Top Senior Cyber Security Jobs in St. Louis, MO

The Security Engineer will manage Liftoff's SIEM, lead the adoption of AI-augmented SOC tools, triage alerts, and improve incident response processes while collaborating on various security functions.

As a Principal Security Engineer in Data Security, you will spearhead Upstart's data security program, architect software solutions, partner cross-functionally, and mentor teams while ensuring effective protection of sensitive data.

Lead AppSec efforts across product, platform, and AI features by owning secure SDLC, performing threat modeling and deep code reviews, driving vulnerability management and remediation, building AppSec tooling and automations (including AI-assisted workflows), and enabling engineering teams with secure design guidance and training.

Manage and coach a security operations team responsible for detection, investigation, and incident response. Perform hands-on work designing/tuning detections, operating SIEM/SOAR, leading incident response, improving automation and runbooks, and managing vendor relationships to protect patient and provider data.

Assess and harden software supply chain security by performing technical assessments, designing and implementing security controls and monitoring for build pipelines, investigating systems for vulnerabilities, creating tooling to address gaps, and leading cross-team projects to improve CrowdStrike's product security posture.

The Security Software Engineer will design and implement security controls for MongoDB Atlas, collaborating across engineering teams and ensuring adherence to high security standards.

The Senior Site Reliability Engineer will lead security design and implementation for cloud infrastructures, mentor teams, and automate security solutions.

Lead product vision and strategy for security operations services, defining outcomes for managed investigation, response, threat hunting, and advisory services. Partner with customer security ops, product, and marketing teams to deliver AI-driven, automated features, represent Zscaler to customers, and drive measurable security outcomes and operational alignment.

Sell Zscaler's data security portfolio (DLP, CASB, DSPM) to commercial accounts. Act as the specialist for customers and partners, build account-based strategies, collaborate with solution engineers and sales leadership, and close complex deals with stakeholders from technical practitioners to C-suite.

Sell Zscaler's data security suite (DLP, CASB, DSPM) to enterprise accounts. Act as the specialist for majors, build account-based strategies, partner with solution engineers, engage C‑level and technical stakeholders, and own regional quota to drive net-new and land-and-expand deals.

As a Security Architect, you will build secure agent runtimes and systems, ensuring robust security capabilities in agentic AI solutions while conducting security evaluations.

The role involves managing the security incident response team, handling incidents, coaching team members, and improving security processes, aiming for operational excellence in threat response.

The Senior Security Engineer will assess application security for AI systems, focusing on prompt injection techniques, threat modeling, and client training on AI security topics.

As a Security Engineer, safeguard Runpod's GPU cloud platform, conduct security assessments, implement fixes, and foster a security-first culture with development teams.

Lead and mature Affirm's third-party security risk program by designing controls, automating GRC workflows, evaluating third-party/cloud security, building integrations and dashboards, and advising stakeholders. Drive automation using Python and agentic coding tools, operate orchestration across systems, manage a portfolio of risk reviews, and establish metrics, processes, and reporting to scale security risk management.

Lead and grow a Security Platform engineering team to design and operate centralized identity and access services (IdP integrations, SSO, authorization frameworks). Define roadmap, partner cross-functionally, and drive adoption of secure-by-default access controls across products.

Lead operational support for privileged access management, implement AI security capabilities, and maintain security architecture. Collaborate to strengthen cybersecurity posture.

The Sr. Infrastructure Security Engineer is responsible for protecting patient data, enhancing cloud infrastructure security, and collaborating with engineering teams to implement effective security practices.

Serve as a trusted technical advisor in pre-sales for cloud-native security solutions. Design tailored architectures, demo and present to stakeholders, support post-sale onboarding, and collaborate with sales, product, and engineering to drive adoption and influence product direction.

Lead technical sales and partner enablement for strategic channel partners in cybersecurity. Own the enablement, POC model, and partner relationships, producing technical collateral and driving partner-sourced revenue.

Design, develop, and maintain Windows-focused PAM components including services, agents, and RDP handlers. Integrate with Windows APIs, authentication and privilege models, implement secure credential handling and policy enforcement, collaborate with backend teams, perform code reviews, and troubleshoot complex Windows OS and enterprise configurations.

Lead design, implementation, upgrade, and migration of CyberArk PAM solutions across client environments. Conduct discovery workshops, onboard privileged accounts, integrate CyberArk with SIEM/ITSM/IAM via APIs, create custom connectors and PSM plugins, produce documentation, manage project delivery, troubleshoot production issues, and mentor junior engineers.

Own and grow Abnormal's strategic partner portfolio (initially CrowdStrike and Cyera), driving co-sell, joint GTM, pipeline, executive alignment, enablement, event representation, and partner lifecycle transitions to deliver measurable revenue and strategic outcomes.

Lead and scale a North America mid-market sales organization to drive new-business revenue. Define go-to-market strategy, coach senior sales reps, manage complex enterprise deals, align cross-functional stakeholders, expand partner channels, and deliver accurate forecasting and performance metrics to support company growth.

The Solutions Engineer collaborates with sales to meet customer needs, conducts demos, develops proposals, and ensures product implementation and support.