Senior Full Stack Software Engineer: Developer Relations Job Chicago area,Illinois USA,Software Development

At Jack Henry, we're more than a technology company, we're a force for good in financial services. We're redefining how community banks and credit unions connect with the people they serve. Our mission is rooted in people inspired innovation, empowering financial institutions to deliver seamless, secure, and human centered experiences. We deliver cutting-edge solutions that are paving the way for the next generation of digital banking and payments, but our true impact begins with our associates.

If you're ready to help transform an industry and grow with a company that values purpose, collaboration, and excellence then we'd love to meet you.

We are seeking an experienced full-stack software engineer to join our Developer Relations team to help lead the development, architecture, and ongoing evolution of our Developer Relations Portal, jackhenry.dev. Jackhenry.dev currently serves thousands of developers and is one of the most important touchpoints between Jack Henry and the fintech partners, vendors, and developers that build integrations with Jack Henry products. You will have real influence on the strategy, tools, and culture we are building together.

The ideal candidate combines strong full-stack development expertise with a passion for developer experience, modern web architecture, API ecosystems, and technical enablement. Our Developer Relations team is small and fast-moving, and we're looking for someone who's excited about this kind of developer portal ownership.

This position may be worked remotely within the United States, with the exception of California.

This position is not eligible for immigration sponsorship and support. Please do not apply if at any time you will need immigration support now or in the future (i.e., H-1B, PERM).

All positions, regardless of location, may require an onsite interview or in-person onboarding requirement to verify your identity.

What you'll be responsible for:

Serve as the Senior Engineer for jackhenry.dev, responsible for the platform's architecture, performance, reliability, and long-term strategic direction.
Design and evolve a scalable developer portal that delivers a best-in-class experience for external developers consuming Jack Henry APIs and platforms.
Lead the implementation of new portal capabilities, developer tools, workflows, and integrations that improve developer adoption and engagement.
Drive continuous improvements to developer onboarding, API discoverability, self-service functionality, documentation experiences, and technical resources.
Monitor platform health and usage metrics, leveraging developer feedback and analytics to identify opportunities for optimization and enhancement.
Ensure the platform meets enterprise requirements for security, authentication, authorization, compliance, and data protection.
May perform other job duties as assigned.

What you'll need to have:

A minimum of 6 years of experience in software engineering
A minimum of 3 years in full-stack software development
Must be proficient with JavaScript/Typescript
Hands-on use of AI coding tools (e.g., Cursor, Claude Code, Git Hub Copilot) in day-to-day workflows

What would be nice for you to have:

Bachelor's degree in Computer Science.
Demonstrated ability to organize and structure complex technical content (information architecture/content modeling)
Experience building or supporting developer-facing products, developer experience platforms, developer portals, API platforms, technical documentation systems, or developer education platforms.
Experience improving developer documentation for usability, clarity, and navigation
Experience developing technical documentation for engineers or developers.

If you got this far, we hope you're feeling excited about this opportunity. Even if you don't feel you meet every single requirement on this posting, we still encourage you to apply. We're looking for passionate, driven individuals who align with our mission and can bring unique perspectives to our team.

Why Jack Henry?

At Jack Henry, we live by the motto: "Do the right thing, do whatever it takes, and have fun." It's more than a tagline, it's the foundation of our culture. We recognize that our associates are the key to our success, and we're deeply committed to their wellbeing. That's why we offer comprehensive benefits designed to support your physical, mental, and financial health so you can thrive both personally and professionally.

We're also leading the way in technology modernization, helping financial…