA

INFRA & TOOLS

SELECT A TECHNOLOGY

Hover or focus a node to inspect the stack.

07 — SHELL

Talk to the system.

zaheen@portfolio:~
$

08 — CONTACT

LET'S BUILD SOMETHING WORTH SHIPPING.

Open to full-stack product roles, Hotwire migrations, and Rails + React platforms. Based in Pune — collaborating remotely worldwide.

START A CONVERSATION
EMAIL zaheenkasim@gmail.com LINKEDIN zaheen-kasim GITHUB zaheenkasim RESUME Download PDF PHONE +91 85747 94320