Infrastructure Security Engineer at ScaleAI | San Francisco, CA

Join Scale AI as a talented Infrastructure Security Engineer, where you'll play a pivotal role in safeguarding the integrity and security of our platform. This position focuses on securing expansive cloud environments, managing and fortifying various compute clusters, and reviewing infrastructure as code. Your proficiency in cloud security, infrastructure au…

At Crusoe, we are on a mission to accelerate the accessibility of energy and intelligence for everyone. Join us in creating the infrastructure that enables individuals to innovate boldly with AI, all while maintaining a commitment to scale, speed, and sustainability.Become a key player in the AI revolution through sustainable technology at Crusoe. Here, you will spearhead groundbreaking innovations, make a significant impact, and collaborate with a team dedicated to shaping the future of responsible cloud infrastructure.Role Overview:Crusoe AI is seeking a Senior Product Security Engineer to play a pivotal role in protecting our cloud products and applications, particularly those centered on AI/ML, throughout their entire lifecycle.In this position, you will lead the establishment and enforcement of security best practices within the development lifecycle. Your responsibilities will include performing comprehensive threat modeling, executing security assessments, and working closely with product and engineering teams to strengthen our security posture, ensuring the robustness of our innovative solutions and the protection of customer data.Your Daily Responsibilities:Collaborate with product and engineering teams to embed security best practices into the software development lifecycle.Conduct threat modeling, security architecture evaluations, design assessments, and code reviews for new product initiatives. Perform penetration testing, vulnerability assessments, and security evaluations of product features and systems.Create and implement security automation tools to monitor and test code and software for vulnerabilities.Establish and maintain secure coding protocols and procedures tailored for cloud and Kubernetes environments.Proactively detect and mitigate risks in user-facing processes and critical infrastructure.Lead security education, training, and mentorship initiatives to cultivate a culture of security awareness across all teams.Identify and manage security vulnerabilities, ensuring they are documented, prioritized, and addressed promptly.Qualifications for Success:You possess 4-6+ years of experience in Information Security, with a specialization in application or product security.You have proficiency in cloud platforms such as AWS, GCP, or Azure, and expertise in Kubernetes orchestration as well as automation scripting (e.g., Python).

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.

Your Role at Lila SciencesThe Senior Director of Cloud Security and Compliance will spearhead the comprehensive security, governance, risk management, and regulatory compliance for our cloud environments and research workflows. In this pivotal role, you will architect and oversee cloud security frameworks, data protection strategies, and compliance initiatives across both multi-cloud and on-premises infrastructures. You will collaborate closely with teams in Engineering, Data Science, IT, Legal, and Compliance to establish secure operational patterns, facilitate swift yet secure experimentation, and uphold a resilient governance program that provides verifiable evidence for regulators and clients.Your ContributionsCloud Security Architecture & GovernanceFormulate and uphold a comprehensive cloud security strategy, reference architectures, and security standards for public cloud environments (AWS, Azure, GCP) and hybrid solutions.Implement secure-by-default design patterns for cloud resources, data flows, and analytics, while intentionally setting CI/CD security patterns aside from your primary focus.Establish and manage IAM principles of least privilege, network segmentation, private endpoints, key/secret management, and centralized logging for AWS, Kubernetes, and cloud-native services.Governance, Compliance & Risk ManagementCreate, execute, and continuously enhance policies, standards, and procedures in line with key frameworks (e.g., NIST CSF, NIST 800-53, FedRamp, ISO 27001, SOC 2, GDPR/CCPA).Oversee the data protection program, including data classification, minimization, retention, and lifecycle management; supervise relevant DLP strategies.Conduct third-party risk assessments, manage vendor security inquiries, and oversee security clauses in contracts, ensuring audit evidence is well-maintained.Security Controls & MonitoringDefine and supervise security controls across cloud resources, focusing on identity and access management, encryption, key management, log collection, and telemetry.Work in tandem with Security Operations to implement monitoring systems, alerting protocols, incident response coordination, and audit evidence collection.Compliance & Audit ReadinessPrepare for internal and external audits by mapping controls to frameworks and translating them into actionable engineering artifacts and evidence.Ensure ongoing compliance with SOC 2, ISO 27001, and other regulatory mandates, collaborating with Legal and Privacy on data protection controls.Data and Machine Learning SecurityEnhance security protocols for data and machine learning/AI processes, focusing on privacy protection and secure data handling.

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 GridwareGridware is an innovative technology firm located in San Francisco, committed to enhancing the resilience and safety of the electrical grid. We have pioneered a revolutionary approach to grid management known as Active Grid Response (AGR), which focuses on monitoring the electrical, physical, and environmental variables influencing grid reliability and safety. Our advanced AGR platform integrates high-precision sensors to identify potential issues at an early stage, facilitating proactive maintenance and fault resolution. This holistic strategy aims to enhance safety, minimize outages, and optimize grid performance. We are proud to be supported by prominent climate-tech and Silicon Valley investors. For more details, please visit www.Gridware.io.Role OverviewWe are on the lookout for a skilled Security Operations Engineer to bolster and scale the security measures within our cloud-centric environment. In this pivotal role, you will enhance our detection and response capabilities, fortify identity and access controls, and refine the systems and processes that ensure our infrastructure's resilience.Your collaboration with engineering, IT, and infrastructure teams will be crucial in embedding security best practices throughout our development processes. This position suits a proactive security expert who thrives in dynamic settings and is passionate about enhancing visibility, automation, and operational readiness.

Join DigitalOcean and take your career to the next level in a vibrant environment filled with innovative thinkers dedicated to building the most intuitive scalable cloud platform. If you're a visionary with a passion for tackling ambitious challenges and thrive in a fast-paced atmosphere, this is the perfect opportunity for you. We believe in achieving success together while fostering a culture of learning, enjoyment, and making a significant impact for creators around the globe.We are on the lookout for a highly skilled and passionate Senior Software Engineer to be a key player in our Security Products team. In this crucial position, you will lead the design, development, and maintenance of cutting-edge security products and systems that safeguard DigitalOcean's platform and our customers' information. If you are energized by solving intricate security issues on a large scale, we want to hear from you!

About Brain Co.At Brain Co., we are dedicated to developing cutting-edge AI systems that enhance critical workflows for some of the globe's most vital institutions. Our platform functions within high-stakes, highly regulated environments where security is not merely an add-on — it is a fundamental requirement.As a Security Engineer at Brain Co., you will be responsible for designing and building the security architecture that safeguards AI systems deployed within government entities, energy providers, and healthcare organizations. Your work will span cloud infrastructure, application layers, and compliance-driven environments, ensuring our platform remains secure by default, auditable, and resilient at scale.This role is pivotal within our Platform organization. You will collaborate closely with teams in Infrastructure, AI/ML, and Product Engineering to integrate security into our system design, deployment, and operational processes — rather than applying it retroactively.

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.

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...

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 DigitalOcean and embark on an exciting journey with a team of top-tier professionals dedicated to creating the most user-friendly, scalable cloud infrastructure. If you thrive in a dynamic and fast-paced environment, possess a growth mindset, and are driven by innovation, you will feel right at home. We believe in achieving success together while fostering an atmosphere of learning, enjoyment, and significant contributions to the global community of dreamers and builders.We are in search of a Staff Security Software Engineer who is driven by a passion for identifying and preventing abuse in cloud computing.As a Staff Security Software Engineer at DigitalOcean, you will collaborate with a vibrant team committed to transforming cloud computing and artificial intelligence. Reporting to the Senior Manager of Security Engineering, you will leverage your expertise in developing and maintaining software systems within a complex, large-scale environment. Your responsibilities will include analyzing results, communicating insights to stakeholders, and swiftly crafting solutions aligned with our business objectives. Our primary focus is to empower DigitalOcean to scale securely by designing systems that detect and mitigate abuse on our platform. We place a high value on collaboration and professional growth, working closely with other teams in the Security organization to deliver top-notch solutions and enhance operational efficiency.Our customers rely on us to safeguard their data and operations, a responsibility we take seriously. Security at DigitalOcean means tackling intricate challenges at scale that have real implications for our clients, our products, and the broader internet ecosystem.

About Us:At Ambience Healthcare, we are more than just a technology company; we are pioneers in creating AI-driven solutions that bring the human touch back to healthcare. Our innovative platform is designed to reduce administrative burdens, allowing healthcare providers to concentrate on what truly matters: delivering exceptional patient care.We specialize in real-time, coding-aware documentation and clinical workflow support across a variety of healthcare settings, including ambulatory, emergency, and inpatient environments, working with top health systems across North America.Our team embodies a culture of extreme ownership and collaboration, striving to develop the best solutions for our partners and tackling vital challenges in the healthcare industry. We prioritize transparency, positivity, and deep thinking, holding ourselves to high standards because we recognize the significance of the problems we address.Ambience has been awarded #1 for Improving the Clinician Experience in the KLAS Research Emerging Solutions Top 20 Report, recognized by Fast Company as a leading tech innovator, named one of the best AI companies in healthcare by Inc., and selected as a LinkedIn Top Startup for both 2024 and 2025. Our growth is backed by eminent investors such as Oak HC/FT, Andreessen Horowitz (a16z), OpenAI Startup Fund, and Kleiner Perkins — and we are just beginning our journey.The Role:As a Staff Security Engineer, you will play a crucial role in safeguarding our platform within some of the most security-sensitive health systems in the nation. Security must be ingrained in our product from the ground up, not merely an afterthought.In this position, you will oversee the systems that shield our platform at scale, focusing on application security, cloud security, detection and response, and foundational security primitives that other teams rely on. Your responsibilities will include designing security frameworks that make secure choices the default, fortifying our infrastructure against potential threats, and collaborating with engineering teams to minimize risks effectively.This is a hands-on role; you will engage in coding, system design, and lead comprehensive security initiatives that foster enterprise trust and facilitate customer growth.What You’ll Own:Application & Platform Security — Develop and implement secure-by-default patterns across our backend and infrastructure, identifying and rectifying vulnerabilities in application logic, APIs, and data flows.Cloud & Infrastructure Security — Manage the security posture of our cloud environment, focusing on IAM, network boundaries, secrets management, and secure service-to-service communication.Detection & Incident Response — Construct and maintain detection pipelines, alerts, and runbooks, spearheading investigations to ensure swift and effective incident response.

Embark on a transformative career journey with DigitalOcean, where you will collaborate with a vibrant community of exceptional talent dedicated to creating the simplest scalable cloud solutions. If you possess a growth mindset, a penchant for bold thinking, and thrive in the dynamic environment of an industry pioneer, you will find your niche here. We emphasize team success—fostering learning, enjoyment, and making a meaningful impact for innovators and creators worldwide.Join Us as a Senior Software Engineer, Driven by Passion for AI Innovation in Startups!We are in search of a highly skilled and enthusiastic Senior Software Engineer to become an integral part of our Security Products team. In this crucial position, you will play a key role in architecting, developing, and sustaining robust security solutions that safeguard DigitalOcean's platform and our customers' data. This is a thrilling opportunity for an individual who excels in fast-paced settings and is passionate about addressing complex security challenges on a large scale.

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.

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 the RoleJoin our dynamic Product Security team as a Product Security Manager, where you will oversee a dedicated group focused on ensuring the security of our cloud, data, and AI systems. Your mission will be to safeguard our cloud infrastructure, protect sensitive information, and facilitate the secure use of AI technologies across our products and internal operations.You will collaborate closely with engineering, product, and data teams to ensure that cutting-edge systems, including AI-integrated features, are designed and maintained with security as a top priority. As AI technology becomes more prevalent, you will help shape strategies to utilize AI securely while mitigating risks associated with data exposure, misuse, and insecure integrations.This role requires flexibility as you and your team will navigate various security domains according to business needs within a POD model.The starting salary for this position ranges from $152,000 to $210,000, depending on experience and location. Full-time employees also enjoy a competitive bonus structure, equity options, and comprehensive benefits.

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