It Security Engineer Jobs

At Kargo, our mission is to build a connective tissue between the physical world of freight and the digital ecosystem used to manage it. We believe that advancements in smart infrastructure are critical to enabling a safer and more efficient future for logistics. Our loading dock sensor platform verifies all incoming and outgoing freight, aggregating data that enables shippers and carriers to efficiently manage dock operations, switch out suppliers and understand material flow in real time. We care deeply about delivering the best solutions for our customers. As a member of the Kargo team, you will have the opportunity to develop and deploy tomorrow’s hardware & software solutions and help revolutionize logistics. Responsibilities Network Security Architecture & Engineering Design and implement secure network architectures across cloud, on-premise, and edge/IoT environments. Configure and maintain firewalls, VPNs, network segmentation, NAC, and secure remote access solutions. Evaluate and deploy new security technologies and controls. Security Operations & Incident Response Monitor network activity and security alerts. Investigate suspicious activity, security events, and potential breaches. Lead containment, remediation, and post-incident reviews. Vulnerability Management & Risk Reduction Oversee vulnerability assessments, penetration testing, and security reviews. Prioritize and remediate identified risks and security gaps. Maintain security hardening standards and best practices. Cloud & Infrastructure Security Secure cloud infrastructure, network connectivity, and identity/access controls. Partner with Infrastructure and Engineering teams to embed security into deployments and operations. Support secure scaling of systems, services, and environments. IoT/Edge Networking/Security Implement zero-touch provisioning and secure identity management for edge hardware to ensure fleet integrity. Architect secure, low-latency remote access

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . About the Role Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 97M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit redditinc.com . Reddit is hiring a Staff Product Security Engineer to make the secure path the easiest path for engineers and AI agents. You'll lead the design and delivery of secure frameworks, paved paths, and workflow-native controls that eliminate recurring vulnerability classes before they reach production. As AI-assisted development accelerates code velocity faster than manual review can absorb, this role exists to close that gap structurally — through guardrails, automation, and platform-level prevention that scale with the engineering org. What You'll Do Build and evolve secure frameworks, guardrails, and library-level controls that make common vulnerability classes harder to introduce. Design security controls for AI-assisted development — including reusable rule packs and skills that shape how engineers and coding agents generate, review, and ship code. Embed security into the workflows engineers already use. Drive product security reviews for new launches and major architectural changes. Identify and eliminate systemic security debt. Shape strategy, influence architecture, an

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We're looking for an Information Security Engineer who can think broadly about how infrastructure is built, attacked, defended, and improved. You may have deep experience in one area—such as endpoint security, Active Directory, Data Loss Prevention, cloud security, identity, or detection and response—but you’re motivated by solving security problems across the environment. As an Information Security Engineer focused on infrastructure security, you'll help protect Palantir's global endpoints, servers, identity systems, applications, networks, and data flows. You'll work across teams to reduce attack surface, improve defensive controls, investigate security events, and turn security findings into durable architectural and operational improvements. This is not just a corporate security role; the adversaries we face are sophisticated. We need someone who understands both the details and the broader system: how a weakness in one part of the environment can create risk somewhere else, how controls interact, and how to build security improvements that hold up in practice. Core Responsibilities Design, implement, and improve defensive security controls across endpoints, servers, identity systems, cloud services, SaaS applications, networks, and data flows Own or contribute to security posture improvements, including hardening standards, configuration management, vulnerability remediation, access controls, monitoring, and ongoing validation Evaluate security risks in new platforms, products, architectures, vendors, and services, and translate findings into practical recommendations and engineering work Build and maintain automation fo

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We're looking for an Information Security Engineer who can think broadly about how infrastructure is built, attacked, defended, and improved. You may have deep experience in one area—such as endpoint security, Active Directory, Data Loss Prevention, cloud security, identity, or detection and response—but you’re motivated by solving security problems across the environment. As an Information Security Engineer focused on infrastructure security, you'll help protect Palantir's global endpoints, servers, identity systems, applications, networks, and data flows. You'll work across teams to reduce attack surface, improve defensive controls, investigate security events, and turn security findings into durable architectural and operational improvements. This is not just a corporate security role; the adversaries we face are sophisticated. We need someone who understands both the details and the broader system: how a weakness in one part of the environment can create risk somewhere else, how controls interact, and how to build security improvements that hold up in practice. Core Responsibilities Design, implement, and improve defensive security controls across endpoints, servers, identity systems, cloud services, SaaS applications, networks, and data flows Own or contribute to security posture improvements, including hardening standards, configuration management, vulnerability remediation, access controls, monitoring, and ongoing validation Evaluate security risks in new platforms, products, architectures, vendors, and services, and translate findings into practical recommendations and engineering work Build and maintain automation fo

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Insider Threat Detection Engineer, you are responsible for protecting Palantir's people, data, and most sensitive assets across the globe. Your technical expertise is matched by your integrity and genuine passion for security. You work well on a team, are highly motivated, and thrive on solving problems and taking on new challenges. Your team serves as a critical line of defense, responsible for the 24/7 prevention, detection, and investigation of security events and active threats across Palantir's environment. This role focuses on all aspects of Detection and Response with a strong emphasis on identifying and mitigating insider risks. Your work will directly impact the success of Palantir's mission by making it difficult for adversaries — both external and internal — to compromise our global network.

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Insider Threat Detection Engineer, you are responsible for protecting Palantir's people, data, and most sensitive assets across the globe. Your technical expertise is matched by your integrity and genuine passion for security. You work well on a team, are highly motivated, and thrive on solving problems and taking on new challenges. Your team serves as a critical line of defense, responsible for the 24/7 prevention, detection, and investigation of security events and active threats across Palantir's environment. This role focuses on all aspects of Detection and Response with a strong emphasis on identifying and mitigating insider risks. Your work will directly impact the success of Palantir's mission by making it difficult for adversaries — both external and internal — to compromise our global network. Core Responsibilities Engineer and automate end-to-end detection and investigation workflows, continuously improving Detection and Response infrastructure Develop alerting and detection strategies to identify malicious or anomalous behavior, including new and novel defensive techniques that adapt to evolving adversary tactics and tradecraft Dissect network, host, memory, and other artifacts originating from multiple operating systems and applications. Investigate security events and active attacks across the enterprise, uncovering sophisticated threats and identifying patterns of behavior that indicate insider risk Influence and inform security controls designed to safeguard Palantir's most critical assets Partner closely with other members of the Information Security team to lead changes in the company

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Insider Threat Detection Engineer, you are responsible for protecting Palantir's people, data, and most sensitive assets across the globe. Your technical expertise is matched by your integrity and genuine passion for security. You work well on a team, are highly motivated, and thrive on solving problems and taking on new challenges. Your team serves as a critical line of defense, responsible for the 24/7 prevention, detection, and investigation of security events and active threats across Palantir's environment. This role focuses on all aspects of Detection and Response with a strong emphasis on identifying and mitigating insider risks. Your work will directly impact the success of Palantir's mission by making it difficult for adversaries — both external and internal — to compromise our global network. Core Responsibilities Engineer and automate end-to-end detection and investigation workflows, continuously improving Detection and Response infrastructure Develop alerting and detection strategies to identify malicious or anomalous behavior, including new and novel defensive techniques that adapt to evolving adversary tactics and tradecraft Dissect network, host, memory, and other artifacts originating from multiple operating systems and applications. Investigate security events and active attacks across the enterprise, uncovering sophisticated threats and identifying patterns of behavior that indicate insider risk Influence and inform security controls designed to safeguard Palantir's most critical assets Partner closely with other members of the Information Security team to lead changes in the company

A Career with Point72’s Technology Group As Point72 reimagines the future of investing, our Technology team is constantly evolving our firm’s IT infrastructure and engineering capabilities, positioning us at the forefront of a rapidly evolving technology landscape. We’re a team of experts who experiment and work to discover new ways to harness open-source solutions, modern cloud architectures, and sophisticated Artificial Intelligence (AI) solutions, while embracing enterprise agile methodologies. Our commitment to building and innovating in the AI space provides the framework intended to drive smarter decision making and enhance how we build and operate our platforms and applications. As a member of Point72’s Technology team, we encourage and support your professional development from day one—helping you advance your technical skills, contribute innovative ideas, and satisfy your own intellectual curiosity—all while delivering real business impact for our multi-billion-dollar global business. What you’ll do As a GenAI Security Engineer, you will develop and implement next-generation security controls to protect the firm’s agentic and human-in-the-loop GenAI systems. Specifically, you will: Build and run generative AI (GenAI) security controls for applications and platforms, including guardrails for model usage and API integrations. Secure agent/tool-calling and connector workflows, such as MCP or equivalent, to prevent tool abuse and data exfiltration. Lead AI threat modeling and risk assessments, maintaining threat models for prompt injection, jailbreaks, tool injection, data exfiltration, training data leakage, and supply chain risks, and driving mitigations. Define secure-by-default reference architectures for cloud-native and hybrid GenAI workloads, including network isolation and secrets handling. Develop and continuously improve monitoring and detection for anomalous AI behavior and unsafe outputs. Lead incident response and remediatio

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Palantir's Offensive Security team probes our own products, infrastructure, and cloud environment the way a real attacker would. As an Offensive Security Engineer, you will test internal applications and infrastructure, chain findings into realistic attack paths, and work directly with the engineers responsible for the affected systems to get issues closed. A growing part of the team’s work is also developing agentic offensive security tooling: LLM-driven systems that encode operator tradecraft and apply it continuously. You will help in the design of that tooling and prove it out on live assessments. You will also help to coordinate third-party penetration testing engagements, scoping the work with specialized external firms, keeping assessments focused on the risks that matter, and turning their results into concrete remediation. Core Responsibilities Conduct hybrid web application penetration tests that combine source code review with runtime exploitation across our products and internal tooling. Perform external network penetration tests against internet-facing infrastructure, identifying exposed services, misconfigurations, and paths to obtain an initial foothold. Perform internal network and Active Directory security assessments, identifying privilege escalation paths, lateral movement opportunities, and misconfigurations. Assess the security of cloud and containerized infrastructure, including identity, network, and workload configurations. Collaborate with detection engineering to validate telemetry and detection coverage against real-world attack techniques uncovered during engagements. Scope and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Information Security Engineer, you are responsible for the security of Palantir’s people and infrastructure around the globe. Your technical expertise is second only to your integrity and real passion for security and technology in general. Our ideal candidate works well on a team, is highly motivated, and enjoys solving problems and taking on new challenges. In this role, you’ll be the first line of defense for protecting Palantir. Your team is responsible for the 24/7 prevention, detection, and investigation of security events and active attacks across our entire infrastructure. Your work will directly impact the success of Palantir's mission as you seek to make it challenging for our adversaries and protect our global network. Core Responsibilities Build, run, and own infrastructure and automation to detect, contain, and eradicate security threats. Develop alerting and detection strategies to identify malicious or anomalous behavior. Develop new and novel defensive techniques to identify or counteract changes in adversary techniques and tactics. Dissect network, host, memory, and other artifacts originating from multiple operating systems and applications. Investigate enterprise-wide operations to uncover sophisticated and undetected threats. Partner closely with other members of the Information Security team to lead changes in the company's network defense posture. What We Value Broad exposure to multiple security subject areas, including a strong background in forensics or threat intelligence. Deep exposure in Incident Response or Detection Engineering. Desire to furt

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Information Security Engineer, you are responsible for the security of Palantir’s people and infrastructure around the globe. Your technical expertise is second only to your integrity and real passion for security and technology in general. Our ideal candidate works well on a team, is highly motivated, and enjoys solving problems and taking on new challenges. In this role, you’ll be the first line of defense for protecting Palantir. Your team is responsible for the 24/7 prevention, detection, and investigation of security events and active attacks across our entire infrastructure. Your work will directly impact the success of Palantir's mission as you seek to make it challenging for our adversaries and protect our global network. Core Responsibilities Build, run, and own infrastructure and automation to detect, contain, and eradicate security threats. Develop alerting and detection strategies to identify malicious or anomalous behavior. Develop new and novel defensive techniques to identify or counteract changes in adversary techniques and tactics. Dissect network, host, memory, and other artifacts originating from multiple operating systems and applications. Investigate enterprise-wide operations to uncover sophisticated and undetected threats. Partner closely with other members of the Information Security team to lead changes in the company's network defense posture. What We Value Broad exposure to multiple security subject areas, including a strong background in forensics or threat intelligence. Deep exposure in Incident Response or Detection Engineering. Desire to furt

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role As an Information Security Engineer, you are responsible for the security of Palantir’s people and infrastructure around the globe. Your technical expertise is second only to your integrity and real passion for security and technology in general. Our ideal candidate works well on a team, is highly motivated, and enjoys solving problems and taking on new challenges. In this role, you’ll be the first line of defense for protecting Palantir. Your team is responsible for the 24/7 prevention, detection, and investigation of security events and active attacks across our entire infrastructure. Your work will directly impact the success of Palantir's mission as you seek to make it challenging for our adversaries and protect our global network. Core Responsibilities Build, run, and own infrastructure and automation to detect, contain, and eradicate security threats. Develop alerting and detection strategies to identify malicious or anomalous behavior. Develop new and novel defensive techniques to identify or counteract changes in adversary techniques and tactics. Dissect network, host, memory, and other artifacts originating from multiple operating systems and applications. Investigate enterprise-wide operations to uncover sophisticated and undetected threats. Partner closely with other members of the Information Security team to lead changes in the company's network defense posture. What We Value Broad exposure to multiple security subject areas, including a strong background in forensics or threat intelligence. Deep exposure in Incident Response or Detection Engineering. Desire to furt

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Information Security's mission is to secure Palantir, and by extension, protect our customers and the critical data they trust us with. We want someone whose technical skill is matched by integrity and genuine curiosity about security. You'll thrive here if you're self-motivated, collaborative, and energized by hard problems with no manual. Much of our work is ambiguous by design; if chasing clear outcomes down unclear paths excites you more than it unsettles you, you'll fit right in. This internship comes with real impact, real autonomy, and the resources to make meaningful security improvements across Palantir. Backgrounds vary. What matters is curiosity, tenacity, and a drive to become a world-class security engineer. You'll be treated like a full-time engineer, given real ownership, trusted with real projects, and accountable for outcomes our customers depend on. Core Responsibilities Impact: We address meaningful and exciting projects that change the security of Palantir for the better. Ownership: We see projects through from beginning to end, working through any obstacles we may encounter. We trust each other to effectively handle time and priorities and give people the space to think for themselves. Collaboration: We work internally with people from a variety of backgrounds. We also work externally with our customers, to understand and tackle their problems. Growth: We believe experiential learning is one of the best teachers and encourage ourselves and our peers to seek new challenges and opportunities for growth, as well as find new ways to innovate and share knowledge. What We Value Strong desire to own i

The Security Incident Response Team (SIRT) plays a vital role in keeping Datadog safe from cybersecurity threats, defending the organization against threat actors, and maintaining the trust of our customers by ensuring their data remains protected. In this role, you will work closely with teams across Datadog to identify, triage, and respond to a wide range of threats, ensuring that we can contain any incidents as quickly as possible. You will also contribute to the tools and systems that make us more effective in our mission, and help ensure we have cross-functional learning from incidents to improve our defensive posture going forward. At Datadog, we place value in our office culture - the relationships and collaboration it builds, and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Partner with our Cyber Threat Intelligence and Detection Engineering teams to identify threats to Datadog and ensure we have appropriate, accurate, high-signal detections for those threats. Triage escalated alerts to determine whether a security incident is occurring or may occur imminently. Respond to security incidents, whether as an incident commander or as an incident responder Make us more efficient through building tools and automations that eliminate repetitive processes Help us improve our overall security posture through post-incident reviews, tabletop and purple team exercises, and process/runbook improvements. Participate in a light on-call rotation. Who You Are: You have at least 5 years of experience in security incident response, threat hunting, security operations, cloud security, or other operational security domains. You’ve worked with at least one public cloud platform (AWS, GCP, or Azure) and cloud-native technologies like Kubernetes, Docker, or Terraform. You have a strong understanding of cloud-native threat actor TTPs and corresponding defensive contr

About the role: This is an opportunity to join K's critical InfoSec team as a Senior Security Engineer - AppSec and operate with foresight in protecting our infrastructure, applications, cloud security, and customer trust. As a lean team, we span across multiple areas such as AppSec, CloudSec, SecOps, ITSec, and Compliance and apply it towards reading and interpreting architecture, or planning and building out net new security solutions. You will have the autonomy to define and implement cutting-edge security solutions across our entire technical ecosystem, ensuring our innovative work remains robust and compliant against evolving global threats. This role is crucial for establishing and maintaining a world-class security posture, particularly within the sensitive and highly regulated healthcare technology space. What you will do: Lead the development and implementation of robust application security protocols throughout the entire Software Development Lifecycle (SDLC). Partner with engineering teams to incorporate security into architecture, design, development, testing and deployment Perform hands-on security testing of web applications, APIs, cloud-native services and supporting infrastructure Build and improve automated security testing within CI/CI pipelines, including static analysis, dependency scanning, secrets detection, container scanning and dynamic testing Evaluate effectiveness of application security tools, improve tooling output quality and reduce unnecessary findings and developer friction Develop secure coding standards with developer-focused documentation Contribute application security expertise to vulnerability management, during security incidents/investigations and post-incident reviews Evaluate third party applications, libraries and APIs and integrations for security risk Ensure adherence to relevant healthcare regulatory and compliance requirements (e.g., HIPAA, GDPR, etc.) across all product lines and systems. What we're looking for: 4+ yea