Senior FullStack Software Engineer- React & Ruby on Rails

About Versapay 🚀

Versapay turns accounts receivable (AR) into a competitive advantage.

Inefficient AR processes slow cash flow and stall growth. Versapay removes friction, unlocks working capital, and accelerates momentum — giving finance leaders the clarity and control they need to drive business forward.

Versapay automates accounts receivable, removing barriers to collecting and reconciling B2B payments. Our solutions connect finance teams, customers, and business systems in one ecosystem to ensure cash flow clarity. With over 10,000 customers and 5M+ companies transacting on the platform, Versapay processes over 110M transactions and $257B annually.

Think you might be the next Veep to join? Read on!!

HOW YOU’LL MAKE A HUGE IMPACT HERE – AND ON YOUR CAREER

At Versapay, product development is organized around cross-functional squads -- each including Product Managers, Engineers, QA, and more—focused on delivering impactful features and scalable systems. We’re looking for a Senior Fullstack Software Engineer who thrives in a collaborative environment and is passionate about building high-quality, modern software. 

You’ll play a key role in designing and developing features across our platform, with a focus on both frontend (React) and backend (Ruby on Rails). You’ll also contribute to architectural decisions, mentor peers, and help us scale our systems as we grow. 

Explore our stack here: https://stackshare.io/versapay/arc 

• 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. 

• Work on a modern tech stack with a team that values innovation, quality, and collaboration. 
• Be part of a growing company that’s transforming how businesses manage payments and receivables. 
• Competitive compensation, benefits, and opportunities for career advancement. 

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