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Senior Security Engineer - Detection and Response

Klaviyo

Full-time|On-site|Denver, CO

Join Klaviyo as a Senior Security Engineer specializing in Detection and Response, where you will play a pivotal role in safeguarding our systems and data. As a key member of our security team, you will be responsible for developing and implementing advanced detection strategies, responding to security incidents, and enhancing our overall security posture. T…

Mar 11, 2026

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Detection & Response Analyst II

Todyl

Full-time|On-site|Denver CO

Detection and Response Analyst IIAbout UsAt Todyl, we are dedicated to empowering small and medium-sized enterprises against the evolving landscape of cyber threats. Our innovative platform seamlessly integrates threat, risk, and compliance management, ensuring our Managed Service Providers (MSPs) and their clients receive unparalleled and cost-effective cybersecurity solutions.Our commitment to safeguarding our partners and clients while assisting them in risk management and regulatory compliance drives our team, fostering a culture of trust and collaboration.About the RoleJoin our Managed Extended Detection and Response (MXDR) team as a passionate Detection and Response Analyst II. In this role, you will play a crucial part in securing our partners’ systems and data. This is an exciting opportunity to collaborate with talented professionals, utilize state-of-the-art security tools, and deepen your expertise in security operations and threat intelligence.This position reports to the Director of MXDR and is based in our office in either Augusta, GA or Denver, CO. You will work during either evening (4 PM – 2 AM EST) or overnight (12 AM – 10 AM) shifts.Key ResponsibilitiesMonitoring & Reporting: Proactively monitor alerts and create comprehensive technical reports detailing alert activities and their root causes for our partners.Collaborative Work: Partner closely with team members to share knowledge, learn from one another, and collaborate on various projects and incidents.Automation & Tool Development: Contribute independently to internal projects, documentation, and develop new capabilities that enhance and automate security operations.Threat Hunting & Analysis: Engage in proactive threat-hunting exercises, analyze indicators of compromise (IOCs), and research malware threat families to preemptively mitigate risks.Incident Response: Assist in the triage and investigation of security incidents alongside Detection Response Account Managers (DRAMs) or Threat Hunters, ensuring thorough understanding of the root cause, scope, and impact of incidents, and facilitate proper escalation for containment and recovery.

Mar 10, 2026

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Senior Security Engineer, Enterprise

True Anomaly, Inc.

Full-time|$155K/yr - $225K/yr|On-site|Denver, CO or Long Beach, CA

A new era in space exploration is upon us. True Anomaly is on the lookout for passionate and skilled individuals to develop cutting-edge technology that addresses the engineering, manufacturing, and operational challenges of space security and sustainability.OUR MISSIONThe peaceful utilization of space is crucial for ongoing prosperity on Earth—from communications and finance to navigation and logistics. True Anomaly innovates at the crossroads of spacecraft, software, and artificial intelligence to enhance the capabilities of the United States, its allies, and commercial partners. We are dedicated to ensuring global security by facilitating access to space and promoting sustainability for everyone.OUR VALUESBe the offset. We create unique advantages through creativity and resourcefulness.What would it take? We challenge the status quo to achieve ambitious outcomes.It’s the people. Our team is our greatest asset, and collaboration makes us stronger.YOUR MISSIONAs a Senior Enterprise Security Engineer, you will play a vital role in securing the infrastructure that enables True Anomaly to achieve its mission. Your responsibilities will include designing, engineering, and implementing security improvements across employee workstations, on-premises servers, and cloud environments. You will collaborate with various organizational partners to integrate security into the company’s foundational processes while ensuring compliance with relevant requirements. You will often be tasked with addressing the challenge: “How can we empower the business to operate with minimal risk?”Within True Anomaly’s Enterprise Security team, you will have substantial autonomy to craft and execute solutions for a diverse range of security challenges. One project may focus on enhancing enterprise identity, while another could involve establishing security protocols for a manufacturing environment. You will thrive in a dynamic, fast-paced setting where your decisions and expertise will significantly influence our security stance.This position is perfect for a proactive individual who enjoys taking ownership, wishes to make a lasting impact within the organization, and is excited by the opportunity to tackle complex challenges and contribute to meaningful projects.

Feb 5, 2026

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Senior Software Engineer in Observability and Incident Response Management

The Trade Desk

Full-time|On-site|Bellevue; Boulder; Denver; Los Angeles; Seattle; Ventura

Join our dynamic team at The Trade Desk as a Senior Software Engineer specializing in Observability and Incident Response Management (IRM). In this role, you will be instrumental in developing and enhancing our observability solutions, ensuring seamless incident management processes. Your expertise will contribute to building robust systems that provide insights and drive operational excellence.We are looking for an innovative engineer who thrives in a fast-paced environment and is passionate about creating high-quality software solutions. You will collaborate with cross-functional teams, utilizing cutting-edge technologies to improve our monitoring systems and streamline incident response.

Apr 7, 2026

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Senior Software Engineer - Security Products

DigitalOcean

Full-time|$140.8K/yr - $176K/yr|On-site|Denver

Join DigitalOcean and elevate your career by working with a vibrant community of exceptional talent dedicated to creating the most user-friendly scalable cloud solutions. If you possess a growth-oriented mindset, have bold ideas, and thrive in the dynamic atmosphere of an industry innovator, you’ll fit right in. We believe in winning together—learning, enjoying the journey, and making a significant impact for the dreamers and builders around the globe.We are on the lookout for a Senior Software Engineer with a passion for startups driving the next wave of AI innovation.The RoleAs a Senior Software Engineer on our Security Products team, you will play a crucial role in designing, developing, and maintaining powerful security products and infrastructure that safeguard DigitalOcean's platform and our customers' data. This is an exciting opportunity for those who excel in a fast-paced environment and are passionate about addressing complex security challenges at scale.What You’ll DoDesign and build real-time security detection engines using Apache Flink and Kafka for cloud-scale threat detection.Create high-performance security APIs and microservices utilizing Go and JavaScript/Node.js.Implement streaming analytics for correlating security events, detecting anomalies, and gathering threat intelligence.Architect and deploy security solutions operating on Kubernetes at a hyperscale level.Develop security data pipelines that process petabytes of logs, network traffic, and telemetry data.Lead the technical design for intricate security platform features from conception through to production.Collaborate closely with security researchers, threat analysts, and cloud platform teams.Mentor junior engineers on security engineering best practices and cloud-native development.

Feb 16, 2026

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Senior Software Engineer - Security Products

DigitalOcean, Inc.

Full-time|$133.7K/yr - $167.1K/yr|On-site|Denver

Join DigitalOcean and unleash your potential in a collaborative environment filled with exceptional talent dedicated to simplifying cloud technology. If you possess a growth mindset, enjoy thinking big, and thrive in a fast-paced atmosphere, you’ll feel right at home here. We believe in winning together, fostering a culture of learning, fun, and making a significant impact for innovators across the globe.We are looking for a highly skilled and driven Senior Software Engineer to become a vital part of our Security Products team. In this crucial role, you will be responsible for the design, development, and maintenance of high-quality security products and infrastructure that safeguard DigitalOcean's platform and our clients' data. This is an exhilarating opportunity for someone who excels in a dynamic environment and is passionate about tackling complex security challenges on a large scale.

Jan 26, 2026

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Senior Application Security Engineer

True Anomaly, Inc.

Full-time|$145K/yr - $205K/yr|On-site|Denver, CO or Long Beach, CA

True Anomaly, Inc. develops technology at the intersection of spacecraft, software, and AI to support secure and sustainable access to space. The company’s mission centers on advancing the peaceful use of space, which impacts communications, logistics, and global security. With locations in Denver, CO and Long Beach, CA, True Anomaly supports the U.S., its allies, and commercial partners in protecting space infrastructure. Our Values Be the offset. Creativity and ingenuity drive unique advantages. What would it take? Challenging assumptions leads to ambitious results. It’s the people. The team’s collective strength fuels success. Role Overview The Senior Application Security Engineer will shape and audit security controls for critical space systems, ensuring alignment with strict government compliance standards. This role combines security engineering, compliance frameworks (including NIST 800-171 and 800-53), and cloud-native architectures to protect satellite mission control software and flight systems under Department of Defense protocols. What You Will Do Design and implement application-level security controls for mission-critical systems. Develop comprehensive audit logging, incident response, access controls, and security monitoring. Work closely with product engineering teams to integrate security practices into development and operations. Establish security protocols that directly impact national security space operations. Requirements Experience with security engineering and compliance frameworks (NIST 800-171/800-53). Background in modern cloud-native architectures. Ability to obtain and maintain a security clearance. This position is based in Denver, CO or Long Beach, CA.

Apr 14, 2026

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Enterprise Security Engineer

Compa

Full-time|On-site|Denver Office

Join our dynamic team at Compa as an Enterprise Security Engineer. In this pivotal role, you will be responsible for safeguarding our enterprise systems and data against security threats. You will leverage your expertise in security protocols, risk management, and incident response to enhance our security posture.This position demands a proactive approach to security, collaborating with cross-functional teams to implement robust security measures, conduct vulnerability assessments, and ensure compliance with industry standards. If you have a passion for cybersecurity and a commitment to excellence, we want to hear from you!

Feb 28, 2026

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Senior Kubernetes Security Engineer

True Anomaly, Inc.

Full-time|$160K/yr - $230K/yr|On-site|Denver, CO or Long Beach, CA

About True Anomaly True Anomaly, Inc. develops technology at the intersection of spacecraft, software, and artificial intelligence to support space security and sustainability. The company’s mission centers on ensuring peaceful and sustainable access to space, which underpins global communications, finance, navigation, and logistics. True Anomaly supports the U.S., its allies, and commercial partners by advancing capabilities that promote global security. Our Values Be the offset. Creativity and ingenuity drive our approach to building asymmetric advantages. What would it take? We question the status quo to achieve ambitious goals. It’s the people. Our team is our greatest strength, and collaboration fuels our success. Role Overview: Senior Kubernetes Security Engineer Location: Denver, CO or Long Beach, CA The Senior Kubernetes Security Engineer leads security for container orchestration at scale, supporting space operations. This position shapes zero-trust foundations and secure workflows, enabling platform and development teams to deploy safely on Kubernetes across multi-cloud environments. The role owns the security framework for container operations in production and influences teams managing containerized workloads company-wide. What You Will Do Design and build security platforms and frameworks for Kubernetes environments. Establish and maintain zero-trust security models. Develop secure deployment pathways for platform and development teams. Lead security initiatives and write production code daily. Guide complex security projects from start to finish with minimal oversight. Collaborate across teams to ensure secure containerized workloads in multi-cloud production settings. Operate within an AI-native environment, using AI tools to enhance your impact. Requirements Ability to obtain and maintain a security clearance. Hands-on experience with Kubernetes security in production, especially in multi-cloud environments. Technical leadership in designing and implementing security solutions for container orchestration platforms. Comfort with ambiguous, complex challenges and a record of driving projects to completion. Experience writing production code and leading strategic security initiatives. Familiarity with AI-driven workflows is expected.

Apr 14, 2026

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Information Security Engineer

StemXpert1

Full-time|On-site|Denver

Join StemXpert1 as an Information Security Engineer, where you will play a pivotal role in safeguarding our digital assets and ensuring the integrity of our systems. You will be responsible for identifying vulnerabilities, implementing security measures, and developing security protocols. Collaborate with cross-functional teams to foster a secure environment and contribute to our mission of providing cutting-edge solutions.

Oct 24, 2016

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Security Engineer

360 IT Professionals

Full-time|On-site|Denver

Join our dynamic team at 360 IT Professionals as a Security Engineer. In this role, you will be responsible for safeguarding our digital infrastructure, implementing robust security measures, and ensuring compliance with industry standards. You will work closely with cross-functional teams to identify vulnerabilities and deploy effective solutions to enhance our security posture.

Jun 12, 2017

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Senior Cloud Security Engineer at True Anomaly | Denver, CO or Long Beach, CA

True Anomaly, Inc.

Full-time|$145K/yr - $205K/yr|On-site|Denver, CO or Long Beach, CA

About True Anomaly True Anomaly develops technology at the intersection of spacecraft, software, and AI to support space security and sustainability. Our work helps the U.S., its allies, and commercial partners maintain secure, fair access to space. We aim to keep space sustainable for future generations. Our Values Be the offset. We use creativity and ingenuity to create unique advantages. What would it take? We challenge assumptions to reach ambitious goals. It’s the people. Collaboration and our team’s strength set us apart. Role Overview: Senior Cloud Security Engineer Location: Denver, CO or Long Beach, CA Cloud security at True Anomaly means more than compliance. The team secures infrastructure that supports space domain awareness and satellite operations. As a Senior Cloud Security Engineer, you will develop security tools and controls that help engineering teams safely deploy on cloud platforms. What You Will Do Implement security measures across multi-cloud environments, focusing on Azure and AWS. Work closely with engineers on architectural decisions to secure production workloads. Write production code daily and take ownership of cloud security projects. Develop cloud security solutions and tools to enforce protocols. Oversee projects from design through implementation, with guidance on architecture and strategy. Operate in an AI-native environment where using AI to enhance impact is encouraged. What We’re Looking For Expertise in Azure security is essential. Strong knowledge of AWS security, or willingness to deepen AWS skills as our cloud footprint grows. Hands-on experience developing and maintaining security controls and tools in cloud environments. Ability to obtain and maintain a security clearance.

Apr 14, 2026

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Staff Security Software Engineer

DigitalOcean

Full-time|$166.4K/yr - $208K/yr|On-site|Denver

Join DigitalOcean and take your career to new heights while working with an exceptional team committed to crafting the most user-friendly scalable cloud solutions. If you thrive in a fast-paced environment and possess a growth mindset, you’ll feel right at home here. We believe in achieving success collectively, while learning, enjoying our work, and making a significant impact for innovators and creators around the globe.Position Overview:We are seeking a passionate Staff Security Software Engineer who is focused on detecting and mitigating abuse within the cloud environment. In this pivotal role, you will be part of a vibrant team dedicated to transforming cloud computing and AI. Reporting to the Senior Manager of Security Engineering, you will leverage your experience in developing and maintaining software systems within a complex, high-scale environment. Your analytical skills will be key in communicating insights to stakeholders and crafting solutions that align with business objectives.Your contributions will be vital in ensuring DigitalOcean scales securely by creating systems that detect and prevent abuse on our platform. We highly prioritize collaboration and growth, working closely with various teams within the Security organization to deliver top-notch solutions and build tools that enhance efficiency.We understand the importance of trust; our customers rely on us to safeguard their data and operations, and we take this responsibility seriously. At DigitalOcean, security involves solving intricate problems on a large scale that have meaningful implications for our customers, our products, and the broader internet community.

Feb 5, 2026

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Manager of Security Defense Engineering

DigitalOcean

Full-time|On-site|Denver

Join DigitalOcean as the Manager of Security Defense Engineering, where you will lead a dedicated team focused on safeguarding our infrastructure and customer data. In this pivotal role, you’ll develop innovative security solutions, tackle complex security challenges, and collaborate with cross-functional teams to enhance our security posture.

Mar 18, 2026

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Manager of Mission Security Engineering

True Anomaly Inc.

Full-time|On-site|Denver, CO or Long Beach, CA

Join True Anomaly Inc. as a Manager of Mission Security Engineering, where you will lead our dedicated team in ensuring the security of critical missions. This role involves overseeing engineering initiatives, implementing security protocols, and collaborating with cross-functional teams to enhance mission safety.

Apr 8, 2026

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Senior Embedded Security Engineer - Flight Software

True Anomaly, Inc.

Full-time|$145K/yr - $205K/yr|On-site|Denver, CO or Long Beach, CA

True Anomaly, Inc. is advancing new technology for space security and sustainability. The team is growing in Denver, CO and Long Beach, CA, and seeks experienced engineers ready to solve complex challenges in spacecraft software and security. About True Anomaly True Anomaly builds technologies that combine spacecraft, software, and AI to strengthen the capabilities of the U.S., its allies, and commercial partners. The mission: keep space accessible and secure for all, supporting critical areas like communications, navigation, and logistics. Values Be the offset. Creativity and ingenuity drive asymmetric advantages. What would it take? The team pushes boundaries to reach ambitious goals. It’s the people. Success depends on a strong, collaborative team. Role Overview: Senior Embedded Security Engineer - Flight Software This role focuses on strengthening the security of software running on True Anomaly’s space vehicles. The Senior Embedded Security Engineer works alongside engineers from multiple disciplines to develop and secure flight software, meeting strict safety-critical standards. What You Will Do Collaborate with flight software engineers to integrate security best practices throughout the development lifecycle. Serve as a security subject matter expert for embedded software. Establish secure coding standards and design security testing frameworks. Guide the team in enforcing security controls for resource-constrained embedded environments. Implement and audit secure boot processes and firmware validation. Develop and review cryptographic implementations and runtime hardening measures. Create systems for memory safety, secret and key material management, and secure inter-process and inter-device communication. This position suits engineers who thrive at the intersection of embedded systems and security, enjoy solving technical problems in safety-critical environments, and want to shape the security architecture of future space systems. Early team members will have a lasting impact on spacecraft security and operations.

Apr 14, 2026

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Emergency Response Shelter Assistant

Essel Environmental

Temporary|$21/hr - $25/hr|On-site|Denver, Colorado, United States

Join Essel Environmental, a leading provider of essential services for high-profile projects across the USA. We are urgently seeking dedicated Emergency Response Shelter Assistants to support our team in Denver.The ideal candidates will thrive in outdoor environments and be prepared for long hours. Key responsibilities include: Directing traffic and managing material movement within the worksite. Assisting residents by guiding them to their sleeping areas and distributing essential items. Coordinating daily schedules for residents, ensuring they have access to necessary activities and services. Maintaining cleanliness by sanitizing assigned areas and managing waste disposal. Ensuring compliance with health protocols, including mandatory face mask usage for all residents.

Oct 2, 2023

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Information Security Engineer

StemXpert1

Full-time|On-site|Denver

Join StemXpert1 as an Information Security Engineer, where your expertise will help safeguard our systems and protect sensitive data. You will be instrumental in designing, implementing, and maintaining our security protocols, ensuring compliance with industry standards. This role requires a proactive approach to identifying vulnerabilities and responding to security incidents.

Jan 25, 2017

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Senior Personnel Security (PERSEC) Officer

True Anomaly, Inc.

Full-time|$145K/yr - $205K/yr|On-site|Denver, CO or Long Beach, CA

True Anomaly, Inc. develops technology to protect space as a strategic domain. The company builds autonomous spacecraft, advanced payloads, mission software, and space-based interceptors, supporting the U.S. and its allies in maintaining control of the space environment. This position is based in either Denver, CO or Long Beach, CA. Role overview The Senior Personnel Security (PERSEC) Officer manages True Anomaly’s personnel security program. This work supports the company’s national security mission and ensures compliance with the National Industrial Security Program (NISP) and related government regulations. The role is central to enabling secure, compliant operations for classified projects. What you will do Oversee and execute all aspects of the personnel security program Ensure compliance with NISP and applicable government requirements Work closely with teams in Industrial Security, Physical Security, IT Security, HR, Legal, and Program Management Facilitate efficient and ethical processing of cleared personnel Act as a technical leader and trusted advisor within the Security and Operations organization Identify risks and implement effective solutions to support secure business outcomes Values at True Anomaly Be the offset. Creativity and ingenuity drive the search for asymmetric advantages. What would it take? Challenges are embraced to reach ambitious goals. It’s the people. The team is the company’s greatest asset, and collective excellence is the standard.

Apr 29, 2026

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Senior Enterprise Security Engineer - Vulnerability Management

True Anomaly, Inc.

Full-time|$115K/yr - $165K/yr|On-site|Denver, CO or Long Beach, CA

About True Anomaly True Anomaly, Inc. develops technology for space security and sustainability. The team works at the intersection of spacecraft, software, and AI to support the U.S., its allies, and commercial partners. The company’s mission: ensure peaceful and sustainable access to space, which is vital for communication, finance, navigation, and logistics on Earth. Our Values Be the Offset. Innovate with creativity and ingenuity to create asymmetric advantages. What Would It Take? Challenge the status quo to achieve ambitious outcomes. It’s the People. The team is the competitive edge, and success comes from thriving together. Role Overview: Senior Enterprise Security Engineer – Vulnerability Management Location: Denver, CO or Long Beach, CA True Anomaly is hiring a Senior Enterprise Security Engineer focused on Vulnerability Management. This position plays a key role in identifying, tracking, and resolving vulnerabilities across the organization’s enterprise environment. The work covers endpoints, servers, cloud infrastructure, and applications. This engineer operates and improves the vulnerability management program, maintaining continuous visibility over the attack surface. The role involves close collaboration with senior engineers and cross-functional teams to assess risk, coordinate remediation, and monitor progress in reducing exposure. What You Will Do Drive the vulnerability management program, ensuring issues are identified and tracked through resolution. Maintain oversight of vulnerabilities across endpoints, servers, cloud, and applications. Work with other engineers and teams to assess risk and coordinate remediation efforts. Ensure timely patch deployment within established service level agreements (SLAs). Track exceptions and help develop strategies to minimize attack surfaces or automate patching. Bridge security findings with actionable steps and monitor progress toward reducing organizational risk. Who Thrives Here This role suits detail-oriented professionals who see issues through to resolution and want to help advance a core security function alongside experienced colleagues. The work environment is challenging and collaborative, with direct impact on the company’s security posture. Security Clearance Requirement This position requires the ability to obtain and maintain a security clearance.

Apr 14, 2026

Senior Software Engineer in Observability and Incident Response Management

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