Top Security Engineer Jobs

Monitor emerging vulnerabilities, assess exploitability and business risk, prioritize remediation, and develop vulnerability intelligence frameworks. Implement asset detection and monitoring across cloud and data-center environments, maintain vulnerability management KPIs, communicate security posture to technical and executive stakeholders, use CrowdStrike Falcon capabilities, and build security tooling. The role requires scripting, threat intelligence research, cloud and Linux experience, cross-functional collaboration, and AI-enabled workflow improvements.

Lead infrastructure security for GitLab’s FedRAMP and federal cloud environments. Set technical direction, architecture, security automation, and compliance patterns; own security posture; lead threat modeling, security reviews, continuous monitoring, and authorization-impacting initiatives. Partner with SRE, engineering, compliance, and leadership to drive remediation and roadmap decisions. Apply AI to constrained security workflows, mentor engineers, and influence security practices across GitLab offerings.

Develops and sustains cybersecurity requirements, secure architectures, risk assessments, security controls, and cyber-resiliency solutions for embedded avionics systems across their lifecycle. Coordinates with systems, software, hardware, and product-security teams; performs threat and adversity analysis; supports certification and customer artifacts; leads security processes, risk-reduction activities, planning, and cross-functional collaboration. The role is fully onsite in Missouri, requires up to 10% travel, and requires obtaining and maintaining an active U.S. Secret clearance.

Lead reliability and operational engineering for enterprise network security platforms (firewalls, proxy, NAC, WAF, ZTNA/SASE). Define reliability strategy, drive automation, observability, post-incident remediation, policy governance, and cross-functional architecture to reduce risk, improve availability, and harden controls for business-critical security services.

Design, deploy, automate, and maintain cryptographic security products, appliances, and services across physical, virtual, and containerized environments. Develop monitoring and synthetic transactions, support audits and compliance remediation, manage incidents and root-cause analysis, evaluate new products, document technical processes, and provide production/on-call support. The role also requires collaboration across teams, agile participation, and expertise in encryption, tokenization, key management, Linux administration, automation, and security technologies.

Design, deploy, automate, and maintain cryptographic security appliances and services across physical, virtual, and containerized environments. Support encryption, tokenization, key management, monitoring, audits, upgrades, incident management, and root cause analysis. Develop documentation and synthetic monitoring transactions, evaluate new products, provide on-call production support, and collaborate across enterprise teams using Agile Scrum and Kanban practices.

Design, deploy, automate, and maintain cryptographic products, security appliances, encryption, tokenization, and key management services across physical, virtual, and containerized environments. Develop monitoring and synthetic transactions, support audits and compliance remediation, provide production and on-call incident support, perform root cause analysis, document technical processes, evaluate products, and collaborate within Agile Scrum or Kanban teams.

Lead reliability strategy and engineering for enterprise network security platforms (firewalls, proxy, NAC, WAF, ZTNA/SASE). Drive incident response, automation, observability, policy governance, operational readiness, vendor management, and cross-functional architecture influence to improve availability, reduce repeat incidents, and strengthen control maturity.

Lead strategy and hands-on engineering to improve reliability, security posture, automation, observability, and incident response for enterprise network security platforms (firewall, proxy, NAC, WAF, ZTNA/SASE). Drive policy governance, operational readiness, vendor management, and cross-functional influence to reduce risk and improve service stability.

Lead reliability and security engineering for enterprise network security platforms, including firewalls, proxies, NAC, WAF, ZTNA, SASE, and segmentation. Drive platform strategy, policy governance, observability, automation, incident response, root-cause remediation, operational readiness, architecture improvements, vendor escalations, and change reliability. Partner across cybersecurity, cloud, infrastructure, applications, risk, compliance, and architecture teams while mentoring engineers and influencing senior stakeholders.

Lead cloud security engineering efforts across network ingress and egress, including architecture, automation, deployment, monitoring, infrastructure as code, and security orchestration. Develop Java, Python, or Go solutions using AWS and Terraform; implement WAF and cloud security controls; conduct threat modeling, vulnerability analysis, and penetration testing. Collaborate with technology and business stakeholders, triage risks, ensure compliance, and validate AI-assisted security recommendations for resiliency, traceability, and auditability.

Leads technical direction for Remitly’s Security & Privacy organization while remaining hands-on in software and security engineering. Designs and ships agentic security platforms, automations, and controls across application, infrastructure, identity, privacy, governance, and risk domains. Advises executives and engineering leaders, advances secure design, balances security with business velocity, and mentors engineers. Requires deep expertise in application security, AI development, cloud security, IAM, cryptography, and production-scale software engineering.

Leads threat hunting, detection engineering, incident response, vulnerability management, and security platform ownership across endpoint, identity, network, cloud, application, and SaaS environments. Designs and operates security controls, automates workflows using scripts and APIs, manages incident response and assessments, improves network security, establishes metrics, and supports compliance with NIST, ISO 27001, SOC 2, and financial-services requirements. Mentors junior staff and advises cross-functional teams.

Lead enterprise IAM and AI access security engineering across Okta, GCP, AWS, and IGA platforms. Replace low-code automation with tested Python services, codify identity infrastructure using Terraform/OpenTofu/Pulumi, implement least-privilege and privileged-access controls, govern human and non-human identities, and secure enterprise AI platforms. Drive cross-functional initiatives, develop technical roadmaps and proposals, support compliance, and mentor engineers.

As a Security Engineer, you'll develop and deploy security controls for cloud workloads, ensuring compliance and working collaboratively with teams on automation and security assessments.

Leads security content operationalization, SIEM development, security event detection, log correlation, threat hunting, vulnerability assessment, and complex security solution design. Provides consulting on enterprise projects, recommends remediation, leads teams, and communicates technical findings to stakeholders. Uses AI-assisted tools responsibly for development, testing, analysis, and troubleshooting while addressing security, compliance, privacy, and ethical risks.

Leads security content operationalization, SIEM development, detection engineering, log correlation, vulnerability assessment, risk analysis, and complex security solution design across networks, endpoints, cloud, applications, authentication, and cryptography. Provides internal security consulting, leads teams, resolves issues, and communicates recommendations to stakeholders. Uses AI-assisted development responsibly while addressing security, compliance, privacy, and operational risks.

Support C2BMC network security by planning, deploying, integrating, and testing network upgrades; develop cyber-secure device configurations, ensure STIG hardening and DoD RMF compliance, conduct research, document designs, run cyber protocols, and assist during operational events.

Design and develop secure, resilient full-stack systems and microservices using Java or Python and AWS. Build digital asset custody components, blockchain integrations, APIs, and cloud applications across the software development lifecycle. Create architecture artifacts, troubleshoot production issues, analyze data, and improve reliability. Lead responsible adoption of AI-assisted engineering tools for coding, testing, reviews, refactoring, and incident analysis while coaching teams on secure, compliant practices.

Lead AI/ML security architecture and engineering initiatives, clarify security requirements across multiple networks, assess and triage threats, manage disruptive-event response resources, and recommend risk-based business modifications. Build enterprise security solutions through hands-on coding, threat modeling, vulnerability assessment, penetration testing, cloud-native development, and security integration into CI/CD workflows.

Triage security alerts from SIEM, EDR, email, and other sources; support users with security issues; investigate suspicious activity; escalate incidents; document resolutions; and collaborate with IT, compliance, and security teams. The role also identifies recurring patterns and process gaps, improves detections and workflows, evaluates automation opportunities, and uses approved AI tools to streamline security operations.

Under supervision, evaluate and test security of embedded, cloud, web, and mobile applications by performing sophisticated attacks, vulnerability analysis, and product-level assessments. Collaborate with customers to deliver technical reports with findings and remediation recommendations, contribute to internal R&D on attack techniques, and maintain technical knowledge through training and professional activities.

Design, integrate, and verify anti-tamper/product security solutions for embedded computing assets across defense platforms. Develop requirements, test plans, documentation, and collaborate with platform engineers and customers to field hardware/software protections, including cryptography, secure communications, reverse engineering, and FPGA-based mitigations. Must support development through verification and fielding.

Supports Boeing defense product security and anti-tamper programs across system integration and software development. Responsibilities include defining requirements and architectures, developing software designs and features, creating test plans and procedures, participating in verification, and collaborating with DOD customers, suppliers, and engineering stakeholders. The role spans hardware and software domains and is fully onsite in the greater St. Louis area.

Assess product and feature security risks through threat modeling, secure architecture reviews, and vulnerability remediation guidance. Partner with product managers, designers, and engineers across the technology stack; promote security culture through training, mentoring, and internal security activities; oversee security debt and explain vulnerability impacts. Build security tooling, automate security practices, develop secure coding patterns, and integrate security tools into engineering workflows.