Senior Security Engineer - Detection & Response

The Security Incident Response Team (SIRT) is integral to safeguarding Datadog from cybersecurity threats. In this pivotal role, you will collaborate with diverse teams to identify, triage, and swiftly respond to an array of security threats, ensuring that incidents are contained promptly. Your contributions will also extend to enhancing our tools and systems, fostering cross-functional learning from incidents to bolster our overall security posture.At Datadog, we value a vibrant office culture that nurtures relationships, collaboration, and creativity. We support a hybrid workplace model, allowing our team members to achieve a harmonious work-life balance.

Role overview Peloton Interactive, Inc. is hiring a Security Engineer with a focus on Incident Response. This hybrid position is based in New York City, NY, and plays a key role in supporting Peloton’s Security Program. The schedule includes part-time telecommuting. Key responsibilities Research and analyze intelligence data from a variety of sources to support threat-hunting activities. Monitor vulnerabilities, track threat actors, and stay informed about indicators of compromise (IOCs). Identify actionable intelligence and highlight emerging threats relevant to Peloton’s environment. Provide insights into anomalies and possible malicious activities across the enterprise. Collaborate with Security Engineering and Security Operations Center teams to establish baselines for user behaviors and events. Develop new detection methods and response workflows to strengthen incident response capabilities. Triage security incidents and assist with investigations alongside internal teams. Recommend and implement countermeasures based on analysis findings. Create and maintain playbooks for security incidents. Prepare analytical reports for management and senior leadership. Work location This position is based at Peloton Interactive’s New York, NY offices. Part-time remote work is available as part of a hybrid schedule.

Join our team as an Incident Response Engineer, where you will play a critical role in enhancing our cybersecurity infrastructure and safeguarding our digital assets. In this dynamic position, you will be responsible for identifying, analyzing, and responding to security incidents while ensuring our systems remain resilient against potential threats.As an essential member of our security team, you will collaborate closely with both technical and non-technical stakeholders to develop effective incident response strategies, conduct post-incident reviews, and implement robust security measures.

Join Human as a strategic security leader, where you will spearhead our global incident response and investigative efforts. In this pivotal role, you will ensure our organization is fully equipped to prepare for, detect, and respond to security incidents affecting HUMAN, our service ventures, partners, and customers. Collaborating closely with engineering, infrastructure, legal, and business teams, you will enhance our incident handling and continuously improve our detection and response capabilities. As part of a dynamic team, you will also engage with adjacent security domains such as Governance, Risk & Compliance (GRC), product security, and corporate security as needed. This position is open to candidates on the USA East Coast or in the UK.Key ResponsibilitiesOversee Global Incident ResponseLead the incident response process from start to finish, providing both strategic direction and hands-on support during critical incidents.Manage the entire incident lifecycle – preparation, detection, triage, containment, eradication, recovery, and post-incident analysis – ensuring clear roles and communication plans are in place.Act as the Incident Response Commander (IRC) for major incidents, guiding the Cyber Security Incident Response Team (CSIRT) through technical investigations and remediation efforts.Develop and conduct regular tabletop exercises and simulations alongside Security, IT, Engineering, Legal, People, and Customer Operations teams to validate our readiness and drive enhancements.Enhance and Automate Security OperationsDesign, implement, and refine detection strategies across our technology landscape (including endpoint, network, cloud, SaaS, and identity) while actively pursuing proactive threat hunting initiatives.Analyze current and developing threats, transforming threat intelligence into actionable detection use cases, playbooks, and risk narratives for leadership consideration.Continuously enhance automation and orchestration, evolving detection, enrichment, and response workflows using scripting and AI-driven techniques to minimize detection and containment times.Enable Security, IT, and Engineering teams by providing reusable workflows, integrations, and comprehensive documentation instead of isolated scripts.Manage relationships with Managed Detection and Response (MDR), Security Operations Center (SOC), and other security vendors, ensuring playbooks and runbooks align with HUMAN’s threat landscape.Collaborate with engineering and cloud platform teams to strengthen security monitoring practices.

The Trade Desk is revolutionizing how global brands and their agencies engage with audiences worldwide. Our media buying platform enhances the ad experience for consumers, establishing new benchmarks for global reach, accuracy, and transparency. We take immense pride in our company culture, valuing the diverse experiences and viewpoints each individual contributes to The Trade Desk. We are dedicated to creating inclusive environments where everyone can authentically express themselves at work. If you are a talented, driven, and innovative professional eager to join a dynamic, globally-connected team, we would love to hear from you! WHAT WE DO: The SPIDER (Security Posture, Incident Detection Engineering & Response) team at The Trade Desk is committed to safeguarding the people, processes, and technologies that drive the open internet. We are in search of a seasoned and adaptable Security Operations Engineer to join our Cybersecurity Department, reporting within the Cybersecurity Incident Response Team, actively managing cybersecurity incidents across the enterprise.

Join xAI as a Senior Security Engineer / Analyst to lead our security threat management initiatives. In this pivotal role, you will oversee the identification and management of potential security incidents, collaborating closely with partner teams on known or suspected threats. Your expertise will enhance our threat intelligence, threat hunting, incident response, and intrusion detection efforts, ensuring we adhere to and advance industry best practices.

Join our dynamic Global Safety and Security team at DoorDash, where we prioritize the protection of our people, assets, and brand. As an integral part of our organization, you will play a vital role in managing safety and security risks using innovative technology and a people-first approach. We are committed to being proactive, offering support whenever and wherever needed.About the RoleAs the Critical Incident Response Team (CIRT) Agent, you will be at the forefront of DoorDash's emergency response initiatives. Your responsibilities will include real-time monitoring, triage, and response to incidents affecting our global workforce and operations. You will analyze alerts, coordinate response efforts, and escalate matters according to our Global Safety & Security protocols.This position is critical in ensuring swift, informed, and coordinated actions during emergencies such as natural disasters or workplace incidents. Collaborating closely with regional and global partners, you will help safeguard our employees and ensure seamless operations around the clock.Key ResponsibilitiesSecurity Operations & MonitoringMonitor and evaluate alerts from global intelligence, safety, and security systems to identify potential threats.Conduct patrols to assess behavioral escalations or concerns.Perform routine checks of lobbies and facilities to ensure safety and compliance.Inspect doors, cameras, and access points regularly.Access Control & Visitor ManagementOversee employee and guest badging processes, including badge printing and access level assignments, with experience in systems such as Genetec or Lenel S2 being a plus.Incident Response & SafetyTriage incidents, assessing severity and escalation needs per CIRT procedures.Serve as the first point of contact for incident management.

The Seasonal Incident Response and Threat Intelligence Analyst plays a critical role in safeguarding our organization against cybersecurity threats, fraud, and digital risks. This position is designed to identify, investigate, and respond to incidents that could affect Major League Baseball and its affiliates. By combining incident response, threat intelligence, digital risk protection, and fraud analysis, you will proactively detect risks, disrupt malicious activities, and enhance our defenses through actionable intelligence and thorough investigations.Key Responsibilities:Assist in security and fraud incident response efforts, coordinating with the virtual Security Operations Center (vSOC) and internal teams for incident identification, containment, remediation, and analysis.Enhance digital risk protection and threat intelligence initiatives, providing timely and actionable insights to support operational responses and threat modeling.Conduct sensitive digital and fraud investigations, producing clear and defensible investigative reports.Monitor and assess the cyber threat landscape, utilizing OSINT, deep/dark web sources, and industry tools to identify threats, vulnerabilities, and adversary tactics.Analyze system logs and user behavior to detect anomalies and high-risk patterns, developing strategies for mitigation and prevention.

Role overview The City of New York is hiring an Incident Responder to help safeguard municipal digital systems. This position centers on identifying security incidents, investigating potential threats, and coordinating remediation efforts to protect city technology infrastructure. What you will do Detect and respond to cybersecurity incidents affecting city systems. Investigate incidents to determine their causes and assess their impacts. Create and carry out remediation plans to address identified vulnerabilities. Collaborate with departments across New York City to improve cybersecurity practices. Assist in meeting regulatory and security standards compliance requirements. Work location This role is based in New York City.

Join Our Team at incident.ioAt incident.io, we pride ourselves on being at the forefront of incident response solutions powered by AI. Our platform is designed to streamline incident response efforts, substantially reducing downtime and enhancing operational reliability for teams worldwide. By integrating on-call functions, incident management, AI-driven Site Reliability Engineering (SRE), and status updates into one cohesive system, we equip teams with the tools they need to respond swiftly and keep stakeholders informed.Since our inception in 2021, we have partnered with over 1,500 organizations, including industry giants like Netflix, Airbnb, and Block, managing more than 500,000 incidents. Each month, countless responders from Engineering, Product, and Support leverage our platform to restore services efficiently and maintain focus on what truly matters.We are a rapidly growing and ambitious team committed to customer satisfaction, product excellence, and creating magical experiences. Our fundraising success, with $100M from notable investors such as Index Ventures, Insight Partners, and Point Nine, alongside esteemed industry founders and executives, underscores our potential and ambition.Your RoleAs a Senior Solutions Engineer, you will serve as a vital link between our innovative product offerings and the distinct needs of our clients. Your technical expertise and profound understanding of the incident.io platform will enable you to work collaboratively with Account Executives to showcase the capabilities of our solution.This dynamic role involves translating intricate technical concepts into clear business value, guiding prospective clients through comprehensive product assessments, and crafting tailored solutions. Whether you are conducting proof of concepts, addressing complex integration inquiries, or providing essential market feedback to refine our product strategy, you will play a crucial role in propelling complex deals and ensuring our customers' success from the very outset.

CLEAR builds secure identity technology for both digital and physical spaces. With more than 38 million members and a growing global partner network, CLEAR’s platform helps people move through airports, stadiums, workplaces, and daily routines with greater safety and ease. Role Overview The Senior Security Engineer on the Infrastructure Security Engineering (ISE) team protects CLEAR’s core platforms. This position focuses on cloud security, identity management, and endpoint controls. The work centers on AWS and Kubernetes environments, using infrastructure-as-code to scale and automate security practices. What You Will Do Strengthen security across AWS and Kubernetes infrastructure Develop and implement security controls using infrastructure-as-code Work closely with Engineering, CorpIT, and Security teams to make security a default part of CLEAR’s systems Location This role is based in New York, New York, United States.

About the Role Sigma Computing is hiring a Senior Security Engineer II focused on Threat Detection and Response for our Security Engineering team in New York City. This position acts as the technical subject matter expert for threat intelligence, detection, and response. The role partners closely with Security, Platform, Product, and Engineering teams to reduce risk and strengthen our defenses at scale. Responsibilities include translating Cyber Threat Intelligence (CTI) into practical security strategies and reinforcing our architecture to guard against modern attack techniques before they can impact our systems. Beyond platform management, this engineer will write production-grade code, design scalable detection systems, automate security responses, and build proactive controls. A strong understanding of cloud, identity, application, and data attack vectors is essential. What You’ll Do Adversary Response Planning: Develop and maintain a comprehensive adversary response strategy that connects organizational risks to specific threat actor tactics, techniques, and procedures (TTPs). Cross-Functional Leadership: Act as a subject matter expert for Infrastructure, Engineering, and Security teams. Guide the adoption of proactive security measures and help integrate security best practices throughout the development lifecycle and company infrastructure. Proactive Threat Modeling: Lead collaborative threat modeling for new products and infrastructure. Support cloud platform, Engineering, and IT teams in identifying and mitigating architectural vulnerabilities before deployment. Continuous Detection Engineering: Build, refine, and continually improve a library of high-fidelity detections. Ensure alerting mechanisms adapt to new exploitation methods and evolving industry standards. Industry Alignment: Stay current with the latest security developments (such as CISA advisories and new MITRE techniques) to keep Sigma’s controls aligned with industry standards. Resilience Testing & Training: Design and run incident response simulations and tabletop exercises. Educate non-security teams on their crisis roles and identify any weaknesses in our layered defense approach. Advanced Incident Management: Lead advanced incident response efforts to ensure security incidents are managed quickly and effectively.

Join Olo, a premier SaaS provider revolutionizing the restaurant sector by enhancing digital transformation. Our platform empowers businesses to offer highly personalized and lucrative guest experiences, ensuring that every interaction feels special and tailored.As a Staff Security Engineer, you will serve as the technical anchor for the Olo Security Blue Team, spearheading initiatives that fortify our systems while safeguarding sensitive client and customer information. Reporting directly to the Security Engineering Director, you will play a pivotal role in establishing robust security measures that maintain operational integrity.Your responsibilities will encompass identifying and prioritizing future projects based on risk assessments, executing cross-departmental initiatives with both ownership and excellence, and mentoring fellow team members to enhance their skill sets. If you are driven by the desire to mitigate risks while fostering innovation, we invite you to become part of our dynamic team!This position offers the flexibility to work remotely from anywhere within the U.S. or from Olo's vibrant headquarters located in NYC.

About the Role Sigma Computing is seeking a Senior Security Engineer II focused on Cloud & Data Security to help safeguard our large-scale, cloud-native SaaS platform. This position centers on engineering: building security solutions, not just operating existing tools. The role calls for a subject matter expert in cloud security architecture. Collaboration with Engineering, Security, and Product teams is key, as is designing scalable controls that support business growth. Responsibilities include creating secure architectures, integrating controls into infrastructure-as-code, and setting up automated guardrails so teams can move quickly without waiting for manual security sign-offs. This is a hands-on position for someone who thrives in complex cloud environments, values automation, and knows how to scale security for a growing SaaS company. What You Will Do Architectural Leadership: Work closely with infrastructure and engineering teams to embed security into development workflows. Lead technical discussions that shape security strategy and initiatives. Multi-Cloud Engineering: Design, implement, and refine Sigma’s cloud security across AWS, GCP, and Azure, using deep architectural expertise. Threat Modeling & Incident Response: Conduct threat modeling for cloud environments and handle incident response, including investigation and remediation of malicious activity. Identity & Access Management: Develop strategies for IAM and privileged access (RBAC/ABAC, federation, least privilege, cross-account access). Remove standing privileges and long-lived credentials, and promote zero-trust and privileged access controls across IaaS and SaaS. Cloud Data Security Controls: Implement data classification, encryption/KMS, masking/tokenization, access governance, retention and deletion policies, and reduce exfiltration risks across APIs and data pipelines. Automated Remediation Workflows: Build automated responses for recurring cloud misconfigurations, drift, and policy violations to improve operational efficiency and response times. Security Stack Management: Deploy and manage cloud-native services, including CSPM, CNAPP, DSPM, SIEM, DLP, WAF, Kubernetes, and container security tools. Network Defense: Evaluate and implement zero-trust network security measures. Location: New York City, NY

CoreWeave is the definitive cloud solution for AI™. Designed by innovators for innovators, we provide a robust platform of technology, tools, and expert teams that empower trailblazers to confidently build and scale AI solutions. Trusted by top AI research labs, startups, and global enterprises, CoreWeave merges exceptional infrastructure performance with profound technical know-how to expedite breakthroughs and transform computing power into actionable capability. Established in 2017, CoreWeave became publicly traded (Nasdaq: CRWV) in March 2025. Discover more at www.coreweave.com.What You Will Do:The Enterprise Security team at CoreWeave is tasked with safeguarding our daily operations—covering identity, endpoints, networks, and SaaS—ensuring the company can maintain agility without sacrificing security. This team is accountable for the controls, guardrails, and automation that protect our workforce, contractors, and vital business applications within a cloud-native environment.If you're passionate about zero trust, phishing-resistant MFA, and creating secure-by-default experiences that enhance productivity, this is the perfect team for you.About the Role:As a Senior Security Engineer, Enterprise Security, you will architect and implement the security measures that support CoreWeave's workforce and enterprise framework. You will spearhead projects related to identity, access management, device and endpoint security, and SaaS security—collaborating closely with IT Engineering, Endpoint, Network, and various security teams.Your routine will involve a blend of hands-on engineering (coding, building integrations, fine-tuning controls) and architecture and program leadership (setting standards, defining frameworks, and encouraging adoption across teams). You will be accountable for transforming high-level goals—such as “implementing zero trust for workforce access” or “deploying phishing-resistant MFA at scale”—into tangible designs, automation, and quantifiable risk reduction.In this position, you will:Develop advanced identity and access controls

At January, we are on a mission to revolutionize consumer finance from the ground up. By personalizing interactions and optimizing decision-making throughout all stages of consumer credit, we empower both consumers and creditors, ensuring that credit is fair, accessible, and tailored to individual needs.As a Lead Security Engineer, you will redefine security standards in an industry where trust has been significantly compromised. This is a unique opportunity to join us at a pivotal moment: we have established the hard-earned trust of leading financial institutions, and now you will create the security framework that extends this trust to millions of consumers.You will design and implement a dual trust architecture, safeguarding both consumer-facing experiences and robust enterprise systems. You will tackle technical challenges that are unparalleled in the industry, such as privacy-preserving data systems, compliance automation across multiple jurisdictions, and AI-driven decision-making processes. Your influence will shape our security strategy and culture from the ground up, demonstrating that security is not merely an overhead cost, but a competitive advantage that drives enterprise partnerships and market growth.Your ImpactTransform security into a competitive edge: Position January's security as a key differentiator that attracts banks and enterprises, unlocking Tier 1 partnerships and deals that competitors cannot secure.Promote security-by-design in product and application development: Collaborate with product and engineering teams to identify critical risks early in the process, focusing on application security across frontend, Flask services, and databases. Integrate security into the discovery and design phases, ensuring secure development patterns are embedded in workflows.Design systems for bank-grade data protection: Create and enforce data classification, encryption, and access control mechanisms that comply with regulatory standards, ensuring sensitive data remains within authorized boundaries.Foster a security-first engineering culture: Advocate for security-centric thinking within engineering teams without hindering progress. Lead incident responses decisively, ensuring that January emerges stronger from security events through thorough post-incident analyses.Streamline compliance with minimal overhead: Maintain SOC 2, PCI-DSS, and financial compliance using automated systems and build infrastructure that generates audit evidence seamlessly, eliminating compliance bottlenecks.

Why Join UsAt Brex, we are transforming the way businesses manage their expenses through our innovative AI-powered spend platform. By integrating corporate cards, banking, and global payments with user-friendly software for travel and expenses, we empower companies—from startups to large enterprises like DoorDash, Flexport, and Compass—to control their spending proactively, reduce costs, and enhance efficiency on a global scale.Joining Brex means you will push boundaries, challenge conventional thinking, and collaborate with some of the brightest minds in the industry. We are dedicated to fostering a diverse team and inclusive culture, believing that your potential is only limited by your ambition. We provide you with the tools, resources, and support necessary to elevate your career.Engineering at BrexOur engineering approach at Brex focuses on building scalable systems with intention and speed. Our teams, which encompass Software, Data, Security, and IT, operate with a high degree of autonomy and foster deep collaboration. We take on complex technical challenges, take ownership of our results, and strive for excellence across all stages—from architecture to deployment. At Brex, engineering is a craft, and our builders evolve into leaders.Your RoleAs a Senior Security Operations Engineer at Brex, your mission will be to prevent, detect, and respond to security threats across our corporate and cloud environments. You will leverage existing systems and develop new tools to enhance our security capabilities. Our team is responsible for various functions in corporate security, detection & response, and infrastructure security domains, employing systems engineering and automation to support these functions.Security Operations is nested within our broader Trust & IT organization, providing opportunities to collaborate closely with Application Security, Corporate Engineering, Governance, Risk & Compliance (GRC), and IT. You will work to enhance security configurations, promote positive employee behaviors, and prevent incidents from escalating. Furthermore, you will contribute to our open-source project Substation and have the chance to share insights on the Brex Tech Blog. You will be part of a team that actively engages with the broader security community, committed to mentorship and engineering excellence.We seek individuals with a robust background and a keen interest in detecting, responding to, and resolving security incidents and challenges. You should be passionate about security and eager to contribute to a forward-thinking team.

About the RoleJoin our dynamic team at FanDuel as we seek a skilled Senior Enterprise Security Engineer. This pivotal role requires a professional who is dedicated to crafting and implementing enterprise security control strategies, while also shaping our security posture. You will play a key role in balancing risk reduction with user experience and operational enablement at scale.Reporting directly to the Senior Manager of Enterprise Security Engineering, you will tackle diverse security challenges and lead initiatives that foster a secure environment for our operations.Your ResponsibilitiesImplement cutting-edge models such as “secure by default” and “zero trust” to maintain a robust security posture.Act as a security subject matter expert, collaborating with internal teams to meet business objectives and overcome security challenges.Develop and manage team roadmaps while staying informed of the latest threats and identifying security risks independently.Utilize automation and development approaches to enhance enterprise-wide security controls.Employ AI technologies to amplify the effectiveness of Security Engineering and FanDuel's operations.Support the security organization as needed, fostering a collaborative team environment.What We’re Looking ForProven expertise in security engineering across multiple domains, including Zero Trust, Endpoint Security, Data Protection, and more.Intermediate proficiency in scripting languages such as Python, Go, or Ruby; experience with Python and PowerShell is a plus.Familiarity with identity access management frameworks and protocols like SAML, SCIM, OAuth, and WebAuthN.Ability to model threats to corporate infrastructure and implement preventative architectures and controls.Strong communication skills to work effectively with a diverse range of partners, from engineering to legal teams.Adeptness in navigating rapidly evolving environments with a focus on solving ambiguous challenges.

About UsAt Justworks, we foster a friendly and inclusive workplace culture where our employees are valued and supported. We offer comprehensive benefits, wellness programs, team retreats, and opportunities to connect with industry leaders in the startup ecosystem. Our commitment is to empower businesses by allowing them to focus on their core operations while we tackle their HR challenges. We are driven by data and constant innovation. If you are eager to contribute to a dynamic, entrepreneurial environment and are passionate about creating meaningful solutions while enjoying the journey, we invite you to join us.Our team is united by shared objectives and motivations, which are reflected in our core values as a company.Discover Our ValuesIf this resonates with you, we would love to have you on board.Your RoleWe are seeking a dedicated and experienced Senior Security Engineer with a specialization in AI to spearhead the execution of our AI strategy and advance the objectives of our Digital Security team. The ideal candidate will possess extensive expertise in developing and enhancing security protocols for AI systems, effectively defending against unique AI-related threats. You should have a strong background in assessing the security of software systems featuring AI capabilities, and designing protective measures to safeguard our data from AI-specific vulnerabilities. A foundational understanding of programming and development, particularly with languages such as Ruby on Rails and JavaScript, is essential. Experience in a Unix-like environment and proficiency with standard cybersecurity tools are also preferred.