I turn ideas into smooth, scalable products enhanced by AI, built with strong testing, clean architecture, and responsive design that drive performance and engagement.
Zia Ur Rehman
FullStack Software Developer with 4+ years of experience delivering high-performance web applications across real estate, healthcare, e-commerce, and call-center industries. Proficient in Ruby on Rails, React, and Django, with expertise in RESTful/GraphQL API design, MVC architecture, and both relational (PostgreSQL, MySQL) and non-relational (Firebase, Redis) databases.
Skilled in building real-time communication systems with ActionCable, WebSockets, and Hotwire/Stimulus, and integrating HIPAA-compliant healthcare solutions with HL7 APIs. Adept at modernizing legacy platforms, optimizing system performance, and designing scalable architectures that support seamless integrations and long-term growth.
My Resume4+
Years Experience
15+
Projects Delivered
4+
Live Products
150+
Features Integrated
3+
Production Experience
24/7
Support Available
Currently Working On
Prompt Engineering
Designing effective prompts to guide AI models in generating accurate and relevant responses for various applications.
MCP-Based Web App
Building a web application that leverages Multi-Channel Processing (MCP) to enhance user interactions and data handling across different platforms.
Chat Bot Enhancement
Upgrading chat bots with MCP-driven intelligence to improve conversational abilities and user engagement.
Automation Flow
Creating seamless automation workflows that integrate MCP for efficient task management and execution.
System Architecture
Exploring Rails’ bottlenecks and how to overcome them with service-oriented design and background processing.
Turbo Stream, Hotwire & Stimulus Deep Dive
Understanding Turbo’s internals to build more dynamic, real-time UIs with less JavaScript.
Turbo-Based Broadcasting
Shifting from ActionCable to Turbo Streams for real-time updates with less overhead and complexity.
Override Scaffolding
Customizing Rails scaffolding to generate code that fits specific project needs and coding standards.
Achievements
Full-Stack Engineer | California – Remote
Ecolink – Communication Platform for Insurance Agencies
Dec 2024 – Present
- Built multi-tenant real-time communication workflows using ActionCable, WebSockets, and Turbo Streams for live call routing, chat, SMS, and compliance logging.
- Developed scalable Rails architecture supporting integrations with RingCentral and AMS360.
- Delivered responsive UI/UX using the Bootstrap framework, improving engagement by 50%.
- Integrated Slack bot to automate bi-weekly user reports (PDF/CSV), reducing manual effort by 80%.
- Extended session duration from day to week and re-engineered the subscription reset and refresh flow to ensure long-term integration stability
- Collaborated cross-functionally in Agile sprints with design, product, and QA teams.
Full-Stack Engineer | Texas – Remote
Intellirent – Real Estate & Rental Marketing
Jan 2023 – Dec 2024
- Refactored legacy Rails architecture using DRY principles, delivering a 33% performance gain.
- Automated applicant screening via REST API integrations (Stripe, Experian), reducing manual work by 30%.
- Optimized relational schemas with ActiveRecord, improving memory use by 23%.
- Accelerated debugging by 50% using structured logging and monitoring (Papertrail, Airbrake).
- Enhanced test coverage with RSpec for critical modules, reducing production bugs.
Software Engineer | Singapore – Remote
Biomark – Healthcare Connectivity Platform
June 2022 – Jan 2023
- Reduced codebase size by 12% using hash-based metaprogramming, achieving O(1) complexity in key workflows.
- Developed HIPAA-compliant pipelines using HL7 APIs, reducing manual data processing by 47%.
- Automated onboarding workflows and modularized healthcare microservices, improving productivity by 70%.
Software Engineer | Wilmington – Remote
SaaS LTV Growth – E-commerce Revenue Optimization
June 2021 – June 2022
- Migrated REST endpoints to Shopify GraphQL API and implemented CI/CD via GitHub Actions, reducing server load by 36%.
- Optimized Redis batch processing queues, resolving N+1 queries and improving efficiency by 43%.
- Delivered product customization features (engraving, swatches, uploads), increasing customer engagement by 37%.
- Reduced LCP by 72% using Redis caching and database indexing optimizations.
Projects
EcoLink is a cloud communications platform integrating RingCentral with agency management systems like AMS360, enabling seamless call routing, SMS, voicemails, and compliance for insurance agencies.
Intellirent is a B2B paperless transactions software for residential leasing. Automated rental marketing and tenant screening software providing secure paperless transactions for residential leasing.
PC enabling merchants to offer unlimited product customization, including custom fields like engravings, color swatches, image uploads, and more, with interactive visuals and premium upcharges, boosting revenue and personalization.
BioMark is a platform that helps patients, doctors, and labs stay connected and updated with secure data transmission between them.
Local Serv is an AI-powered service marketplace that enables customers to seamlessly book and purchase local services such as car washing and home renovation through natural AI-driven conversations. Built with Databutton, it showcases rapid prototyping with generative AI—transforming service discovery into an intuitive, conversational experience.
Skills
I have extensive experience working with a variety of technologies as a developer. I've developed and maintained multiple projects using these technologies, and I'm always eager to learn more.
Languages
Ruby
Python
Dart
JavaScript
TypeScript
Frameworks & Libraries
Rails
Django
React.js
Flutter
Material-UI
Bootstrap
Tailwind CSS
Databases
PostgreSQL
MySQL
Firebase
Redis
Cloud & DevOps
AWS
Heroku
DigitalOcean
Docker
Jenkins
Tools & APIs
Shopify API
GraphQL
Ngrok
Postman
Work Experience
Devsinc
Senior Software Engineer
Jan 2024 – Present
Intellirent
Full Stack Software Engineer
Jan 2023 – Dec 2024
Biomark
Software Engineer
June 2022 – Jan 2023
Saas LTV Growth Fund
Software Engineer
June 2021 – June 2022
Let's Build Together
Share what you need, whether it’s a new build, integration, automation, deploy, or bug fix. You’ll hear back from me within one business day.