[Hiring] Full Stack Developer @Flexspring

Role Description

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

Qualifications

• Strong analytical thinking.
• A thoughtful approach to new tools.
• You've already completed minimum one co-op term or have some relevant professional work experience.
• You're currently studying Software Engineering, Computer Science, or a related field.
• A solid foundation in Java and/or JavaScript.
• Some exposure to Spring and JUnit (school projects absolutely count).
• You've worked with or learned about APIs.
• You're curious, motivated, and enjoy getting to the bottom of a problem.

Nice to Haves

• Experience with REST APIs, React, GraphQL, Groovy, JMS, or SOAP.
• Interest in integration platforms (iPaaS) and how systems connect.
• Curiosity about how large systems talk to each other - and what happens when they don't.

What You'll Walk Away With

• Real, hands-on experience shipping to a production platform that real customers rely on.
• Mentorship from senior developers who'll invest in how you think, not just the code you write.
• A working understanding of how HR data actually moves between enterprise systems.
• Real practice using AI and modern dev tooling the way strong engineers do - fast, but with judgment.
• Competitive co-op pay.
• Flexible hours in a remote-first environment.
• A strong chance to grow into a full-time role after graduation.