Senior Frontend JavaScript Engineer

Senior Frontend JavaScript Engineer

General information

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JobID

16991

Position Level

Individual Contributor

Team

Technology Solutions & Svcs

Working Time

Full-Time

Position Type

Regular

Travel Requirements

10%

Workplace Type

Hybrid

Preferred Location

Allen, TX

Additional Locations

Birmingham, AL, Cedar Falls, IA, Charlotte, NC, Lenexa, KS, Louisville, KY, Monett, MO, Springfield, MO

Description & Requirements

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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 a Senior Frontend JavaScript Engineer to help shape and scale Jack Henry’s developer experience through our open banking platform. This role will play a critical part in building and maintaining jackhenry.dev, the public-facing developer portal that enables fintech partners to seamlessly integrate with Jack Henry. As the gateway to our open platform, this site is essential to our innovation strategy; its performance, reliability, and usability directly impact our ability to deliver a world-class developer experience. Our team is highly distributed, meaning you will work with kind, talented engineers from across various locations within the US.

This position can be based out of any Jack Henry office or work remotely from any US location, with the exception of California. May require occasional travel, up to 5% for meetings, trainings, or conferences. All positions, regardless of location, may require an on-site interview or in-person onboarding requirement to verify your identity.

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).

What you’ll be responsible for:

• Develop Jack Henry Developer Relations Portal features using software engineering best practices and company engineering standards.

• Take the lead on new feature development.

• Display foresight when planning and coordinating projects so that the work can be broken into smaller pieces for the rest of the team.

• Apply knowledge of reliability, scaling, quality, and performance during development.

• Represent your team throughout the technical decision-making process (e.g., discovery meetings).

• Consistently debug release pipeline and production service issues.

• May perform other job duties as assigned.

What you’ll need to have:

• Minimum 6 years of experience in JavaScript or TypeScript programming.

• Strong understanding and demonstrated experience in developing responsive web apps.

What would be nice for you to have:

• Bachelor’s degree in Computer Science.

• Previous experience developing technical documentation for engineers or developers.

• Proficiency with Web Components.

• Familiarity with Polymer or Lit.

• Solid understanding of security, API design, design patterns, and browser environment.

• Experience with front-end build systems such as webpack or rollup.

• Experience with Continuous Integration/Continuous Deployment (CI/CD) systems.

• Experience tracing a request through the network stack.

• Experience with SSOs, Plugins, or APIs.

• Experience implementing OAuth2/OpenID Connect.

• Experience supporting an application in production.

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 offercomprehensive 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 institutions evolve with speed, security, and flexibility. Our strategy focuses on delivering secure data access, mitigating fraud, and enabling seamless integration. Empowering our teams to build innovative solutions that meet the evolving needs of accountholders.

Culture of Commitment

Ask our associates why they love Jack Henry, and many will tell you it is because our culture is exceptional. We do great things together. Our culture empowers us to rise to challenges, seek new opportunities, and support one another through change. It’s this shared commitment that drives our success. We’re proud to foster an environment where inclusion, sustainability, and community impact are more than values, they’re how we operate. Visit ourCorporate Sustainability ( site to learn more about our culture and commitment to our people, customers, community, environment, and shareholders.

Equal Employment Opportunity

At Jack Henry, we know we are better together. We value, respect, and protect the uniqueness each of us brings. Innovation flourishes by including all voices and makes our business - and our society - stronger. Jack Henry is an equal opportunity employer and we are committed to providing equal opportunity in all of our employment practices, including selection, hiring, performance management, promotion, transfer, compensation, benefits, education, training, social, and recreational activities to all persons regardless of race, religious creed, color, national origin, ancestry, physical disability, mental disability, genetic information, pregnancy, marital status, sex, gender, gender identity, gender expression, age, sexual orientation, and military and veteran status, or any other protected status protected by local, state or federal law.

No one will be subject to, and Jack Henry prohibits, any form of discipline, reprisal, intimidation, or retaliation for good faith reports or complaints of discrimination of any kind, pursuing any discrimination claim, or cooperating in related investigations.

Requests for full corporate job descriptions may be requested through the interview process at any time.