Top Security Engineer Jobs

Manage and implement McAfee antivirus and endpoint security solutions. Configure and operate McAfee Endpoint DLP, HIPS, and Symantec endpoint encryption (PGP). Define SLAs, SOPs, and remote infrastructure management. Handle incident and change management via ticketing tools, lead a team, interact with customers, and support 24x7 operations.

Design, implement, and maintain network security solutions (firewalls, IDS/IPS, proxies, routers). Investigate security incidents, develop countermeasures, manage security policies, perform risk analysis, and support customer change requests and remediation.

Design and build security-focused tools, automate security workflows within the product using Python and Go, maintain Terraform-based range infrastructure and virtualization for testing, integrate diverse security tools, collaborate with cross-functional teams, communicate security features to non-security stakeholders, and work directly with end users to meet operational needs.

Lead administration, security, and lifecycle operations of Cisco-based network infrastructure. Manage firewalls, access controls, VPNs, WAFs, DDoS/protection, telemetry, and cloud security. Perform upgrades, incident response, vulnerability remediation, automation, documentation, and mentor junior staff while collaborating on secure hybrid cloud and datacenter architectures.

Provide security architecture design and consulting, lead implementation projects, perform on-site and remote technical implementations, handle work orders, change requests, and incidents, and research and oversee IT security systems and policies to support business needs.

Lead embedded security for vehicle platforms: assess product security, establish and maintain secure boot, integrate HSMs and key management, maintain BSPs, apply cryptographic standards, and collaborate with software/hardware/QA/product teams to embed security across the product lifecycle.

Serve as security engineering representative on teams to design, implement, evaluate, and integrate IA architectures, secure networking, computing, and enclave environments. Apply IA policy and procedures, support security planning, assessment, risk analysis/management, identify data handling requirements, and enforce trusted relationships with external systems while interacting with customers and project teams.

Design, implement, and maintain network security solutions (firewalls, IDS/IPS, proxies, VPNs). Perform advanced Layer 3/4 packet analysis, investigate security incidents, manage policies, troubleshoot complex network issues, and support client remediation and change requests.

Design, implement, and maintain security controls across cloud, on-prem, air-gapped and classified environments. Support monitoring, detection, incident response, vulnerability management, IAM, secure SDLC, and GRC activities including audit readiness and NRC/classified facility support.

Designs, deploys, and manages information security systems (firewalls, IPS/IDS, SIEM, WAF, IAM). Performs vulnerability scanning, incident response, audits, protocol analysis, and security consulting. Develops BCP/DR plans, researches new technologies, and collaborates with legal, HR, and law enforcement on investigations.

Build and operate an internal Red Team to continuously find vulnerabilities across protocol, consensus, bridges, and execution clients. Develop Rust-based fuzzers and custom security tooling, simulate economic attacks on testnet, analyze game-theoretic risks (MEV, staking), and partner with engineering teams to review critical architecture and mitigate exploits.

Design, implement and maintain network security solutions (firewalls, IDS/IPS, proxies, VPNs) for customer networks; perform packet analysis, incident identification and remediation support; manage security policies, encryption and network device configurations; document processes and deliver billable project work on schedule.

Support STARE Product Office cybersecurity activities at Redstone Arsenal: manage ATO/A&A packages, assess system confidentiality/integrity/availability, enforce DoD/Army CS standards, coordinate RMF and eMASS activities, prepare briefings, support security testing, and liaise with program offices. Approximately 25% travel.

Designs, implements, and maintains Palo Alto-based secure network access for enterprise customers. Migrates legacy firewalls, builds security policies, troubleshoots via log/packet analysis, supports SD‑WAN/remote access, mentors on upgrades, and collaborates with network, cloud, and operations teams. Provides on-call support and ensures deliverables meet project scope.

Support and secure mainframe production environments. Manage data center technologies, maintain/enhance security infrastructure, work with mainframe tools (Tivoli, Omegamon), TSO/MVS/JCL operations, RACF/CA-Top Secret, and collaborate with third-party mainframe vendors.

Provide security oversight for network and mainframe systems, conduct security auditing, risk assessments and penetration testing, evaluate security architecture, recommend hardware/software, support disaster recovery testing and documentation, and help create and review information security policies and standards.

Implement, install, and configure SIEM (IBM QRadar); perform vulnerability assessments and Qualys scanning; manage assets via Remedy; design and document network/security architecture; work with Cisco and Check Point firewalls and F5 load balancers; ensure PCI compliance and scan processes; train staff on QRadar when needed.

Designs and implements multi-vendor network security solutions (firewalls, IDS/IPS, proxies, VPNs). Maintains and troubleshoots network security infrastructure, performs packet analysis, evaluates risks, produces process documentation, and supports incident identification and remediation to protect telecommunications and client networks.

Designs, deploys, and maintains information security systems (firewalls, SIEM, IDS/IPS, WAF), performs audits, incident response, vulnerability management and penetration testing, develops access controls and BCP/DR plans, and advises stakeholders on security risks and remediation.

Embed security into product design and development lifecycle: perform architecture reviews and threat modeling, run AI-assisted and manual security assessments, mature vulnerability management, guide developers on secure coding, support incident response, and automate SAST/DAST and CI/CD security tooling across cloud and on-prem environments.

Design, implement, and maintain network security solutions (firewalls, IDS/IPS, proxies, VPNs). Perform advanced packet analysis, incident identification and remediation, router/switch management, risk analysis, and produce process documentation. Support customer projects, troubleshoot complex connectivity issues, and stay current on network security trends.

Lead the security function end-to-end at an early-stage B2B fintech: drive application and product security, threat modeling, secure design and code review, vulnerability remediation, cloud and Kubernetes hardening, logging and detection, incident response, and SOC 2 foundations. Define roadmap, embed security into engineering, and partner with teams to build secure-by-default products.

Lead design, implementation, and management of enterprise network security across global offices. Manage firewalls, routers, switches, patch and vulnerability remediation, SIEM/incident escalation, cloud security, and vendor interactions. Drive vulnerability assessments, CVE research, patch processes, documentation, and cross-team remediation efforts to protect systems and applications.

Design, implement, and maintain security systems (DLP, SIEM/UEBA, endpoint protection). Conduct threat and vulnerability assessments, lead incident detection/response and forensics, improve monitoring, audit for compliance, support end users, participate in on-call rotation, and produce security reporting and recommendations.

Own and implement security measures across cloud infrastructure and the software lifecycle: threat modeling, risk assessments, security testing, incident response, secure CI/CD, and developer enablement to remediate vulnerabilities and ensure compliance with standards.