Senior Software Engineer (HP NonStop)

Fiserv, a global fintech leader, is seeking a Senior Software Engineer specializing in HP NonStop to join their Core Acquiring Front End engineering group. This role is part of their Global Business Solutions team, working on mission-critical payment processing platforms that handle over 350 million transactions daily with peak throughput of 8,000 transactions per second. The position requires expertise in C and TAL programming on the HP NonStop platform, with a focus on developing and maintaining high-performance online transaction processing systems. The ideal candidate will have extensive experience in payment processing, strong technical skills in HP NonStop technologies, and the ability to balance platform stability with modern engineering practices. This is an on-site position offering the opportunity to work on large-scale financial systems that impact millions of daily transactions worldwide. The role combines deep technical expertise with business-critical responsibilities, making it an excellent opportunity for experienced engineers looking to make a significant impact in the financial technology sector.