Top Cyber Security Jobs in Charleston, SC

Secure CrowdStrike’s software supply chain and code-hosting environments by assessing GitHub organizations, open-source integrations, repositories, dependencies, and third-party packages. Implement repository guardrails, secret scanning, access controls, and automation; investigate supply-chain threats such as typosquatting and dependency confusion; promote secure coding and open-source compliance; and collaborate with engineering teams on security initiatives.

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.

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 day-to-day IT and information security operations for a fully remote Mac fleet. Responsibilities include endpoint lifecycle management, identity and access administration, Google Workspace, helpdesk support, asset coordination, CrowdStrike EDR monitoring, DLP controls, Datadog SIEM alerting, security hygiene, access reviews, and SOC 2 and PCI evidence collection. The role requires autonomous ownership, automation, clear documentation, cross-functional collaboration, and approximately 4–6 years of experience beyond ticket-only support.

Conduct advanced application security research across GitLab’s DevSecOps and AI-powered platforms. Identify and exploit novel, systemic, and chained vulnerabilities; develop proof-of-concept exploits, testing methodologies, and research automation; assess AI attack vectors and open-source dependencies; drive remediation and security improvements; advise engineering teams, contribute to roadmaps, mentor researchers, and share findings with the security community.

Conducts advanced application security research across GitLab’s DevSecOps and AI-powered platforms. Responsibilities include discovering and exploiting systemic vulnerabilities, penetration testing, developing proof-of-concept exploits, researching AI and agentic security threats, building automated research tooling, coordinating remediation, mentoring security professionals, and communicating findings to engineering and security communities.

Lead public sector security compliance initiatives, including FedRAMP continuous monitoring, audits, certifications, GRC strategy, compliance automation, documentation, customer support, and regulatory analysis. Collaborate with IT, Product, Engineering, Security, Legal, auditors, and government customers to strengthen compliance across GitLab’s SaaS and self-managed offerings.

Own and improve vulnerability management across cloud, on-premises, network, and endpoint environments. Responsibilities include scanning, triage, risk-based prioritization, remediation coordination, SLA tracking, exception management, closure validation, asset reconciliation, reporting, incident support, on-call participation, and audit documentation. The role partners with Engineering, SRE, IT, and Infrastructure teams and uses security tooling and AI-assisted workflows to reduce exposure and recurring vulnerabilities.

Build and operate scalable security tooling, applications, APIs, and automation for CrowdStrike’s global multi-cloud Product Security environment. Responsibilities include software supply chain security, AI-powered vulnerability discovery, platform visibility, risk assessments, CI/CD, SRE operations, datastore management, monitoring, and incident response support. The role partners across Product Security to define tooling strategy and maintain mission-critical security services.

Own and evolve GitLab’s authorization systems across its Ruby on Rails monolith and next-generation Rust policy engine. Design fine-grained permissions for users, tokens, roles, and AI agents; secure GraphQL and REST APIs; lead feature-flagged rollouts and migrations; improve performance and reliability; and collaborate across authentication, platform, AI, and modular-service teams in a distributed asynchronous environment.

Owns GitLab’s global security awareness and human-risk program, including training, phishing simulations, behavior-change initiatives, security culture campaigns, multimedia content, platform administration, reporting, vendor management, policy support, audit evidence, and remediation tracking. The role requires measurable risk reduction across a globally distributed enterprise and strategic influence across technical and non-technical teams.

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.

Conduct manual penetration tests and secure code reviews across web applications, APIs, AWS infrastructure, and AI systems. Develop AI-assisted security tooling, test LLM applications and agents, triage SAST findings, tune detection rules, support security reviews before production, and communicate risks and remediation priorities to engineering teams.

Build and scale application security for a SaaS platform by integrating SAST, SCA, DAST, secrets scanning, and container/IaC checks into CI/CD. Partner with engineering and DevOps teams on threat modeling, secure code reviews, vulnerability remediation, incident response, and secure development practices. The role also supports compliance goals and translates security risks clearly to engineers.

Supports IT solution design and implementation, analyzes cybersecurity protocols and recommends improvements, and collaborates with data science teams to analyze data and generate actionable insights. The internship provides hands-on experience, mentorship, professional development, and exposure to aerospace technology. Candidates must be enrolled in a relevant bachelor's or higher degree program, maintain a 3.0 GPA, and graduate in December 2027 or later.

Own and improve Onebrief’s corporate security stack across endpoints, identity, SaaS, browsers, Zero Trust, EDR, SIEM, and MDM. Establish secure configuration baselines, detect and remediate drift, integrate telemetry, and build API-driven or infrastructure-as-code automation. Translate CMMC 2.0 and NIST-aligned requirements into continuously validated technical controls and reliable audit evidence. Partner with Corporate IT, Security Operations, GRC, and application owners to strengthen security posture and reduce manual compliance work.

Leads RMF lifecycle activities and ATO authorization for simultaneous classified and unclassified DoD enterprise IT systems. Manages eMASS records, security controls, POA&Ms, continuous monitoring, audits, policy analysis, and coordination with Authorizing Officials and program offices. Provides senior technical guidance, mentors cybersecurity staff, supports enterprise security architecture, and contributes to proposals and customer engagements. Requires deep Navy and DoD authorization expertise, active Secret clearance, and ability to obtain TS/SCI clearance.

Provides communications security subject-matter expertise across Ground Radios, supporting EKMS/KMI services, COMSEC operations, cryptographic modernization, vulnerability assessments, threat mitigation, and NSA compliance. The role analyzes cryptographic systems and documentation, identifies outdated algorithms and capability gaps, recommends process improvements, coordinates vendors and stakeholders, trains personnel, and supports secure enterprise network enhancements.

Leads a 12-person application security practice conducting code audits, vulnerability research, and secure design reviews. Oversees technical delivery, client relationships, project staffing, utilization, profitability, recruiting, and team development. Provides hands-on technical direction across source-code security work, determines investments in tooling and methodologies, and integrates AI-assisted auditing and research into team workflows. The role also owns practice P&L and supports engineers’ conference, publication, and open-source contributions.

Lead Zeta’s AI-native Application Security function by defining strategy, building the team, embedding security agents and policy-as-code into IDEs, pull requests, CI/CD, and AI/ML pipelines, and overseeing continuous threat modeling and validation. Own security for AI systems, models, prompts, and agents, including adversarial testing for prompt injection, model abuse, and data leakage. Mentor engineers and promote automated, secure software development practices.

Lead security engineering across AI systems, cloud infrastructure, product security, GRC automation, GitHub controls, and compliance workflows. Develop AI-specific threat models and guardrails, automate security checks and evidence collection, strengthen AWS and GCP environments, manage CSPM tooling, and secure software supply chains. Partner with Engineering, Product, Legal, IT, and GRC to establish security programs and practical controls for Jasper’s AI platforms.

Manages global 24/7 Security Operations Center operations, including processes, playbooks, shift coverage, quality assurance, analyst development, incident response capabilities, and operational performance. Leads cybersecurity analysts, partners with Product and Support teams, reports on objectives and key results, operationalizes new services, and represents the organization in public speaking engagements.

Lead the development of SailPoint’s cybersecurity architecture practice. Create holistic and reference architectures, define security domains, develop strategic roadmaps, identify security gaps, and translate architectural concepts into viable engineering solutions. Partner with leadership to prioritize initiatives, secure funding, and operationalize the practice. The role also includes hands-on security projects, cross-functional collaboration, stakeholder influence, and mentoring architects and engineers across cloud, application, identity, and network security.

Leads cybersecurity governance, risk, and compliance engagements for clients. Responsibilities include security assessments, SSP development, regulatory compliance analysis, policy and procedure creation, findings presentation to executives, remediation planning, client relationship management, project oversight, business development, and mentoring junior advisors. The role requires independent judgment, strong client communication, and the ability to manage multiple complex engagements while maintaining quality and meeting deadlines.

Conduct cybersecurity GRC assessments, control gap analyses, risk and compliance reviews, social engineering simulations, and client interviews. Develop executive reports, remediation plans, policies, procedures, and security recommendations aligned with regulatory frameworks. Manage multiple consulting engagements, present findings to executives and boards, support advisory services, review deliverables for quality, and maintain long-term client relationships. The role is remote with occasional travel.