Top Cyber Security Jobs in St. Louis, MO

Owns company-wide security operations, cloud and infrastructure security, incident response, zero-trust architecture, blockchain treasury controls, compliance, privacy, production reliability, Terraform, CI/CD, observability, disaster recovery, and on-call operations. This hands-on leadership role reports to the CTO, represents the company to auditors and customers, and builds security automation across GCP, Cloudflare, GitHub, Google Workspace, and Ethereum infrastructure.

Lead and manage the information security and risk management function, overseeing staff, policies, projects, budgets, and security technology. Drive compliance with corporate and regulatory standards, deliver training and awareness, coordinate audits, and collaborate with stakeholders to implement security strategies and continuous process improvements.

Lead enterprise data security architecture to protect sensitive data across its lifecycle. Define strategies for encryption, key management, tokenization, masking, DLP, classification, database security, and Zero Trust. Advise execs and engineering on secure design patterns for data platforms (e.g., Starburst), cloud/on-prem systems, APIs, data pipelines, and AI/ML workloads. Develop roadmaps, evaluate technologies, mentor staff, and drive secure-by-design adoption across the organization.

Develops, deploys, configures, and maintains network security tools across on-premise and cloud environments supporting NGA networks. Responsibilities include managing IDS/IPS, NDR, packet capture, email security, and network visibility platforms; troubleshooting network protocols; maintaining architectures and inventories; evaluating emerging technologies; recommending upgrades; and briefing leadership. Requires active TS/SCI clearance, DoD cybersecurity certifications, and the ability to obtain a CI polygraph.

Designs, deploys, maintains, and improves enterprise endpoint security platforms and controls. Responsibilities include threat analysis, security event triage, endpoint infrastructure tuning, vulnerability management, policy enforcement, compliance reporting, technical documentation, and technology evaluations. The role supports security projects, mentors junior staff, collaborates with IT and leadership, and helps strengthen protection against emerging cyber threats across the enterprise.

Build and scale backend security platform services, including authentication, authorization, identity infrastructure, permission systems, and data models. Lead cross-team technical initiatives, standardize security solutions, collaborate with compliance and mission stakeholders, and influence architecture and engineering standards. The role requires strong system design, backend development, security expertise, technical leadership, and the ability to operate in sensitive environments.

Leads secure enterprise architecture design and GitLab Professional Services implementations across application security, cloud security, DevSecOps, identity, vulnerability management, and compliance. Guides SaaS, Self-Managed, and Dedicated deployment decisions; leads CI/CD, source control, and security-tool migrations; conducts risk assessments and threat modeling; supports pre-sales scoping and statements of work; coordinates cross-functional delivery; mentors consultants; and develops security enablement materials.

Lead Pomelo Care’s enterprise security governance, risk, and compliance program. Own SOC 2 Type II and HITRUST certification lifecycles, security policies, access governance, HIPAA risk assessments, awareness training, control monitoring, incident response, and third-party risk assessments. Partner with engineering leadership to align technical roadmaps with security strategy, represent the company during audits and partner due diligence, and report security posture and program maturity to executives.

Lead complex security investigations across endpoint, identity, cloud, email, SaaS, and network environments. Own incidents through containment, remediation coordination, documentation, and post-incident review. Tune detections, queries, dashboards, workflows, and SOAR playbooks; improve SOC metrics, threat coverage, alert fidelity, and response processes. Partner on vulnerability and cloud-risk remediation, participate in global on-call rotation, use approved AI capabilities responsibly, and mentor analysts.

Provides technical leadership for enterprise AI security, designing secure AI platform architectures, vetting frameworks, identity and posture management for AI agents, and preventative security guardrails. The role requires building scalable security systems with Python, Go, or Java, managing infrastructure as code, addressing cloud and container security, mentoring engineers, and advising leadership on AI security risks.

The Senior Security Engineer architects, implements, and supports enterprise security capabilities across vulnerability management, cloud security, identity, endpoint, application security, and security architecture. The role leads security initiatives, resolves complex platform issues, develops automation and AI-assisted workflows, establishes documentation and reporting standards, and mentors security engineers and analysts while partnering across infrastructure, application, network, cloud, and security teams.

Leads the company’s information security operations and reports to the CISO. Oversees SIEM, threat detection, vulnerability management, penetration testing, incident response, SOC 2 Type II compliance, third-party risk, security awareness, cloud and endpoint security, and regulatory cybersecurity coordination. Manages security policies, breach readiness, tabletop exercises, KPIs, audits, and emerging technology evaluations while partnering with IT, infrastructure, compliance, regulators, and executive leadership.

Designs, deploys, troubleshoots, and supports enterprise network and security infrastructure, including routing, switching, firewalls, wireless, cloud networking, VPNs, and data center services. The role analyzes operational incidents, implements remediation, maintains documentation, communicates with management, supports roadmap decisions, and participates in on-call rotations. It requires extensive experience with multi-vendor network security technologies, cloud platforms, and customer-facing technical work.

Leads cybersecurity consulting engagements for large, complex organizations, overseeing project delivery, client relationships, security strategy, governance, risk management, proposals, statements of work, and business development. Provides thought leadership, advises senior stakeholders, guides cybersecurity solutions and emerging-threat initiatives, supports sales growth, and mentors junior team members. Travel up to 25% is required.

Perform advanced security monitoring, threat hunting, incident investigation, and triage across endpoint, server, and network environments. Analyze SIEM and endpoint data, identify indicators of attack and compromise, map customer use cases to MITRE ATT&CK, scope incidents, provide recommendations, maintain documentation, and participate in an after-hours incident-controller rotation.

Lead enterprise-wide security compliance and regulatory authorization initiatives across global cloud environments. Architect unified control frameworks, map controls to federal, defense, international, and commercial standards, manage audits and assessments, coordinate evidence and remediation, and communicate compliance risks to executives, government stakeholders, assessors, and defense agencies. Drive continuous monitoring and recurring audit readiness across multiple compliance lifecycles.

Leads enterprise infrastructure, end-user computing, cybersecurity, IT risk management, data security, compliance, disaster recovery, and service management. Develops technology and security strategies, oversees networks, cloud and storage environments, manages security incidents and risk remediation, ensures regulatory compliance, directs technology teams, manages vendors and budgets, and advises senior business leaders.

Designs and integrates secure information systems, cloud, and defense architectures; leads federal NIST RMF and ATO processes; implements security controls; performs vulnerability, threat, and risk assessments; advises engineering and program teams; and manages continuous monitoring, compliance, audit, and patch-management activities.

Monitor, investigate, triage, and respond to security events across customer environments. The analyst examines endpoint, network, identity, cloud, and log telemetry; supports incident containment and remediation; documents investigations; communicates with customers; escalates high-risk incidents; and improves detection, automation, and security operations processes.

Build and maintain custom security tools, middleware, automation, APIs, integrations, dashboards, and security workflows. Integrate identity, endpoint, SIEM, SaaS, and other security platforms using APIs, cloud services, containers, and CI/CD. Translate security policies into secure, code-driven solutions while supporting SOAR, continuous monitoring, compliance, and cross-functional collaboration.

Lead the creation and growth of a new OT/IoT cybersecurity practice, owning its P&L, offerings, pricing, partnerships, hiring, delivery quality, and go-to-market strategy. Serve as a senior technical SME and trusted advisor for client assessments, regulatory compliance, executive workshops, roadmaps, and security engagements. Shape and close consulting opportunities, develop methodologies and deliverables, manage teams, and advise organizations on ICS/SCADA, segmentation, monitoring, IT/OT convergence, and AI-related risks.

Own Hightouch’s application security posture as the first dedicated security hire. Secure multi-tenant systems, sub-tenant access controls, distributed architecture, internet-facing APIs, and multi-region, multi-cloud infrastructure. Lead threat modeling, compute isolation, rate limiting, abuse detection, authorization, privacy controls, and security program initiatives. The role is highly hands-on, emphasizing code-level fixes, architecture influence, roadmap ownership, and collaboration with engineering teams.

Leads technical security sales engagements through demonstrations, proofs of concept, hackathons, architecture workshops, and customer consultations. Designs secure, scalable cloud and hybrid architectures, resolves technical blockers, and advises customers on Microsoft Security solutions, including Defender and Sentinel. Develops security posture recommendations, supports XDR, zero trust, cloud security, and AI adoption strategies, while influencing technical decisions and representing Microsoft in developer communities.

Partners with engineering teams to identify and remediate product security risks across the software development lifecycle. Responsibilities include threat modeling, secure architecture and coding guidance, security testing, vulnerability prioritization, penetration testing coordination, bug bounty remediation, application monitoring, developer training, and secure deployment practices. The role also advances AI-assisted security tooling, DevSecOps practices, security champions, Kubernetes and container security, and scalable risk-based remediation frameworks.

Own product and infrastructure security across fintech products and cloud environments. Lead threat modeling, architecture reviews, secure code reviews, vulnerability management, bug bounty operations, CI/CD security scanning, IAM and secrets management, and security standards. Partner directly with engineering leadership to identify and remediate critical vulnerabilities across backend services, APIs, frontends, Solana programs, and infrastructure.