Zia U.

Full-Stack Engineer

Avatar placeholder
Lahore, Pakistan

Experience

Dec 2024 - Present
1 year 1 month
United States

Full-Stack Engineer

Ecolink

  • Built multi-tenant real-time communication workflows for agencies by integrating Action Cable, WebSockets, and Turbo Streams, enabling live call routing, chat, SMS, and compliance logging.
  • Developed scalable Rails-based architecture supporting integrations with RingCentral and AMS360.
  • Delivered responsive UX without custom JavaScript using the Hotwire stack (Turbo Frames + Turbo Streams), improving accessibility across all screens and driving 50% higher customer engagement.
  • Integrated Slack bot to generate bi-weekly user reports in PDF and CSV formats, reducing the manual effort of compiling active user statistics by 80%.
  • Built and delivered features in Agile teams with a TDD approach, collaborating closely with design, product, and QA to achieve sprint goals. Test Drive Development, Stimulus
Jan 2023 - Dec 2024
2 years
United States

Full-Stack Engineer

Intellirent

  • Refactored legacy Rails architecture using advanced metaprogramming and DRY principles, delivering a 33% performance gain and lowering server costs.
  • Automated applicant screening with REST API integrations (Stripe, Experian), reducing manual work by 30%. Software Development Lifecycle, AWS Cloud Environments, Technical Troubleshooting, Code Review
  • Restructured relational schemas with ActiveRecord, resolving memory issues (23% improvement) while ensuring ACID compliance.
  • Accelerated debugging by 50% using structured logging and real-time monitoring tools such as Papertrail and Airbrake.
  • Wrote unit tests using RSpec for critical modules, improving test coverage and reducing production bugs in legacy refactored components.
Jun 2022 - Jan 2023
8 months
Singapore

Software Engineer

Biomark

  • Reduced codebase size by 12% using hash-based metaprogramming in Ruby on Rails, achieving O(1) time complexity in key workflows.
  • Developed HIPAA-compliant pipelines using HL7 APIs, enabling secure healthcare data exchange and reducing manual processing by 47%.
  • Automated onboarding workflows and designed modular healthcare microservices, boosting team productivity by 70% and developer efficiency by 30%.
Jun 2021 - Jun 2022
1 year 1 month
Wilmington, United States

Software Engineer

Saas LTV Growth

  • Migrated REST endpoints to Shopify GraphQL API and implemented CI/CD pipelines via GitHub Actions, reducing server load by 36% and accelerating release cycles.
  • Optimized background job queues with Redis batch processing, eliminating N+1 query issues and improving resource use by 43%.
  • Implemented product customization features (engraving, swatches, image uploads), increasing customer engagement by 37% and boosting merchant revenue.
  • Reduced LCP (Largest Contentful Paint) by 72% via Redis caching and backend query optimization in MVC architecture.

Summary

Full Stack Engineer with 4+ years of experience building secure, high-performance web applications across real estate, healthcare, and e-commerce domains. Skilled in both modern and legacy systems with a strong focus on performance optimization, database tuning, and API-driven development. Improved system speed by 33% and team efficiency by 70% through query tuning and workflow automation. Committed to clean code, scalable architecture, and remote collaboration.

Languages

Urdu
Native
English
Intermediate

Education

Namal College - Associate College of University of Bradford

Bachelor of Science · Computer Science · United Kingdom

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