Haroon Khan Rails • Full-Stack
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Available for roles • Remote / UAE • Rails + Full-Stack

Senior Ruby on Rails Engineer building fast & scalable web applications

Senior Ruby on Rails Engineer focused on scalable back-ends, clean architecture, and polished UI. I ship production features end-to-end: APIs, databases, cloud, performance, and modern front-end.

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5+
Years building web apps
Rails
APIs • Admins • SaaS
AWS
Docker • CI/CD • Deploy
Haroon Khan — Senior Ruby on Rails Engineer
Haroon Khan
Senior Ruby on Rails Engineer
Dubai / Remote • Rails • APIs • Cloud
Rails APIs & Services Payments & Webhooks PostgreSQL Optimization Deployments & CI/CD
Contact Featured work
Email
ror.haroon@gmail.com
WhatsApp
+92 313 420 9115
Location
Pakistan • UAE-ready
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About

I’m a Ruby on Rails engineer with a strong focus on backend development and building scalable, production ready web applications. I have hands-on experience working on e-commerce platforms, booking systems, admin dashboards, and API-driven products, where I’ve delivered features, improved performance, resolved critical issues, and strengthened system reliability. I enjoy writing clean, maintainable code, collaborating with teams, and building systems that teams can confidently operate and scale.

What you get when you hire me

  • Production-quality Rails (service objects, jobs, caching, background processing)
  • Clean APIs (REST), proper validations, documentation, and testing
  • Database performance (PostgreSQL tuning, indexes, query optimization)
  • Cloud & deploy (Docker, CI/CD, AWS/Heroku/DigitalOcean)
  • Modern front-end (Bootstrap/Tailwind, React/Vue when needed)

Quick info

RoleSenior Ruby on Rails Engineer
FocusAPIs • SaaS • Admin dashboards • Performance
StackRails • PostgreSQL • JS • AWS • Docker
AvailabilityOpen to roles & consulting
Hire Me Projects

Tech Stack

Tools I use to build reliable, scalable systems end-to-end.

Back-end

Ruby on RailsREST APIsSidekiq/JobsAuthRSpecPerformance

Data

PostgreSQLMySQLRedisIndexingQuery OptimizationMigrations

Cloud & DevOps

AWSDockerCI/CDHerokuDigitalOceanMonitoring

Front-end

JavaScriptHTMLCSSBootstrapTailwindReactVue

Tooling

GitPostmanLinuxSentry/LogsDocumentationCode Review

Featured Projects

Real products I built and shipped backend, payments, booking rules, and SEO-focused delivery.

PsychCura — Mental Health Platform

Full-stack • Booking rules • Firebase • Admin Dashboard • SEO

Built a psychotherapy platform with real-time appointment booking, a secure backend, and a responsive admin dashboard optimized for SEO and global access.

  • Implemented real-time booking logic to prevent double bookings and enforce slot availability.
  • Designed a modern admin dashboard for client/session tracking with clean UX patterns.
  • Improved performance + SEO foundations (metadata, structure, mobile-first responsiveness).
FirebaseJavaScriptBookingSEOUI/UX
Live Code

Rise & Shine Tourism — Booking Website

Web App • Booking Management • Performance • SEO

Developed the official tourism website and a custom booking management system to streamline reservations and improve customer experience.

  • Shipped responsive, mobile-first UI with optimized loading and clean structure.
  • Built booking flows that improved operational efficiency and reduced manual work.
  • SEO improvements for better discoverability (pages, metadata, structure, speed).
HTMLCSSBootstrapJavaScriptSEO
Live Code

MedHunter — Tele-education Marketplace

Ruby on Rails • Payments • Scheduling • Deployments

Worked on core marketplace features including class bookings, payments, schedules, and user flows for a tele-education platform.

  • Integrated Stripe + Asaas for automated billing, subscriptions, and payment status updates.
  • Delivered marketplace workflows: booking, scheduling, and reliable user journeys.
  • Managed Heroku deployments (pipelines, staging/prod configs, logs, addons, optimization).
RailsPostgreSQLStripeAsaasWebhooksHeroku
Live Code

Workplace Check-in — HR System

Web App • HR Automation • Performance Management

An HR performance management system designed to save time, reduce cost, and boost productivity with automation-first workflows.

  • Built structured workflows to automate recurring HR tasks and reporting.
  • Focused on maintainability, clear UI patterns, and real-world usability.
  • Delivered a product-style experience aligned with business operations.
Web AppAutomationUI/UXOps
Live Code

Code Samples

Most of my work is private or client-owned. Code samples are available upon request.

Experience

Backend-focused Ruby on Rails experience with payments, deployments, and real-world product delivery.

Software Engineer — Rise & Shine Tourism

Jan 2025 — Oct 2025 · Dubai

Web • Booking Management • Performance • Responsive UI • SEO

  • Designed and developed the official company website to improve brand presence and customer engagement.
  • Built and maintained a custom booking management system to streamline reservations and reduce manual operations.
  • Optimized performance and mobile UX to improve retention and conversions across devices.

Ruby on Rails Engineer — MedHunter (Remote)

Sep 2022 — Dec 2024 · Remote

Rails • Marketplace • Bookings • Payments (Stripe/Asaas) • Heroku Deployments

  • Developed core marketplace workflows: class bookings, schedules, and user flows for a tele-education platform.
  • Integrated Stripe + Asaas, enabling subscriptions, automated billing, and real-time payment status updates.
  • Owned Heroku environment + deployment workflows (pipelines, staging/production configs, logs, addons, performance tuning).

Junior Software Engineer (Ruby on Rails) — EritheiaLabs

Sep 2021 — Aug 2022 · Lahore

Rails • Bug fixing • Feature delivery • Team collaboration

  • Debugged and resolved production issues to ensure stable application performance.
  • Contributed to feature development and incremental UX improvements across modules.
  • Strengthened teamwork practices, delivery habits, and engineering discipline in a real product environment.

Services

I help companies and teams design, build, and maintain reliable web applications using Ruby on Rails. My work focuses on backend systems, APIs, booking and payment workflows, and clean, scalable architectures that support real business needs and long-term growth.

Rails Development

APIs, SaaS, dashboards, background jobs, caching, and clean architecture for long-term maintainability.

Performance & Databases

PostgreSQL tuning, indexes, query optimization, caching strategy, and monitoring to keep apps fast.

Deployments & DevOps

Docker, CI/CD, production deployments on AWS/Heroku/DigitalOcean, and secure environment setup.

Testimonials

Feedback from clients and collaborators highlighting reliability, clear communication, and the quality of delivered work.

“Easy to communicate with, great quality work, hits deadlines, and always gets the job done.”

Bradley Brecher CEO & Founder

“Dedicated developer, strong communication, works well with teams. Highly recommended.”

Amy Renee Client (Australia)

“Reliable and easy to work with. Helped with multiple complex websites.”

David Aleman Client (USA)

Contact

For full-time roles, consulting, or freelance opportunities, feel free to share details and I’ll respond promptly.

Let’s build something great

Share your role requirements, tech stack, and timeline. I can jump in on Rails back-end, full-stack delivery, or performance work.

Email
ror.haroon@gmail.com
WhatsApp
+92 313 420 9115
LinkedIn
/in/haroonkhandev
GitHub
@haroonrana
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