About Flexspring

Everything connects. That's not just our tagline - it's the whole job.

Flexspring is an iPaaS (Integration Platform as a Service) built for one of the thornier problems in enterprise software: getting HR systems to actually talk to each other. We link payroll, recruiting, benefits, and HRIS platforms API-to-API so data moves between them cleanly and in near real-time, with no manual re-entry anywhere. The results back it up - 3,000+ integrations delivered, 800+ clients including Fortune 500 companies, ADP Marketplace Platinum Partner, and named HR Data Integration Experts of the Year 2025. And we do it all as a remote-first team spread across Canada and beyond.

The Opportunity

We're looking for a Full Stack Software Developer Co-op to join our R&D team - and we'll be upfront about what that means.

This is real experience, in the fullest sense. No throwaway side project, no busywork to fill the term - from your first weeks you'll work on our actual product, as a real part of the team, shipping features that real customers depend on. Many of our co-ops go on to join us full-time after graduation.

You'll work mainly in a Java-based stack, and you'll quickly find that integration work is half code, half business reasoning - every feature exists because a real company needs its HR data to move without breaking. If you like building things that ship, and you tend to ask "what is this really for?" before writing a line of code, we'd love to hear from you.

What You'll Be Working On

• Building and improving features in Flexspring's product - and understanding the customer problem each one solves
• Writing backend and full stack code in Java and JavaScript
• Working with APIs and the data flowing between HR systems, where getting the small details right is the whole job
• Using modern tooling, AI included, to work efficiently - and reviewing what it produces with a careful eye before it ships
• Writing and running tests so you know your work holds up before it reaches a customer
• Collaborating with experienced developers through code reviews and team discussions

What We're Looking For

• Strong analytical thinking. You like connecting the work in front of you to the reason it matters - the why, the outcome, the customer on the other end. Seeing the full picture is more satisfying to you than just closing a ticket.