Security Engineer Jobs in United States

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SECURITY ENGIN

About the Company General Matter is enriching uranium in America. Our goal is to design, build, and operate the world’s lowest-cost enrichment services in the United States. Our mission is to restore America’s ability to produce nuclear fuel—fuel that will power AI, advanced manufac

Description Binary Defense is seeking a talented Principal Security Engineer. Primary responsibilities will include, but not be limited to, the architecture, deployment, configuration, and management of separate SIEM instances for our clients, as well as the responsibility of security use-case devel

About Coinflow Coinflow is the next-generation payment service provider revolutionizing global financial infrastructure with stablecoins, AI-driven fraud prevention, and instant settlement. Coinflow enables businesses to grow faster with instant settlement, fraud & chargeback indemnity, global pay-i

Burris Logistics, currently celebrating our 100 th anniversary, is a family-owned business has been dedicated to building strong partnerships and delivering dependable, innovative supply chain solutions across the nation. From food service redistribution and freight management to cutting-edge logist

SUMMARY The Cybersecurity Engineer joins an existing security operations team of 2 that are responsible for the continued evolution, design, and advancement of the firm’s cybersecurity program. This role safeguards the confidentiality, integrity, and availability of firm data, sy

The Synack Red Team (SRT) gives the most talented cybersecurity researchers across the globe a platform to do what they love and get paid for it. As a private community of highly-curated and vetted security penetration testers, the SRT is challenged every day to deliver vulnerability intelligence fo

About AutoRoboto is a consulting firm that specializes in engineering and management that has provided services for some of the largest tech companies in the San Francisco Bay Area. These services include mechanical, electrical, software design, data collection quality assurance, and testing of new

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SECURITY ENGIN

cBEYONData + SMX is seeking Cybersecurity Engineers to support federal customers with cybersecurity operations, security engineering, compliance, risk management, network security, cloud security, and mission-focused modernization initiatives. Responsibilities Design, implement, monito

About SHEIN SHEIN is a global online fashion and lifestyle retailer, offering SHEIN branded apparel and products from a global network of vendors, all at affordable prices. Headquartered in Singapore, with more than 15,000 employees operating from offices around the world, SHEIN is committed

About the Company Born from groundbreaking research at Columbia University and Yale University, CertiK is a leading Web3 security company focused on securing blockchain protocols, smart contracts, and decentralized applications through cutting-edge security research, formal verification, and AI-powe

EMPLOYER IS A CONTRACTOR FOR THE U.S. GOVERNMENT. THIS POSITION WILL REQUIRE U.S. CITIZENSHIP. Role Description: As the cybersecurity engineer, you will be responsible for supporting all aspects of the RMF process from accreditation of the platform to establish a cATO for our Software Factory

True Zero Technologies, a veteran-owned small business, was founded on the principle that the purposeful enablement of people and technology in an organization directly ties to the quality of its outcomes. True Zero recognizes that those outcomes begin and end with our people, and that is what we ha

AppOmni prevents SaaS data breaches by delivering end-to-end SaaS security. Our platform gives security teams clear visibility into posture, access, third-party connections, AI-related activity, and with built-in discovery to identify unsanctioned SaaS and Shadow AI tools. Backed by continuous monit

Position Overview Argo Cyber Systems is seeking a Senior Cybersecurity Engineer with specialized experience supporting U.S. Department of Defense (DoD) and U.S. Navy cybersecurity programs. The ideal candidate will possess hands-on expertise in vulnerability analysis, STIG implementation, risk asses

About Adaptive NVIDIA and OpenAI’s only AI cybersecurity investment. Adaptive is a cybersecurity startup on a mission to stop AI-powered cyberattacks. In December 2025, the company announced an $81M Series B led by NVIDIA and Bain Capital Ventures, with participation from Capital One Ventures, Citi

About the Role: We're looking for a Security Engineer who is equally at home hardening a CI/CD pipeline, reviewing a change to the authentication system on the backend, and triaging a bug bounty submission before lunch.This is a hands-on, builder-first role — not a governance checkbox. You'll own se

The Penetration Tester is responsible for working as part of the Assessment Team to conduct and participate in offensive and defensive security projects for OccamSec and its clients. This individual will work as part of a security team and report to an Assessment Team Lead. Job Responsibilities: Con

One Step Secure I/T is an MSP providing the latest in managed services and cybersecurity. We’re a stable, privately-owned company where people enjoy what they do — and who they do it with. Our team sticks around, with an average tenure just shy of 10 years. That kind of loyalty doesn’t happen by acc