Software Engineer Senior

Railz

Railz

Software Engineering
Brown Deer, WI, USA
Posted on Jan 21, 2026

Position Type :

Full time

Type Of Hire :

Experienced (relevant combo of work and education)

Education Desired :

Bachelor of Computer Engineering

Job Description

About FIS

We are FIS. Our technology powers the world’s economy and our teams bring innovation to life. We champion diversity to deliver the best products and solutions for our colleagues, clients and communities. If you’re ready to start learning, growing and making an impact with a career in fintech, we’d like to know: Are you FIS?

About the role


As a Software Engineer you could work with bleeding edge technology as you build innovative fintech products that change the way the world pays, banks and invests. This will involve developing core versions of software applications, identifying client requirements and technical specifications, interacting with engineering groups and training clients on applications.

About the team

Our team is composed of talented Software Developers & Quality Engineers who work collaboratively to deliver high-quality software solutions that support key banking and financial operations. We focus on building scalable, secure, and efficient systems that meet the evolving needs of our clients and internal stakeholders.

What you will be doing

  • Designing, developing, and maintaining features for a high-performance payment processing application.

  • Writing clean, efficient, and well-documented code, while performing testing and debugging activities.

  • Interacting with product managers and users to define requirements and modifications.

  • Collaborating with cross-functional teams in an Agile environment to deliver high-quality solutions.

  • Leading technical discussions and supporting the growth of less experienced developers.

What you will need

  • Bachelor’s or Master’s degree in Computer Science, or a related field or equivalent combination of education, training, and experience.

  • Minimum of 5 years of experience working with Java, Angular & Oracle.

  • Experience with end-to-end systems development life cycles and standards.

  • Proficiency in solutions design and requirements definition disciplines.

  • Experience with CI/CD pipelines (Jenkins, Bitbucket)

  • Excellent interpersonal communication, negotiation, and influencing skills.


Bonus if you have

  • Experience with Cloud Native Technologies.


What we offer you


• A voice in the future of fintech.
• Always-on learning and development.
• Collaborative work environment.
• Opportunities to give back.
• Competitive salary and benefits.

Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here


For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be reviewed and evaluated on a case-by-case basis.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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