About Cogent SecurityCogent Security is at the forefront of cybersecurity innovation, leveraging Applied AI to develop next-generation AI agents. In an era where cyber attacks evolve rapidly, our AI Taskforce analyzes vast amounts of enterprise data to proactively address vulnerabilities and prevent critical breaches.We combine pioneering research with practical execution, ensuring that our innovative solutions meet real-world challenges. Our Cogent Research division acts as our dedicated AI lab, driving the development of advanced security workflows.Since our emergence from stealth mode, we have rapidly grown, collaborating with Fortune 500 companies to secure complex production environments globally.Supported by Greylock, we have gathered a team of top talent from renowned institutions and leading organizations in the AI and cybersecurity sectors.About the RoleAs an Agent Engineer at Cogent Security, you will be pivotal in designing, building, and deploying critical AI agents tailored for complex client environments. Your role is highly cross-functional, involving direct collaboration with customers to understand their unique needs, adapting our platform accordingly, and iterating on scalable solutions to handle millions of real-world security events.You will manage projects from inception to deployment, including data onboarding and integrating feedback into our core agent platform. Your contributions will shape how AI agents detect threats, triage incidents, and automate security workflows for some of the most sophisticated organizations worldwide.This position is ideal for engineers who excel in dynamic environments, enjoy tackling complex technical challenges, and wish to see the tangible impact of their work.

About Our TeamAt OpenAI, our mission is to pioneer the secure advancement of agentic AI systems. Our dedicated team focuses on designing, implementing, and continuously improving security policies, frameworks, and controls that protect OpenAI’s essential assets, including user and customer data, from the unique risks posed by agentic AI technologies.About the RoleAs a Security Engineer on the Agent Security Team, you will be instrumental in safeguarding OpenAI’s cutting-edge agentic AI systems. Your responsibilities will include crafting and executing robust security frameworks, policies, and controls to ensure the protection of OpenAI’s vital assets and facilitate the safe rollout of agentic systems. You will create thorough threat models, collaborate closely with our Agent Infrastructure group to strengthen the platforms that underpin OpenAI’s most sophisticated agentic systems, and spearhead initiatives to enhance safety monitoring pipelines at scale.We are in search of a dynamic engineer who thrives in uncertain environments and can deliver impactful contributions from day one. You should be ready to deploy solutions swiftly while upholding a high standard of quality and security.We seek individuals capable of driving innovative solutions that will establish industry benchmarks for agent security. Your expertise in securing complex systems and devising robust isolation strategies for emerging AI technologies will be essential, all while prioritizing usability. You will effectively communicate across various teams and functions, ensuring your solutions are scalable and robust, while engaging collaboratively in a forward-thinking environment. In this fast-paced atmosphere, you will tackle intricate security challenges, shape OpenAI’s security strategy, and play a crucial role in promoting the safe and responsible deployment of agentic AI systems.This position is based in San Francisco, CA. We operate on a hybrid work model, requiring 3 days in the office each week, and offer relocation assistance to new employees.Your Responsibilities Will Include:Designing and implementing security controls for agentic AI – develop, execute, and refine identity, network, and runtime-level defenses (e.g., sandboxing, policy enforcement) that integrate seamlessly with the Agent Infrastructure stack.Creating production-quality security tooling – deliver code that enhances safety monitoring pipelines across agent executions on a large scale.Collaborating...

About the TeamAt OpenAI, we are driven by a mission to ensure that artificial general intelligence serves the interests of all humanity. Our Security team plays a pivotal role in safeguarding OpenAI's innovative technologies, our talented workforce, and our diverse product offerings. We emphasize a technical yet operational approach, dedicated to supporting all research and production at OpenAI. Our core tenets include prioritizing impactful actions, empowering researchers, anticipating transformative technologies, and fostering a robust security culture.About the RoleWe are on the lookout for an outstanding Principal Offensive Security Engineer to elevate OpenAI's security framework. This role transcends traditional red teaming; it provides an opportunity to delve deeply into security challenges, create innovative attack simulations, and collaborate closely with defensive teams to drive strategic enhancements throughout the organization.In this position, you'll not only identify vulnerabilities but also take the lead in resolving them, harnessing cutting-edge technologies to automate offensive security techniques, and utilizing your unique attacker perspective to inform our overarching security strategy.Your primary focus will be on rigorously testing our agent-powered products like Codex and Operator. These systems are valuable targets due to their rapid evolution, ability to perform sensitive user actions, and extensive attack surfaces. You'll play a vital role in fortifying our agents by identifying realistic vulnerabilities arising from the interplay between applications, infrastructure, and models.Key ResponsibilitiesProactively hunt for vulnerabilities within the interactions of our agentic products, encompassing applications, infrastructure, and models.Execute open-scope red and purple team operations, simulating authentic attack scenarios.Collaborate effectively with defensive security teams to enhance detection, response, and mitigation capabilities.Conduct thorough penetration testing across our diverse portfolio of products.Leverage advanced automation and OpenAI technologies to optimize your offensive security initiatives.Articulate insightful, actionable findings in a clear and compelling manner to drive impactful change.Influence security strategy by providing expert recommendations based on your findings.

About Cogent SecurityCogent Security is pioneering the future of cybersecurity through Applied AI, creating advanced AI agents designed to combat rapidly evolving cyber threats. Our AI Taskforce analyzes vast datasets to neutralize potential breaches before they impact our clients.Our commitment to innovation combines cutting-edge research with practical application, ensuring our solutions are at the forefront of technology. In addition to our product development, Cogent Research acts as our applied AI laboratory, supplying the expertise required to create highly effective security workflows.Since our launch from stealth mode, Cogent has seen remarkable growth, collaborating with Fortune 500 companies to secure some of the most intricate production environments globally.Backed by Greylock, our team consists of exceptional talents from leading universities such as Stanford, Berkeley, and Carnegie Mellon, as well as high-growth companies like Scale AI and Tesla, and cybersecurity experts from stalwarts like Wiz and DeepMind.

About Cogent SecurityCogent Security is an innovative Applied AI Lab pioneering the future of AI agents in the realm of cybersecurity. In a world where cyber threats evolve at unprecedented speeds, our 'AI Taskforce' analyzes vast amounts of enterprise data to proactively address vulnerabilities and avert critical breaches.We remain at the forefront of technology by merging cutting-edge research with practical applications. Our dedicated Cogent Research team fuels our mission, ensuring we develop truly effective security workflows powered by AI.Since our inception, Cogent has rapidly grown, collaborating with Fortune 500 companies to safeguard the most intricate production environments globally.Supported by Greylock, our team comprises some of the brightest minds in applied AI, including experts from:Renowned universities such as Stanford, Berkeley, Penn, Duke, Carnegie Mellon, and Waterloo.High-growth unicorn companies like Scale AI, Databricks, Stripe, Tesla, and Coinbase.Leading cybersecurity specialists from Wiz, Abnormal AI, and Zscaler.Prestigious research institutions including DeepMind and SAIL.About the RoleAs we embark on building a suite of backend services and integrations with our design partners, we seek passionate and skilled Backend Engineers at both Senior and Staff levels, eager to thrive in the Applied AI domain.ResponsibilitiesDesign and implement critical backend subsystems and integration platformsComprehend business objectives and customer requirements to engineer backend subsystems that align with our technology strategies.Adapt systems to meet evolving needs of design partners and clients.Incorporate non-functional requirements such as compliance and security into system design.Establish scalable infrastructure foundationsPrepare for future growth in customer base, headcount, and data management by collaborating with your team to enhance infrastructure.

About Cogent SecurityCogent Security is at the forefront of innovation in cybersecurity, operating as an Applied AI Lab dedicated to developing next-generation AI agents. In an era where cyber threats evolve rapidly, our "AI Taskforce" analyzes vast amounts of enterprise data to proactively address vulnerabilities and prevent significant breaches.Blending cutting-edge research with practical implementation, our team works diligently to transform theoretical concepts into actionable security solutions. Our applied AI lab, Cogent Research, provides essential research capabilities that enable the realization of autonomous security workflows.Since our emergence from stealth mode, Cogent has seen impressive growth, collaborating with Fortune 500 companies to enhance security in some of the world’s most complex environments.Supported by Greylock, we have assembled a team of top-tier talent from influential universities and leading companies in the tech and cybersecurity sectors.

About Our TeamAt OpenAI, security is a core pillar of our commitment to ensuring that artificial general intelligence is beneficial to all of humanity. Our Security team plays a crucial role in safeguarding OpenAI’s technology, personnel, and products. We focus on creating effective technical solutions while maintaining operational excellence. Our guiding principles include prioritizing impactful actions, empowering researchers, preparing for transformative technologies, and fostering a robust security culture.About the RoleAs a Security Engineer specializing in Application Security, you will be at the forefront of identifying and addressing security vulnerabilities within our software applications. Your expertise will be applied through building innovative security tools, conducting code reviews, performing penetration testing, and executing thorough security assessments.We are seeking proactive individuals who can collaborate closely with development teams to ensure the integration of secure coding practices throughout the software development lifecycle. Your role will also encompass providing security guidance to developers and stakeholders, thereby enhancing the overall security awareness across the organization.This position is ideally based in San Francisco, Seattle, or New York City, but remote work options will be considered. Our hybrid work model includes three days in-office each week, along with relocation assistance available for new hires.Key Responsibilities:Conduct Security Assessments: Regularly perform security assessments, code reviews, and penetration tests to uncover vulnerabilities in applications.Develop Security Tools: Design and implement security tools, frameworks, and methodologies to shield applications from potential threats.Collaborate with Development Teams: Partner with development teams to ensure best security practices are embedded in the software development lifecycle, including secure coding standards.Threat Modeling and Risk Management: Engage in threat modeling and risk assessments to identify potential risks early and formulate effective mitigation strategies.Manage Vulnerabilities: Track, analyze, and oversee vulnerabilities in applications, providing guidance and support for remediation efforts.Incident Response: Participate in incident response efforts as necessary, ensuring swift action is taken to mitigate security incidents.

CoreWeave is seeking a Security Engineering Manager to lead the Platform Security team. This position is based in Livingston, NJ, New York, NY, Sunnyvale, CA, Bellevue, WA, or San Francisco, CA. The team’s mission is to embed security into CoreWeave’s Kubernetes-based platform and public cloud environments, supporting high-performance infrastructure for AI and machine learning workloads. Role overview This manager will oversee and expand the Platform Security engineering team, reporting to the Senior Director of Security Foundations. The focus is on hands-on leadership and technical execution, with an emphasis on building and implementing security controls rather than policy development. The role requires close collaboration with Infrastructure, Platform Engineering, Site Reliability Engineering, and other security teams to ensure security measures keep pace with business growth and evolving needs. What you will do Lead and grow the Platform Security engineering team. Integrate security into Kubernetes infrastructure and public cloud platforms such as AWS, GCP, and Azure. Define and execute strategies for cloud security posture, workload isolation, platform guardrails, image integrity, and multi-cloud security. Develop and implement security controls across CoreWeave’s infrastructure. Work closely with other technical teams to align platform security with business needs. The Platform Security team The Platform Security team at CoreWeave engineers systems that enforce security at the infrastructure layer. Their work spans both CoreWeave’s own Kubernetes-based platform and third-party public cloud environments. The team supports GPU-accelerated infrastructure for demanding AI and machine learning workloads, ensuring that both customer and internal services remain secure as CoreWeave’s global presence expands.

About the Role mercor is hiring a Security Engineer focused on Application Security in San Francisco or New York City. This role centers on protecting company applications from threats and vulnerabilities. The Security Engineer works closely with teams across the company to strengthen security practices and improve the overall security of our software. What You Will Do Work with engineers and other teams to apply security best practices throughout the development lifecycle Perform detailed security assessments of applications Identify and address new and existing security risks Help improve the security posture of mercor’s applications

Join Our Innovative TeamAt Twelve Labs, we are at the forefront of technology, developing state-of-the-art multimodal foundation models that enable video comprehension akin to human understanding. Our groundbreaking models have set new benchmarks in video-language modeling, enhancing our capabilities and revolutionizing media interaction and analysis.With impressive backing of $107 million in Seed and Series A funding from prestigious venture capital firms including NVIDIA’s NVentures, NEA, Radical Ventures, and Index Ventures, as well as renowned AI pioneers such as Fei-Fei Li and Alexandr Wang, our San Francisco headquarters serve as a hub for global innovation, complemented by a strong presence in APAC from Seoul.We cherish the unique journeys of our team members, believing that diverse cultural, educational, and life experiences fuel our collective creativity. We seek passionate individuals aligned with our mission to reshape technology. Join us in our quest to revolutionize video understanding and the realm of multimodal AI.Your RoleWe are on the lookout for a Staff Security Engineer to bolster our security team. Collaborating closely with our lead security engineer, you'll play a vital role in evolving and scaling our security initiatives. This generalist position offers a wide-ranging scope, encompassing application security, cloud infrastructure, CI/CD pipelines, and addressing AI/ML-specific vulnerabilities.This is not a SOC position; you won't be confined to an alert queue. Instead, you'll be actively engaged in identifying risks, enhancing controls to mitigate those risks, and working collaboratively with engineering and infrastructure teams to integrate security seamlessly into our development processes. As a dynamic AI company, we tackle security challenges that are often unprecedented—securing model weights, ML pipelines, and training infrastructure alongside more traditional domains.If you thrive on addressing emerging threats, enjoy deeply understanding systems, and aspire to make a meaningful impact at a cutting-edge video AI company, this role is tailored for you.Note: U.S. Citizenship is required due to access to systems governed by U.S. government security regulations.Location Requirements: We are currently considering candidates exclusively based in the Pacific Time Zone (PT).Candidates should be prepared to travel up to 10% annually for team meetings and events.

Join Anthropic as a Lead Security Engineer in our Corporate Security team. In this pivotal role, you will lead the development and implementation of robust security measures to safeguard our corporate environment. You will collaborate with cross-functional teams to identify vulnerabilities and enhance our security posture.Your expertise will drive innovative security solutions and ensure compliance with industry standards, contributing to the overall safety and integrity of our operations.

Join Baseten as a Security Engineer, where you will play a vital role in safeguarding our systems and data. You will be responsible for implementing security measures, conducting audits, and ensuring compliance with industry standards. This position offers the opportunity to work with cutting-edge technology in a collaborative environment.

Join Scale AI as a highly skilled Security Engineer in our Product Security team, where you will play a pivotal role in safeguarding the security and integrity of our products and services. This position involves conducting comprehensive code reviews, implementing security best practices, and shaping our overarching security strategy. Your proficiency in TypeScript, Python, AWS, CI/CD, SAST, DAST, and Terraform orchestration will be vital in detecting and addressing potential security threats. You will have the opportunity to analyze complex issues, identify root causes independently, and articulate the complexities and implications of security vulnerabilities, including their potential for exploitation and impact. Your responsibilities will include:Utilizing extensive product security knowledge to design and maintain software tools that secure every layer of the modern AI/ML software ecosystem.Conducting thorough code reviews to identify and rectify security vulnerabilities.Assessing and improving the security of our product offerings through RFC and service evaluations.Establishing and sustaining CI/CD pipelines with a strong emphasis on security.Executing Static Application Security Testing (SAST) and Dynamic Application Security Testing (DAST) to uncover vulnerabilities in production code.Employing Terraform orchestration to maintain secure and efficient infrastructure management.Advising engineering teams on developing robust, long-term solutions that prioritize security and privacy.Clearly communicating the mechanics and significance of security vulnerabilities, including their exploitability and potential consequences.Contributing to the security strategy and direction of the team, advocating for best practices and ongoing enhancements. Ideal candidates will possess:A proven track record of independently driving multi-month security initiatives, from problem identification to execution, with minimal oversight.Significant experience as a Security Engineer with an emphasis on product security.Proficiency in NodeJS, TypeScript, Python, and/or Kubernetes.A strong grasp of modern JavaScript application design.Practical experience in operating and securing AWS infrastructure at scale.Hands-on experience with SAST and DAST tools and methodologies.Familiarity with Terraform orchestration for managing infrastructure.Capability to analyze complex problems and identify root causes independently, providing actionable insights without managerial input.Exceptional communication skills, enabling clear presentation of technical concepts to diverse audiences.

At Ripple Labs Inc., we are pioneering a future where value is transferred as effortlessly as information is today. Our ambitious vision is already becoming a reality through innovative crypto solutions tailored for financial institutions, businesses, governments, and developers. By enhancing the global financial framework, we aim to foster economic equality and open doors of opportunity for individuals worldwide. Here, you will have the chance to excel in your career, expand your expertise, and collaborate with a supportive team.If you are eager to make a significant impact and unlock exceptional career advancement prospects, we invite you to join us in creating tangible value in the world.THE ROLE:As the Director of Security Engineering, you will lead and manage a proactive and dedicated team of Security Engineers focused on safeguarding Ripple's products, infrastructure, and corporate IT systems. Your strategic vision will be instrumental in shaping our security framework and nurturing a company-wide culture of security awareness. Your leadership will be vital in ensuring the protection of our business and our clients by integrating security practices at every level of our technology stack.KEY RESPONSIBILITIES:Develop and execute a strategic roadmap for the Security Engineering team, emphasizing product security, infrastructure security, and IT security.Lead, mentor, and empower a team of security engineers, fostering an environment that prioritizes technical excellence, continuous learning, and innovation.Act as a subject matter expert in security, providing insights and articulating security risks and principles to senior leadership, engineering teams, and stakeholders.Implement security protocols across the engineering division, ensuring that security considerations are embedded into daily development activities.Work collaboratively with engineering, product, and IT leadership to ensure alignment on security objectives and advocate for security measures on behalf of our customers.

About SentryAt Sentry, we are dedicated to eradicating bad software. Our mission is to empower developers to create better software more efficiently, allowing everyone to enjoy technology once more.With over $217 million in funding and a community of more than 100,000 organizations, including industry leaders like Disney, Microsoft, and Atlassian, we are at the forefront of building performance and error monitoring tools that minimize bug fixing and maximize product development.We embrace a hybrid work model across our global teams, designating Mondays, Tuesdays, and Thursdays as in-office days to foster collaboration. If you are passionate about creating tools that enhance the digital experience, join us in developing the next generation of software monitoring solutions.About The RoleOur security team is committed to safeguarding every aspect of Sentry, from our customer data to our internal code. As a Senior Security Engineer, you will be integral to our mission of enhancing security across our application and Kubernetes platform. Collaborating with engineering teams, you will help strengthen Sentry’s cloud security posture through strategic architecture, threat modeling, and hands-on coding when necessary.Key ResponsibilitiesLead critical initiatives aimed at addressing significant security challenges, from conceptualization to execution.Collaborate on cross-departmental objectives to drive security goals forward.Conduct research and assess new technologies that can bolster our security framework with a focus on scalability.Identify vulnerabilities within our systems and data while developing and implementing robust protective measures.Support cross-functional teams in integrating security solutions that adhere to Secure-by-Design principles.Ideal Candidate AttributesDesire to be a foundational member of an agile, engineering-centric security team.Enjoy collaborating with enthusiastic security, application, platform, and infrastructure engineers eager to innovate.Passionate about advancing security practices to enhance software quality.

About the Role Hex Technologies is seeking a skilled Cloud Security Engineer to enhance our security team. In this pivotal role, you will be responsible for safeguarding our cloud infrastructure and ensuring its resilience. You will lead cloud security initiatives and work closely with infrastructure and engineering teams to protect our cloud-native applications. Key Responsibilities: Design, implement, and oversee security solutions and controls for AWS environments and Kubernetes clusters, ensuring effective isolation and sandboxing for Hex’s RCE-as-a-Service platform. Develop, deploy, and maintain infrastructure-as-code utilizing Terraform, while upholding stringent security standards. Perform comprehensive security assessments, threat modeling, and audits on AWS cloud infrastructure and Kubernetes deployments. Collaborate with development and operations teams to integrate security best practices into CI/CD pipelines. Monitor and respond to cloud security incidents, identify root causes, and propose remediation measures. Provide in-depth expertise on compliance requirements related to cloud security, including SOC 2, ISO 27001, GDPR, HIPAA, and PCI DSS. Mentor fellow engineers and advocate for cloud security initiatives throughout the organization. Qualifications: 5+ years of experience in cloud security engineering, particularly with AWS. Proven expertise in Kubernetes security, including cluster hardening, role-based access control (RBAC), network policies, and container vulnerability management. Expertise in Terraform with hands-on experience. Familiarity with AWS security services such as IAM, GuardDuty, Security Hub, CloudTrail, and WAF. Knowledge of CNAPP solutions like Wiz and SIEM solutions such as Panther. Strong understanding of secure software development lifecycle practices, CI/CD security, and DevSecOps methodologies. Relevant certifications such as AWS Certified Security – Specialty, Certified Kubernetes Security Specialist (CKS), and Terraform Associate certification are highly desirable. Additional security certifications from SANS or OffSec are a plus. Exceptional problem-solving, communication, and leadership skills.

Join Hive as a Cybersecurity Engineer and play a pivotal role in fortifying our security infrastructure. We are seeking a proactive and skilled individual with a strong background in information security. In this role, you will be responsible for safeguarding sensitive company data, managing potential security incidents, and implementing robust security and data governance measures. You will collaborate across various teams to lead security operations, conduct risk assessments, respond to incidents, and maintain security projects. Our ideal candidate is passionate about AI and committed to enhancing our security framework to meet evolving challenges.

We are seeking a highly skilled Senior Security Engineer to join our innovative team at Decagon in San Francisco. In this pivotal role, you will be responsible for safeguarding our digital infrastructure and ensuring the security of our systems against potential threats. You will work closely with cross-functional teams to design and implement security solutions, conduct risk assessments, and develop incident response strategies.As a Senior Security Engineer, you will have the opportunity to leverage your expertise in security protocols, threat detection, and vulnerability management to enhance our security posture. Your contributions will be essential in creating a secure environment for our operations and clients.

About UsAt Sierra, we are pioneering a transformative platform that enhances customer experiences through the power of AI. Our main office is located in San Francisco, with additional offices expanding across Atlanta, New York, London, France, Singapore, and Japan.Our culture is deeply rooted in our core values of Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These principles guide our decisions and define how we collaborate and innovate together.Our co-founders, Bret Taylor and Clay Bavor, bring a wealth of expertise from their previous roles at leading tech companies. Bret has held positions such as co-CEO of Salesforce and CTO of Facebook, while Clay has led significant initiatives at Google, including Google Lens and Project Starline.Your RoleLead Security Initiatives. Take the helm in safeguarding our platform, focusing on application, cloud, network, and AI agent security through secure design assessments and threat modeling.Collaborate Across Teams. Work hand-in-hand with engineering, product management, and governance to weave security seamlessly into the software development lifecycle, clearly communicating risks and prioritizing resolutions.Drive Automation and Tool Integration. Enhance security efficiency by incorporating advanced tools into CI/CD processes, utilizing AI-driven solutions to automate security assessments and compliance checks.Enhance Security Posture. Regularly audit our cloud infrastructure, evaluate IAM configurations, and proactively address emerging security threats, contributing to strategic security initiatives and best practice development.Support Enterprise Clients. Articulate our security protocols to enterprise customers, addressing their concerns regarding data security in highly regulated sectors such as healthcare and finance.

OverviewIn the rapidly evolving landscape of software development, AI has revolutionized the way we build applications, but security has struggled to keep pace. Corridor is at the forefront of transforming product security, empowering developers to effectively secure their AI code.Our team is uniquely positioned at the intersection of AI and cybersecurity, having led security initiatives for some of the largest corporations globally, influenced U.S. cybersecurity policy, and contributed to AI research at Stanford.As we continue to expand, we are looking for a skilled Security Engineer to enhance the security posture of both our clients and our own systems. This highly technical role emphasizes collaboration with clients to implement secure coding practices, fortify Corridor's internal infrastructure, and support our compliance initiatives.This position reports directly to our Chief Product Officer/Chief Security Officer.What You'll DoEnhance Customer Security OutcomesEngage directly with clients to comprehend their codebases and assist them in establishing secure coding guardrails.Elevate Corridor's detection and remediation capabilities by integrating insights from real-world client environments.Collaborate with clients to showcase security value and measurable outcomes.Fortify Corridor's SystemsStrengthen Corridor's software and infrastructure through threat modeling, code reviews, and red teaming methodologies.Identify vulnerabilities and collaborate with engineering teams to ensure prompt remediation.Monitor production and IT systems, investigate anomalies, and respond effectively to incidents.Contribute to the development of security documentation, policies, and incident response protocols.Assist with ComplianceWork alongside the Chief Information Security Officer to meet compliance obligations including SOC 2, ISO 27001, and client security questionnaires.Aid in maintaining and enhancing Corridor's security posture as we scale.