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

C++ Developer

About your role:
We are looking for an experienced C++ Developer to build, and support high‑throughput, low‑latency payment gateway systems. This role is critical to the reliability, scalability, and correctness of our payment platform, which operates in a 24×7, mission‑critical environment. You will work closely with product, infrastructure, and QA teams to deliver highly resilient systems that process transactions at scale.

What you'll do:

• Utilize your server‑side and systems engineering experience to understand business constraints and payment domain requirements, elevating the quality, stability, and performance of the platform over time
• Develop new features. Investigating, reproducing, and resolving production issues
• Improve performance, reliability, and code quality
• Take full ownership of merchant‑ and transaction‑facing services from development through deployment and production monitoring
• Work closely with the Infrastructure and DBA teams to design efficient Oracle data models, transaction flows, and failover strategies that support high TPS and high availability
• Write and maintain automated tests and diagnostic tooling to ensure system correctness and regression safety
• Support and operate the payment platform in production, including troubleshooting live issues, root‑cause analysis, and preventive improvements
• Follow Agile SDLC and participate in planning and Scrum boards

Experience you'll need to have:

• 8+ years of professional C++ development experience, building and supporting large‑scale, server‑side systems
• 6+ years of experience developing high‑performance, multi‑threaded, low‑latency applications
• 6+ years of hands‑on experience with mission‑critical or high‑TPS systems, ideally in payments, financial services, or transaction processing domains
• 6+ years of experience with Oracle databases, including: SQL and PL/SQL as well as Pro*C or equivalent embedded SQL approaches
• 6+ years of experience in debuggin across production environments, including memory issues, performance bottlenecks, and intermittent failures
• Bachelor's degree in computer science, Information Technology, Information Systems, or a related field (or foreign equivalent degree) or equivalent work experience.

Experience that would be great to have:

• Prior experience working on payment gateways, switching systems, or financial transaction platforms
• Familiarity with high‑availability architectures, active‑active deployments, and disaster recovery setups
• Experience with Linux system internals, networking, and performance tuning
• Exposure to cloud platforms (AWS, Azure, or GCP) in hybrid or on‑prem payment environments

Important information about this role:

• This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.

• This is a full-time, direct-hire position, and no contract options for unsolicited agency submissions will be considered.

• All offers of employment are contingent on standard background checks. Fiserv and certain of its affiliated companies are federal, state, and/or local government contractors. Should this position support a Federal Government contract, now or in the future, the successful candidate will be subject to a background check conducted by the U.S. Government to determine eligibility and suitability for federal contract employment for public trust or sensitive positions. Positions that support state and/or local contracts also may require additional background checks to determine eligibility and suitability.

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Salary Range

$110,000.00 - $186,000.00

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

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

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.