Top Remote Senior Security Engineer Jobs

Lead design and implementation of security systems and controls for large-scale AI and HPC cluster infrastructure. Drive incident response, risk assessment, system hardening, governance, audit readiness, and cross-team collaboration to protect hardware, software, and datacenter platforms.

Supports cybersecurity risk management and authorization for the VA.gov Platform. Assesses NIST security controls, performs gap and risk analyses, maintains SSPs, POA&Ms, and authorization evidence, and translates deficiencies into engineering remediation. The role supports ATO/cATO readiness, OSCAL automation, threat modeling, secure design reviews, stakeholder coordination, incident response, and continuous synchronization between technical changes and security documentation.

Lead the design, deployment, and operation of network security infrastructure across hybrid on-premise and multi-cloud environments. Manage firewalls, load balancers, IDS/IPS, IAM controls, monitoring, vulnerability remediation, compliance, and incident response. Partner with architecture, security, and operations teams to improve observability, threat detection, resilience, and operational readiness across hyperscale networks.

Design, implement, and support enterprise physical security systems (video surveillance, access control, sensors, IoT). Consult with clients, develop technical architectures, configure and test systems, troubleshoot hardware/software, manage projects, run design workshops, and support sales and delivery. Travel 25-50% and perform hands-on installations and network-integrated solutions.

Build backend services and distributed systems for a cybersecurity and software supply chain security platform. Develop scalable APIs, data pipelines, and platform components handling vulnerability, container, package, runtime, and SBOM data. Work across Linux, Kubernetes, containers, and cloud environments while solving concurrency, performance, reliability, and distributed processing challenges. Own projects from design through deployment, participate in architecture discussions, review code, and collaborate with security researchers and product teams.

Build and advance application and product security across the engineering organization. Responsibilities include establishing secure defaults, CI guardrails, security requirements, threat modeling, risk assessments, penetration testing, vulnerability remediation, secure coding education, roadmap ownership, and hands-on code review. The role partners closely with product, engineering, DevOps, and services teams to secure applications, microservices, and AI features while enabling efficient development.

Owner of Vannevar's authentication and authorization platform: build tenant-isolated auth systems, self-service user/group/permission admin UI, tooling to visualize and validate access, feature-flag and platform management interfaces, and shared authorization capabilities across products.

The Security Sales Engineer will support the enterprise sales team, drive security product adoption, conduct demos, and provide technical support throughout the sales cycle.

Own AWS cloud security posture and vulnerability management using Wiz and AWS-native services. Build Infrastructure as Code guardrails, secure CI/CD pipelines, automate vulnerability workflows, and operate WAF protections. Partner with DevOps and engineering on IAM, network segmentation, containers, secrets, data exposure, telemetry, threat modeling, and application security. Drive projects independently while reducing organizational risk.

Leads KeyBank’s Red Team and offensive security program, including adversary emulation, penetration testing, physical and application assessments, cloud security testing, AI security evaluations, and purple team exercises. Develops testing strategy, methodologies, tooling, metrics, and maturity roadmaps; mentors engineers; coordinates internal and third-party engagements; validates remediation and attack paths; and presents findings and strategic recommendations to executives and cybersecurity stakeholders.

Leads application security engineering for enterprise systems, including SAST and DAST scanning, security control implementation, web application protection, and pipeline development. Uses Veracode, Burp tools, Linux, and programming or scripting languages to identify and remediate vulnerabilities. Applies OWASP, CVSS, CWE, federal compliance standards, and secure architecture practices while supporting scalable digital transformation initiatives. Requires Public Trust eligibility and U.S. citizenship.

Lead detection, response, and digital forensics for security incidents. Monitor alerts, perform technical analysis, act as Incident Commander, build automation and runbooks, mentor engineers, and coordinate cross-team investigations and insider threat work.

This role involves owning the security architecture for AI platforms on GCP, designing guardrails, and integrating security into CI/CD pipelines. Candidates should have extensive experience in cloud security, specifically with GCP services, Kubernetes security, and AI/ML security practices.

Lead design, deployment, and optimization of Cortex XSIAM detections and analytics. Develop XQL detections and threat hunts, build automated response playbooks, integrate security telemetry (endpoint, network, cloud, identity), collaborate with SOC and incident responders, mentor staff, and improve detection fidelity and MTTR at enterprise scale.

Lead product security architecture and offensive testing, including threat modeling, architecture reviews, penetration testing across web applications, APIs, mobile clients, and cloud infrastructure, secure design definition, code reviews, and remediation validation. Partner with engineering teams on authentication, authorization, data protection, trust boundaries, and cloud-native security while communicating risks and leading cross-functional security initiatives.

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.

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

Own and build Grow Therapy's data security infrastructure: automated data classification, field-level masking/tokenization, encryption and key management, secure data connectors to AI tooling, and access controls. Define a multi-year vision, implement pipelines and services, and partner across Data, Engineering, and Detection & Response to make secure-by-default the company standard.

Lead application security for products by performing threat modeling, manual secure code reviews, and penetration testing. Collaborate with engineers to remediate defects, build AppSec automation and tooling, secure cloud/containerized applications, and drive bug-bounty responses to harden platform security.

Lead technical marketing for API, AI agent, and application security by deploying and testing Akamai products, building PoCs, demos, labs, and attack simulations, creating technical content and enablement, validating messaging, and presenting technical briefings while collaborating with product, engineering, and field teams.

Leads enterprise cybersecurity monitoring, threat detection, vulnerability management, SIEM analytics, threat hunting, incident response, and continuous monitoring for federal and DoD-aligned environments. Oversees ACAS/Nessus scanning, STIG validation, patch compliance, detection engineering, threat intelligence, reporting, and remediation coordination. Collaborates with cloud, DevSecOps, ISSO, and engineering teams while mentoring junior analysts and improving security automation.

Design, build, and operate ingestion pipelines and normalized security data products for vulnerability risk management. Transform raw evidence into model-ready features, enable ownership routing and remediation workflows, and maintain data quality, lineage, and observability. Partner with security, engineering, and platform teams to support reporting, risk models, and shift-left scanning readiness.

Hands-on Senior Security Engineer to design, implement, and tune Microsoft 365 data protection across SharePoint, OneDrive, and Teams. Configure DLP, retention and classification labels, reduce oversharing risk, validate business use cases, and collaborate with end users to align security controls with business needs.

Lead Security Engineer responsible for designing and implementing security strategy across cloud (GCP), container (Docker), CI/CD, and application security. Perform threat modeling, penetration testing, vulnerability management, incident response, and ensure compliance (HIPAA, SOC-2, PCI-DSS). Initially hands-on, then lead and mentor a team of 2–8 engineers while collaborating with product teams and reporting to the CTO.