Cyber Security Engineer

You will design, build, and evolve our internal enterprise browser platform. You will deliver secure, scalable, and policy-driven browser capabilities that integrate deeply with our endpoint security and network security ecosystem. You will focus on network integrations, endpoint posture enforcement, identity-aware access, and secure application delivery in a large-scale enterprise environment.

What you'll do:

• Design, develop, and maintain enterprise browser features and services that support secure, policy-driven user experiences.

• Build integrations between the browser and endpoint security and device management platforms, network security solutions, and identity and access management systems.

• Implement browser-level security controls, including session isolation, access enforcement, authentication and authorization workflows, and data-protection policy enforcement.

• Develop services and components that collect and act on device posture and endpoint signals, user identity, and access context to support adaptive security decisions.

• Write clean, secure, and highly maintainable production code for browser runtimes, operating system integrations, and backend services.

• Troubleshoot and debug complex issues across browser runtime, operating system integrations, and network and identity layers to restore service quickly and prevent recurrence.

• Collaborate with product managers, security architects, and platform engineers to deliver features end-to-end, participate in design reviews, and contribute to performance, reliability, and scalability improvements.

• Maintain clear documentation for implementation details, application programming interfaces (APIs), and integrations to support ongoing operations and future enhancements.

• Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.

• 6+ years of experience in software engineering focused on systems or platform development in enterprise environments.

• 6+ years of experience using one or more system-level programming languages (for example, C++, Rust, Go, Java or similar object-oriented languages) to build production services or components.

• 6+ years of experience working with network protocols (for example, HTTP/S, TLS, proxies) and authentication and authorization flows in the context of enterprise security or access-control systems.

• 4+ years of experience integrating with endpoint security or device management solutions and with APIs or software development kits (SDKs) from security or infrastructure platforms.

• Demonstrated ability to debug and resolve complex issues across distributed systems, including browser runtime, operating systems, and network and identity layers.

• Strong skills in secure coding practices, code reviews, and use of tooling (for example, debuggers, profilers, and observability platforms) to improve quality and reliability.

• Bachelor's degree or degree in Computer Science, Engineering or related field or equivalent combination of education, related experience and/or military experience.

Experience that would be great to have:

• Experience working on browser-based products or Chromium-based architecture, including extensions, embedded frameworks, or custom browser components.

• Background in endpoint security, application security, or network security, with familiarity using Zero Trust or identity-aware access models.

• Experience with Windows and/or macOS at the system integration level, including low-level hooks or security integrations.

• Experience operating software in highly regulated environments with compliance and audit requirements.

• 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.

Travel: This role requires occasional travel (up to 10%).

Sponsorship:

You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.

Benefits at Fiserv:

• Fuel Your Life program to support your physical, financial, social, and emotional well-being.

• Paid holidays and generous time away policies.

• No-cost mental health support through Employee Assistance Programs.

• Living Proof program to recognize your peers' extra effort with points redeemable for rewards.

• Eight Employee Resource Groups to foster a collaborative culture and expand your network.

• Unparalleled professional growth with training, development, and internal mobility opportunities.

• Medical, dental, vision, life, and disability insurance options available from day one.

• Retirement planning and discounted shares with the Employee Stock Purchase Plan.

• Tuition assistance and reimbursement program.

• Paid parental, caregiver, and military leave.

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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.

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.