Host Assurance Security Engineer

Join Databricks as a Senior Security Assurance Engineer focused on Special Projects. In this pivotal role, you will lead initiatives to enhance our security framework, ensuring that our innovative solutions adhere to the highest standards of security and compliance.Your expertise will be instrumental in identifying potential vulnerabilities, implementing robust security measures, and collaborating across teams to foster a culture of security awareness. This is an exciting opportunity to work on critical projects that directly impact the safety and integrity of our platform.

Join GiveDirectly as a Senior Manager of Special Projects, where you will lead innovative initiatives that drive impact in the lives of those we serve. You will work closely with cross-functional teams to ensure the successful execution of projects that align with our mission of delivering cash directly to families in need.This is an opportunity for a strategic thinker with a passion for social impact to contribute to meaningful change. Your leadership will guide project teams, facilitate collaboration, and ensure that our efforts are both effective and impactful.

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 Fractional AIFractional AI specializes in creating tailored generative AI software that drives business transformation.In a landscape where every C-suite is striving to connect theoretical AI with real-world applications, we bridge that divide with top-tier engineering talent and bespoke AI solutions. Explore our case studies for further insights.We are a profitable company experiencing rapid growth, dedicated to tackling the most challenging issues in applied AI.About the RoleWe are on the hunt for a dynamic and exceptionally dependable generalist eager to contribute to building a groundbreaking company. You will spearhead special projects and initiate new strategies that will facilitate the scaling of Fractional AI.This is a fast-paced role in a hypergrowth environment, where each day brings new challenges. One week, you might engage in market research for potential acquisitions; the following week, you could be managing strategic partnerships with foundational model companies.This position involves a blend of strategy, execution, and daily problem-solving, with no existing playbook.

About LangChainLangChain is dedicated to making intelligent agents a common part of our daily lives. We provide the essential framework for agent engineering that enables developers to transition from experimental prototypes to production-ready AI agents that organizations can depend on. Having started as widely embraced open-source tools, we have evolved to also deliver a robust platform for the development, evaluation, deployment, and management of agents at scale.Our tools, including LangChain, LangGraph, LangSmith, and Agent Builder, are actively utilized by teams delivering tangible AI products across both startups and large corporations. Millions of developers rely on LangChain to empower AI teams at renowned companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.With $125M raised in our Series B funding round from prominent investors including IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are at a pivotal point of innovation, accelerating growth, and empowering every team member to have a significant impact on our products and collaborative culture. At LangChain, your contributions can truly influence how this technology integrates into the real world.About the RoleAs the hands-on security lead, you will work closely with our core product teams to ensure the security of agent workloads from end to end, encompassing everything from SDK to LangSmith/Graph services and customer integrations. You will be responsible for defining our security roadmap, achieving immediate hardening wins, and elevating the standards for how AI infrastructure is secured in production. We are seeking engineers with expertise in either cloud/infrastructure security or application security (expertise in both is a significant advantage!).Lead product & platform security: Design and implement application/infrastructure security controls across LangSmith, LangGraph, and the LangChain SDK ecosystem (Python/TS/Go).Implement secure-by-default authentication and authorization: Enhance SSO/SAML/OIDC/SCIM, manage token lifecycles, establish service-to-service authentication, and ensure tenant isolation for both cloud and self-hosted customers.Vulnerability management: Oversee scanning, triage, and patching SLAs; coordinate with engineering teams to ensure swift remediation without delaying delivery.Develop secure code, conduct reviews, and create tools: Implement secure design principles, write pull requests, execute penetration tests, and introduce lightweight checks (linters, dependency/supply-chain scanning, SBOM/SLSA provenance) to facilitate security at scale.Enhance hardening & operations: Focus on network segmentation/Zero Trust, Kubernetes posture management, secrets management, key rotation, least-privilege IAM, and egress controls.

Join our dynamic team at idler as a Special Projects Operator, where you will play a crucial role in the execution of innovative projects that drive our company forward. You will collaborate with various departments to ensure project objectives are met efficiently and effectively.

Join Our Team as a Senior Security EngineerAt LiteLLM, the leading AI Gateway trusted by industry giants such as Adobe, Netflix, and NASA, we empower developers with secure and reliable access to LLMs and associated services. We are seeking a talented Senior Security Engineer to establish robust security measures and observability tools as we scale our platform.Your Role:Become a cornerstone of our security team as our inaugural Security Engineer, tackling pivotal security challenges head-on.Key Responsibilities:Perform in-depth security assessments of the LiteLLM proxy codebase to uncover potential supply chain vulnerabilities.Develop and manage automated security scans for our Docker images, PyPI packages, and CI/CD workflows (including dependency scanning and secrets detection).Create and enforce secure-by-default configurations for both cloud and self-hosted environments (API authentication, IAM least privilege, key rotation).Implement and oversee intrusion detection systems and alerts tailored to model and API usage patterns.Lead incident response efforts and post-mortem analyses, including vulnerability assessments and stakeholder communication.Establish a formal CVE triage and disclosure protocol in collaboration with the engineering team.Conduct internal red teaming and adversarial testing to simulate real-world attacks and enhance our defenses.Collaborate with engineering teams to fortify release pipelines (signed builds, provenance checks, reproducible builds).Develop secure coding standards and conduct regular training sessions for developers focused on supply chain and dependency management.Maintain and update threat models as LiteLLM’s products and architecture evolve.

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.

CoreWeave, a public cloud provider specializing in AI infrastructure, supports clients ranging from emerging startups to large enterprises. Since its founding in 2017, CoreWeave has experienced rapid growth and is now listed on Nasdaq (CRWV as of March 2025). More details about the company can be found at www.coreweave.com. Role overview The Senior Project Manager for Data Center Security Initiatives leads the implementation of advanced physical security systems throughout CoreWeave’s data centers. Reporting to the Senior Manager of Data Center Risk and Assurance, this role manages large-scale projects, including the deployment of Wireless Intrusion Detection Systems (WIDS) and other critical security technologies. The position works with multiple teams to ensure new security systems meet both industry standards and client needs. Main responsibilities Project management: Direct all stages of deploying new physical security solutions, such as WIDS, at several data center locations. Collaboration: Coordinate activities across the project lifecycle for security technology rollouts and operational launches, ensuring alignment with company objectives. Cross-functional teamwork This role partners with groups including Security Design and Commissioning, Networking, Security Engineering, and the Global Security Operations Center to deliver successful project outcomes. Locations CoreWeave offices are in Livingston, NJ; New York, NY; Sunnyvale, CA; San Francisco, CA; Bellevue, WA; Dallas, TX; and Richmond, VA.

Oleria Security seeks a Senior Implementation Engineer based in San Francisco, CA. This role focuses on integrating and deploying Oleria’s security solutions for clients, ensuring each rollout is reliable and tailored to customer needs. Role overview The Senior Implementation Engineer leads technical deployments of security products. Success in this position means customers experience smooth transitions and ongoing support as their solutions go live. What you will do Take ownership of technical implementation for security products with client organizations Collaborate with engineering, product, and customer success teams to coordinate deployments Diagnose and resolve integration or deployment issues as they arise Contribute to project outcomes and maintain strong customer satisfaction throughout each engagement

Join Airwallex as a Senior Corporate Security EngineerAt Airwallex, we are redefining global financial solutions. As a Senior Corporate Security Engineer, you will play a pivotal role in safeguarding our enterprise systems and employee data from various security threats, including malware and phishing attacks. This is a highly technical position focused on detecting, investigating, and preventing security incidents within a dynamic corporate environment.You will engage in digital forensics, incident response, and the development and deployment of tools designed to protect our diverse range of IT platforms. Collaborate with exceptional teammates to tackle significant challenges while advancing your career as we pioneer the future of global banking.

About Scribd:At Scribd Inc., we ignite curiosity and foster a vibrant ecosystem of stories and knowledge. Our mission is to democratize access to ideas and empower collective wisdom through our innovative platforms: Everand, Scribd, Slideshare, and Fable. Join us as we create an inclusive environment where creativity and collaboration thrive.We believe in cultivating a culture where authenticity and boldness flourish—encouraging open discussions and commitment to our goals while embracing the unexpected. Every team member is empowered to prioritize customer needs and take meaningful actions.Our flexible work policy, Scribd Flex, enhances individual work styles while fostering community connections. We encourage team members to collaborate intentionally through in-person moments, regardless of their location.We're looking for team members who embody "GRIT"—a blend of passion and perseverance towards long-term objectives. We seek individuals who can set and achieve Goals, deliver Results, offer Innovative solutions, and positively impact the Team's culture through collaboration.Role OverviewAs a Senior Security Engineer on our Infrastructure Security team, you'll play a crucial role in safeguarding our applications, platforms, and users. As we scale, we're enhancing our Detection & Response capabilities, transitioning towards a time-based security model that prioritizes speed, signal quality, and resilience as core design principles.

Why Join Brex?Brex is an innovative AI-driven spend management platform designed to empower businesses to manage expenses with confidence. We provide integrated corporate cards, banking solutions, and global payment options, alongside intuitive software for travel and expense management. From startups to large enterprises, clients like DoorDash, Flexport, and Compass leverage Brex to optimize spending, lower costs, and enhance efficiency worldwide.Joining Brex means embracing challenges, pushing boundaries, and collaborating with industry leaders. We are dedicated to fostering a diverse and inclusive culture where your potential is only limited by your aspirations. We equip you with the necessary tools, resources, and support to advance your career.Engineering at BrexOur engineering culture focuses on building scalable systems with intention and speed. Our teams, spanning Software, Data, Security, and IT, work with high autonomy and deep collaboration. We confront challenging technical problems, take ownership of outcomes, and strive for excellence across all levels—from architecture to deployment. Here, engineering is regarded as a craft, and builders evolve into leaders.Your RoleAs a Senior Application Security Engineer, you will be pivotal in identifying and addressing security vulnerabilities within the Brex platform. Your responsibilities will include conducting code and design reviews, penetration testing, and managing vulnerabilities. You will also develop and maintain tools for static and dynamic testing of the platform, ensuring secure developer workflows. You will collaborate closely with teams across Security Operations, GRC, Product Security, Front End Platform, and IT Infrastructure.We seek individuals with a robust background in penetration testing and a proven track record of uncovering vulnerabilities in complex systems. Your ability to craft exploits that highlight business risk will be essential. This role demands a collaborative spirit, as you will engage with various engineering teams throughout Brex. Your enthusiasm for diverse perspectives and needs is crucial as we build world-class financial services with top-tier security.Brex is at the forefront of AI-driven financial services for dynamic companies such as Coinbase, Robinhood, and Anthropic. As we integrate AI across our product suite, this role will have the chance to significantly influence our approach.

About Us:At Notion, we empower individuals and teams to create beautiful tools tailored for their unique workflows. In a digital landscape filled with countless applications, Notion stands out by providing a unified platform where documents, notes, projects, calendars, and emails converge, all enhanced by AI capabilities to streamline tasks and deliver insights. Trusted by millions, including notable organizations like Toyota, Figma, and OpenAI, Notion is chosen for its adaptability, helping users save both time and resources.Collaboration is at the heart of our culture. We encourage all team members to work from our offices on Mondays, Tuesdays, and Thursdays, referred to as our Anchor Days. Depending on team requirements, some roles may necessitate additional in-office days.About The Role:We are seeking a dynamic and motivated individual to join our Corporate Finance team as a trusted advisor. Your role will involve providing insightful analyses and strategic thought partnership to inform key C-level decisions. You will assist in enhancing executive comprehension of our primary financial metrics and trends, improve forecasting accuracy, and lead high-profile strategic initiatives for the CFO and other pivotal decision-makers. As a small team, your contributions will have an immediate and significant impact.What You'll Achieve:Collaborate with Finance, Accounting, and cross-functional teams to develop and present comprehensive three-statement forecasts. Lead crucial monthly and quarterly management reporting, including Budget vs. Actual analyses, dashboards, and materials for Board meetings that inform business decisions.Enhance forecast accuracy by refining key assumptions regarding Notion’s Balance Sheet (BS) and Free Cash Flow (FCF).Manage equity burn rate and shareholder pool tracking, ensuring alignment with our long-term capital strategy.Assist in our monthly close and forecasting processes—analyzing financial outcomes, identifying key trends, and communicating risks and opportunities to facilitate impactful business decisions.Establish a streamlined process for collecting capital expenditures, taxes, and critical inputs from the team. Lead data-driven modeling and foster enhanced collaboration across functions, particularly in high-impact areas.Work with Consolidations and Business teams to create a long-term plan and refine our forecasting processes to elevate forecast accuracy.Address various evolving priorities for the team, including ad hoc analyses.

Join the Center for AI Safety (CAIS), a premier research and advocacy organization dedicated to addressing the critical challenges posed by artificial intelligence. Our mission is to mitigate societal-scale risks associated with AI, leveraging technical research, field-building initiatives, and policy engagement. Together with our sister organization, the Center for AI Safety Action Fund, we are at the forefront of AI safety.As the Special Projects Manager, you will collaborate closely with the Executive Director and Managing Director to identify, assess, and initiate innovative projects within CAIS's early-stage pipeline. You will manage the entire project lifecycle—from exploring opportunities and drafting concise project briefs to creating timelines and budgets, while ensuring timely delivery through our project management system. This dynamic role involves coordinating with researchers, vendors, and other stakeholders, managing risks, and providing clear documentation and reporting to leadership. You will be instrumental in transforming ambitious AI safety concepts into tangible outcomes with agility, precision, and an unwavering focus on our mission.AI safety communication is experiencing significant momentum, with our videos, articles, and social media posts reaching millions of viewers. CAIS is poised to capitalize on this wave of public interest by launching several impactful projects on an accelerated timeline.

Astranis is on the forefront of satellite technology, developing advanced satellites designed for high orbits that expand humanity’s reach into the solar system. Our innovative satellites deliver dedicated, secure communication networks to a diverse range of clients, including large enterprises, sovereign governments, and the US military. With five satellites currently in orbit and numerous launches planned, we are proudly managing a backlog exceeding $1 billion in commercial contracts.Astranis is the go-to satellite communications partner for clients with rigorous demands for uptime, data security, and network customization. Having raised more than $750 million from some of the most recognized investors, including Andreessen Horowitz, Blackrock, and Fidelity, we boast a talented team of 450 engineers and entrepreneurs. Our operations are based in a state-of-the-art 153,000 sq. ft. facility in Northern California, USA.Senior Product Security EngineerAs a Senior Product Security Engineer at Astranis, you will leverage your extensive software engineering expertise with a strong focus on security. You will be tasked with designing and building secure systems, specializing in critical areas such as cryptography, Public Key Infrastructure (PKI), and zero trust architectures. Your role will encompass evaluating processes, operating systems, and applications from a security-first engineering perspective. While your primary responsibility will be to develop secure software, you will also play a key role in identifying vulnerabilities, conducting risk analyses, and leading thorough security reviews.

Join Us at Chai DiscoveryAt Chai Discovery, we are pioneering applied research in artificial intelligence to revolutionize biology. Our advanced AI models are engineered to create innovative molecules for groundbreaking medicines. Our software platform is increasingly being utilized by scientists across various industries to develop drugs with unparalleled precision. Our ambition is to craft a comprehensive design suite for biology, impacting life sciences, agriculture, materials science, and beyond.Founded by leaders at the forefront of the field, we have secured $230 million in funding from prestigious investors including Thrive, General Catalyst, OpenAI, and Dimension. Collaborating with global life sciences giants like Eli Lilly, we are reshaping the landscape of our industry.Renowned for our exceptional talent, rigorous research, and rapid execution, we invite you to be a part of our dynamic team.Are You Ready to Make an Impact?We are in search of a remarkable individual to lead our talent acquisition efforts. This role requires someone who is endlessly curious, results-driven, empathetic, self-aware, and attuned to market dynamics. Your responsibilities will include:#1 Communicate Effectively.You will articulate our story and cultivate authentic relationships. Engaging in insightful discussions with various stakeholders will be second nature to you. You will immerse yourself in our mission and domain, representing our values and objectives with sincerity. Building trust through genuine interactions is crucial.#2 Innovate and Act Differently.We believe in challenging the status quo, and you do too. Your track record demonstrates a knack for thinking outside the box and executing unconventional strategies to achieve extraordinary results. You transform insights into actions, prioritize iteration over perfection, and balance urgency with creativity.#3 Create Something Remarkable.You will play a pivotal role in shaping our organization and ensuring the right talent fills each position. Your ability to identify polymaths, extraordinary talent, and exceptional visionaries will be invaluable. You are eager to deepen your expertise in every facet of our work and culture.What We OfferAn opportunity to operate at the cutting edge of AI, alongside world-class professionals, on meaningful projects. We champion a culture of speed and accountability while providing competitive compensation.

About UsAt Adaption, we believe in redefining the boundaries of artificial intelligence. Our mission is to create intelligent systems that not only understand but also adapt to the ever-changing world around us. We envision a future where AI is not just powerful but also flexible and inclusive, expanding accessibility and fostering innovation for all. Our commitment to excellence drives us to assemble a team of exceptional talents who are eager to push the limits of what’s possible in real-time AI adaptation.The RoleJoin us as a Special Projects Lead, where you will play a critical role in transforming ideas into impactful realities. As a versatile leader, you excel in ambiguous environments, taking on undefined challenges and delivering innovative solutions. You will collaborate closely with our founders, steering strategic initiatives and shaping the operational backbone of our company as we scale toward our visionary goals.ResponsibilitiesLead Special Projects: Take ownership of high-impact initiatives from conception to execution, tackling challenges that transcend traditional job boundaries.Scale Operations Globally: Develop and implement the systems and frameworks necessary to unify our distributed teams as we evolve from a startup to a global organization.Drive Strategic Initiatives: Work alongside leadership to convert strategic goals into actionable tasks, ensuring cross-functional collaboration and accountability.Manage Day-to-Day Execution: Oversee business operations, including vendor management, compliance, and administrative functions, proactively identifying and addressing potential obstacles.Innovate Operational Solutions: Identify creative approaches and shortcuts to streamline processes, enhance team communication, and drive efficiency.Qualifications3-7 years of experience in operations, strategy, or special projects, preferably within a high-growth startup or technology firm.Demonstrated ability to thrive in dynamic, fast-paced environments.Exceptional problem-solving skills with a knack for innovative thinking.Proficient in project management and operational excellence.

About UsTriumph Arcade revolutionizes mobile gaming by allowing players to wager and win real money, engage in mass multiplayer games, and compete in social tournaments. Our app has become the leading choice in its App Store category, showcasing remarkable month-over-month growth in both revenue and active player engagement. As we continue to innovate and expand, we're excited to introduce new products, including Rips, our collectibles app, which has already gained significant traction.Supported by esteemed venture capitalists such as Goodwater Capital, General Catalyst, and DraftKings Drive Fund, Triumph is on a hyper-growth trajectory.The RoleAs our Founding Security Engineer, you will play a pivotal role in shaping and implementing the security framework that safeguards Triumph’s players, funds, and data across all platforms. Your expertise will ensure Triumph's resilience against technical failures, credential compromises, or security incidents, thereby protecting our assets and maintaining operational viability.You will be the primary authority on security for our backend systems, mobile applications, infrastructure, and internal tools, establishing the standards for security practices at Triumph. This position reports directly to our CTO and Co-Founder, Jared Geller.What You’ll DoIdentity, Access & Privilege Escalation - Manage all service accounts, IAM, and privilege elevation systems within the production infrastructure.Blast Radius & Recovery Guarantees - Oversee disaster recovery design and execution, ensuring that no infrastructure failure or security incident can lead to irreparable loss of critical data, funds, or system integrity. Set and enforce recovery point (RPO) and recovery time (RTO) objectives for all crucial data systems.Audibility & Forensic Readiness - Ensure all security actions in production are auditable, attributable, and easily reconstructable.Compliance - Lead the technical implementation of data protection controls necessary for compliance with GDPR and similar regulations.