Top Entry Level Cyber Security Jobs in St. Louis, MO

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.

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 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.

Designs and engineers secure network and cloud architectures across AWS, GCP, Azure, and physical data centers. Responsibilities include threat modeling, network segmentation, monitoring, alerting, automation, attack-surface reduction, and secure connection patterns. The role drives strategic security improvements, partners with product and infrastructure teams, communicates architectural decisions, and mentors engineers. Candidates need deep hybrid networking and cloud security expertise, protocol knowledge, scripting ability, independent problem-solving skills, and strong communication.

Implement and operationalize Microsoft Purview and Microsoft 365 data protection controls for clients. Responsibilities include designing classification frameworks and sensitivity labels, configuring and tuning DLP, retention, lifecycle, and Insider Risk Management policies, assessing Microsoft 365 security settings, protecting sensitive data, facilitating requirements workshops, producing technical documentation, and supporting client handoff. The role requires hands-on production implementation, direct client engagement, and expertise across Microsoft 365 workloads.

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.

Build and lead Cape’s security technical program across detection and response, corporate security, and product security. Define strategy, priorities, metrics, roadmaps, and execution processes; manage security tooling procurement and implementation; maintain backlogs; coordinate dependencies; and translate security risks and requirements between security engineers and the broader engineering organization.

The Product Security Engineer partners with Engineering and Product teams to embed security throughout the development lifecycle. Responsibilities include threat modeling, architecture and security reviews, vulnerability validation, remediation planning, security-tool ownership, automation, secure coding guidance, incident response, and assessing risks in cloud and AI-enabled products. The role requires strong application security, identity, authentication, authorization, coding, communication, and cross-functional collaboration skills.

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.

Company-wide recruiting bucket for Trace3's Security team. No specific role duties listed; applicants are encouraged to apply for a specific security opening. Describes company culture, perks (benefits, 401(k), PTO), and commitment to diversity and inclusion.