1,073 Results for

Senior Security Jobs in O Fallon, MO

Jobs

Cyber SAP Security And GRC Access & Process Control Senior Consultant / Senior Engineering Management Specialist Deloitte

Saint Louis, MO

$105,400–$207,800 / year

This role works with client and Deloitte teams to address security requirements across SAP platforms, integrations, and transformation programs while helping organizations reduce risk and enable business operations. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.

3 days ago

Cyber Oracle Cloud Security - Senior Consultant / Senior Engineering Management Specialist Deloitte

Saint Louis, MO

$105,400–$207,800 / year

Supporting security workstreams across Oracle Cloud Enterprise Resource Planning (ERP), Human Capital Management (HCM), and Supply Chain Management (SCM) implementations. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.

3 days ago

Cybersecurity – Senior Information System Security Manager (ISSM) Sign on Bonus Potential Boeing

Berkeley, Missouri

$161,500–$218,500 / year

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. The Boeing Company The Boeing Company is looking for a highly talented, motivated, and creative cybersecurity professional to join our Air Dominance Classified Security Operations team as a Cybersecurity – Senior Information System Security Manager (ISSM) in Berkeley, MO .

5 days ago

Senior Product Security Engineer Boeing

Berkeley, Missouri

$162,350–$219,650 / year

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. The position is part of a multidisciplinary team delivering leading-edge defense platforms and involves close coordination with engineering groups, program stakeholders, and internal and external partners to define requirements and address program needs.

5 days ago

Senior Cloud & Data Protection Security Engineer US Bank

Earth City, MO

$111,605–$131,300 / year

They will troubleshoot complex infrastructure and connectivity issues, onboard databases and applications into protection platforms, implement platform improvements, and work independently to maintain stable, scalable, and secure services. In addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures.

7 days ago

Senior Information Security Engineer MasterCard

O'fallon, MO

$115,000–$184,000 / year

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. This role focuses on the operational security of AI systems, including continuous assessment, monitoring, testing, and response using specialized AI security tools such as AI red teaming, guardrails, model evaluation platforms, and AI Security Posture Management (AI SPM) capabilities.

18 days ago

AI Security Senior Consultant Deloitte

Saint Louis, MO

$105,400–$207,800 / year

As a Senior Consultant, Strategy, Growth & Transformation in Deloitte Cyber's Cyber for AI practice, you will own and deliver work that helps clients understand and mitigate/monitor the risks of adopting AI across the enterprise and define the cybersecurity controls, governance, policy and risk management approaches needed to deploy AI securely and safely. As a Senior Consultant, Strategy, Growth & Transformation on the Cyber Strategy & Transformation team, you will be responsible for: Lead discovery and current-state assessments of client AI cybersecurity controls governance, risk management and security practices across business units and AI use cases.

3 days ago

Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, And Transformation Deloitte

Saint Louis, MO

$105,400–$207,800 / year

1+ years of experience designing, deploying, and managing Zscaler Cloud Connector, including deployment within cloud environments (AWS, Azure, and/or GCP), workload-to-internet and workload-to-workload traffic inspection, and integration with cloud-native networking constructs (e.g., VPCs, VNets, Transit Gateways). 5+ years of hands-on experience designing, deploying, and managing Zscaler Private Access (ZPA), including application segment configuration, access policies, connector deployment, and zero trust network access (ZTNA) architectures replacing legacy VPN infrastructure.

3 days ago

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, And Transformation Deloitte

Saint Louis, MO

$105,400–$207,800 / year

Configuring and tuning security capabilities including Threat Prevention, intrusion prevention system/intrusion detection system (IPS/IDS), Anti-Spyware, Antivirus, WildFire, Domain Name System (DNS) Security, and Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption policies. Experience integrating Palo Alto Firewalls and Prisma with SIEM/SOAR platforms (e.g., Splunk, Microsoft Sentinel, Palo Alto XSOAR) via log streaming, API connectors, or syslog for threat detection and incident response workflows.

3 days ago

Cyber Network Security Architecture - Senior Manager Deloitte

Saint Louis, MO

$163,400–$322,100 / year

8+ years of experience in the design and architecture of enterprise-level technical stacks, including VPNs, CDN solutions, Load Balancers, Subnetting, Next-Generation firewall design, and highly scalable security solutions like Secure Access Service Edge (SASE) technologies. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.

3 days ago

AI Security Senior Manager Deloitte

Saint Louis, MO

$163,400–$322,100 / year

This role sits at the intersection of executive client leadership and cross-capability strategic and solution delivery, combining deep AI cyber risk and governance expertise with the acumen to guide technical teams across Data, Infrastructure, Identity, Security Operations and Application Security. As a Senior Manager, Strategy, Growth & Transformation specializing in Strategy in Deloitte Cyber's Cyber for AI practice, you will help clients solve complex AI cybersecurity, governance and risk strategy challenges as they scale generative AI and agentic systems across their client enterprises.

9 days ago

Complex Securities Valuation Senior Consultant Deloitte

Saint Louis, MO

$105,400–$207,800 / year

4+ Years of experience specifically working in complex securities valuation financial modeling, managing client relationships, creating, and delivering client service work that exceeds client expectations, communicating (both written and oral) and presenting complex technical issues to non-technical internal and external clients. As a Senior Consultant on the Complex Securities team, you will be responsible for: Supporting Deloitte audit teams and non-audit clients with valuation analyses for complex equity and debt securities in connection with regulatory, financial reporting, and tax matters.

9 days ago

Information Digital Technology & Security (IDT&S) Business Partner (BP) Senior Manager Sign on Bonus Potential Boeing

Hazelwood, Missouri

$191,250–$258,750 / year

The senior IT leader will be day-to-day reporting to the Program’s Digital Infrastructure Segment Integrated Product Team (IPT) leader via dotted line and will report into the Boeing Defense, Space and Security (BDS) Chief Information Officer (CIO) organization via hard line. The successful candidate will marshal IT services to ensure IPT objectives are met, prioritizing all IDT&S activities with the IPT leader and other program stakeholders (e.g., Engineering, Cybersecurity, Supply Chain, etc.) to ensure IT deliverables are on schedule, within budget, and meet key requirements for the program.

18 days ago

Senior Infrastructure Security Engineer Centene Corporation Group

$87,000–$161,300 / year

This role strengthens security visibility and risk reduction by validating internet-facing assets, confirming ownership, assessing security coverage, maintaining inventory accuracy, coordinating remediation activities, executing breach attack simulation exercises, validating control effectiveness, and producing actionable reporting. Position Purpose: The Senior Infrastructure Security Engineer is responsible for operating and maturing Centene's Attack Surface Management (ASM) and Breach Attack Simulation (BAS) programs across hybrid, cloud, on-premises, and enterprise environments.

3 days ago

Cyber SAP Security and GRC Access & Process Control Senior Consultant / Senior Engineering Management Specialist Deloitte Touche Tohmatsu Ltd

St. Louis, MO

$105,400–$207,800 / year

16 days ago

Complex Securities Senior Consultant Deloitte

Saint Louis, MO

$105,400–$207,800 / year

15 days ago

Cisco Network Security Engineer/ Senior Consultant Deloitte

Saint Louis, MO

$105,400–$207,800 / year

3+ years of experience with Cisco Identity Services Engine (ISE) 802.1X Network Access Control (NAC), guest lifecycle management, profiling policies, TrustSec segmentation, and Cisco Firepower capabilities including intrusion prevention system (IPS), malware protection, Uniform Resource Locator (URL) filtering, Domain Name System (DNS)-based security, Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption, and cloud firewall deployments in Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). 5+ years of experience designing, deploying, and managing Cisco Firepower Threat Defense (FTD) and Firepower Management Center (FMC) in enterprise environments, including physical appliances, virtual instances, and cloud-delivered Firewall Management Center (cdFMC).

15 days ago

Senior Systems Engineer (Network Security Engineer) U.S. Bancorp

$105,400–$124,000 / year

In addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures. Supervises and develops multi-platform converged enterprise engineering solutions targeted to meet existing, enhanced, and new platform solutions for business and infrastructure services.

30+ days ago

Senior Systems Engineer (Network Security Engineer) US Bank

Earth City, MO

$105,400–$124,000 / year

30+ days ago

Security Solutions Senior Director - AI Security World Wide Technology Inc

$175,600–$219,500 / year

Set the technical direction for the domain, maintaining a credible and current point of view on threats to AI systems, including prompt injection, model supply chain compromise, data poisoning, adversarial attacks, agent identity and authorization failures, and tool and MCP supply chain risk, and on the controls that address them. Through its Advanced Technology Center (ATC)-a collaborative ecosystem featuring state-of-the-art hardware and software-WWT enables clients and partners to conceptualize, test and validate innovative technology and then deploy solutions at scale using its global integration and distributions capabilities.

29 days ago

Get noticed by top employers!

Upload your resume to let employers know you're open to Senior Security job opportunities. Plus, receive relevant job recommendations in your inbox.

Create A Free Account

Senior Security Jobs in O Fallon, MO

Cyber SAP Security And GRC Access & Process Control Senior Consultant / Senior Engineering Management Specialist Deloitte

Cyber Oracle Cloud Security - Senior Consultant / Senior Engineering Management Specialist Deloitte

Cybersecurity – Senior Information System Security Manager (ISSM) **Sign on Bonus Potential** Boeing

Senior Product Security Engineer Boeing

Senior Cloud & Data Protection Security Engineer US Bank

Senior Information Security Engineer MasterCard

AI Security Senior Consultant Deloitte

Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, And Transformation Deloitte

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, And Transformation Deloitte

Cyber Network Security Architecture - Senior Manager Deloitte

AI Security Senior Manager Deloitte

Complex Securities Valuation Senior Consultant Deloitte

Information Digital Technology & Security (IDT&S) Business Partner (BP) Senior Manager **Sign on Bonus Potential** Boeing

Senior Infrastructure Security Engineer Centene Corporation Group

Cyber SAP Security and GRC Access & Process Control Senior Consultant / Senior Engineering Management Specialist Deloitte Touche Tohmatsu Ltd

Complex Securities Senior Consultant Deloitte

Cisco Network Security Engineer/ Senior Consultant Deloitte

Senior Systems Engineer (Network Security Engineer) U.S. Bancorp

Senior Systems Engineer (Network Security Engineer) US Bank

Security Solutions Senior Director - AI Security World Wide Technology Inc

Similar Job Searches

Cybersecurity – Senior Information System Security Manager (ISSM) Sign on Bonus Potential Boeing

Information Digital Technology & Security (IDT&S) Business Partner (BP) Senior Manager Sign on Bonus Potential Boeing