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Level 3 Security Jobs in Colorado (NOW HIRING)

GDIT

Wireless Intrusion Detection Specialist Level III

Aurora, CO · On-site

$147K - $199K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Yes Wireless Intrusion Detection Specialist Level III The successful candidate shall deliver ... Security clearance level: TS/SCI with polygraph US citizenship required Desired Experience ...

Acme

Customer Service Level III

Denver, CO · On-site

$16.50 - $22.50/hr

  • Medical

  • Dental

  • PTO

Working knowledge of enterprise integrations including batch interfaces and Web Services * IT systems and networking experience with exposure to underlying security issues * Demonstrated analysis ...

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Level 3 Security information

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How much do level 3 security jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for level 3 security in Colorado is $20.01, according to ZipRecruiter salary data. Most workers in this role earn between $16.15 and $19.71 per hour, depending on experience, location, and employer.

What is a Level 3 Security officer?

Level 3 Security officers are highly trained security professionals who are authorized to carry firearms and have advanced skills in handling security situations. They typically complete additional training beyond lower-level security licenses, including firearms proficiency, emergency response, and conflict resolution. Level 3 officers are often employed in roles that require a higher level of responsibility, such as protecting high-value assets, working in armed security positions, or serving as supervisors for other security staff.

What types of incidents might a Level 3 Security officer handle, and how do they typically collaborate with other teams during these situations?

Level 3 Security professionals are often responsible for responding to complex security incidents such as advanced persistent threats, data breaches, or sophisticated malware attacks. During these situations, they work closely with IT, legal, and compliance teams to investigate, contain, and remediate threats. Effective communication and coordination are critical, as Level 3 Security specialists may also guide junior security analysts and interface with external partners or law enforcement. Their role often involves providing detailed incident reports and recommending improvements to prevent future incidents.

What are the key skills and qualifications needed to thrive as a Level 3 Security officer, and why are they important?

To thrive as a Level 3 Security Officer, you need advanced knowledge of security procedures, risk assessment, and emergency response, often backed by a Security Guard License (Level 3) and relevant experience. Familiarity with surveillance systems, access control technologies, and incident reporting software is typically required. Strong situational awareness, leadership, and excellent communication skills help in managing teams and responding effectively to incidents. These skills and qualifications are crucial for ensuring safety, minimizing threats, and maintaining order in high-risk environments.

What is the difference between Level 3 Security vs Level 2 Security?

AspectLevel 3 SecurityLevel 2 Security
CertificationsSecurity Guard License, Basic Security TrainingSecurity Guard License, Basic Security Training
Work EnvironmentHigh-security facilities, access control pointsCommercial buildings, retail stores
Employer & Industry UsageSecurity firms, corporate security

Level 3 Security personnel typically handle higher-risk environments requiring advanced training and certifications compared to Level 2 Security. They often work in high-security facilities and are responsible for more complex security tasks, whereas Level 2 Security staff focus on general security duties in commercial settings. Understanding these differences helps employers and job seekers identify the appropriate security level for specific roles.

What is a level 3 security guard?

A Level 3 security guard is a trained security professional responsible for patrolling, monitoring, and protecting property and personnel. They often have advanced training, may operate security equipment, and are authorized to handle more complex security situations compared to lower levels.
Level 3 Security jobs near you
Infographic showing various Level 3 Security job openings in Colorado as of August 2026, with employment types broken down into 86% Full Time, 11% Part Time, 1% Temporary, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $41,630 per year, or $20 per hour.

Proposal Analyst - Level 3 or 4

Northrop Grumman Corporation

Aurora, CO • On-site

$117K - $176K/yr

Full-time

Medical, Life, PTO

Re-posted 6 days ago

Northrop Grumman rating

8.2

Company rating: 8.2 out of 10

Based on 364 frontline employees who took The Breakroom Quiz

90th of 540 rated manufacturers

Job description

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: Top SecretTRAVEL: NoDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

Expand your horizons, advance your career, and contribute to a secure future for generations. Northrop Grumman's Space Sector invites you to bring your pioneering spirit to our collaborative teams. As a Proposal Analyst - Level 3 or 4, located in Aurora, CO, you'll be a linchpin in missions of paramount importance, defining the art of the possible from day one. This position is 100% onsite and cannot accommodate telecommute work.

This position will work a 9/80 schedule, with every other Friday off. This position can be filled at either a Level 3 or 4.

In this role, the selected candidate will play a key role in the organic and future growth of the business by managing proposal efforts from receipt of Request for Proposal (RFP) though contract award.Our Proposal Analyst is a key member of sole source, competitive sector and/or corporate priority win teams and will act as a key developer of winning bids.

Job Duties & Responsibilities include, but not limited to:

  • Plan and manage Cost and Pricing efforts for proposals.
  • Compiles cost, schedule, and technical elements in the development of proposals in accordance with request for proposal (RFP) specifications, company policies, and Government regulations.
  • Coordinates with contributors from cross-functional organizations to ensure quality proposals and BOEs are submitted within customer deadlines.
  • Works closely with Program Management and Supply Chain Management to ensure supplier quotes comply with requirements.
  • Researches and critically analyzes large volumes of data using spreadsheet and data mining skills to isolate and prioritize key data.
  • Work with the proposal team to develop creative solutions to complex contractual issues.
  • Summarizes and presents detailed proposal information in internal management reviews and customer fact-finding meetings.
  • Develops negotiation strategies and participates as a member of the contract negotiating team.
  • Other duties as assigned.

Basic Qualifications for Level 3:

  • Bachelor's Degree with 5+ years of proposal, pricing or financial related experience - OR - Master's Degree with 3+ years of proposal, pricing or financial related experience
  • Will consider additional 4+ years of experience in lieu of degree
  • Proficiency in Microsoft Excel, PowerPoint, and Word
  • Current, active US Government DoD Top Secret Security Clearance at time of application, with ability to obtain SCI upon hire

Basic Qualifications for Level 4:

  • Bachelor's Degree with 8+ years of proposal, pricing or financial related experience - OR - Master's Degree with 6+ years of proposal, pricing or financial related experience
  • Will consider additional 4+ years of experience in lieu of degree
  • Proficiency in Microsoft Excel, PowerPoint, and Word
  • Current, active US Government DoD Top Secret Security Clearance at time of application, with ability to obtain SCI upon hire

Preferred Qualifications:

  • Current, active US Government DoD TS/SCI Security Clearance
  • Certified Estimating Professional (CEP)
  • Project Management Professional (PMP) Certification
  • Understanding of Earned Value Management and experience with Primavera
  • Experience with probability modeling (@Risk or Crystal Ball)
  • Knowledge of FAR/DFARS and other Government Regulations
  • Proficiency in ProPricer
  • Experience working with Proposals
  • Experience working with Basis of Estimate (BOE) and analyzing BOE quality
  • Experience with advanced Excel functionalities
  • Experience with parametric modeling
  • Experience conducting cost analysis and risk modeling

#LI-VP1

Curious about all the exciting developments with the Northrop Grumman Space Sector? Click the link below:

https://www.northropgrumman.com/space

Working at Northrop Grumman is more than just a paycheck. We offer a comprehensive Total Rewards and benefits package designed to help you thrive at work and in life. For more information on our Total Rewards package, please visit our Total Rewards site.

Northrop Grumman Total Rewards

Primary Level Salary Range: $94,200.00 - $141,200.00Secondary Level Salary Range: $117,500.00 - $176,300.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

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About Northrop Grumman

Sourced by ZipRecruiter

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible.

Industry

Space research administration

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US

Year founded

1939

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