Top Entry Level Cyber Security Jobs

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.

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.

Harden and maintain AWS GovCloud, Microsoft GCC High, cloud, endpoint, container, and CI/CD environments for defense applications. Investigate vulnerabilities, secure software supply chains, lead threat modeling, enforce configuration and patching policies, monitor SIEM and cloud security alerts, and support federal compliance with CMMC, NIST, and FedRAMP standards. Collaborate across product, platform, and compliance teams to integrate security into the SDLC and support incident response.

Supports product cybersecurity integration for military aerospace programs, including F-15, F/A-18, T-7A, and MQ-25. Responsibilities include evaluating secure architectures and system designs, coordinating with engineering stakeholders, customers, suppliers, and subject matter experts, developing and verifying products, analyzing data, creating test procedures, executing tests, resolving problems, and preparing technical documentation. The role is fully onsite, may require occasional domestic travel, and involves obtaining a U.S. Secret clearance.

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.

Entry-level System Security Engineer supporting cybersecurity engineering for space and mission systems. Manage cyber requirements, design secure systems using MBSE, validate technical security implementations, and support Assessment & Authorization (A&A) to obtain/maintain Authorizations to Operate (ATO). Collaborate with cross-functional teams, apply NIST/DISA/CIS standards, perform risk analysis and security planning, and integrate DevSecOps and software security engineering practices into system development.

Own and evolve security infrastructure for AI foundation-model platforms across compute, storage, networking, and data systems. Architect secure Kubernetes and cloud patterns, manage identity and secrets, secure data pipelines, create threat models, and automate policy enforcement and security checks. Partner with research and engineering teams to deliver scalable systems with strong security, reliability, and performance.

Designs and secures enterprise AI platform foundations for mission-critical environments. Responsibilities include threat modeling, tenant isolation, identity and authorization architecture, secure CI/CD, compliance-by-design, and protection of systems executing untrusted code, tools, or agent actions. The role partners with client engineering, product, security, and business stakeholders to deliver secure, reliable, and compliant platform capabilities.

Own and improve corporate security across identity and access management, endpoint protection, SaaS applications, Zero Trust, automation, detection, and incident response. Implement Entra ID controls, SSO, SCIM, MFA, RBAC, JML workflows, Intune policies, EDR, and security baselines. Automate security processes with Python or JavaScript, investigate alerts, remediate incidents, and partner with IT, Security, Engineering, and business teams in a fast-moving startup environment.

The provided description contains no specific responsibilities or qualifications for this Security Engineer II role. It primarily presents Lennar’s benefits, equal employment statement, and company information.

Secure and modernize TLS implementations in mainframe environments. Assess cipher suites and cryptographic security, troubleshoot TLS handshakes using Wireshark, inventory endpoints and dependencies, plan TLS 1.3 migrations, and develop standards, runbooks, monitoring, and reports while coordinating with mainframe, network, platform, and security teams.

Conduct cyber penetration testing, adversarial security assessments, system exploitation, network and architecture analysis, and security architecture reviews. Test enterprise systems, hypervisors, Windows installations, and cloud services; analyze results; and develop risk, threat, and mitigation plans. The role also communicates vulnerabilities and risk posture to senior executives and performs complex technical tasks with minimal direction.

The Cyber Security Engineer will support critical national security missions through cybersecurity engineering work within an information technology environment. The posting specifies full-time employment, a minimum TS/SCI clearance requirement, and up to 10% continental U.S. travel. CACI offers comprehensive benefits, professional development, flexible time off, and competitive compensation.

Serve as a customer-facing pre-sales security and compliance architect for defense and national security customers. Advise on DoD cybersecurity frameworks, authorization requirements, cloud architecture, network security, cryptography, and SaaS security controls. Partner with sales and internal technical teams, engage senior government stakeholders, build customized demos, lead workshops, support RFIs, monitor policy changes, and translate requirements into customer guidance and product feedback.

Manage vulnerability scanning, patching, threat detection, incident response, identity and access management, data loss prevention, vendor security due diligence, and complex tier 3 security support. The role also leads security investigations, remediation, root cause analysis, policy development, control testing, and implementation of security solutions while maintaining documentation and communicating risks to leadership.

Build and scale internal security systems, analyze security data from logs and endpoints, design detection technologies, assess infrastructure risks, recommend remediation, and execute projects improving intrusion detection, scanning, testing, and response capabilities.

Develops and implements cybersecurity and infrastructure controls for mission-critical unmanned systems supporting Navy and Marine Corps operations. Responsibilities include vulnerability scanning and remediation, risk assessments, security event correlation, advanced threat detection, and applying NIST, RMF, and Department of the Navy policies. The engineer analyzes network, system, and application vulnerabilities, recommends security strategies, and communicates technical risks to diverse stakeholders.

Develops and implements cybersecurity controls for mission-critical unmanned systems supporting Navy and Marine Corps operations. Responsibilities include vulnerability and risk assessments, scan-result remediation, threat detection, event correlation, infrastructure security, and communicating security issues to technical teams and senior management. The role requires Secret clearance, Security+ certification, vulnerability-scanning experience, and knowledge of NIST and DoN Risk Management Framework policies.

Develops and implements cybersecurity controls for mission-critical unmanned systems supporting Navy and Marine Corps operations. Responsibilities include vulnerability scanning and remediation, risk assessments, threat detection, event correlation, security analysis, and infrastructure protection. The role requires applying NIST and RMF policies, communicating security risks to technical and senior audiences, and securing network, system, application, and communications architectures in contested environments.

Designs and reviews security architectures for applications, networks, databases, operating systems, SAP, cloud environments, and service providers. Partners with business and IT stakeholders throughout project lifecycles to identify risks, define controls, document solutions, and ensure requirements are delivered on time and within budget. Maintains security procedures, recommends improvements, and supports information governance, policy development, hardening, and compliance with frameworks including NIST and NERC CIP. Global travel may be required.

The fellowship provides military spouses and separating service members with cybersecurity training and hands-on experience through projects and vendor training, aimed at enhancing their security skills.

Designs and implements security controls across cloud platforms, operating systems, Kubernetes, networks, and CI/CD. Audits infrastructure for weaknesses, develops security and privacy improvements, performs threat modeling, and drives remediation. The role includes software development, infrastructure security, incident containment, and technical security analysis while collaborating with engineering teams in a distributed startup environment.

Two-year rotational program for graduating students to design, build, and enhance secure applications, systems, controls, automations, and infrastructure. Participants gain experience in secure software development, DevSecOps, identity and access management, vulnerability remediation, and cybersecurity while collaborating across engineering and security teams. The program emphasizes leadership development, Agile delivery, project ownership, mentorship, and cross-functional communication.

Provide entry-level cybersecurity engineering support for a NAVSEA program office: assist implementing security measures, monitor system posture, support documentation and compliance, and help implement cyber controls under supervision for classified programs.