Systems Engineer – Sr. Professional

Calling all innovators – find your future at Fiserv.

We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

Systems Engineer – Sr. Professional

About your role:

As a Systems Engineer - Sr. Professional for the BillPay Platform, you will ensure the availability, reliability, performance, and security of large-scale, mission-critical digital payment systems. You will collaborate closely with application development, site reliability engineering, security, and operations teams to support high-volume Bill Payment services. You will lead complex technical initiatives that help our clients deliver secure, compliant, and resilient payment experiences.

What you'll do:

• Design, implement, and support enterprise-scale BillPay systems that process high-volume, mission-critical financial transactions in a regulated environment.
• Conduct advanced troubleshooting, root-cause analysis, and resolution of complex production incidents and problems to maintain system reliability and availability.
• Monitor and analyze system health and performance metrics, and develop automated monitoring, alerting, and observability solutions to proactively identify and mitigate risks.
• Build, configure, and maintain infrastructure and middleware components, including Windows/Linux servers, application servers, IIS, databases, APIs, and supporting services required for BillPay operations.
• Collaborate with application development, quality assurance, security, and operations teams to support software releases, deployments, environment standardization, and production readiness activities.
• Implement and maintain system security controls, including certificate management and compliance with internal security, audit, and regulatory requirements related to sensitive financial data.
• Participate in capacity planning, performance optimization, and lifecycle management to ensure scalability and long-term sustainability of BillPay platforms.
• Provide technical leadership and mentoring to junior and mid-level engineers, contributing to best practices, operational standards, and continuous improvement initiatives.

Experience you'll need to have:

• 4+ years of experience in systems engineering, infrastructure engineering, or application operations supporting large-scale, high-availability software platforms.
• 4+ years of experience supporting mission-critical systems, including incident management, advanced troubleshooting, and production support in a regulated or highly controlled environment.
• 3+ years of experience working with Windows and/or Linux servers, middleware technologies (such as IIS or equivalent), databases, and enterprise application stacks.
• Experience with system monitoring, observability, automation, and performance optimization using enterprise tools and scripts (for example, PowerShell, Python, or similar technologies).
• Experience with cloud computing platforms (such as Microsoft Azure or equivalent), networking concepts, load balancing, and secure system design.
• 1+ years of Fiserv systems experience.

Experience that would be great to have:

• Experience supporting digital payment or financial services platforms, including high-volume transaction processing systems.
• Experience working within formal change, release, and incident management processes aligned to IT service management practices.
• Experience with security, audit, and regulatory compliance controls related to financial data protection.
• Experience implementing or supporting infrastructure-as-code, configuration management, or continuous integration/continuous delivery (CI/CD) pipelines.
• Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent combination of education, related experience and/or military experience.

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside p