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# Cyber Security Engineer

- **Company:** Fiserv, Inc.
- **Location:** Omaha, NE, United States
- **Experience:** Expert
- **Salary:** $128,000.0 - $216,000.0
- **Contract:** Temporary contract
- **Skills:** HTML, Java (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Apple Mac Systems, Systems Engineering, User Authentication, C++ (Programming Language), Protocol Stack, Cyber Security, Computer Programming, Computer Networks, Data Security, Software Debugging, Distributed Systems, Web Browsers, Identity and Access Management, Internet Security, Mobile Application Software, Network Security, Transport Layer, Machine Learning, Language Modeling, Network Protocols, OAuth, Object-Oriented Software Development, OpenID, Performance Tuning, Reliability Engineering, Openid Connect, Zero Trust Network Access, Security Assertion Markup Language (SAML), Secure Coding, Web Application Security, Software Engineering, System Programming, Systems Integration, Rust (Programming Language), Transport Layer Security, Enterprise Software Applications, Large Language Models, Software Security, Generative AI, Information Technology, Data Management, Golang
- **Published:** August 7, 2026
- **Apply:** https://www.careerbuilder.com/job-details/sr-cyber-security-engineer-omaha-ne--3711c767-e75e-4a8e-bd7f-b5454655adf0

## About the Role

* 6+ years of experience in software engineering in systems, platforms, or security-focused development environments.
 * 6+ years of experience with one or more system-level languages such as C++, Rust, Go, Java, or similar object-oriented or systems programming languages.
 * 5+ years of experience working with network protocols (HTTP/S, TLS, proxy architectures) and authentication and authorization flows (OAuth, Security Assertion Markup Language (SAML), OpenID Connect (OIDC)) in enterprise environments.
 * 4+ years of experience integrating with enterprise security and access control systems such as endpoint security, device management, secure web gateways, private application access, or security infrastructure APIs.
 * Experience with browser concepts such as rendering engines and runtime components, extensions or embedded browser frameworks, and network traffic interception and inspection models.
 * Strong analytical and debugging skills across distributed systems, including complex interactions between browser, network, identity, and operating system layers.
 * 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 with Chromium-based architectures or commercial enterprise browsers such as Island.
 * Background in endpoint security, application security, network security, and/or Zero Trust architectures.
 * System integration experience with both Windows and macOS platforms.
 * Knowledge of secure coding practices, threat modeling, software hardening, and security compliance or regulated-industry requirements.
 * Exposure to AI or machine learning governance, data protection controls, or secure enterprise adoption of large language model (LLM) technologies., Access Control, Analysis Skills, Application Programming Interface (API), Applications Security, Artificial Intelligence (AI), Authentication, C++ Programming Language, Computer Science, Credit Cards, Debugging Skills, Disability Insurance, Distributed Computing, Ecosystems, Embedded Systems, Employee Assistance Plan, Endpoint Security, Enterprise Protection, Go Programming Language (Golang), HTTP (HyperText Transport Protocol), Identify Issues, Identity Data Management, Information/Data Security (InfoSec), Instrumentation, Internet Security, Java, Life Insurance, Machine Learning, Military, Mobile Applications, Modeling Languages, Network Protocols, Network Security, OAuth, Object Oriented Programming (OOP) Languages, Onboarding, OpenID, Operating Systems, Performance Tuning/Optimization, Psychiatry and Mental Health, Reliability Engineering, Retirement Planning, Risk, Rust Programming Language, SSL-TLS (Secure Socket Layer - Transport Layer Security), Secure Coding, Security
Architecture, Security Assertion Markup Language (SAML), Security Compliance, Security Infrastructure, Software Design, Software Engineering, Stock Purchase Plans, System Integration (SI), Systems Engineering, Systems/Internals Programming, Team Player, Telemetry, Threat Modeling, Web Browsers, Willing to Travel

## Description

About your role: You will serve as a Sr. Cyber Security Engineer responsible for designing, building, and evolving our internal enterprise browser platform with a focus on secure, centrally governed access to generative AI tools. You will work closely with security architecture, identity, networking, and AI governance teams to embed policy enforcement, visibility, and controls directly into the browser runtime, enabling secure-by-design application delivery across the enterprise.

What youll do:

 * Design, develop, and maintain enterprise browser features and system components that support secure access to internal and external applications.
 * Build integrations between the enterprise browser and security ecosystems, including endpoint security and device management, network security technologies, and identity and access management solutions.
 * Implement browser-level security mechanisms, including session isolation, in-browser access enforcement, authentication and authorization workflows, and data protection and policy controls.
 * Develop services that collect, interpret, and act on device posture, endpoint telemetry, and user identity and contextual access information.
 * Design and implement a browser-level AI Controls Framework that governs enterprise use of generative AI tools (for example, Gemini, Claude, Grok, OpenAI), including centralized policy enforcement, isolation of sensitive data, guardrails for data submission and exfiltration, and instrumentation for AI interactions.
 * Create browser-mediated abstractions and capabilities such as AI usage classification and risk scoring, approved model routing, dynamic masking and redaction, and identity-bound usage controls to reduce the need for direct integration with each AI provider.
 * Troubleshoot and debug complex issues across browser runtime, network stack, operating system integrations, and identity layers while contributing to performance tuning, reliability engineering, and platform scalability.

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


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