Security Software Engineer

Join SpaceX as a Security Software Engineer and play a pivotal role in safeguarding our advanced technologies. You will be involved in developing, implementing, and maintaining cutting-edge security software solutions to counteract emerging cyber threats. Collaborate with a team of passionate engineers and contribute to the safety and security of SpaceX’s missions.

Join SpaceX as a Principal Security Software Engineer, where you will play a critical role in ensuring the security and integrity of our software systems. You will lead initiatives to develop, implement, and enhance security protocols that safeguard our operations and data.

At SpaceX, we envision a future where humanity is exploring the vast universe, and we are dedicated to making that vision a reality. Our mission is to develop groundbreaking technologies that enable human life on Mars and beyond.Position: Security Software Engineer, Applied Computing (Starshield)Join our Starshield team, which utilizes SpaceX's Starlink technology to bolster national security. While Starlink serves consumer and commercial needs, Starshield is tailored for government applications, focusing on earth observation, communication, and hosted payloads. Our mission includes creating highly reliable in-space mesh networks, developing secure systems for guaranteed access to space, and innovating next-generation communication and sensing software.As a Security Software Engineer, your role will involve harnessing AI to automate security measures and ensure the seamless integration of AI into both new and existing systems. If you are passionate about AI, security, and the challenges of merging the two, this position is an excellent fit for you.The ideal candidate will have strong expertise in:Software engineeringAgent engineering and securityLLM attack surfacesNetwork and operating system securityIncident response and adversary detectionSuccess in this role requires flexibility, clear communication, and the ability to forge productive relationships with other engineering teams. If you thrive on building high-quality products and enjoy the challenge of outsmarting adversaries on an interplanetary scale, we want to hear from you!

Join SpaceX as a Principal Security Software Engineer in our Applied Computing division focused on Starshield, a cutting-edge initiative aimed at enhancing our security software capabilities. In this pivotal role, you will lead the development of innovative software solutions designed to protect sensitive information and maintain the integrity of our systems. Your expertise will guide the team in tackling complex security challenges and ensuring that our products meet the highest standards of reliability and security.

About UsAt Helsing, we are pioneering the future of defense through artificial intelligence. Our mission is clear: to safeguard our democracies and ensure that open societies retain the authority to make sovereign decisions while upholding their ethical standards.We recognize the profound responsibility that comes with developing and deploying powerful technologies such as AI. Our commitment to thoughtful innovation is unwavering.As a dynamic and dedicated team of engineers, AI experts, and program managers, we invite mission-driven individuals to join us in addressing some of the most intricate and impactful challenges in the defense sector. Our culture fosters openness and transparency, encouraging constructive debates about technology use in defense, its advantages, and ethical considerations.Your RoleJoin us as we establish our first engineering team in the U.S. based in Washington, DC. As a key early member, you will play a crucial role in creating a secure infrastructure for our applications and cloud architecture. Your responsibilities will bridge security and engineering, encompassing cloud architecture, application SBOM, vulnerability scanning, and continuous monitoring of our cloud infrastructure (AWS/Azure/GCP).This position serves as a vital link between engineering and security operations, focusing on risk identification, designing and implementing security controls (firewalls, IAM, encryption), and performing in-depth analyses of cloud-native security logs to detect and address threats.Daily ResponsibilitiesCloud Infrastructure Security Design: Architect and implement secure cloud infrastructure while ensuring compliance with leading security frameworks (NIST, CIS Benchmarks, ISO 27001).Security Operations Collaboration: Collaborate closely with engineering teams to integrate security best practices into all phases of the software development lifecycle.Vulnerability Management: Conduct regular assessments and penetration tests to identify vulnerabilities and implement remediation strategies.Threat Intelligence: Stay updated on emerging threats and security trends, providing recommendations for proactive measures.

At SpaceX, we believe in a future where humanity explores the stars, pushing the boundaries of what's possible. Our mission is to develop the technologies that will make this dream a reality, ultimately enabling human life on Mars.SENIOR SECURITY SOFTWARE ENGINEER, APPLIED COMPUTING (STARSHIELD)Starshield utilizes SpaceX’s groundbreaking Starlink technology and launch capabilities to bolster national security initiatives. While Starlink serves consumer and commercial markets, Starshield is tailored for government applications, focusing on earth observation, communications, and hosted payloads. Our team is dedicated to constructing highly reliable in-space mesh networks, designing secure systems for guaranteed access to space, and developing next-generation communication and sensing software.As a Senior Security Software Engineer, you will harness artificial intelligence to automate security processes and facilitate secure AI integration into new and existing systems. If you are passionate about AI, security, and the innovative fusion of both, this position is designed for you.We are looking for candidates with the following skills:Software engineeringAgent engineering and securityUnderstanding of LLM attack surfacesNetwork and operating system securityIncident response and adversary detectionSuccess in this role requires flexibility, clear communication, and the ability to build and maintain effective relationships with other engineering teams. If you are driven to create top-quality products, enjoy the challenge of outsmarting adversaries, and wish to make a significant impact on an inter-planetary scale, you will thrive here.

Join the innovative team at SpaceX as a Product Security Engineer for our Starshield program. In this role, you will be responsible for ensuring the security of our cutting-edge products and technologies. You will collaborate with cross-functional teams to identify and mitigate potential security risks, implement best security practices, and contribute to the overall safety and reliability of our space systems.

Position Overview:Join Spry Methods as an Information Systems Security Engineer (ISSE) and play a vital role in enhancing the security of mission-critical information systems within a dynamic government environment. You will be instrumental in designing, implementing, and managing cybersecurity controls across both enterprise and mission systems. Collaborating closely with engineering, operations, and security teams, you will ensure compliance with federal cybersecurity standards and authorization requirements.

Anduril Industries is at the forefront of defense technology, dedicated to revolutionizing military capabilities for the U.S. and its allies through the integration of advanced technology. By leveraging innovative expertise and a modern business model, we are reshaping the design, construction, and deployment of military systems. Our state-of-the-art systems are driven by Lattice OS, an AI-enhanced operating system that seamlessly transforms vast data streams into a dynamic, real-time 3D command and control center. As global strategic competition intensifies, Anduril is resolutely focused on delivering cutting-edge solutions in autonomy, AI, computer vision, sensor fusion, and networking technology to military applications within months, not years.ABOUT THE TEAMThe Security Engineering team at Anduril is seeking a talented Senior Security Engineer to create top-tier defensive controls that safeguard our infrastructure connected to advanced defense technology products. In this pivotal role, you will conceptualize and execute innovative security architectures that shield our global network while acting as a vital security ally across the organization.ABOUT THE JOBWHAT YOU’LL DODesign and implement robust security controls across cloud environments, production setups, and corporate infrastructures.Develop tools and systems aimed at enhancing security posture and operational efficiency.Conduct thorough security architecture and design evaluations for various systems and applications.Automate processes to detect, monitor, and resolve security vulnerabilities.Collaborate across infrastructure, application, and operational security domains.

Role overview MetroStar Systems seeks a Senior Network Security Engineer III in Washington, DC. This position centers on protecting network infrastructure and maintaining a secure operational environment. Candidates must be clearable and demonstrate strong attention to detail, along with a proactive mindset toward network security. What you will do Identify vulnerabilities within network systems and provide recommendations for effective solutions Implement security measures to reinforce network defenses Support and encourage best practices in network security across the organization Apply expertise to help maintain a secure and reliable infrastructure Location This position is based in Washington, DC. Work is onsite or as determined by MetroStar Systems.

About Helsing Helsing develops artificial intelligence solutions to help protect democracies worldwide. As the company grows its presence in the United States, Helsing seeks professionals who bring dedication and expertise to complex security challenges. Role Overview The Industrial Security Lead will oversee and strengthen Helsing’s security framework for U.S. operations based in Washington, DC. This includes responsibility for facility security, personnel security, CMMC compliance, and COMSEC operations. The role ensures adherence to the company’s Special Security Agreement and addresses the challenges of foreign ownership, control, or influence (FOCI) mitigation. The position offers the chance to design and implement security infrastructure that supports advanced AI technologies for defense applications. Key Responsibilities Serve as Facility Security Officer (FSO) for the U.S. subsidiary, maintaining full compliance with NISPOM (32 CFR Part 117), DCSA requirements, and all obligations under the Special Security Agreement (SSA).

About Virtru:At Virtru, we are revolutionizing the approach to data security. Instead of solely focusing on locking data down, we empower users to share it responsibly while maintaining security, privacy, and control.Our robust suite of data protection applications and an open platform are fostering a vibrant ecosystem of innovation. Through our Trusted Data Format (TDF) open standard, we redefine data security, enabling collaboration and sharing instead of restricting it.Think of us as the Android of data protection: a dynamic platform built on an open core that developers and partners can utilize, alongside our industry-leading applications that illustrate the potential of reimagined security.Supported by leading investors like Iconiq Capital, Bessemer Venture Partners, Foundry Capital, and Tiger Global, we are guiding Fortune 500 companies and government entities toward a new understanding of data security—one that embraces sharing, collaboration, and innovation without compromise.This is a paid Summer 2026 Internship. This is a temporary, full-time internship. Candidates must be able to commit to a 10 week program.Compensation: $35 - $40/ hourTeam & Position Details:Join our H3 (Horizon) team as a Graduate Software Developer Intern, where you will collaborate with our leading System Architect. Your role will involve conducting extensive research and documenting innovative directions for our R&D efforts, while completing high-quality tasks and engaging in personally selected research.We are looking for a graduate-level intern who is passionate about solving intriguing problems through high-quality software implementations in languages such as Java, Go, and Python. The ideal candidate will share our commitment to digital privacy, software development, and delivering exceptional user experiences. We foster a culture of curiosity and growth at Virtru. As an Engineer here, you will be at the forefront of Zero-Trust—the future of data and service protection!As a Graduate Software Developer Intern, your responsibilities will include:Define the research problem: Identify challenges facing our engineering team. Engage in discussions and discovery with your manager to learn more about Virtru’s initiatives and departmental goals, particularly our focus on secure digital data clean rooms....

Role Overview MetroStar Systems is hiring a Senior Software Engineer II in Washington, DC. This position focuses on building software solutions that support key projects across the organization. The role calls for someone with strong technical skills and experience delivering high-quality, efficient code. What You Will Do Design, develop, and maintain software applications Work on projects that support MetroStar Systems’ goals and operations Collaborate with team members to solve complex technical challenges Who We’re Looking For Proven experience creating effective software solutions Strong problem-solving skills and attention to detail Interest in contributing to impactful projects within the organization Location This role is based in Washington, DC.

Join hhaexchange as a Lead Software Engineer and play a pivotal role in shaping the future of our innovative software solutions. You will lead a talented team of engineers, driving best practices in software development and ensuring the delivery of high-quality products that empower home care agencies and improve patient outcomes.

Join our innovative team at Bluesight as a Senior Full Stack Software Engineer, where you'll be at the forefront of developing cutting-edge software solutions that enhance operational efficiency and deliver exceptional user experiences. We are looking for a tech-savvy individual who thrives in a collaborative environment and is eager to tackle complex challenges.As a Senior Full Stack Software Engineer, you will leverage your expertise in both front-end and back-end technologies to build scalable applications. Your role will be pivotal in shaping our product architecture and ensuring seamless integration with various services. You will collaborate closely with cross-functional teams to define requirements, develop solutions, and implement best practices in software development.

Join SpecterOps as a Defensive Security Analyst and play a pivotal role in enhancing security operations for our valued clients. In this hybrid position, you will collaborate directly with client teams, providing independent support in managing and monitoring Security Operations Center (SOC) systems. We are seeking a detail-oriented individual with robust technical skills in security operations, exceptional interpersonal abilities, and a self-directed approach, ideally within a service-based information security environment.

About UsHelsing is at the forefront of defense AI technology, dedicated to safeguarding our democratic values. Our goal is to establish technological supremacy that empowers open societies to make independent choices and uphold their ethical standards.As a defender of democracy, we recognize our unique obligation to thoughtfully develop and implement transformative technologies like AI. We take this duty with utmost seriousness.We are a passionate and dedicated team of engineers, AI experts, and program managers, seeking mission-driven individuals to join our European teams and leverage their skills to tackle some of the most challenging and significant issues. We foster a transparent and open culture that encourages constructive discussions about the application of technology in defense, its advantages, and its ethical considerations.The RoleAs an IT Engineer, you will oversee Helsing's IT and infrastructure in the United States. Your responsibilities will span across teams and locations to create a secure and reliable infrastructure that supports collaborative efforts focused on the transmission, development, and delivery of defense technologies in compliance with relevant regulations, standards, and industry best practices. You will play a critical role in enabling Helsing to provide advanced systems that address the challenges of future battlefields.Daily ResponsibilitiesConfigure and manage endpoints, including workstations, laptops, and servers.Provide support for an office consisting of approximately 10-25 employees.Establish and maintain on-premises computer environments primarily based on Linux.Manage and configure our network and VPN infrastructure.Collaborate with Helsing's broader IT team to optimize the operational efficiency of Helsing US's corporate, development, and customer environments, largely utilizing Microsoft 365, Azure, and other SaaS solutions.

At Anduril Industries, we are a pioneering defense technology firm dedicated to enhancing the military capabilities of the United States and its allies through state-of-the-art technology. We leverage the innovative strategies, expertise, and advanced technologies from some of the most forward-thinking companies of the 21st century to revolutionize the design, construction, and commercialization of military systems. Our systems are powered by Lattice OS, an AI-driven operating system that integrates thousands of data streams into a real-time, 3D command and control platform. As we navigate a new era of strategic competition, Anduril is steadfast in its commitment to deploy cutting-edge autonomy, artificial intelligence, computer vision, sensor fusion, and networking technologies to the military in accelerated timelines.ABOUT THE TEAMAnduril Labs comprises a diverse team of technologists, solution architects, engineers, and military experts. Our mission is to spearhead innovation across all Anduril business units and product lines by developing groundbreaking concepts and next-gen technologies that elevate Anduril’s competitive stance and provide our customers with a decisive technological edge in defense operations.ABOUT THE JOBWe are on the lookout for a skilled and visionary Quantum Software Engineer to become a vital member of our innovative team at Anduril Labs. As part of your responsibilities, you will play a crucial role in creating and delivering transformative quantum solutions tailored for both internal projects and external client applications. You will collaborate closely with delivery leads, application developers, and other solution architects, alongside internal and external partners, to conceptualize, develop, and deploy cutting-edge quantum solutions on advanced quantum-inspired, quantum annealing, and quantum gate platforms to address real-world defense and national security challenges.The ideal candidate will possess a solid grounding in quantum computing principles along with practical experience in classical and quantum software development. You will utilize your expertise to convert intricate challenges into (hybrid) quantum algorithms, applications, and services. This includes crafting robust software solutions and integrating quantum-enhanced capabilities into both existing and new defense systems. If you are driven by the desire to apply theoretical quantum concepts to yield impactful, high-stakes results, and you thrive in a collaborative and innovative environment, we invite you to apply.

At SpaceX, we believe that a future where humanity explores the stars is far more exhilarating than one where we remain confined to Earth. Our mission is to develop advanced technologies that facilitate this vision, ultimately aiming to establish human life on Mars.SOFTWARE ENGINEER, BEAM PLANNING (STARLINK)As a part of the SpaceX team, you will contribute to the deployment of Starlink, the most advanced broadband internet system globally, which is revolutionizing internet access for millions. Starlink comprises the largest satellite constellation, delivering fast and reliable internet services worldwide. We design, build, test, and operate every component of the system—from thousands of satellites to the consumer receivers that enable users to connect within minutes of unboxing, and the software that integrates it all. We are just beginning to explore the vast potential of Starlink and are looking for top-tier engineers to maximize its benefits for communities and businesses around the globe.In your role as a Software Engineer on the Starlink program, you will tackle challenges aimed at optimizing our deployed hardware. Our mission is to ensure that our customers receive the best satellite internet experience, particularly focusing on providing affordable, transformative broadband access to underserved communities.Our software engineers oversee the entire software lifecycle, which includes development, testing, and support. We expect our engineers to effectively connect software design with real-world performance outcomes. Your contributions will have a significant and measurable impact on the world around us.

CGS Federal is actively seeking a dedicated Junior Physical Security Specialist (PhySS) to enhance our critical operations supporting a federal client. This role is pivotal in maintaining a secure environment while ensuring compliance with established physical security standards.Key Responsibilities:Manage and secure Sensitive Compartmented Information Facility (SCIF) environments, ensuring adherence to all security protocols and standards.Collaborate effectively with cross-functional teams and stakeholders to foster a secure operational atmosphere.