Application Security Engineer

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.

As an Incident Manager in the Detection & Response team, you will play a pivotal role in safeguarding our systems and data. You will be responsible for leading incident response efforts, coordinating with various teams to ensure rapid resolution of incidents, and enhancing our incident management processes. This position requires a keen understanding of security vulnerabilities and incident management best practices.

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.

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.

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.

About Us:DoubleVerify (DV) stands as the premier authority in digital performance solutions, enhancing the quality of impressions and audience engagement in digital advertising. Our solutions, grounded in best practices, deliver significant value to both media buyers and sellers by ensuring transparency and accountability in the market. We guarantee ad viewability, brand safety, fraud protection, and accurate audience targeting across campaigns to optimize performance. Since our inception in 2008, DV has empowered numerous Fortune 500 companies to maximize their media investments through exemplary solutions that foster a more robust industry. About the Role:The Senior Incident Manager is at the forefront of leading DoubleVerify’s Major Incident Management (MIM) program, overseeing the complete lifecycle of critical incidents—from detection and response to business impact assessment, communication, and post-incident enhancements. This pivotal role demands an individual contributor who will spearhead structured, cross-functional incident responses across Engineering, Product, Commercial, and Executive teams. The position requires a blend of technical acumen and sound business judgment to mitigate customer impact, safeguard revenue, and facilitate decisive actions during high-stakes situations. What You’ll Do:Act as the single point of accountability for Sev1–Sev3 incidents.Facilitate real-time decision-making, escalation, and coordination among teams.Manage incident communications, delivering timely updates to executives and stakeholders.Translate technical challenges into understandable business impacts.Own and refine the Major Incident Management process.Lead post-incident reviews, ensuring follow-through on identified actions.Monitor key metrics (e.g., MTTR, incident trends) and drive continuous improvements.Collaborate with Product, Commercial, and Legal teams on client communications when necessary.Align incident response efforts with business priorities, emphasizing customer and revenue impact.Enhance tooling, automation, and workflows for incident management. What We’re Looking For:Experience:Minimum 7 years in SRE, DevOps, Technical Operations, or Incident Management.Demonstrated experience leading Sev1/Sev2 incidents in high-availability settings.Proven track record of coordinating cross-functional teams during critical outages.Technical:Exceptional analytical and problem-solving skills.Strong communication and interpersonal abilities.Proficiency in incident management tools and methodologies.

Join Our Innovative Security TeamAt OpenAI, security is paramount to our mission of ensuring that artificial general intelligence serves the best interests of humanity. Our dedicated Security team safeguards OpenAI’s technology, personnel, and products. We are technical in our solutions and operational in our approach, committed to supporting all aspects of our products and research. Our guiding principles include prioritizing impactful initiatives, empowering our researchers, preparing for future technological advancements, and fostering a robust security culture.Your Role as an Application Security EngineerIn the role of Application Security Engineer, you will play a vital part in identifying and mitigating security vulnerabilities within our software applications. This involves creating security tools, conducting code reviews, performing penetration testing, and executing comprehensive security assessments.We seek individuals who will collaborate closely with development teams to embed secure coding practices throughout the software development lifecycle, preemptively addressing security risks. You will also offer security guidance to developers and stakeholders, promoting a culture of security awareness across the organization.This position is based in New York City, but we also consider candidates for remote work. Our hybrid work model requires three days in the office each week, and we offer relocation assistance for new employees.Key ResponsibilitiesConduct Security Assessments: Regularly perform security assessments, code reviews, and penetration tests to identify vulnerabilities in applications and software.Create and Implement Security Tools: Design and develop security tools, frameworks, and methodologies to defend applications against potential threats.Collaborate with Development Teams: Work hand-in-hand with development teams to ensure security best practices are integrated throughout the software development lifecycle, including secure coding standards.Threat Modeling and Risk Assessment: Carry out threat modeling and risk assessments to proactively identify potential risks and devise effective mitigation strategies.Manage Vulnerabilities: Track, analyze, and manage vulnerabilities within applications, providing guidance and support for remediation efforts.Incident Response Support: Assist in incident response efforts and contribute to the development of incident response protocols.

Join Crosby as a Security Engineer, where you'll play a pivotal role in safeguarding our information systems and data integrity. As a vital member of our security team, you will implement robust security measures, conduct risk assessments, and collaborate with cross-functional teams to protect our infrastructure from potential threats.

About Our TeamAt OpenAI, our dedicated Security team is committed to providing our researchers, engineers, and staff with seamless access to the tools and resources necessary for optimal productivity, security, and comfort. As an Enterprise Security Engineer, you will thrive in a highly technical, collaborative environment focused on employee satisfaction.Our IT team, though compact and agile, covers a wide array of security domains, empowering you to contribute to innovative solutions and build robust systems from the ground up. With strong support and ample resources, we aim to implement a world-class enterprise security program.Role OverviewIn the role of Enterprise Security Engineer, you will play a key role in safeguarding OpenAI's internal information systems through the implementation and management of security protocols. You will collaborate closely with our IT and Security teams to enhance security capabilities, enforce policies, and monitor systems for potential threats.This position is available for remote work or relocation assistance can be provided for candidates moving to San Francisco.Your Responsibilities Will Include:Designing and executing robust security measures to protect our organization's information assets from unauthorized access, disclosure, or misuse.Monitoring both internal and external systems for security threats and responding promptly to alerts.Contributing to and enforcing IT and Security policies and procedures across the organization.Collaborating with the IT department to fortify our infrastructure using best practices in AzureAD, GSuite, GitHub, and other SaaS tools.Providing guidance to employees on best practices for securing endpoints, as well as office AV and network infrastructure.Creating innovative sharing controls and associated monitoring to safeguard company data, including intelligent group management, Data Loss Prevention (DLP), and other relevant security controls.Implementing forward-thinking models such as 'secure by default' and 'zero trust' to establish sustainably secure environments for knowledge workers and developers.Identifying and addressing vulnerabilities within our internal systems while adhering to best practices for data security.Utilizing our AI-driven models to enhance systems for improved security detection and response, data classification, and other security-related tasks.

Join Hudson River Trading (HRT), a leading quantitative trading firm renowned for its commitment to technological advancement. We develop and deploy state-of-the-art systems in one of the most sophisticated computing environments globally, driving our expansive trading operations.We are on the lookout for a seasoned Security Operations Engineer to become a vital part of our expanding Security Operations team. In this pivotal role, you will design, build, and maintain strategic security solutions that safeguard HRT’s global cyber security infrastructure.The ideal candidate will possess a deep understanding of SIEM, SOAR, UEBA, and DLP technologies. Proficiency in programming languages, particularly Python, along with experience in log management and observability platforms such as the Elastic stack, is essential. This role demands strong technical troubleshooting abilities, along with exceptional organizational, automation, project management, and communication skills across various functions.

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

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.

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 UsAt Gecko Robotics, we empower critical infrastructure by ensuring its availability, reliability, and sustainability through our innovative solutions. Our cutting-edge technology integrates wall-climbing robots, top-of-the-line sensors, and an AI-driven data platform, offering clients unprecedented insights into the current and future state of their physical assets. This enables real-time decision-making that enhances operational efficiency and safety, promotes mission readiness, and safeguards the environment from potential infrastructure failures.Position OverviewWe are seeking our inaugural dedicated Product Security Engineer to enhance and expand our application security measures at Gecko. In this pivotal role, you will have a significant impact on the security framework of our product as we continue to evolve.This is a hands-on position that requires direct collaboration with engineering teams to establish secure software practices as the default standard. While we have existing tools in place, we need someone who can refine them, automate processes, and minimize manual security tasks.If you thrive on building systems from scratch, addressing tangible challenges, and working closely with product and engineering teams, this role is tailored for you.Key ResponsibilitiesEnhance application security across our products and cloud systems, partnering with engineers to ensure secure software is the norm without hindering productivity.Integrate security checks into CI/CD pipelines to catch potential issues early, while refining existing tools to minimize distractions for engineers.Conduct code and infrastructure reviews to identify and mitigate security vulnerabilities, guiding teams in implementing secure, repeatable patterns.Automate currently manual security tasks, establishing scalable guardrails as the company expands.Collaborate with platform teams to bolster cloud security in AWS or Google Cloud, avoiding common pitfalls.Support the implementation of security controls necessary for SOC 2, ISO, and similar standards as we grow.Technologies We UtilizePython, JavaScript, ReactAmazon Web Services and Google CloudGitHub, GitLab, JenkinsContainers and Infrastructure as Code

About the Role Adaptive Security is looking for a Lead Application Security Engineer in NYC. This position shapes how we defend our software against threats, guiding security strategy and execution across our applications. What You Will Do Lead the design and rollout of security measures for software applications Develop and refine security strategies to address emerging risks Work closely with teams to uphold strong security standards Ensure our practices align with industry regulations and compliance requirements What Matters Here Deep experience in application security Ability to guide teams and set technical direction Commitment to both proactive defense and regulatory compliance

At Artemis, we are revolutionizing the realm of AI-driven cybersecurity, empowering organizations to proactively detect and defend against threats in a rapidly evolving digital landscape where AI technologies are engaged in cyber warfare.Supported by esteemed investors such as First Round Capital and Brightmind, alongside a cadre of renowned cybersecurity professionals, we are committed to delivering cutting-edge solutions.Our leadership team, including Shachar (former Palo Alto Networks, AWS, Demisto) and Dan (former Abnormal Security, Twitter), has successfully launched and scaled trusted cybersecurity products for thousands of clients, bringing unparalleled expertise in customer relations, technology, and security.Our diverse and talented team consists of software engineers, AI researchers, security engineers, and product designers from leading companies including Google, Abnormal AI, Wiz, Meta, AWS, and CERN.As we expand our team, we seek enthusiastic builders eager to contribute to our growing customer community.Position SummaryAs a Security Research Engineer at Artemis, you will spearhead detection research, threat hunting, and the automation of security processes powered by AI. This role presents a unique opportunity to engage with both security expertise and advanced AI technology, where you will research data sources, develop detection mechanisms, investigate real incidents, and collaborate directly with clients to enhance security outcomes. Your contributions will significantly influence the threats we identify and the methods we employ to tackle them.Key ResponsibilitiesAI-Driven Detection Development - Create automation tools that utilize AI to expedite the development, fine-tuning, and validation of detection strategies on a large scale.Security Research - Conduct thorough analyses of cloud, identity, and SaaS data sources, including AWS CloudTrail, Okta, and more.

About the Opportunity At Contentful, we are dedicated to creating a secure and reliable service. Our commitment to security encompasses significant investment in resources and efforts. Our Security team plays a pivotal role in managing information security across the organization and collaborates closely with various internal teams. We believe in embedding security within our DevOps principles, ensuring robust and repeatable processes. We are seeking an enthusiastic and dedicated Manager of Security Engineering, someone who is eager to tackle complex security challenges with innovative and scalable solutions. In this role, you will oversee security engineering initiatives for Contentful's corporate systems, including the tools and platforms that empower our internal security team. Although this position is not responsible for customer-facing product security, you will work in tandem with product security teams within our security organization on overlapping responsibilities. Your role will involve a blend of leadership and hands-on technical execution, focusing on designing, implementing, and managing security controls and tools at scale. Key areas of focus will include identity and access management, data security, and SaaS platforms. You will provide strategic direction and spearhead initiatives while remaining actively involved in their execution. While you may work independently at times, you will frequently collaborate with security leadership, IT, and cross-functional partners to align strategies, implement shared initiatives, and effectively mitigate risks while minimizing impacts on end users across the organization. What to Expect? Develop a high-performing team through coaching, mentorship, goal setting, and performance feedback. Define roles and make hiring decisions to expand the team in alignment with departmental needs. Maintain a hands-on approach, balancing technical leadership with direct implementation work. Own execution and prioritization across projects and operations, utilizing agile delivery practices. Enhance effectiveness and efficiency by refining processes and tools. Champion continuous improvement across all facets of the security program. Communicate risks and technical concepts clearly to leadership and stakeholders. Collaborate with security leadership to execute business-aligned, risk-reduction roadmaps. Shape work scope, sequencing, and success criteria in line with departmental and company objectives. Drive security processes, standards, and best practices across information technology assets.

About AnthropicAt Anthropic, we are dedicated to developing AI systems that are reliable, interpretable, and steerable, ensuring they are safe and beneficial for both users and society at large. Our rapidly expanding team comprises passionate researchers, engineers, policy experts, and business leaders working together towards this vital mission.About the Role: We are seeking a skilled Campus Security Manager to join our Global Safety, Intelligence, and Security (GSIS) team in New York City. This pivotal role involves leading security operations across our NYC campuses, safeguarding our innovative AI research while nurturing a culture of trust and security among Anthropic personnel. As a collaborative security partner, you will encourage open communication, oversee vendor performance, manage incident response protocols, and coordinate cross-functional security initiatives that enhance productivity. You will balance hands-on leadership with strategic contributions to security planning, ensuring a strong security posture across all locations and maintaining compliance with AI Safety Level (ASL) requirements.

HHAeXchange is at the forefront of technology solutions for home and community-based care. Established in 2008, our mission is to create a comprehensive, end-to-end homecare ecosystem that empowers aging individuals and those with disabilities to thrive within their communities. Our dedicated team is passionate about revolutionizing healthcare by seamlessly connecting patients, personal care providers, managed care organizations, and state agencies. We are currently on the lookout for a Principal Cloud Security Engineer to join our expanding Cybersecurity team. In this pivotal role, you will lead initiatives to validate our security posture, manage and implement cutting-edge technical solutions, enhance existing security protocols, and establish robust security standards and policies. As a subject matter expert, you will develop reusable and secure solutions while cultivating strong relationships across HHAeXchange, technical teams, and customers. Your expertise will ensure alignment between our overall security strategy, HHAeXchange’s strategic objectives, and compliance requirements. You will maintain senior-level proficiency across various technical domains, particularly in Cloud and Incident Response, engage in proof-of-concept projects, adopt innovative and business-aligned technology platforms, and expand your areas of expertise as our business evolves. To excel in this role, you must be capable of fulfilling each essential duty satisfactorily. We are committed to providing reasonable accommodations to enable individuals with disabilities to perform essential functions.