Top Security Engineer Jobs

Lead security architecture for a secure multi-cluster service mesh platform. Design authentication, authorization, tenant isolation, encryption, credential lifecycle, and service-to-service trust. Establish secure development patterns, threat modeling, testing, security quality gates, incident response, vulnerability discovery, and compliance practices. Implement and review Go and gRPC security systems, mentor engineers, guide technical direction, and collaborate with customers and cross-functional teams. Requires international travel to the Middle East and geopolitical hot zones up to 25% annually.

Develops and validates hardware and software security solutions for DoD sensor payloads and mission systems. Responsibilities include systems security architecture, requirements development, anti-tamper and cybersecurity implementation, reverse engineering, security testing, RMF compliance, technical release analysis, exportability assessments, cryptographic protection, A&A documentation, and POA&M maintenance. The role collaborates with government, program, business development, and international stakeholders and provides technology-release training. This is a full-time, on-site position in Rolling Meadows, Illinois.

Develop and integrate hardware and software anti-tamper and cybersecurity solutions for DoD sensor, targeting, and electronic warfare systems. Perform secure architecture, requirements development, security testing, validation, reverse engineering, risk management, technical release analyses, exportability assessments, and compliance with U.S. Government security policies. Support Assessment and Authorization, Security Plans, POA&Ms, technology release training, cryptographic security, and collaboration with government and international program stakeholders.

Lead the design, modernization, and operation of large-scale enterprise identity and directory platforms. Responsibilities include engineering multi-domain Active Directory environments, integrating Entra ID and other cloud identity services, strengthening authentication and access management, improving reliability and security, resolving complex escalated issues, developing automation, and establishing architectural standards. The role partners with security, infrastructure, and platform teams to build scalable IAM capabilities across global, hybrid environments.

Support enterprise security sales by identifying customer requirements, demonstrating Datadog security solutions, providing technical expertise during evaluations and proof-of-value initiatives, and developing proposals and sales materials. The role partners with sales, product, and engineering teams, tracks security trends and vulnerabilities, influences product development, and represents Datadog at industry events. Travel up to 30% is required.

Drive adoption of Datadog security solutions in strategic enterprise accounts. Partner with sales teams to understand customer requirements, conduct technical demonstrations, support evaluations and proof-of-value initiatives, develop proposals, and provide technical expertise throughout the sales cycle. Maintain expertise in security products, vulnerabilities, cloud platforms, SIEM, SOC workflows, endpoint security, and application security. Relay customer feedback to product and engineering teams and participate in industry events with up to 30% travel.

Lead cloud security strategy across AWS, GCP, Kubernetes, and self-managed systems. Define security standards, reference architectures, threat-modeling practices, IAM controls, detection engineering, incident response, vulnerability management, and secure infrastructure pipelines. Serve as a senior technical leader, mentor engineers, guide cross-functional initiatives, and develop scalable security controls and playbooks. The role requires production cloud security ownership, hands-on AWS, GCP, Kubernetes, Python, and Terraform experience.

Provides technical leadership for cloud security across AWS, GCP, Kubernetes, and self-managed infrastructure. Defines security standards, reference architectures, threat-modeling practices, IAM controls, detection strategies, incident-response playbooks, vulnerability management, and Kubernetes security standards. Leads cross-functional initiatives, mentors engineers, secures infrastructure-as-code and CI/CD pipelines, and investigates cloud security incidents. This is a senior individual contributor role requiring production cloud security ownership and hands-on coding in Python and Terraform.

Provides information systems security engineering for complex, geographically distributed systems. Responsibilities include designing security architectures, validating requirements, assessing and mitigating risks, applying the Risk Management Framework, conducting vulnerability and security testing, auditing configurations, supporting certification and continuous monitoring, enforcing security policies, and collaborating with engineering, development, integration, test, program management, and customer teams.

Develop Go-based microservices and REST APIs for CrowdStrike's Cloud Security Posture Management platform. Own end-to-end delivery, follow engineering best practices, use event-driven workflows (Kafka), and store data in Cassandra/Elasticsearch/Postgres. Operate production services (on-call), deploy containers in Kubernetes with Helm, and work with cloud providers and infrastructure-as-code tools to secure cloud workloads.

Design, implement, and manage enterprise security solutions to protect users, infrastructure, and SaaS applications. Investigate malware and advanced threats, run forensics and incident response, tune SIEM detections, deploy DLP and automation, secure endpoints and IAM/SSO, perform vulnerability remediation and security reviews, and mentor junior staff. Participate in on-call rotations and collaborate cross-functionally to improve security architecture and enforce policies.

Design, implement, and manage enterprise security solutions including endpoint, network, SaaS, and cloud protections. Investigate malware and advanced threats, expand SIEM detections, deploy DLP, perform forensics and vulnerability remediation, secure IAM/SSO/MDM, automate detections and reporting, participate in on-call incident response, and mentor junior security engineers.

Lead design, implementation, and operational management of enterprise security controls: investigate malware and threats, expand SIEM detections, deploy DLP, secure SaaS and endpoints, harden configurations, run forensics and incident response, automate detections and reporting, and mentor junior engineers while participating in on-call rotations.

Protect employees, assets, and locations by designing and operating enterprise security infrastructure. Investigate malware and advanced threats, implement DLP, secure SaaS and endpoints, harden configurations, expand SIEM detections, perform forensics and vulnerability remediation, automate detections and reporting, guide security reviews, mentor junior staff, participate in on-call incident response, and recommend security architecture and tooling improvements.

Lead expansion and maintenance of a Zero Trust security program across hybrid on-premises and cloud environments. Manage identity and access controls, deploy and tune SIEM/EDR/XDR/IAM tooling, automate security operations, reduce alert fatigue, and collaborate with IT, DevOps, and business teams to strengthen enterprise security across endpoints, cloud, SaaS, identity, network, and data protection.

Lead architecture and implementation of AI-security products, define technical direction, drive cross-team initiatives, design secure scalable backend systems, and address systemic risks while remaining hands-on in coding, prototyping, and debugging.

The Senior Security Engineer will design and implement data protection solutions, manage security incidents, and ensure compliance in a fintech setting.

Plan and execute red team operations, build offensive tools, improve efficiency with automation and AI, and collaborate with security teams.

Lead product security architecture and security-by-design across the product lifecycle. Embed security into SSDLC and DevSecOps, perform threat modeling and risk assessments, define controls for AI/ML products, manage post-market surveillance, oversee penetration and advanced testing, support incident response, partner with cross-functional stakeholders for regulatory compliance, track security metrics, and mentor other engineers.

Responsible for managing operations within classified environments, overseeing cloud infrastructure, automating tasks, and ensuring system stability in a high-security setting.

Lead development of secure Identity and Access Management solutions: design, build, test, and stabilize production systems. Drive automation, CI/CD, cloud-native and AI-assisted engineering adoption, lead vendor evaluations, mentor teams on secure coding, authentication/authorization, RBAC/ABAC, and operational resilience.

Lead technical contributor on Identity and Access Management teams building secure, scalable applications. Designs and develops production code, drives automation and CI/CD, enforces authentication/authorization/encryption, adopts AI-assisted engineering practices, evaluates vendors, and promotes secure coding, resiliency, and operational stability across teams.

Lead design, implementation, and lifecycle management of HSM and cryptographic infrastructure (Thales/FutureX). Create architecture, runbooks, and diagrams; drive migrations, DR, and compliance (PCI, FIPS). Troubleshoot Linux/Unix systems, OpenSSL and certificate auth, cloud KMS/HSM, and automate via Terraform. Collaborate cross-functionally on standards, participate in risk assessments, audits, and incident response, and validate AI-assisted security outputs.

Lead design and deliver multi-cloud security and continuous compliance solutions across Azure/AWS/GCP. Build automated preventive/detective/corrective controls, implement audit-ready observability, author production code (Python/Go, with Java integrations), optimize CI/CD (Jenkins), operate Kubernetes/workflow orchestration, integrate enterprise systems, and drive secure, resilient engineering and responsible AI-assisted development practices.

Lead design, implementation, and lifecycle management of Hardware Security Module (HSM) and cryptographic infrastructure. Develop architectures, runbooks, and operational processes; manage HSM platforms (Thales, FutureX), key management, and cloud KMS/HSM. Support migrations, audits, incident response, and resilience planning while validating AI-assisted security outputs and ensuring compliance.