Systems Engineer
Senior Systems Engineer focused on Tandem NonStop environments, delivering high‑availability, performance‑tuned solutions for fintech operations. Leverages Python and shell scripting to automate maintenance, monitor system health, and optimize transaction processing for global payment platforms.
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
About your role: We are seeking a Senior Systems Engineer to provide technical solutions in a highly visible, large enterprise environment. You'll combine technical proficiency with strong problem-solving skills, attention to detail, and a commitment to ensuring the reliability, performance, and security of our infrastructure.
What you’ll do:
Maintain and upgrade existing systems to ensure 24x7 uptime on the NonStop systems including client related connectivity
Lead Guardian OS , Network, and other major software release planning and implementation
Assess and implement platform security solutions and configurations
Apply technical expertise to support the deployment of technology architecture and the total system solutions
Identify system performance bottlenecks and recommending performance improvement solutions
Perform analyses (e.g., performs technical research in order to assess system performance and capacity)
Provide Tier 2 and 3 support for the entire infrastructure
Perform daily continuous improvements on all NonStop servers, including off-platform servers, such as Splunk, Prognosis, Moogsoft, ServicePoint, SharePoint and BackPak servers, their databases, user and data security, etc.
Experience you’ll need to have:
6+ years of experience with of Guardian OS, NonStop SQL, and NonStop hardware platforms
5+ years of experience in configuring systems within the NonStop platform from end-to-end
5+ years of experience working with SQL, Guardian/OSS, NonStop Web Services (SOAP), and XML or JSON
Bachelor's degree in IT, or a related field, or an equivalent combination of education, military, or work experience
Experience that would be great to have:
Experience working with Nonstop Security
Experience with encryption and key management
Experience with NS7X technology (X-Series)
Experience in a large scale enterprise level environment
How you’ll work:
This role requires use of a computer and audio equipment
This role requires being on-call during non-standard and/or overnight hours on a rotational basis
#TandemNonStop #HPNonStop #GuardianOS
Salary Range
These pay ranges apply to employees in New Jersey and New York. Pay ranges for
Posted June 20, 2026