Software Engineer Sr Lead

FIS; Milwaukee (WI); On-site; USD 130,000 - 175,000; Full time

Benefits offered by this job

Innovative fintech

Collaborative environment

Career development

Cutting-edge payment technologies

Flexible work arrangements

Competitive salary and benefits

Impact on payments ecosystem

Job summary

FIS is seeking a technical lead to drive ACH payment processing solutions. You will design, develop and maintain mainframe-based applications using COBOL, DB2 and JCL, guiding end-to-end delivery from design through production support.

You will mentor engineers, optimize performance, coordinate deployments, and collaborate with cross-functional teams to ensure scalable, secure and reliable payment platforms. On-call rotations may apply.

Qualifications

• Bachelor's degree is required or equivalent experience.
• Extensive software engineering and technical leadership in financial services or payments.
• Strong expertise in ACH processing and payment systems architecture.

Responsibilities

• Lead end-to-end technical delivery for ACH processing projects from design to production support.
• Design and maintain mainframe payment processing applications and optimize performance.
• Coordinate deployments, change management, and on-call support.
• Mentor engineers, perform code reviews and ensure quality across teams.
• Partner with cross-functional teams to meet business objectives.

Skills

Technical leadership

ACH payment processing

Communication & stakeholder management

Production support

Cross-functional collaboration

Education

Bachelor's degree in Computer Science, Information Technology, Engineering or related field

Tools

COBOL

DB2

JCL

Mainframe tooling

Job description

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?

About the Team

Our team supports mission-critical payment processing applications that power financial institutions across the globe. We work collaboratively across engineering, product management, business analysis, implementation, and service delivery teams to deliver secure, reliable, and scalable payment solutions. The team is focused on modernization initiatives, operational excellence, and continuous innovation within the ACH payments ecosystem.

What You Will Be Doing

Serve as the technical lead and primary contributor for ACH payment processing solutions, including XAA/EDI applications. Lead end-to-end technical delivery of strategic projects, often acting as the principal technical resource from design through implementation and production support. Design, develop, maintain, and enhance complex payment processing applications using mainframe technologies. Drive modernization and platform upgrade initiatives to improve scalability, performance, and maintainability. Resolve production issues, defects, and service requests while ensuring system stability and operational excellence. Coordinate change management activities, including deployment planning, production validation, release approvals, and implementation support. Partner with cross-functional teams to define requirements, develop technical solutions, and ensure successful project execution. Optimize system performance through process improvements, job flow optimization, and platform efficiency enhancements. Provide technical architecture guidance and solution design expertise for complex payment processing environments. Mentor engineers and provide technical leadership, code reviews, and quality oversight across development teams. Support client implementations and collaborate with stakeholders to ensure successful delivery of business objectives. Participate in on-call support rotations and coordinate operational readiness activities as required.

What You Will Need

Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent combination of education and experience. Extensive experience in software engineering and technical leadership roles within financial services or payments technology. Strong expertise in ACH payment processing and payment systems architecture. Advanced experience developing and supporting mainframe applications using: COBOL DB2 JCL Mainframe development and deployment tools Strong understanding of software development lifecycle methodologies and production support processes. Experience leading complex, large-scale technology initiatives from conception through deployment. Proven ability to troubleshoot, optimize, and maintain high-volume, mission-critical applications. Excellent communication and stakeholder management skills. Demonstrated experience collaborating across technical and business organizations.

Added Bonus

If You Have Deep expertise with ACH Tracker or similar ACH processing platforms. Experience with payment regulations, compliance requirements, and risk management solutions. Knowledge of: OFAC screening Prefunding processes Transaction controls Regulatory change implementation Experience with throughput optimization, parallel processing, and large-scale performance tuning initiatives. Technical architecture experience within high-volume financial transaction environments. Experience leading modernization and transformation programs for legacy payment platforms. Strong mentoring and people leadership capabilities.

What We Offer You

At FIS, you can grow your career as far as your ambitions take you. We offer:

• Opportunities to innovate in a leading fintech organization
• A collaborative and inclusive work environment
• Career development and continuous learning opportunities
• Exposure to cutting-edge payment technologies
• Flexible work arrangements where applicable
• Competitive salary and benefits package
• The opportunity to help shape the future of how the world pays, banks, and invests

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

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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