Top Senior Cyber Security Jobs in Denver & Boulder, CO

Own and improve enterprise security platforms, cloud and infrastructure security, identity governance, endpoint protection, vulnerability management, incident response, network controls, and DevSecOps practices. Lead complex security initiatives, compliance controls, vendor assessments, security architecture reviews, and AI security governance. Build automation with PowerShell and Python, partner with IT Operations and DevOps, reduce manual work, and serve as the senior escalation point for technical security incidents.

Lead and grow a security engineering team to design and operate cloud-native security controls, drive DevSecOps practices, conduct threat modeling and incident response, partner cross-functionally on security roadmaps, and ensure compliance with frameworks (NIST, SOC 2, ISO, etc.). Responsible for vulnerability management, identity and access controls, observability/SIEM, and security automation.

Design, implement, and support enterprise identity and access management using Microsoft Entra. Build controls for Conditional Access, MFA, identity governance, privileged access, authentication modernization, and Zero Trust. Develop PowerShell automation for identity lifecycle and governance, partner with technical and business teams, improve security operations, and mentor engineers. The role also includes on-call participation and occasional after-hours work.

Build and operate security log pipelines, SIEM detections, endpoint controls, security automation, and internal tooling across AWS, macOS, Windows, CI/CD, and infrastructure repositories. Develop primarily in Python, implement Terraform-based infrastructure and policy-as-code safeguards, integrate security tools through APIs, and embed scanning and secrets detection into developer workflows. Own the reliability and coverage of security platforms while independently driving projects and implementing fixes directly in systems managed by other teams.

Lead and mentor a small IT security engineering team to deploy and operate enterprise-grade Zero Trust security across networks, endpoints, applications, and cloud. Drive Customer Zero initiatives, manage cross-functional security projects, optimize policies (SSL decryption, segmentation, access control), and serve as an internal subject-matter expert.

Provide cybersecurity engineering support for systems to achieve and maintain Authorizations to Operate (ATO). Validate security requirements and designs, perform technical security assessments, support RMF A&A documentation, incident response, risk management, and advise architects and PMs on secure implementations across the mission lifecycle.

Provide cybersecurity engineering support for space and mission systems: manage cyber requirements, validate technical security implementations, perform technical assessments, support RMF/A&A and authorization activities, assist incident response, advise architects on secure designs, and produce security documentation and risk mitigation strategies.

Senior security engineer responsible for developing automation and tooling, building and deploying security solutions, conducting incident response and proactive threat hunting, supporting investigations through data analysis, and advising development teams. Must document solutions, participate in agile teams, mentor juniors, and continuously research evolving security threats.

Lead AI security strategy and guardrails, design and review AI gateways and tooling, scale InfoSec review processes, reduce AI-driven security noise, drive remediation and investigations, and mentor security and platform engineers.

Lead system security engineering for aerospace/defense programs: define and validate cyber requirements, design secure systems (MBSE), manage A&A/ATO processes, integrate DevSecOps and cyber tools, perform risk assessments, and coordinate with stakeholders and program leadership.

Lead client engagements to design and implement secure network architectures (Zero Trust, SASE/SSE, segmentation, OT security). Manage teams, mentor staff, oversee enterprise network security configurations, and ensure project delivery and quality. Collaborate with clients to align security strategies with business objectives and drive innovation in network security practices.

The Staff Security Engineer will lead technical security initiatives, own architectural security decisions, mentor engineers, and align teams on security strategy while ensuring system integrity and compliance.

Leads the architecture, implementation, integration, automation, testing, and optimization of ServiceNow and Veza identity security solutions. Advises clients on identity governance, authorization visibility, access analytics, compliance, and cybersecurity strategy. Conducts workshops, demonstrations, training, troubleshooting, and technical delivery from discovery through deployment. Develops scripts, applications, dashboards, and workflows while mentoring junior staff and supporting proposals, estimates, and sales opportunities.

Architect and engineer multi-tenant SIEM, SOAR, EDR, telemetry, and cloud security platforms for managed security services. Build detection content, automate response workflows, optimize log ingestion, and secure customer connectivity. Lead technical discovery, onboarding, security assessments, remediation planning, escalations, solution design, and customer advisory engagements. Create architectures, runbooks, and documentation while shaping the MSSP technology strategy.

Own security and infrastructure for a fintech payments platform, with security comprising roughly two-thirds of the role. Responsibilities include cloud and application security, IAM, secrets management, threat modeling, detection engineering, incident response, vulnerability management, compliance, privacy, CI/CD, infrastructure as code, observability, reliability, backups, disaster recovery, and on-call operations. The role reports to the CTO and will establish the security function as the company’s founding security hire.

Lead enterprise AI security architecture, strategy, governance, and secure-by-design implementation across cloud, hybrid infrastructure, software, and AI/ML environments. Design security patterns for LLM hosting, agentic systems, vector databases, and inference endpoints; translate regulatory requirements into technical standards; review complex architectures; implement AI security guardrails and policy enforcement; advise engineering and product teams; and mentor teams while influencing senior stakeholders.

Designs, implements, and sustains cybersecurity capabilities across enterprise and mission systems. Performs continuous monitoring, vulnerability scanning, SIEM analysis, technical security assessments, control validation, risk prioritization, and remediation leadership. Engineers security controls into virtualized platforms, shared storage, and mission networks while troubleshooting Linux and Windows servers, endpoints, Cisco devices, and enterprise file systems. Ensures compliance with NIST, CNSS, DISA STIG, and related security frameworks.

Leads and supports offensive security consulting engagements, including network, web application, wireless, social engineering, red team, and purple team testing. Evaluates controls and security configurations, performs cybersecurity assessments, recommends remediation, and presents findings to technical and executive stakeholders. Supports client program execution, metrics, issue remediation, and continuous improvement. Mentors junior consultants and contributes to cybersecurity practice development, methodology innovation, and thought leadership.

Lead pre-sales security architecture engagements by designing and validating defense-in-depth solutions across hybrid, cloud, application, identity, endpoint, network, and data environments. Conduct security assessments, create remediation roadmaps, integrate security platforms, and support DevSecOps, SOC, detection engineering, incident response, compliance, and risk programs. Collaborate with sales, engineering, clients, and executive stakeholders to communicate technical trade-offs and deliver scalable enterprise security strategies.

Designs, implements, administers, and improves enterprise cybersecurity controls across endpoints, identities, cloud, email, networks, and applications. Investigates incidents, leads vulnerability management, performs architecture reviews and risk assessments, supports audits and compliance, and develops security standards, playbooks, documentation, and automation. Provides technical leadership and mentoring while aligning security practices with HIPAA, HITRUST, NIST, PCI DSS, and related requirements.

Designs, implements, and operates SASE and ZTNA architecture across GCCH and commercial environments. Owns identity-driven access controls, session management, telemetry, compliance mapping, dashboards, and audit evidence. Serves as the senior escalation point for incidents, performs root-cause analysis, integrates device posture and SOAR workflows, develops AI-enabled automations, collaborates with identity, network, compliance, and vendors, and mentors junior engineers.

Design, develop, and maintain Windows-focused PAM components including services, agents, and RDP handlers. Integrate with Windows APIs, authentication and privilege models, implement secure credential handling and policy enforcement, collaborate with backend teams, perform code reviews, and troubleshoot complex Windows OS and enterprise configurations.

Owns the company-wide IT and cybersecurity program, including SOC 2 compliance, cloud security, penetration-test remediation, business continuity testing, endpoint management, access controls, onboarding and offboarding, AI security governance, vendor reviews, security training, incident response, and employee IT support. The role partners with engineering, HR, Finance, leadership, auditors, and healthcare customers while managing security across AWS, Heroku, Cloudflare, Google Workspace, GitHub, and related tools.

Build and automate security infrastructure across AWS and Kubernetes, including cryptographic material lifecycle, telemetry pipelines, policy-as-code, compliance monitoring, and incident-response tooling. Develop agentic AI workflows using coding assistants, MCP integrations, and custom harnesses. Apply threat modeling and secure architecture review while partnering with engineering, risk, auditors, vendors, and clients. The role emphasizes production software, cloud-native automation, continuous control monitoring, and eliminating manual security toil.

Build and operate a reliable security platform across hundreds of AWS environments. Responsibilities include security telemetry and OpenSearch infrastructure, GitOps deployments, Kubernetes and AWS security controls, cross-account and multi-region architecture, Python automation, and agentic AI workflows. The role participates in on-call support, security incident enablement, audit evidence automation, and reliability improvements while collaborating with Security Operations, Risk, and SRE teams.