20 security intern jobs at 18 companies in Colorado

1mo
Save
Mark Applied
Hide
Intern to Entry Level Conversion – Business Functions (All) (Summer 2026 Intern Program)
Everett or Saint Charles or Portland or Charleston or Oklahoma City or Berkeley or Miami or Huntington Beach or Hazelwood or Germantown or El Segundo or China Lake or Arlington or Ridley Park or Tukwila or North Charleston or Kennedy Space Center or Fairfax or Houston or Colorado Springs or Chicago or Long Beach or Renton or Dallas or Seattle or Auburn or Philadelphia or San Antonio or Kent or Mesa
$50k-$174k/yr HybridFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Enrolled college student with graduation before August 2027; previous Boeing internship required. US Person required; some roles may require ability to obtain security clearance. Employer will not sponsor visas.
3d
Save
Mark Applied
Hide
2026 Fall Intern - Inflight Experience Operations Strategy
Denver, Colorado, United States
$20-$24/hr OnsiteFull Time
Frontier Airlines
Frontier AirlinesNasdaq: ULCC: Provides low-fare passenger air transportation services across the Americas.
Currently pursuing a degree in business/aviation/operations/engineering/computer science; must pass FAA criminal background checks and be able to secure airport/SIDA or customs badges; strong communication and MS Office skills.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook
1mo
Save
Mark Applied
Hide
Building Security Guard
Boston or Hyde Park or Ohio or Delaware or New York or California or Colorado or Washington or Maryland or Connecticut or Illinois or Nevada or Kentucky or Michigan or New Jersey or Maine or Missouri or Massachusetts or Montana
$22-$26/hr OnsiteFull Time
Brink's
Brink'sNYSE: BCO: Provider of secure logistics and global cash management services.
Must be 21+, able to lift 50 lbs, perform data entry, obtain firearms permit or pass firearms licensing, obtain guard card or other required licenses, complete internal training, and work in a fast-paced branch environment.
1mo
Save
Mark Applied
Hide
DEN International Airport Security Officer
Denver, Colorado, United States
$23/hr OnsiteFull Time
ACTS-Aviation Security
ACTS-Aviation Security: Provides aviation security screening and protection services for airports.
High school diploma/GED, valid driver\u0000s license, ability to pass TSA Security Threat Assessment and criminal history check, able to stand/walk full shifts and lift 25 lb, customer service and communication skills; 2 years security/military/law enforcement preferred.
2mo
Save
Mark Applied
Hide
Director, National Security-Trade Controls
Greenwood Village, Colorado, United States
$130k-$175k/yr OnsiteFull Time
Alvarez & Marsal
Alvarez & Marsal: Provides management consulting, restructuring, and business advisory services.
Bachelor’s degree required; advanced degree preferred; international trade and compliance experience; strong research/writing; proficiency with MS Office and collaboration tools.
MS Teams, Microsoft Word, Microsoft Excel, PowerPoint, Microsoft Project, SharePoint
2mo
Save
Mark Applied
Hide
Senior Manager, Engineering - Platform Security
Denver or New York City or San Francisco
$228k-$274k/yr HybridFull Time
Fastly
FastlyNYSE: FSLY: Provides edge cloud platform for content delivery and cybersecurity.
4+ YOE4+ Mgmt4+ years managing Platform or Site Reliability Engineering teams; 10+ years distributed systems; experience with secrets/workload identity; large-scale production infra in cloud and on-prem; Linux internals; Python or Go a plus.
Kubernetes, PKI, Chef, Python, Go, Terraform, HashiCorp Vault, SPIFFE, SPIRE, Linux
4w
Save
Mark Applied
Hide
Cyber Researcher, Attack Emulation (Senior / Principal)
Burlington or Golden or Israel
$180k-$220k/yr RemoteFull Time
Pentera
Pentera: Automated security validation and penetration testing platform
5+ YOE5+ years security research/penetration testing, 3+ years Python, strong Windows/Linux internals, reverse engineering, cloud (AWS/Azure), and proficiency with security tools (Metasploit, Nmap, Burp).
Python, Metasploit, Impacket, Nmap, Burp, IDA, Ghidra, WinDBG, Radare2, Windows, Linux, AWS, Azure
4w
Save
Mark Applied
Hide
Protection Specialist, Executive Services, NA
Denver, Colorado, United States
$130k-$140k/yr OnsiteFull Time
Vantage Data Centers
Vantage Data Centers: Provides hyperscale data center campuses for cloud and AI providers.
5+ YOE5+ years executive protection or corporate security experience; experience with close protection, travel security, advances, and OSINT; ability to support domestic and international travel up to ~50%+, strong communication, judgment, and situational awareness.
1mo
Save
Mark Applied
Hide
Shipping Manager
Littleton, Colorado, United States
$95k-$167k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Manage a shipping/traffic team, oversee domestic and international shipments, ensure DG/HazMat compliance, negotiate carriers, maintain audit-compliant systems, and obtain/maintain TS/SCI security clearance.
SAP, AS9100, IATA, ICAO, 49CFR, BigJoe
1mo
Save
Mark Applied
Hide
Staff Software Engineer (Web Automation & Open Banking Infrastructure)
California or Colorado or United States
RemoteFull Time
Zero Hash
Zero Hash: Infrastructure platform for crypto, stablecoins, and tokenized assets.
10+ YOE10+ years engineering experience building advanced web automation and browser-internal systems; deep TypeScript/JavaScript expertise; backend experience (Golang/Node.js/Python); security fundamentals; distributed systems knowledge.
TypeScript, JavaScript, Golang, Node.js, Python, Chrome Manifest V3, iOS WKWebView, Android WebView, WebSockets, WebAuthn, Passkeys
1mo
Save
Mark Applied
Hide
Quality Engineer II
Centennial, Colorado, United States
$81k-$111k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
2+ YOEBachelor's degree or equivalent, typically 2+ years related experience, basic RCCA/CAPA knowledge, internal audit training, ability to obtain and maintain U.S. security clearance; familiarity with GD&T, IPC, and NASA requirements preferred.
Geometric Dimensioning and Tolerancing (GD&T), IPC, NASA, ISO 9001, Failure Mode and Effects Analysis (FMEA), Statistical Process Control (SPC)
1mo
Save
Mark Applied
Hide
Vice President, Business Development
Berthoud, Colorado, United States
$280k-$330k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
12+ YOESenior sales leader with minimum 12 years in aerospace/defense sales or capture, proven federal procurement success, FAR/DFARS knowledge, team leadership, ability to obtain U.S. security clearance, onsite in Berthoud CO with extensive domestic and some international travel.
2mo
Save
Mark Applied
Hide
Director of Internal Audit, Technology
Denver, Colorado, United States
$149k-$182k/yr OnsiteFull Time
Zayo Group
Zayo Group: Provides high-capacity fiber networks and communications infrastructure.
10+ YOE10+ years IT/cybersecurity audit/risk/assurance; leadership experience; bachelor’s in Computer Engineering, Information Systems, or Computer Science.
Cloud platforms, IAM, Network security, Data protection, Audit methodology, Analytics, Automation
3mo
Save
Mark Applied
Hide
Game Administrator (Athletics and Activities) - Internal Only
Buena Vista, Colorado, United States
$2k/mo OnsiteSeasonal
Buena Vista School District R 31
Buena Vista School District R 31: Provides public K-12 educational services and student support programs.
Oversee safety and operations of athletic events; coordinate facilities, concessions, gate receipts; liaise with officials; supervise crowd control and emergency procedures.
Radio communication, Audio equipment, Scoreboards, Lighting, Security devices
1mo
Save
Mark Applied
Hide
Sr Manager, Internal Audit - Technology
United States or California or Colorado or Hawaii or Illinois or Minnesota or Vermont or Massachusetts or Maryland or District of Columbia or New Jersey or New York or Ohio or Washington or Albany County or Cleveland or Spokane
$121k-$230k/yr HybridFull Time
Farmers Insurance
Farmers InsuranceSIX Swiss Exchange: ZURN: Provides insurance for vehicles, homes, and businesses.
7+ YOE7+ years IT audit/technology risk experience, leadership experience, CISA/CISSP/CISM/CRISC preferred, strong knowledge of ITGCs, cloud security, IAM, control testing, and analytical and communication skills.
2w
Save
Mark Applied
Hide
International Trust Operations Manager
Ireland or Seattle or Vancouver or Austin or Boulder or Ankeny or Reading or Ho Chi Minh City
OnsiteFull Time
Absolute Security
Absolute Security: Provides self-healing endpoint security and zero trust networking solutions.
3+ YOE3–5 years GRC/audit/compliance or trust operations experience, familiarity with SOC 2/ISO 27001, GDPR, customer security questionnaires, risk and third-party assessments, strong communication and audit support skills.
Claude, Copilot
21h
Save
Mark Applied
Hide
Desktop Support Technician - Denver ( DEN ) International Airport
Denver, Colorado, United States
$50k-$52k/yr OnsiteFull Time
ESP Global Services
ESP Global Services: Provides global managed IT support and infrastructure services.
1+ YOE1-3 years helpdesk/desktop support experience with Windows and Mac, ability to troubleshoot hardware/software/networking and perform onboarding/offboarding tasks; CompTIA A+/Network+/Security+ or equivalent.
Windows, Mac, Android, iOS, IPAD, DSS
2w
Save
Mark Applied
Hide
College Financial Representative, Internship Program
Boulder, Colorado, United States
$500-$1k/yr OnsiteIntern
Northwestern Mutual
Northwestern Mutual: Provides life insurance, wealth management, and financial planning services.
0+ YOEFull-time college student (juniors/seniors preferred), entrepreneurial and sales interest, strong time-management and communication, eligible for state risk product licensing and securities registrations, background check required.