Hamid
Raza

Ruby on Rails - Full Stack Developer

Seasoned Full Stack Engineer with 10+ years of experience in Ruby on Rails and 2+ years building backend services with NestJS and TypeScript. Skilled in designing, developing, and optimizing scalable healthcare and eCommerce web applications. Proficient in building secure RESTful and GraphQL APIs, integrating healthcare data standards (FHIR/HL7), and ensuring HIPAA compliance.

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Get In Touch View Experience
Hamid Raza
Phone
+92 322 4513443
Email
mr.hamid.raza@gmail.com
LinkedIn
linkedin.com/in/hamidraza84-rubyonrails
Location
Lahore, Pakistan
Expertise

Technical Skills

A comprehensive toolkit honed over 10+ years of full stack development

Backend & Frameworks

Ruby on Rails NestJS TypeScript Solidus / Spree RESTful APIs GraphQL TypeORM Domain-Driven Design

Frontend & Real-Time

React.js Vue.js Hotwire / Turbo ActionCable Bootstrap SASS / SCSS

Databases & Performance

PostgreSQL MySQL Redis Elasticsearch N+1 Elimination Query Optimization

Background & Processing

Sidekiq ActiveJob RabbitMQ Caching (Redis) Fragment Caching

DevOps & Cloud

AWS Docker Heroku CI/CD GitHub Actions Jenkins

Payments & Healthcare

Stripe / Connect PayPal Adyen FHIR / HL7 HIPAA Compliance RBAC
Career Path

Work Experience

10+ years building scalable web applications globally

Senior Backend Developer
Valus.io
2024 - Present Saudi Arabia
Current
  • Architecting scalable Rails 7 APIs for a large-scale eCommerce grocery platform serving millions of users
  • Hands-on ownership of Solidus/Spree commerce domains (orders, inventory, promotions, pricing, taxes, shipments, returns)
  • Implemented real-time order tracking and notifications using ActionCable, backed by Sidekiq
  • Performance tuning across large datasets (N+1 elimination, Redis caching, pagination strategies)
  • AWS-based deployments and CI/CD pipelines with focus on reliability and observability
Rails 7SolidusRedisSidekiqAWSActionCable
NestJS Backend Developer
Freelance
Jan 2024 - PresentRemote
Freelance
  • Built RESTful API backends for client projects using NestJS, TypeScript, and TypeORM with PostgreSQL
  • Developed CAST4k Reseller Panel backend with Stripe payment integration, subscription management, license key generation, and reseller onboarding
  • Created a personal finance tracking application with budget management, transaction categorization, and reporting
  • Implemented JWT authentication, role-based access control, input validation with class-validator, and Swagger API documentation
NestJSTypeScriptTypeORMPostgreSQLJWTSwagger
Senior Backend Developer
Tractive
2022 - 2024Austria
  • Developed backend infrastructure for a real-time GPS pet tracking system
  • Designed Rails APIs for location and event data with low-latency responses
  • Optimized database performance and reduced hot-path overhead through caching
  • Contributed to event-driven workflows integrating RabbitMQ with Rails services
RailsRabbitMQPostgreSQLRedisGPS Tracking
Full Stack Developer
Doc.gr
2022 - 2023Greece
  • Built healthcare-focused appointment scheduling and doctor-patient management platform
  • Implemented HIPAA-compliant workflows, secure patient data handling, and audit processes
  • Integrated FHIR/HL7 healthcare data exchange standards through Rails API layers
RailsReact.jsFHIR/HL7HIPAASidekiq
Senior Backend Developer
SpaceOS
2021 - 2022Poland
  • Developed intelligent workplace automation platform with IoT integration and multi-tenant SaaS
  • Implemented real-time notifications using ActionCable and Turbo Streams
RailsActionCableTurboIoTMulti-tenant
Full Stack Developer
Borderhaul
2021 - 2022USA
  • Built logistics and freight platform connecting shippers with cross-border carriers
  • Automated payouts via Stripe Connect; real-time shipment tracking with ActionCable
RailsStripe ConnectActionCableLogistics
Senior Full Stack Developer
Coeus Solutions
2018 - 2021Pakistan
  • Led Rails SaaS development end-to-end: data modeling, API design, background jobs, production hardening
  • Built scalable REST APIs, multi-currency payment gateways, and Hotwire/Turbo UI
  • Introduced performance improvements via caching, query optimization, and service objects
RailsHotwireREST APIsPaymentsSaaS
Ruby on Rails Developer
Lightprint.com & Various Projects
2008 - 2018USA / Pakistan
  • Delivered multiple Rails applications across healthcare, printing, food delivery, education, and SaaS domains
  • Built platforms including Videochatapro.com, Pressedgarments.com, Bringmethat.com, Ubergrad.com, Visitdays.com, and Seedlr.com
RailsWebRTCStripeTwilioElasticsearchMulti-tenant
Portfolio

Featured Projects

Applications built across diverse industries and geographies

Valus.io

Large-scale eCommerce grocery platform serving millions of users. Built with Rails 7, Solidus/Spree, real-time order tracking, and AWS infrastructure.

Rails 7SolidusRedisAWS

Tractive

Real-time GPS pet tracking system with low-latency APIs, event-driven workflows via RabbitMQ, and optimized database performance.

RailsRabbitMQGPSReal-time

Doc.gr

Healthcare appointment scheduling and doctor-patient management with HIPAA compliance, FHIR/HL7 integration, and real-time booking.

RailsReactFHIRHIPAA

SpaceOS

Intelligent workplace automation platform with IoT integration, multi-tenant SaaS architecture, and real-time notifications via ActionCable.

RailsIoTSaaSTurbo

Borderhaul

Logistics and freight platform connecting shippers with cross-border carriers. Stripe Connect payouts and real-time shipment tracking.

RailsStripeLogistics

CAST4k Reseller Panel - Freelance

Backend reseller management panel for the CAST4k IPTV platform. Features Stripe payment integration, subscription management, reseller onboarding, license key generation, usage analytics, and role-based access control.

NestJSTypeScriptStripeTypeORMPostgreSQLJWT

FinLedger - Freelance

Personal finance tracking application with budget management, transaction categorization, monthly reports, and expense analytics. Built with NestJS backend and JWT authentication.

NestJSTypeScriptJWTREST API

Seedlr.com

Multi-tenant SaaS platform for digitizing real-life experiences into workflows. RBAC, custom feature toggles, and event marketplace.

RailsRBACSaaSMulti-tenant
Education

Academic Background

Master's in Software Project Management
FAST National University (NUCES)
2012 - 2014
Bachelor of CS & Engineering (BCSE)
University of Engineering and Technology (UET)
2002 - 2006
Communication

Languages

English
Proficient
Urdu
Native