Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Security Engineer II, DCO Engineer (TS/SCI, Onsite)

$88.6k - $147.6k

Deloitte LLP

Our Deloitte Cyber team understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our clients navigate the ever-changing threat landscape. Through powerful solutions and managed services that simplify complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success.

Recruiting for this role ends on June 19th, 2026.

Work You'll Do

  • Require a Defensive Cyber Operations (DCO) SME with a desire to actively defend the mission systems critical to our national defense. As an engineer the candidate will lead individuals towards common goals and work with engineers to apply extensive expertise on multiple complex work assignments.
  • Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks.
  • Leads the development of DCO methodologies and presents solutions to problems. Contributes to deliverables and performance metrics where applicable.
  • Consults on IT and cyber defensive architecture and technologies.
  • Assesses assigned cyber key terrain to thoroughly understand the mission, architecture and associated threat.
  • Advises on technical design and implementation of DCO capabilities required to effectively protect, detect and respond to cyber threats and attacks.
  • Researches cyber defense technologies for best fit based on mission, architecture and current threat.
  • Leads the design, implementation, configuration and/or tuning of cyber defensive technology.
  • Authors documentation to include SOPs, checklists, implementation guides, architecture diagrams, crew binders, etc. to support DCO. Adapts technologies to meet the mission architecture and threat.
A successful candidate would possess these skills:
  • Ability to work independently and collaborate as part of a team
  • Effective written and verbal communication skills
  • Meticulous attention to detail and quality of work product
  • Ability to build and sustain professional relationships
  • Ability to lead projects or workstreams
  • Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment
  • Strong interpersonal skills and professional demeanor
  • Ability to meet deadlines
  • Ability to provide clear guidance to others

The Team

Deloitte's Government & Public Services (GPS) practice - our people, ideas, technology and outcomes - is designed for impact. Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise.

Our Enterprise Security offering embeds security in all aspects of digital transformation by securing a client's technical backbone while enabling secure digital transformation. Includes security architecture, secure development and deployment, end-to-end cyber cloud capabilities, application security, and security for emerging technologies and connected products.

The Project Delivery Talent Model is designed for professionals with specialized skills that align to a current client need. Team members focus on delivering services to clients, without additional expectations related to business development or promotion. Their employment is tied to their role on a project, and they are eligible for a benefits package that is competitive for project delivery-focused professionals.

Qualifications

Required :
  • Bachelor's degree.
  • Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.
  • Active TS/SCI clearance.
  • Ability to work onsite in Aurora, CO.
  • 5 years of technical experience in cyber-defense or cyber security related fields (e.g., engineering, networking, systems integration, solutions etc.).
  • Experience years must come from at least 2 of the following areas:
    • Container or virtual environments (e.g. Docker, Kubernetes, VMware, AWS)
    • In-band and out-of-band test access points for network traffic collection and aggregation (e.g. Gigamon)
    • Data storage solutions (e.g. NFS storage, distributed storage, Ceph Ruck storage, etc.) -Data-analysis toolsets (e.g. Elastic Search, Logstash, Kibana, Splunk, etc.)
    • Agile frameworks for software development, -Linux operating systems (Red Hat, Kali, etc.)
    • Windows operating systems
    • Network infrastructure
    • Security applications (Security Orchestration, Automation, and Response [SOAR], Security Information and Events Management [SIEM], Intrusion Detection Systems [IDS], etc.)

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $88,600 to $147,600.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.
Vacancy posted 15 hours ago
Similar jobs that could be interesting for youBased on the Security Engineer II, DCO Engineer (TS/SCI, Onsite) in Colorado vacancy
  • $144.5k - $195.5k

     ...SYSTEMS ENGINEER SENIOR At GDIT, you are trusted to deliver secure, reliable virtual desktop capabilities supporting critical Government missions...  ...management. WHAT YOU’LL NEED: Active TS/SCI clearance with poly. DoD 8570 IAT Level II compliance (Security+ CE, SSCP, GSEC,... 
    Suggested
    Temporary work
    Flexible hours

    General Dynamics Information Technology

    Colorado Springs, CO
    1 day ago
  • $114.75k - $155.25k

     ...Possess: Top Secret SCI + Polygraph...  ...Description: The TEMPEST Security Specialist assists the...  ...effectively. The TEMPEST engineer will product TSS...  ...Security Clearance Level: TS/SCI w/Polygraph • Preferred...  ...Options: Onsite Work Location:... 
    Suggested
    Temporary work
    For contractors
    Work at office
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Aurora, CO
    1 day ago
  • $75k - $260k

     ...provider in Aurora, Colorado, is seeking candidates for various engineering roles, from entry-level to senior positions. Key...  ...operations and mentoring technical teams. The roles require an active TS/SCI w/Poly and offer a competitive salary range from $75,000 to $2... 
    Suggested

    International Executive Service Corps

    Aurora, CO
    2 days ago
  •  ...component of our nation’s safety and security. Make an impact by using your...  ...Job Description SYSTEMS ENGINEER SR PRINCIPAL GDIT is your...  ...What you’ll need: Active TS/SCI clearance with CI Polygraph Meet DoD 8570 IAT Level II requirements (e.g. Security+ CE... 
    Suggested

    General Dynamics Information Technology

    Colorado Springs, CO
    3 days ago
  •  ...component of our nation’s safety and security. Make an impact by using your...  ...Job Description SYSTEMS ENGINEER SR PRINCIPAL GDIT is your...  ...WHAT YOU’LL NEED: Active TS/SCI clearance with Polygraph Meet DoD 8570 IAT Level II requirements (e.g. Security+ CE... 
    Suggested

    General Dynamics Information Technology

    Colorado Springs, CO
    5 days ago
  •  ...seeking a Junior Penetration Tester to support a government customer in Denver, Colorado. Candidates must have an active Top Secret/SCI clearance and preferably OSCP certification. The role involves performing vulnerability scanning, identifying vulnerabilities, and requires... 

    Cyber Defense Technologies

    Denver, CO
    2 days ago
  • $175k - $250k

     ...'ll Have Seeking experienced offensive security professionals to conduct security assessments...  ...able to obtain and maintain an Active TS/SCI with poly, US citizenship required...  ...certifications Experience with reverse engineering and exploit development Background in offensive... 
    Full time
    Contract work
    Work experience placement
    Immediate start

    GRVTY

    Boulder, CO
    1 day ago
  • $105k - $155k

     ...missions to combat climate change, national security, and exciting new technology...  ...James Webb Space Telescope. GNC ENGINEER II/ SENIOR GNC ENGINEER I - MISSION FORMULATION...  ...QUALIFICATIONS WOULD BE NICE TO HAVE: ~ Active TS/SCI clearance ~ Experience with... 
    Permanent employment
    Local area

    Rocket Lab

    Littleton, CO
    1 day ago
  • $130k - $200k

     ...generation solutions to support the national security space enterprise. Built on more than six...  ...for a  Senior Computer Vision AI/ML Engineer . As a CV AI/ML Engineer, you will...  ...developing/training AI/ML models  ~ Active TS/SCI U.S. Government Security Clearance... 
    Full time
    Temporary work
    Work at office
    Remote work
    Visa sponsorship
    Relocation package
    Flexible hours

    Arka Group, L.p.

    Aurora, CO
    15 hours ago
  • $68.9k - $131.1k

     ...S75 Position Role Type Onsite U.S. Citizen, U.S. Person,...  ...transferable U.S. government issued security clearance is required prior...  ...Security Clearance Type TS/SCI - Current Security...  ...years of experience and renowned engineering expertise to meet the needs of... 
    Full time
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation
    Relocation package
    Flexible hours

    Raytheon

    Aurora, CO
    29 days ago
  • $86.8k - $165.2k

     ...Senior Systems Engineer Raytheon is seeking a Senior Systems Engineer: Location...  ...An active and transferable TS/SCI CI Poly U.S. government issued security clearance is required prior to start...  ...definition as you apply for this role. Onsite: Employees who are working in... 
    Full time
    Temporary work
    For contractors
    Work experience placement
    Remote work
    Relocation package
    Flexible hours

    Raytheon

    Aurora, CO
    2 days ago
  • $86.8k - $165.2k

     ...S75 Position Role Type: Onsite U.S. Citizen, U.S. Person,...  ...transferable U.S. government issued security clearance is required prior...  ...Type: DoD Clearance: TS/SCI Security Clearance Status:...  ...years of experience and renowned engineering expertise to meet the needs... 
    Contract work
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation
    Flexible hours

    RTX

    Aurora, CO
    5 days ago
  •  ...External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or...  ...U.S. government issued security clearance is required prior to...  ...Security Clearance Type: TS/SCI with CI Poly - Current Security...  ...years of experience and renowned engineering expertise to meet the needs... 
    Full time
    For contractors
    Relocation package

    Raytheon

    Aurora, CO
    2 days ago
  •  ...component of our nation’s safety and security. Make an impact by using your...  ...SITE RELIABILITY ENGINEER (SRE) Own your opportunity...  ...Required: ~ CLEARANCE: Active TS/SCI a favorable Polygraph ~...  ...citizenship required LOCATION: Onsite Preferred: ITIL v4... 

    General Dynamics Information Technology

    Colorado Springs, CO
    a month ago
  • $94.35k - $129.72k

     ...of living. Join our team! As a Systems Engineer II, you will build upon foundational skills...  ...Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR...  ...Top Secret U.S. Security Clearance with SCI Eligibility. Essential Functions:... 
    Full time
    Work experience placement

    Sierra Nevada Corporation

    Englewood, CO
    8 hours ago
  • $80k - $120k

     ...invaluable to our work. We’re working onsite 5 days a week as part of our...  ...as we work together to engineer the extraordinary. Act boldly...  ...a Supplier Quality Engineer II, you’ll play a pivotal role in...  ...such as bank account or Social Security details) during early stages of... 
    Full time
    H1b
    Local area
    Immediate start
    Flexible hours

    Medtronic

    Boulder, CO
    1 day ago
  •  ...and defeating new and advanced security techniques. Projects are...  ...coordination with customers. All our engineers write code, but many of our...  ...Role Type This position is an onsite role Required Skills Ability to obtain a U.S. Government TS/SCI Clearance Experience with C or... 
    Work experience placement
    Flexible hours

    Nightwing

    Antonito, CO
    5 days ago
  • $87.1k - $157.45k

     ...is seeking an experienced Secret cleared Information Systems Security Engineer (ISSE) to join our team in support of the United States Space...  ...an active DoD Secret clearance with the ability to obtain TS/SCI clearance. Minimum of 4 years of experience in cybersecurity... 
    Local area
    Immediate start
    Remote work

    Leidos

    Denver, CO
    1 day ago
  • $170k - $230k

     ...missions to combat climate change, national security, and exciting new technology...  ...missions.  PRINCIPAL NETWORK SOFTWARE ENGINEER Rocket Lab is looking for a driven Principal...  ...characterization, and interface management ~Active TS/SCI clearance ~U.S citizenship required due... 
    Permanent employment
    For contractors
    For subcontractor
    Work at office
    Local area

    Rocket Lab USA

    Littleton, CO
    a month ago
  • $94k - $118k

     ...missions to combat climate change, national security, and exciting new technology...  ...space missions SPACECRAFT OPERATIONS ENGINEER II Based on site at our Littleton, CO...  ...integrate software and hardware systems TS/SCI Clearance This position may require... 
    Permanent employment
    Local area
    Shift work

    Rocket Lab

    Littleton, CO
    5 days ago
  •  ...Description: The Information Technology Engineering LLC (ITEC) is seeking a Senior Cyber Security Engineer to join our Cyber...  ...and integrity. Security Clearance: TS/SCI CI poly required....  ...800‑171. DoD 8570.01‑M IAT Level II compliant certification (e.g., Security+... 
    Full time

    Information Technology Engineering Corporation

    Denver, CO
    1 day ago
  • $144.6k - $241k

     ...confidence, and proactively manage to secure success. Recruiting for...  ...As a PROJECT - Lead Security Engineer II on the Enterprise Security...  ...in the future. ~ Active TS/SCI clearance or SCI eligibility...  ...role has a requirement to be onsite 5 days a week in Aurora, CO.... 
    Local area

    Deloitte LLP

    Colorado
    15 hours ago
  • $130k - $170k

     ...Title: Information Systems Security Engineer (ISSE) Belong. Connect. Grow. with KBR!...  ...Work Environment: Location: Onsite Travel Requirements: 10% Working...  ...engineers, and ISSM stakeholders Active TS clearance, SCI eligible required Must be located... 
    Full time
    Contract work
    Local area
    Flexible hours

    KBR

    Colorado Springs, CO
    15 days ago
  • $131.3k - $218.7k

     ...missions to combat climate change, national security, and exciting new technology...  ...ambitious space missions. SENIOR FPGA ENGINEER II Rocket Lab's Optical Systems division...  ...tools such as Altium Designer. Active TS/SCI security clearance. This position... 
    Permanent employment
    Local area

    Rocket Lab

    Littleton, CO
    1 day ago
  • $101.9k - $152.9k

     ...experience, skills, and education among other factors. In addition, this position is eligible for an incentive bonus. The Cyber Security Engineer will lead the design, implementation, administration, and support of complex enterprise security initiatives across Johns... 
    Full time
    Temporary work
    Remote work
    Flexible hours

    Johns Manville

    Denver, CO
    2 days ago
  • $200k - $225k

     ...centric technology solutions in the areas of Cyber Security, Instructional Design and Training, Software Engineering and IT Support Services to improve the security...  ...with MKS2. Sr. Principal Pipeline Engineer - TS/SCI Clearance REQUIRED Location: Aurora, CO... 
    Contract work
    Work experience placement

    MKS2 Technologies

    Aurora, CO
    6 days ago
  • $65k - $90k

     ...solves the next generation of engineering, manufacturing, and operational challenges for space security and sustainability. OUR MISSION...  ...environment   Test Engineer II:  Bachelor’s degree with 2–4+...  ...Location — this role will be fully onsite at our GravityWorks factory in... 
    Permanent employment
    Full time
    Work at office

    True Anomaly

    Denver, CO
    15 hours ago
  • $149.6k - $254.32k

     ...knowledge of ground systems. Fully competent in core systems engineering skills, contributing to effective producibility of designs,...  ...of Education, US Department of Education. A current, active TS/SCI security clearance is required. Knowledge of related disciplines in software... 
    Full time
    Temporary work
    Interim role
    Work at office
    Local area
    Remote work

    BAE Systems USA

    Boulder, CO
    4 days ago
  • $99k - $225k

     ...solutions to enable secure and reliable...  ...possibilities presented by engineering, designing,...  ...cybersecurity best practicesTS/SCI clearanceHS diploma...  ...or GEDDoD 8570 IAT II compliant...  ...classified information; TS/SCI clearance is...  ...customer facility.Onsite : If this position... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    Colorado Springs, CO
    1 day ago
  • $140k

     ...will possess a deep understanding of modern security practices and technologies, combined with...  ...Sign in to set job alerts for “Security Engineer” roles. Denver, CO $142,000.00-$160,000.0...  ...0 1 month ago Cyber Security Engineer I, II, III or Senior Lafayette, CO $120,000.00-... 
    Full time
    Work at office
    Local area
    Monday to Friday
    Flexible hours

    Ledgent Technology

    Denver, CO
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Security Engineer II, DCO Engineer (TS/SCI, Onsite). Be the first to apply!