Security Threat Hunting Specialist in United States

About the Team Security is foundational to OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security organization protects OpenAI’s technology, people, and products by building and operating deeply technical systems that must work reliably at massive scale. Our work underpins OpenAI’s commitments around safety, privacy, and security across research, products, and emerging platforms. The Host Assurance team exists to make bare metal a dependable, scalable foundation for OpenAI: secure by default, verifiable in practice, and resilient across providers and operating models. We operate at the trust boundary between physical hardware and cloud-scale orchestration, ensuring that hosts are eligible to safely run workloads with predictable security properties and auditability. About the Role OpenAI is seeking a Security Engineer, Host Assurance to help build the trust foundations for bare-metal platforms across OpenAI’s global infrastructure. This is a deeply hands-on engineering role for a builder who can design, implement, and operate the core security infrastructure that establishes trust in hardware platforms before they are eligible to run workloads. Success in this role requires strong technical judgment, the ability to work comfortably at low levels of the stack, and a practical mindset for building systems that are secure, reliable, and usable in fast-moving production environments. The systems you build will sit on the critical path of OpenAI’s frontier infrastructure investments and will directly shape how large amounts of compute are brought online - securely, responsibly, and at global scale - underpinning long-lived commitments around privacy, security, and reliability. You will partner closely with infrastructure, research, and confidential computing initiatives—including novel hardware platforms and emerging deployment models– to make the secure path the easiest path. This role is well suited for engineers who enjo

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but operational in how we execute, and we support every product and research effort at OpenAI. Our tenets include prioritizing for impact, enabling researchers and developers, preparing for future transformative technologies, and fostering a strong, collaborative security culture. About the Role OpenAI is seeking a Principal Software Engineer to join the Infrastructure Security (InfraSec) team. InfraSec safeguards the core of OpenAI’s research and production environments: GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter spans everything from bare-metal hardware and firmware to Kubernetes clusters, service meshes, and the data pathways that carry highly sensitive model weights and user data. As a Principal Software Engineer, you will set technical direction and drive execution of critical foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship. These systems form the security backbone of OpenAI’s customer and supercomputing environment and must remain robust under intense scale and adversarial pressure. In this role, you will: Own the architecture and roadmap for one or more core security services (e.g., authN/Z, policy enforcement, secure proxies, key management), taking them from design to rollout to long-term operation. Design and implement planet-scale security systems that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD: balancing security, reliability, latency, and developer ergonomics. Lead cross-functional launches

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but are operational in how we do our work, and are committed to supporting all products and research at OpenAI. Our Security team tenets include: prioritizing for impact, enabling researchers, preparing for future transformative technologies, and engaging a robust security culture. About the Role We’re seeking an exceptional Staff - Principal level offensive security domain expert to build agents that continuously identify and coordinate remediation of vulnerabilities across OpenAI’s infrastructure and applications. You will be the technical owner of this effort, combining deep offensive security judgment with agent engineering to build a production system that can operate safely and reliably at scale. As OpenAI increasingly uses automation throughout the company, we believe our security testing must become increasingly automated as well. Advances in model capabilities create an opportunity to test more of our attack surface than would be possible through human effort alone and a need to ensure that we remain ahead of those same capabilities as they become available to attackers. In this role, you’ll build a portfolio of specialized agents that develop a deep understanding of OpenAI’s infrastructure, applications, processes, and security boundaries. These agents will combine internal context with feedback from running systems to explore our cloud environments, Kubernetes clusters, web applications, endpoints, external attack surface, and other high-value targets. The goal is for agents to not only discover vulnerabilities, but also to validate exploitability, document impact, drive remediation, and verify fixes. Success will be measured through outcomes like vulnerabilities fixed, attack surface covered, and performance on evals

Who We Are Notion is the collaborative AI workspace where teams and agents think together . We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion. Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work. About The Role Millions of people rely on Notion to do their most important work, and protecting that trust is foundational to everything we build. We’re looking for a hands-on Detection Engineer to build and operate the systems and workflows we use to detect and respond to attacks across Notion’s cloud-native environment. You’ll ship high-signal detections, improve the platform that powers them, participate in incident response, and help shape how detection and response engineering scales at Notion. You’ll work closely with Engineering, Corporate Security, and Infrastructure, with broad latitude to identify gaps, prioritize investments, and build what’s needed next. We view detection and response as a software engineering discipline: detections are code, platforms are products, and measurement matters What You'll Achieve Design and maintain high-signal detections across cloud, identity, endpoints, and SaaS environments. Build and improve the detection platform, including rule lifecycle management, tuning, measurement, and rollout safety. Develop tooling and automation that accelerate triage, enrichment, investigation, and detection

Who We Are Notion is the collaborative AI workspace where teams and agents think together . We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion. Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work. About Us: Notion helps you build beautiful tools for your life’s work. In today's world of endless apps and tabs, Notion provides one place for teams to get everything done, seamlessly connecting docs, notes, projects, calendar, and email—with AI built in to find answers and automate work. Millions of users, from individuals to large organizations like Toyota, Figma, and OpenAI, love Notion for its flexibility and choose it because it helps them save time and money. In-person collaboration is essential to Notion's culture. We require all team members to work from our offices on Mondays, Tuesdays, and Thursdays, our designated Anchor Days. Certain teams or positions may require additional in-office workdays. About the Role: Millions of people rely on Notion to do their most important work. Protecting that trust starts with protecting the people who build Notion: our employees, their laptops, their identities, and the SaaS apps they rely on every day. We are looking for a hands-on Corporate Security Engineer to own and improve the technical controls that keep our workforce and corporate environment safe. This is a security engineering

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Are you a curiosity driven technologist who can quickly understand how an AI system works, identify where it could be misused or fail, and help a team find a practical path forward? Sony Interactive Entertainment is seeking a Senior AI Security Risk Analyst to provide hands-on security support for AI systems, agents, workflows, tools, and integrations across SIE. Role Summary: In this role, you will operate at the intersection of modern AI technology, security risk, architecture, and enablement. You will conduct AI security reviews using SIE’s established security risk assessment methodology, policies, standards, and control expectations, adapting their application to AI-enabled and agentic systems and identifying where AI-specific guidance or controls are needed. You will coordinate risk-focused design and architecture input and translate AI-specific weaknesses into decision-ready recommendations and engineering actions. You will serve as an approachable security partner, working cross-functionally with teams across SIE’s business units and functions to support a diverse range of AI use cases, systems, and technologies. You will work especially closely with Responsible AI & Governance and coordinate expertise across Information Security teams and IT &amp

Leidos has an exciting opportunity for Cyber Security Engineer—Technical Lead in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary This role is responsible for protecting the customer’s information systems and networks from potential cyber-attacks. The Cyber Security Engineer– Technical Lead will serve in a hands-on “player-coach" capacity, dedicating approximately 75% of time to direct technical engineering, troubleshooting, and implementation work, while providing technical leadership and coordination across the security team. The candidate must display an excellent understanding of technology and utilization of Firewalls (Security Groups), VPNs, Data Loss Prevention (DPS), IDS/IPS, Web-Proxy, Security tools, and Security Audits. Candidate will work directly with Team leads, developers, operations personnel, and other Technical Leads throughout a DevSecOps life cycle both on policy and technical implementation of technologies. This is not a supervisory management role. Success in this position is measured by individual technical contribution and resolution of complex security issues, in addition to technical leadership impact. Primary Responsibilities: Plan, implement, manage, monitor, and upgrade security controls and tools used to protect enterprise systems and networks, while identifying opportunitie

The Starting Hourly Rate / Salario por Hora Inicial is $18.50 USD per hour. The Pay Range / Rango salarial is $18.50 USD - $27.75 USD per hour. ALL ABOUT TARGET As a Fortune 50 company with more than 400,000 team members worldwide, Target is an iconic brand and one of America's leading retailers. Working at Target means the opportunity to help all families discover the joy of everyday life. Caring for our communities is woven into who we are, and we invest in the places we collectively live, work and play. We prioritize relationships, fuel and develop talent by creating growth opportunities, and succeed as one Target team. At our core, our purpose is ingrained in who we are, what we value, and how we work. It's how we care, grow, and win together. ALL ABOUT ASSETS PROTECTION Assets Protection (AP) teams function to keep our guests, team and brand safe and secure and lead through crisis events. They protect profitable sales by mitigating shortage risks, preventing, investigating and resolving theft and fraud to ensure product is available for our guest. At Target, we believe in our team members having meaningful experiences that help them build and develop skills for a career. The role of a Target Security Specialist can provide you with the: Skills using intelligence-led tactics to keep team members and guests safe and secure Experience in crisis response, safety and crowd management; providing support to both guests and team members Skills in de-escalation as well as experience with recovering stolen merchandise to prevent shortage Ability to utilize Target's video surveillance system Ability to properly document cases using industry case management systems As a Target Security Specialist, no two days are ever the same, but a typical day will most l

Starting Hourly Rate / Salario por Hora Inicial: $19.00 USD per hour ALL ABOUT TARGET Working at Target means helping all families discover the joy of everyday life. We bring that vision to life through our values and culture. Learn more about Target here. ALL ABOUT ASSETS PROTECTION Assets Protection ( AP ) teams function to keep our guests, team and brand secure and lead through crisis events. They protect profitable sales by mitigating shortage risks, preventing, and resolving theft and fraud to ensure product is available for our guest . They also build relationships inside and outside of Target , including store leaders and public safety officials, inclusive of law enforcement. At Target , we believe in our team members having meaningful experiences that help them build and develop skills for a career. The role of a Target Security Specialist can provide you with the skills and experience of : <sp

Starting Hourly Rate / Salario por Hora Inicial: $18.50 USD per hour ALL ABOUT TARGET Working at Target means helping all families discover the joy of everyday life. We bring that vision to life through our values and culture. Learn more about Target here. ALL ABOUT ASSETS PROTECTION Assets Protection ( AP ) teams function to keep our guests, team and brand secure and lead through crisis events. They protect profitable sales by mitigating shortage risks, preventing, and resolving theft and fraud to ensure product is available for our guest . They also build relationships inside and outside of Target , including store leaders and public safety officials, inclusive of law enforcement. At Target , we believe in our team members having meaningful experiences that help them build and develop skills for a career. The role of a Target Security Specialist can provide you with the skills and experience of : <sp

About the Role Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Citi's Integrated Digital Assets Platform (CIDAP) is at the vanguard of institutional blockchain adoption — and security is its foundation. As digital assets move from innovation to regulated infrastructure, the cryptographic integrity of every transaction, wallet, and key lifecycle operation becomes mission-critical. We are building the security layer that the world's most sophisticated financial institution can trust. We are seeking a Senior Security Engineer (VP) to join our New York-based Digital Assets Platform engineering team. This is a hands-on, Java-focused backend engineering role for a security-minded engineer who understands both the craft of secure software development and the cryptographic primitives that underpin digital asset custody, signing, and key management. You will sit inside the core engineering team — writing production code every day — while being the resident authority on cryptographic design patterns, HSM integration, MPC protocols, and security architecture. Your work will directly protect billions of dollars of digital asset infrastructure used by institutional clients worldwide. Key Responsibilities Design, develop, and maintain security-critical backend services in Java — including cryptographic libraries, key management APIs, signing wor

Leidos is seeking a Theater Security Cooperation Logistics Specialist to support the Indo-Pacific Logistics and Sustainment Services (ILS2) contract in Hawaii. This position integrates theater security cooperation and multinational partner operations into deployment and distribution support across the Pacific theater. Job summary: As the Theater Security Cooperation Logistics Specialist, you will integrate theater security cooperation and multinational and strategic-partner operations into deployment and distribution support, coordinating logistics requirements affecting partner participation and combined activities. You will also provide guidance to supporting logistics specialists. Success in this role requires strong coordination skills and the ability to operate effectively with multinational partners in a dynamic operational environment. Primary Responsibilities. Integrate theater security cooperation and multinational and strategic-partner operations into deployment and distribution support. Coordinate logistics requirements affecting partner participation and combined activities. Track support actions across multinational stakeholders and operational teams. Provide guidance and day-to-day direction to supporting logistics specialists. Basic Qualifications Bachelor degree and 12 – 15 years of prior relevant experience or Masters with 10 – 13 years of prior relevant experience Demonstrated experience in theater security cooperation, multinational logistics coordination, or partner-nation support within a DoW, federal, or defense industry environment. Working knowledge of DoW contracting and understanding of FAR, DFARS, military, and government regulations. Strong problem-solving, organizational, and verbal/written communication skills, with the ability to adapt communication style to suit different audiences. Active Top Secret (T

CPI Security, a leader in the security and automation solutions industry, is looking for a Residential Security Advisor to join our growing team in Zebulon, North Carolina! Our Residential Security Advisors will design, present and sell our award-winning security and home automation solutions and will schedule in-home sales consultations through lead generating and prospecting activities using company provided tools. As an Advisor, you will lead our mission to make every day safer for our community by working directly with customers to identify and meet their security and automation needs. This is a fantastic opportunity to earn an uncapped, performance-based income while providing valuable service to our customers. This is more than “just a sales job” – it’s your chance for a fulfilling and purpose-driven career that provides opportunities for growth, stability, and competitive pay and benefits. We are looking for go-getters who can work independently while exceeding goals. If you’re an experienced sales professional and excellent communicator, you enjoy building relationships with customers and solving problems, this opportunity is for you. What you'll do: Effectively communicate CPI Security’s value, product vision, and capabilities to potential customers Self-generate customer connect opportunities, in addition to company leads, to meet or exceed sales targets Develop and maintain outstanding working relationship with customers and potential customers to ensure complete satisfaction Maintain a schedule of weekly appointments with accounts in assigned location Merchandise product sections and build displays to stimulate sales Work closely with Sales Manager and team to ensure goal is achieved What We Are Looking For: High school diploma 1-2 years of outside sales experience preferred, but will train the right individual Highly driven and motivated, with a strong work ethic and integrity Strong time-management, organizational a

CPI Security, a leader in security and automation systems is hiring a Commercial Sales Manager for our team in our Raleigh, North Carolina market. This individual will be responsible for profitable growth and strategic planning to grow the business solutions department. They will be responsible for cost evaluations, and ongoing budget planning for developing current and new markets in the surrounding areas and must be able to thrive in a competitive, fast-paced sales environment, and have strong leadership skills. This is a fantastic opportunity to earn a great performance-based income, while providing a valuable service to our customers and employees. What You'll Do: Manage the assigned sales force and ensure awareness and training regarding products, services and selling skills in compliance with company policies and procedures Develop strategies with team on how to grow customer base Continuously seek to improve sales efficiencies and employee retention by providing the leadership and training necessary to achieve sales objectives Review sales performances of staff and provide regular feedback, establishing improvement plans as needed Recruit, interview and hire sales professionals to ensure staffing levels are met Conduct regular sales meetings to communicate current sales policies and procedures, sales promotions and branch sales numbers Resolve consumer inquires and complaints regarding installations, product quality, sales price, contract and other relevant business Meet with key customers, assisting Security Consultants with maintaining relationships and negotiating and closing deals Exhibit foresight in recognizing potential problems and develop solutions to overcome obstacles and close deals. What We Are Looking For: Bachelor’s Degree or equivalent experience required Minimum 5 + years industry experience Intermediate to advanced proficiency with the Microsoft Office Suite Proficient in Sales CRM (Salesforce a plus) What We Offer: $100,000

CPI Security, a leader in the security and automation solutions industry, is looking for a Residential Security Advisor to join our growing team in Raleigh, North Carolina! Our Residential Security Advisors will design, present and sell our award-winning security and home automation solutions and will schedule in-home sales consultations through lead generating and prospecting activities using company provided tools. As an Advisor, you will lead our mission to make every day safer for our community by working directly with customers to identify and meet their security and automation needs. This is a fantastic opportunity to earn an uncapped, performance-based income while providing valuable service to our customers. This is more than “just a sales job” – it’s your chance for a fulfilling and purpose-driven career that provides opportunities for growth, stability, and competitive pay and benefits. We are looking for go-getters who can work independently while exceeding goals. If you’re an experienced sales professional and excellent communicator, you enjoy building relationships with customers and solving problems, this opportunity is for you. What you'll do: Effectively communicate CPI Security’s value, product vision, and capabilities to potential customers Self-generate customer connect opportunities, in addition to company leads, to meet or exceed sales targets Develop and maintain outstanding working relationship with customers and potential customers to ensure complete satisfaction Maintain a schedule of weekly appointments with accounts in assigned location Merchandise product sections and build displays to stimulate sales Work closely with Sales Manager and team to ensure goal is achieved What We Are Looking For: High school diploma 1-2 years of outside sales experience preferred, but will train the right individual Highly driven and motivated, with a strong work ethic and integrity Strong time-management, organizational a