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Hi, I'm Patrick Ruan, a professional software developer based in Chicago, IL. I specialize in partnering with teams to develop and maintain web-based applications using technologies like Ruby on Rails, React, and JavaScript. With experience in backend engineering and full stack development, I've contributed to payment gateway solutions and higher education applications. I enjoy implementing scalable and efficient code, developing data connectors, and improving authentication protocols. I'm passionate about leveraging my skills to create innovative solutions in software development while continuously learning and growing in the field.…Hi, I'm Patrick Ruan, a professional software developer based in Chicago, IL. I specialize in partnering with teams to develop and maintain web-based applications using technologies like Ruby on Rails, React, and JavaScript. With experience in backend engineering and full stack development, I've contributed to payment gateway solutions and higher education applications. I enjoy implementing scalable and efficient code, developing data connectors, and improving authentication protocols. I'm passionate about leveraging my skills to create innovative solutions in software development while continuously learning and growing in the field.

Patrick Ruan

Web Developer, Full Stack Developer, Programmer, +1

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Hi, I'm Patrick Ruan, a professional software developer based in Chicago, IL. I specialize in partnering with teams to develop and maintain web-based applications using technologies like Ruby on Rails, React, and JavaScript. With experience in backend engineering and full stack development, I've contributed to payment gateway solutions and higher education applications. I enjoy implementing scalable and efficient code, developing data connectors, and improving authentication protocols. I'm passionate about leveraging my skills to create innovative solutions in software development while continuously learning and growing in the field.…Hi, I'm Patrick Ruan, a professional software developer based in Chicago, IL. I specialize in partnering with teams to develop and maintain web-based applications using technologies like Ruby on Rails, React, and JavaScript. With experience in backend engineering and full stack development, I've contributed to payment gateway solutions and higher education applications. I enjoy implementing scalable and efficient code, developing data connectors, and improving authentication protocols. I'm passionate about leveraging my skills to create innovative solutions in software development while continuously learning and growing in the field.

Available to hire

Hi, I’m Patrick Ruan, a professional software developer based in Chicago, IL. I specialize in partnering with teams to develop and maintain web-based applications using technologies like Ruby on Rails, React, and JavaScript. With experience in backend engineering and full stack development, I’ve contributed to payment gateway solutions and higher education applications.

I enjoy implementing scalable and efficient code, developing data connectors, and improving authentication protocols. I’m passionate about leveraging my skills to create innovative solutions in software development while continuously learning and growing in the field.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Software Engineer at PayPal

June 30, 2025 - August 13, 2025

Worked primarily as a backend engineer on the Braintree Gateway, specifically on the Pay With Venmo team. Extended the authorization window feature for a major merchant, Sephora, enabling Venmo transactions to live beyond the original 10 days. Documented merchants still using legacy processors to plan migrations to the newer CLT system. Supported weekly handling of customer, merchant, and internal issues related to Pay With Venmo. Developed clean, efficient, and scalable code within a monolithic Ruby on Rails application.

Software Engineer at Powerschool

January 1, 2024 - August 13, 2025

Conducted research and full stack development of the Faculty Suite web application mainly based on Ruby on Rails. Implemented authentication protocols including single sign on and OAuth through Auth0, ensuring continuity between sign-ins for higher education products. Developed multiple connectors to third-party applications using REST APIs, notably ORCID, Banner, and Pubmed. Additionally, designed and hand drew a custom owl graphic displayed on the application's error page.