Security Systems Engineer in United States

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As a Security Systems Engineer at Palantir, you are responsible for implementing, designing, and maintaining the physical security systems that ensure the protection of Palantir’s people, assets, intellectual property, and reputation. You lead research and evaluations for the latest technology, security infrastructure, policies, procedures, systems, and applications, looking for easy-to-use capabilities that reduce button clicks and ultimately give time back to the operator. You will be collaborating with technical teams to develop and maintain end-to-end project plans and ensure on-time delivery. Your technical expertise is second only to your integrity and genuine passion for security and technology. As a member of the Global Security and Investigations team, you work with security professionals, architects, lawyers, and software and network engineers to deliver a safe and secure environment for your fellow employees. Palantir is a global company, so you'll lead physical security projects all over the world. You'll work hard to break down barriers between teams by communicating your knowledge and goals effectively across time zones and other physical and virtual barriers. *Please note this role is NOT for cyber security or information security positions* Core Responsibilities Design and oversee the technical aspects of your projects from conception to full deployment. Systems naturally break and need maintenance. You'll work with vendors and end users to find the best solutions for a problem, in the shortest possible time. Leverage both system and software engineering skills in order to address the needs of all teams within Globa

Lead Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security’s Experimental Systems Group (ESG) is hiring Lead Systems Engineer to join our team at Seal Beach or El Segundo, CA. We are seeking a Lead Systems Engineer with proven expertise in requirements development and management, verification and validation (V&V), system architecture, specifications, and Interface Control Documents (ICDs). The ideal candidate will excel at translating stakeholder needs into clear, well-formed requirements, developing and maintaining comprehensive system-level architectures, authoring and managing technical specifications and ICDs, and planning and executing verification activities across all system elements to ensure successful project outcomes. Position Responsibilities: Elicit, analyze, decompose, and allocate system and subsystem requirements from stakeholder needs and higher-level system specifications Create, edit, and maintain well-structured, testable requirements using a requirements management tool Develop and maintain system architecture descriptions (functional, logical, physical) and traceability from requirements to architecture and verification Author and maintain specifications and Interface Control Documents (ICDs) that define interfaces between systems and subsystems; manage ICD baselines and change control Develop verification plans, procedures, and test cases aligned to requirements; coordinate and perform verification activities (analysis, inspection, demonstration, test) and document results Support integration activities and resolve interface mismatches and discrepancies between subsystems through engineering change proposals or interface updates Maintain

Senior Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security’s Experimental Systems Group (ESG) is hiring Senior Systems Engineer to join our team at Seal Beach or El Segundo, CA. We are looking for a Senior Systems Engineer with proven expertise in requirements development and management, verification and validation (V&V), system architecture, technical specifications, and Interface Control Documents (ICDs). The successful candidate will be adept at transforming stakeholder needs into clear, actionable requirements, developing and sustaining system-level architectures, authoring and overseeing technical specifications and ICDs, and coordinating verification activities across all system components to ensure seamless integration and performance. Position Responsibilities: Elicit, analyze, decompose, and allocate system and subsystem requirements from stakeholder needs and higher-level system specifications Create, edit, and maintain well-structured, testable requirements using a requirements management tool Develop and maintain system architecture descriptions (functional, logical, physical) and traceability from requirements to architecture and verification Author and maintain specifications and Interface Control Documents (ICDs) that define interfaces between systems and subsystems; manage ICD baselines and change control Develop verification plans, procedures, and test cases aligned to requirements; coordinate and perform verification activities (analysis, inspection, demonstration, test) and document results Support integration activities and resolve interface mismatches and discrepancies between subsystems through engineering change proposals or interface updates<

Software Systems Engineer (Associate or Experienced) Company: The Boeing Company The Boeing Company has an exciting opportunity for a Software Systems Engineer to join the Satellite Communication (SATCOM) Mission Planning Software Engineering team in Colorado Springs, CO. This position will support the Boeing Defense, Space & Security (BDS) Satellite Systems Software Engineering organization. Our teams are currently hiring for a broad range of experience levels including; Associate and Experienced Software Engineers. The Satellite Communication (SATCOM) program is a critical part of the U.S. military’s nuclear command, control, and communications (NC3) network, providing nuclear-survivable connectivity. Our team develops software tools and services for advanced satellite and ground systems. This role offers the opportunity to work in a fast-paced development environment using modern, scalable technology and tools. Our team works in an Agile and CI/CD environment with automated testing, vulnerability scanning, and quality scanning capabilities. Position Responsibilities: Develops and maintains requirements, architecture, algorithms, interfaces, and designs for high-performance APIs between front-end and back-end software services Supports software development activities in an Agile environment using DevSecOps methodologies, including integration of completed software components into a fully functional software system Supports the development of critical features and support the full development lifecycle from design through deployment Builds, architects, and consumes APIs and backend services as part of the platform ecosystem, with an emphasis on

About the Role We are seeking a Cloud Infrastructure Engineer to help design and evolve the platforms that power OpenAI’s products. In this role, you will be a hands-on technical leader, driving the architecture, scalability, reliability, and security of critical infrastructure systems. You will help define how we build and operate infrastructure at the next order of magnitude, while influencing technical direction across teams. This role is both deeply technical and highly strategic, requiring strong ownership, sound judgment, and the ability to partner effectively across engineering, product, and research organizations. In this role, you will: Design and build scalable, reliable, and secure infrastructure platforms that power OpenAI products Evolve cloud infrastructure abstractions that enable rapid product development across teams Architect systems to support significant growth, performance, and operational complexity Improve server orchestration, networking, distributed systems reliability, and infrastructure security posture Influence technical direction and infrastructure strategy across multiple teams Partner closely with product, research, and engineering teams to align infrastructure with evolving needs Own operational excellence, including participation in on-call rotations, incident response, and production readiness Mentor engineers and raise the overall technical bar of the organization Contribute to a culture of high ownership, low ego, and thoughtful collaboration You might thrive in this role if you: 8+ years of experience building and operating large-scale infrastructure systems Deep expertise in Kubernetes and container orchestration at scale Strong experience designing cloud abstractions and platform infrastructure (AWS, GCP, Azure, or similar) Proven track record of leading complex technical initiatives across teams Experience operating highly reliable, secure, and scalable distributed systems Security engineering experience or security backgroun

About Flexport: At Flexport, we believe global trade can move the human race forward. That’s why it’s our mission to make global commerce so easy there will be more of it. We’re shaping the future of a $10T industry with solutions powered by innovative technology and exceptional people. Today, companies of all sizes—from emerging brands to Fortune 500s—use Flexport technology to move more than $19B of merchandise across 112 countries a year. The recent global supply chain crisis has put Flexport center stage as we continue to play a pivotal role in how goods move around the world. We are proud to have the support of the best investors in the game who believe in our mission, solutions and people. Ready to tackle global challenges that impact business, society, and the environment? Come join us. The Opportunity: Flexport IT is looking for a Senior Systems Engineer (Identity & Access) . In this role, you will design, implement, and administer our Identity and Access Management (IAM) solutions to ensure secure, efficient user lifecycle management. While you are our resident Okta expert, you are also a high-level IT generalist. You will oversee our broader SaaS ecosystem (Google Workspace, Slack, Jira) and endpoint management infrastructure (Jamf, Intune). Your expertise will drive automation, protect sensitive data, mitigate security risks, and maintain compliance in a heavily regulated industry. You will continually strive towards automation of toil. If you are still manually doing the same operational tasks 18 months from now, something has gone wrong. Flexport’s book of business is growing fast, but the promise of technology is that we can grow our business faster than our headcount. The automation you build will be a key factor in that effort. You Will IAM Architecture: Design, implement, and maintain the end-to-end lifecycle of Identity and Access Management platforms. Okta & Directory Trust: Administer Okta, directory services, Multi-Fact

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. Vanta's Corporate Engineering team is the infrastructure layer that keeps 1,500+ people connected, secure, and moving fast. This role leads the shift from a reactive support function to a platform function the whole company relies on. Corporate Engineering owns the systems, tooling, and access infrastructure Vanta runs on. From identity and device management to AI tooling infrastructure and ITSM, CE makes sure Vanta's people have the right access, the right tools, and the right guardrails on day one and every day after. CE is at an inflection point. The company has scaled quickly, AI tooling is live company-wide, and the team is ready for a leader who sets technical direction, establishes clear ownership, and builds the leadership layer beneath them. As Sr. Manager, Systems Engineering, you will lead a team of experienced engineers, own several of the company's highest-priority platform initiatives, and make CE a function the rest of Vanta builds on rather than routes around. What you’ll do as a Senior Manager, Systems Engineering at Vanta: Lead, coach, and grow a team of systems engineers and a tech lead. Set clear expectations, hold a high bar, and develop the people who build Vanta's most critical internal systems. Own joiner, mover, and leaver automation end to end in Okta Workflows, so access is correct on day one, follows people through role changes, and closes completely on departure, including API keys and service credentials. Build and own device assurance across macOS and Windows, defining OS, browser, and device-state policy ahead of enforcement rather than in response to it. Rationalize the ITSM estate so self-servi

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Washington D.C., London and Amsterdam. Security Engineering is the engineering function inside the Plaid security org that focuses on developing the industry-leading security systems and infrastructure. Security Engineering owns most of Plaid’s security-related infrastructure: secure data storage, key management systems, internal identity platform, internal authentication systems, internal permission management, and internal authorization service. We develop solutions across data encryption, key management, access control, and data loss prevention to protect sensitive consumer data. We believe in the Zero Trust security model and are always looking for ways to improve our authentication and access control platforms. About the role: You will develop security capabilities to secure Plaid infrastructure and sensitive data access. You will lead the team’s strategic planning in collaboration with the manager and other senior engineers. You will own, maintain, and build Plaid’s security infrastructure and services like IAM Gateway, Key Management System and Network Firewall. You will consult with product engineers to ensure Plaid services meet security standards. You will help educate and support other engineering teams to improve security in

Satellite Systems Engineer (Associate) Company: The Boeing Company Boeing Defense, Space, and Security (BDS) seeks a seeks a Satellite Systems Engineer to serve as Global Positioning System (GPS) Satellite Bus Systems Engineer to serve on the Global Positioning System (GPS) IIF program, within our Space, Intelligence & Weapon Systems (SI&WS) division located at El Segundo, CA. GPS is a satellite-based radio-navigation system owned by the United States government and operated by the United States Space Force and is the world's first global utility. GPS provides position, navigation, and timing (PNT) data to military and civilian users globally with countless applications and an unlimited number of users. Boeing has over 45 years of history in GPS, including achieving full system capability in 1995. The current Boeing team supports the US Space Force by sustaining and monitoring the health and capabilities of the 12 GPS Block IIF satellites in the GPS constellation, launched from 2010 to 2016. The Boeing GPS sustainment team also provides support to our U.S. Space Force customer with reports and expertise on all aspects of the GPS system. Sustainment efforts will continue through the life of the Block IIF satellites, with a design life expectancy to 2031 and beyond. The program currently operates under a 10-year sustainment contract, from 2022 to 2031. As GPS Satellite Bus Systems Engineer , you will be a key member of a high-performing team engaged in critical projects related to the GPS IIF satellite constellation. You will train to become a subject matter expert for satellite Bus subsystems on the GPS Block IIF satellites and for GPS performance trending and analysis. You will also work closely with the spacecraft payl

Mission Systems Engineers (Associate or Experienced) Company: The Boeing Company Boeing Defense Space & Security (BDS) has an exciting opportunity for Mission Systems Engineers (Associate or Experienced) to join our Experimental Systems Group (ESG) located in Seal Beach, CA; with options to work from Aurora, CO or El Segundo, CA ; to support development of new first-of-kind space vehicles and missions. ESG supports a variety of government customers spanning technology domains, and is an extremely fast-paced, responsive development environment delivering new capabilities to customers rapidly and affordably. The ESG portfolio consists of a range of platforms and technologies including the X-37B, the world’s first fully autonomous reusable spaceplane, which is continuing to shape the future of space technology while flying its eighth mission. As a mission systems engineer, you will be expected to lead modelling and simulation efforts and enable your assigned programs’ development from early capabilities studies through demonstration. You will serve as a core point of contact for customers and will work directly with subject matter experts across the business to quickly iterate and converge on achievable solutions that meet our customers’ needs. Our development timelines are aggressive, and you will be asked to develop solutions to previously unsolved problems. In this role, you will work in multidisciplinary teams to bring concept of operations to fruition in support of our customers’ mission objectives. You will work both as an individual contributor and as a product lead. An ideal candidate has a strong technical background across all spacecraft subsystems with particular depth in Attitude Control Systems (ACS)/Guidance Navigat

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An Overview of This Role Staff Systems Engineer, IT is a senior, hands-on engineering role for a generalist who is comfortable owning a broad set of platforms. You'll own the systems and integrations behind the employee lifecycle, onboarding, role changes, and offboarding, and you'll build them the way we build software: as infrastructure-as-code, with SRE practices behind them so they are versioned, observable, and reliable. You'll be the technical owner of GitLab's ITSM platform and the AI capabilities layered on top of it, designing virtual agents, agentic workflows, and knowledge experiences that resolve requests before they

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 The Consumer Devices team at OpenAI builds end-to-end hardware and software systems that bring AI into the physical world. We work at the intersection of custom silicon, embedded systems, operating systems, and cloud services to deliver reliable, production-ready devices at scale. About the role We are looking for an Operating Systems Engineer to build and harden the OS foundations for OpenAI products. We are especially interested in experienced, passionate, and innovative operating systems developers who thrive on building foundational platform software and solving hard problems in security, privacy, performance, power, and reliability. You will work across the OS kernel, core OS services, security and privacy primitives, performance and power, and the frameworks that connect applications and UI to the system. This role emphasizes deep debugging and systems ownership from development through production. You will collaborate closely with embedded, firmware, hardware, application, and product engineering teams. Experience with hardware bring-up is a plus, but not required. What you will do Work on end-to-end OS capabilities spanning the OS kernel, userspace services, application frameworks, UI toolkits, and application-facing APIs. Develop, integrate, and maintain OS components, both kernel-bound and in userspace, including scheduling, memory management, filesystems, drivers, IPC/RPC mechanisms, and security-relevant subsystems. Build and maintain core OS services and daemons (init, service management, device discovery, networking primitives, time, logging, update hooks, crash handling, and so on). Design and implement security and privacy mechanisms: Secure boot and measured boot integration points (where applicable). Mandatory access control and sandboxing. Secrets management, secure storage, key handling, and least-privilege service design. Privacy-preserving telemetry, data minimization, and user-consent oriented system behaviors. Establish a perfo

Systems Engineer (Modeling & Simulation) (Associate or Mid-Level) Company: The Boeing Company Boeing Defense & Security (BDS) is looking for an Associate or Mid-Level Systems Engineer (Modeling & Simulation) (Level 2 or 3) to join our multi-disciplined engineering team in Albuquerque, New Mexico designing and developing advanced concepts on a DOD propriety program . This position will join a multi-disciplined team of engineers and scientists to develop and test advanced concepts for the Department of Defense. Work could include such things as image processing and analysis, radiometry, modeling and simulation, evaluation of field data to anchor models, and wherever the data may lead throughout the program. The ideal candidate will have strong MATLAB or Mathematic skills, an interest in data analysis; modeling and simulation; and some knowledge of optics and electro-optics. Position Responsibilities: Assists in developing and validating requirements for various electro-optical systems and components Uses data analysis results and output of mod/sim tools to assist in the development and validation of requirements for electro-optical systems, mechanical systems, interconnects and structures Works with engineering teams to collect and analyze data used to anchor models Performs complicated trade studies, modeling, simulation and other forms of analysis to predict component, interconnects and system performance and to optimize design around established requirements Defines and conducts critical analyses of various kinds to validate performance of designs to requirements Defines and conducts tests to validate performance of designs to requirements and anchor models to fi

Systems Software Engineer, Missile Defense National Team (Associate, Experienced, Senior) Company: The Boeing Company The Boeing Company is looking for a Systems Software Engineer, Missile Defense National Team (Associate, Experienced or Senior level) to join our Missile Defense National Team in Colorado Springs, CO or Huntsville, AL. This position requires an active U.S. Secret Security Clearance for which the U.S. Government requires U.S. Citizenship. The Missile Defense National Team (MDNT) was established in 2004 to develop and deploy the Missile Defense Agency’s (MDA) Command, Control, Battle Management, and Communications (C2BMC) system. This system ingests data from sensors around the globe to create a single source of information for the warfighter to enable engagements. The C2BMC Program is a full lifecycle defense contract providing solutions across the engineering capability to include system architecture, development, deployment, operations and maintenance, and sustainment of the Missile Defense System (MDS). This work integrates efforts from multiple companies (teammates) with systems engineering experience in model-based systems engineering (MBSE), requirements development, modeling and simulation (M&S), network design, integration and test, and analysis. This position will focus on supporting the Ballistic Missile Defense System (BMDS). The Boeing Missile Defense Programs support the Missile Defense Agency's (MDA) mission to develop and deploy a layered Missile Defense System to defend the United States, its deployed forces, allies, and friends from missile attacks in all phases of flight. Be a part of our passionate and highly motivated team who are excited to be on the forefront of defense of