Senior Full-Stack Software Engineer, React & Ruby on Rails

Versapay

full-time

Posted on: 8/21/2025

Location: 🇺🇸 United States

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💰 CA$140,000 - CA$160,000 per year

Senior

JavaScriptReactRubyRuby on RailsTypeScript

About the role

Design, develop, and test fullstack product features that meet business and technical requirements.
Collaborate with your squad to plan, scope, and implement new features and enhancements.
Estimate work methodically based on iterative learning and agile best practices.
Investigate and resolve performance, scalability, security and data integrity issues.
Participate in code reviews, architecture discussions, and technical decision-making.
Work closely with Product, QA, DevOps, and Customer Care to deliver value to our users.
Contribute to R&D efforts to ensure our platform is scalable, reliable, and secure.
Mentor junior engineers and foster a culture of continuous learning and improvement.

7+ years of experience in software engineering, with a strong foundation in computer science, engineering, or mathematics.
Proven experience building and shipping fullstackSaaS applications in an agile, test-driven environment.
Expertise in React.js and modern JavaScript/TypeScript development.
Experience with Ruby on Rails or a strong willingness and ability to learn it quickly.
Solid understanding of algorithms, data structures, and system design.
Strong debugging and problem-solving skills, especially in complex or ambiguous situations.
Excellent communication skills—clear, concise, and effective in both written and verbal formats.
A collaborative mindset with the ability to work independently and take ownership.
Experience in the Payments industry and/or PCI/DSS compliance is a strong asset.