2,777 Results for

Senior Security Jobs in Littleton, CO

Jobs

Sr Account Manager, Risk And Security Solutions Visa

Denver, CO

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. Preferred Qualifications: Payments, Fraud, and Risk Expertise: Extensive experience in payments, fraud prevention, identity, authentication, cybersecurity, or risk management, with the ability to advise financial institutions and fintech partners.

6 days ago

Sr Account Manager, Risk and Security Solutions Visa Inc

Denver, CO

9 days ago

Senior Sales Executive, Risk And Security Solutions Visa

Denver, CO

$143,700–$270,800 / year

Payments, Fraud, and Risk Expertise: Significant experience in the payment's ecosystem, fraud prevention, identity, authentication, cybersecurity, or risk management, with a proven ability to act as a trusted advisor to financial institutions and/or fintech partners. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

5 days ago

Sr Cybersecurity Engineer (AI Security) Moody's Corp

Golden, CO

Requisition ID 15262 - Posted 09/17/2026 - Charlotte - 1414 S Tryon Street More (2). Sr Cybersecurity Engineer (AI Security) (15262).

30+ days ago

Senior Associate, Application Security, DevSecOps KPMG International Cooperative

Denver, CO

$90,400–$168,200 / year

Albany, NY; Albuquerque, NM; Ashburn, VA; Atlanta, GA; Austin, TX; Baltimore, MD; Baton Rouge, LA; Bentonville, AR; Birmingham, AL; Boise, ID; Boston, MA; Boulder, CO; Buffalo, NY; Charlotte, NC; Chicago, IL; Cincinnati, OH; Cleveland, OH; Columbus, OH; Dallas, TX; Denver, CO; Des Moines, IA; Detroit, MI; El Segundo, CA; Fort Worth, TX; Ft Lauderdale, FL; Greenville, SC; Harrisburg, PA; Hartford, CT; Houston, TX; Indianapolis, IN; Irvine, CA; Jackson, MS; Jacksonville, FL; Kansas City, MO; Knoxville, TN; Las Vegas, NV; Lincoln, NE; Los Angeles, CA; Louisville, KY; McLean, VA; Melville, NY; Memphis, TN; Miami, FL; Milwaukee, WI; Minneapolis, MN; Montvale, NJ; Nashville, TN; New Orleans, LA; New York, NY; Oklahoma City, OK; Omaha, NE; Orlando, FL; Philadelphia, PA; Phoenix, AZ; Pittsburgh, PA; Portland, OR; Providence, RI; Raleigh, NC; Richmond, VA; Rochester, NY; Sacramento, CA; Salt Lake City, UT; San Antonio, TX; San Diego, CA; San Francisco, CA; Santa Clara, CA; Seattle, WA; Short Hills, NJ; Shreveport, LA; St Louis, MO; Stamford, CT; Tallahassee, FL; Tampa, FL; Tempe, AZ; Virginia Beach, VA; Washington, DC; Winston-Salem, NC. Strong understanding of core application security principles, security controls, and risk assessment, with proven experience conducting security testing, architecture reviews, and threat modeling; deep knowledge of common and emerging security risks, including the OWASP Top 10, alongside specialized familiarity with AI-specific AppSec threats such as prompt injection, data leakage, and IP protection.

30+ days ago

Senior Software Engineer, Platform Security Fastly Inc

Denver, CO

$181,220–$217,464 / year

Own Complex Challenges: Tackle ambiguous, technically demanding initiatives with multiple stakeholders and organization-wide impactCross-Functional: Partner deeply with Product, Security, Compliance, and other Engineering teamsImpact Management: Proactively identify potential situations that could negatively affect the business or customers and develop strategies to mitigate these risks before they escalate. Fastly's edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers' applications as close to their end-users as possible - at the edge of the Internet.

22 days ago

Senior Software Engineer, Platform Security Fastly Inc.

Denver, CO

$181,220–$217,464 / year

23 days ago

Sr. Manager, National Security Sales Blue Origin Enterprises LP

Denver, CO

$145,188–$203,263.20 / year

Responsibilities include but are not limited to: Lead development and implementation of capture strategy and lead campaign teams for sales of Blue Origin products and services to U.S. Government (USG) acquisition programs, and creation of new opportunities, in coordination with company senior leadership across multiple business units. As a valued member of an outstanding and highly skilled team, you will lead efforts to create, shape, pursue, and secure National Security Space (NSS) program opportunities and contracts, with the Department of Defense and Intelligence Community, as well as NSS industry partners.

30+ days ago

Senior IT Security Engineer - Mission System Cybersecurity & Compliance Lunar Outpost Inc.

Golden, CO

The ideal candidate will bring with them a thorough understanding of security architecture, risk management, US government contracting, controlled environments, and a readiness to work in a dynamic but pragmatic startup environment. Manage security and compliance documentation including SSPs, POA&Ms, Security Control Traceability Matrices (SCTM) and provide evidence of cybersecurity compliance/supporting authorization for operation.

30+ days ago

Senior Application Security Engineer CoBank ACB

Greenwood Village, CO

$121,000–$148,900 / year

Administers and manages the Cloud Native Application Protection Platform (CNAPP), such as Upwind, providing runtime protection, vulnerability management, and workload security across cloud and container environments. Conducts software supply chain security and third-party and vendor risk assessments using tools such as Venminder, evaluating SaaS and third-party hosted services to identify and mitigate risk to CoBank data.

30+ days ago

Senior Software Engineer, Platform Security Fastly

Denver, CO; New York City

$181,220–$217,464 / year

Own Complex Challenges: Tackle ambiguous, technically demanding initiatives with multiple stakeholders and organization-wide impactCross-Functional: Partner deeply with Product, Security, Compliance, and other Engineering teamsImpact Management: Proactively identify potential situations that could negatively affect the business or customers and develop strategies to mitigate these risks before they escalate. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end-users as possible — at the edge of the Internet.

8 days ago

Senior Security Engineer - Detection Engineering Fastly

Denver, CO; New York City

$181,220–$217,464 / year

Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end-users as possible — at the edge of the Internet. To ensure a fair and equitable interview process for everyone, the use of AI technologies—including real-time transcription tools, automated scripts, AI copilots, or external assistants—is strictly prohibited during the interview process unless explicitly authorized by the company in advance.

8 days ago

Senior Network Engineer - Physical Security Astreya

Boulder, Colorado

40.92 - $64.62 USD (Hourly) Please note that the salary information provided herein is base pay only (gross); it does not include other forms of compensation which may or may not apply to this specific position, namely, performance-based bonuses, benefits-related payments, or other general incentives - none of which are guaranteed, may be subject to specific eligibility requirements, and are wholly within the discretion of Astreya to remit. Where an applicant or employee is placed on this range will depend and be contingent on objective, documented work-related considerations like education, experience, certifications, licenses, preferred qualifications, among other factors.

14 days ago

Senior System Security Engineering Integration Lead Lockheed Martin Corporation

Littleton, CO

$95,900–$178,100 / year

Integrate SSE requirements, including Hardware Assurance, Software Assurance, Cyber Security, Asymmetric Threat Vulnerability Management, Supply Chain Risk management, and Nuclear Surety into the reentry system design and development. Familiarity with at least one of the following system security engineering principles and practices, including Hardware Assurance, Software Assurance, Cyber Security, Nuclear Surety, and Supply Chain Risk management.

4 days ago

Senior Supply Chain Program Manager - Blue National Security Blue Origin

Denver, Washington

$114,455–$160,236.30 / year

Key responsibilities of this function include financial management (i.e., EVMS, budgets, targets, working capital, material sales, etc.); supplier management (i.e., Line of Balance (LOB)/Material Status, Supplier Risk/Opportunity management, supplier performance, supply chain metrics, make buy/make where strategies, tactical/strategic sourcing, etc.), and requirements management (i.e. FAR/DFARS, ITAR, OPSEC, security classification guides, public law, quality, warranty, etc.). and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training.

8 days ago

Sr. Navigation Engineer (Top Secret Security Clearance Required) Blue Origin

Littleton, Colorado

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.

4 days ago

Senior Security Analyst Janus Henderson Group

Denver, CO

$100,000–$130,000 / year

Monitor and respond to security alerts and events generated by security tools and technologies, including SIEM, IDS/IPS, firewalls, email, and endpoint detection and response (EDR) systems, in a timely manner meeting SLAs. Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee's job functions (as determined by Janus Henderson at its sole discretion).

30+ days ago

Sr. Systems Security Cyber Engineer - Contingent (Onsite - Aurora, CO) TS/SCI required RTX Corp

Aurora, CO

The SSE team creates comprehensive security solutions by leveraging multiple disciplines, including Anti-Tamper (AT), Software and Hardware Assurance, Cryptography, and Supply Chain Risk Management (SCRM), to implement robust program protection across various systems. Experience utilizing information security toolsets, including anti-virus, vulnerability assessment, HIDS/NIDS, host-based and endpoint security, Multi-Factor Authentication (MFA), Security Information and Event Management (SIEM), and centralized auditing resources.

20 days ago

Cyber - AI Cloud Security Engineer - Senior Consultant Deloitte Touche Tohmatsu Ltd

Denver, CO

$105,400–$207,800 / year

Designing and implementing secure AI workloads across Amazon Web Services, Microsoft Azure, Google Cloud, and hybrid environments, including cloud landing zones, network isolation, private connectivity, logging, encryption, key management, data protection, containers, serverless workloads, Kubernetes, and infrastructure-as-code controls. Required: Bachelor's degree in Information Technology, Computer Science, Artificial Intelligence, Cybersecurity, Computer Engineering, or Software Engineering; equivalent professional work experience in software engineering, AI engineering, cybersecurity, cloud security, application security, or technology consulting may be considered in lieu of a degree.

22 days ago

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation Deloitte Touche Tohmatsu Ltd

Denver, CO

$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.

30+ days ago

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Senior Security Jobs in Littleton, CO

Sr Account Manager, Risk And Security Solutions Visa

Sr Account Manager, Risk and Security Solutions Visa Inc

Senior Sales Executive, Risk And Security Solutions Visa

Sr Cybersecurity Engineer (AI Security) Moody's Corp

Senior Associate, Application Security, DevSecOps KPMG International Cooperative

Senior Software Engineer, Platform Security Fastly Inc

Senior Software Engineer, Platform Security Fastly Inc.

Sr. Manager, National Security Sales Blue Origin Enterprises LP

Senior IT Security Engineer - Mission System Cybersecurity & Compliance Lunar Outpost Inc.

Senior Application Security Engineer CoBank ACB

Senior Software Engineer, Platform Security Fastly

Senior Security Engineer - Detection Engineering Fastly

Senior Network Engineer - Physical Security Astreya

Senior System Security Engineering Integration Lead Lockheed Martin Corporation

Senior Supply Chain Program Manager - Blue National Security Blue Origin

Sr. Navigation Engineer (Top Secret Security Clearance Required) Blue Origin

Senior Security Analyst Janus Henderson Group

Sr. Systems Security Cyber Engineer - Contingent (Onsite - Aurora, CO) TS/SCI required RTX Corp

Cyber - AI Cloud Security Engineer - Senior Consultant Deloitte Touche Tohmatsu Ltd

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation Deloitte Touche Tohmatsu Ltd

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