I am a results-driven Senior Ruby on Rails Backend Developer with over 4 years of experience in designing, optimizing, and scaling high-performance backend systems specifically tailored for healthcare and enterprise applications. I excel in RESTful API development, database optimization, security protocols like OAuth and JWT, as well as cloud-based deployments with AWS and Azure. I am passionate about writing clean code, test-driven development (TDD), and mentoring junior engineers. My proven track record includes reducing technical debt, improving system efficiency, and leading cross-functional Agile teams. I take pride in my ability to maintain and enhance complex Ruby on Rails applications, optimize SQL queries, integrate secure workflows, and deliver production-ready applications using a range of modern technologies.

Mehboob Ur Rehman

I am a results-driven Senior Ruby on Rails Backend Developer with over 4 years of experience in designing, optimizing, and scaling high-performance backend systems specifically tailored for healthcare and enterprise applications. I excel in RESTful API development, database optimization, security protocols like OAuth and JWT, as well as cloud-based deployments with AWS and Azure. I am passionate about writing clean code, test-driven development (TDD), and mentoring junior engineers. My proven track record includes reducing technical debt, improving system efficiency, and leading cross-functional Agile teams. I take pride in my ability to maintain and enhance complex Ruby on Rails applications, optimize SQL queries, integrate secure workflows, and deliver production-ready applications using a range of modern technologies.

Available to hire

I am a results-driven Senior Ruby on Rails Backend Developer with over 4 years of experience in designing, optimizing, and scaling high-performance backend systems specifically tailored for healthcare and enterprise applications. I excel in RESTful API development, database optimization, security protocols like OAuth and JWT, as well as cloud-based deployments with AWS and Azure. I am passionate about writing clean code, test-driven development (TDD), and mentoring junior engineers.

My proven track record includes reducing technical debt, improving system efficiency, and leading cross-functional Agile teams. I take pride in my ability to maintain and enhance complex Ruby on Rails applications, optimize SQL queries, integrate secure workflows, and deliver production-ready applications using a range of modern technologies.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Advanced
Urdu
Fluent

Work Experience

Mid-Senior Ruby on Rails Developer at Next Frontier Labs
June 1, 2021 - Present
Maintained and enhanced PCM’s Ruby on Rails applications for healthcare and pharmacy rebates. Built and secured scalable APIs for React and mobile apps. Optimized SQL queries and background jobs, reducing load times and bottlenecks. Implemented OAuth 2.0, JWT, and role-based access control for backend security. Delivered automated PDF, Excel, and CSV reporting features. Refactored legacy codebases to improve maintainability. Contributed to CI/CD automation using GitHub Actions. Provided mentorship and led backend best practices adoption. Key achievements include scaling core platforms to support thousands of users, successfully integrating secure document workflows, and achieving performance gains via query and job optimization.
React JS Developer at Next Frontier Labs
May 31, 2022 - July 25, 2025
Contributed to NovoConnection.com and other high-traffic React-based projects. Focused on responsive UI, performance tuning, and frontend enhancement. Ensured seamless integration with backend APIs.
Freelance ROR & Flutter Developer at Fiverr & Upwork
April 30, 2020 - July 25, 2025
Developed production-ready applications using Ruby on Rails and Flutter. Repeatedly contributed to NovoConnection.com and similar projects. Built APIs, designed databases, and supported full-stack MVP development.
Mid-Senior Ruby on Rails Developer at Next Frontier Labs
June 1, 2021 - Present
Maintained and enhanced PCM’s Ruby on Rails applications for healthcare and pharmacy rebates. Built and secured scalable APIs for React and mobile apps. Optimized SQL queries and background jobs to reduce load times and bottlenecks. Implemented OAuth 2.0, JWT, and role-based access control for backend security. Delivered automated PDF, Excel, and CSV reporting features. Refactored legacy codebases to improve maintainability. Contributed to CI/CD automation using GitHub Actions. Provided mentorship and led backend best practice adoption. Led integration of secure document workflows and achieved performance gains via query and job optimization.
React JS Developer at Next Frontier Labs
May 31, 2022 - August 9, 2025
Contributed to NovoConnection.com and other high-traffic React-based projects. Focused on responsive UI, performance tuning, and frontend enhancement ensuring seamless integration with backend APIs. Developed production-ready applications using Ruby on Rails and Flutter. Supported full-stack MVP development building APIs and designing databases.
Freelance RoR & Flutter Developer at Fiverr & Upwork
April 30, 2020 - August 9, 2025
Engaged in freelance projects involving Ruby on Rails and Flutter app development, contributing to various client needs and delivering scalable, maintainable solutions.

Education

BS at COMSATS University Islamabad
January 1, 2015 - December 31, 2019
Intermediate at Army Public School and College System
January 1, 2013 - December 31, 2015
BS in Computer Science at COMSATS University Islamabad
January 1, 2015 - January 1, 2019
Intermediate in Computer Science at Army Public School and College System
January 1, 2013 - January 1, 2015

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Software & Internet