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Site Reliability Engineer (Mainframe)

FIS
United States, Florida, Jacksonville
Feb 02, 2026

Position Type :

Full time

Type Of Hire :

Experienced (relevant combo of work and education)

Education Desired :

Bachelor of Computer Engineering

Job Description

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?

NOTE: This position is hybrid (3 days onsite) at our FIS Office locations in Jacksonville (FL), New York City (NY) & Milwaukee (WI).

About the Role and Team:

In this role, you will work directly under the mentorship of Lead DevOps/SRE Engineers to help transition our legacy Release Management practices into a state-of-the-art automated pipeline. You will gain hands-on experience with both Mainframe (Cobol, RPG) and server-based (Java, .NET) environments, playing a vital role in our journey toward application containerization and automated delivery.

This is a unique opportunity to learn"Hybrid DevOps."While many roles focus solely on the cloud, you will become a rare specialist capable of managing the intersection of high-scale mainframe systems and modern containerized microservices. You will be mentored by industry veterans and given a clear roadmap for career progression into a SRE/DevOps Engineer role. This role is with our Horizon team.

What you will be doing:

  • Pipeline Support:Assist in building and maintaining CI/CD pipelines for a diverse environment including IBM iSeries/Mainframe and modern server-based initiatives.

  • Tool Integration:Help integrate mainframe workflows with modern DevOps toolchains such asJenkins, GitHub Actions, and Azure DevOps.

  • Workflow Standardization:Support the consolidation of source control tools (moving from Rocket Aldon/Bitbucket toward GitHub) and assist in documenting these new standards.

  • Automation Execution:Execute and troubleshoot automated build and release scripts.

  • Monitoring:Monitor pipeline performance and reliability, reporting bottlenecks or failures to the senior team.

  • Documentation:Maintain clear documentation for CI/CD solution designs, support requirements, and "Steady State" operating procedures.

  • Continuous Learning:Actively participate in training sessions and track your skill development progress as part of the DevOps transformation initiative.

What you will need:

  • Foundational Knowledge:Basic understanding of the Software Development Life Cycle (SDLC) and CI/CD concepts.

  • Scripting Skills:Familiarity with at least one scripting language (e.g., Python, Bash, or PowerShell).

  • Version Control:Basic proficiency withGit(branching, merging, pulling).

  • Problem-Solving:A strong desire to troubleshoot complex technical issues and a hunger to maintain and grow existing skills.

  • Education:Bachelor's degree in Computer Science, Information Systems, or equivalent job experience.

Added bonus if you have:

  • Experience in a technical support or junior development role.

  • Mainframe Exposure:Any exposure to mainframe environments (AS/400, z/OS) or a willingness to learn legacy systems.

  • Tool Awareness:Familiarity with tools likeJira, ServiceNow, Jenkins, or Docker.

  • Testing Basics:Understanding of automated testing frameworks (e.g., NUnit, Watir).

What we offer you:
A career at FIS is more than just a job. It's the change to shape the future of fintech. At FIS, 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

NOTE: This position is hybrid (3 days onsite) at our FIS Office locations in Jacksonville (FL), New York City (NY) & Milwaukee (WI).

FIS is committed to providing its employees with an exciting career opportunity and competitive compensation. The pay range for this full-time position is $101,480.00 - $170,470.00 and reflects the minimum and maximum target for new hire salaries for this position based on the posted role, level, and location. Within the range, actual individual starting pay is determined by additional factors, including job-related skills, experience, and relevant education or training. Any changes in work location will also impact actual individual starting pay. Please consult with your recruiter about the specific salary range for your preferred location during the hiring process.

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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