Senior Staff / Senior Cybersecurity Engineer (Clearance Required)
- Salary
- $125,000 - $193,000 / year
- Level
- Staff
Not stated in the posting: work type, visa.
Open. First seen 22 October 2026.
About the role
SciTec, a Firefly Aerospace company is a dynamic leader in delivering advanced sensor data processing technologies and scientific instrumentation capabilities in support of National Security and Defense, and we are growing our creative team! We support customers throughout the Department of Defense and U.S. Government in building innovative new tools to deliver unique world-class data exploitation capabilities.
Important Notice: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Applicants that do not meet this requirement will not be considered.
SciTec has immediate opportunities for an experienced Senior Cybersecurity Engineer to work in our Boulder, CO office.
Responsibilities:
- Participate in security development, configuration, and auditing at different environments
- Harden and secure program infrastructure assets, including servers, network devices, storage systems, and supporting platforms
- Develop and maintain secure change management processes and documentation
- Coordinate work for individual tasks across multiple functional technical teams
- Participate in security controls related to CI/CD work
- Participate in STIG and ATO audit processes
- Create and maintain SIEM queries in response to emerging threats around environment.
- Ensure logging, monitoring, and access controls meet security and compliance requirements
- Identify and mitigate operational cybersecurity risks
- Support incident response preparation, mission resiliency, and operational continuity planning efforts
- Collaborate security implementations and documentation across program teams
- Other duties as assigned
Requirements
- Combined total of 7+ years in system administration, network engineering, and cybersecurity
- 3+ years as a system administrator or with direct experience security RedHat environments
- DoD 8570 IAT Level II Certification
- Secret clearance and ability to obtain TS/SCI
- Experience securing development and operations environments
- Experience with ACAS vulnerability scans, OpenSCAP, Anchore
- Experience with configuring alerting for SIEM tools
- Experience with Security Technical Implementation Guides ( STIGs ) and applying them
- Experience decomposing high-level operational requirements into functional definitions, verification objectives, and full system specifications, and identifying enabling and critical technologies, constraints, and risks
- Knowledge of ATOs and other government compliance frameworks
- Applicants MUST be willing to work on-site from various sites as-needed in the Boulder and Denver area
- Detail oriented
- Strong oral and written communication skills
SciTec's standard text
Candidates who have any of the following skills will be preferred:
- Experience with PKI administration and certificate lifecycle management
- Experience analyzing network configurations and network architecture diagrams
- Specific experience with ACAS scanning, Anchore, OpenSCAP, ClamAV, Bitdefender EDR, or ELK security
- Experience with applying hardening configurations and implementing compliance tools
- Knowledge of network security and incident response procedures
- Experience with technical documentation or tech writing skills
- Secure development lifecycle and secure data lifecycle processes
- Bachelor's degree in related field
SciTec's standard text
Resumes, Cover Letters, and Applications which are generated by AI will not be considered for employment.
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
Benefits
SciTec offers a highly competitive salary and benefits package, including:
- 4% Safe Harbor 401(k) match
- 100% company paid HSA Medical insurance, with a choice of 2 buy-up options
- 80% company paid Dental insurance
- 100% company paid Vision insurance
- 100% company paid Life insurance
- 100% company paid Long-term Disability insurance
- Short-term Disability insurance
- Annual Profit-Sharing Plan
- Discretionary Performance Bonus
- Paid Parental Leave
- Generous Paid Time Off, including Holiday, Vacation, and Sick Pay
- Flexible work hours
The pay range for this position is $125,000 - $193,000/ year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and key skills. This is not a guarantee of compensation.
SciTec's standard text
SciTec is proud to be an Equal Opportunity employer. VET/Disabled.
What this role asks for
Particular to this role
Networking · SIEM
Rare in SciTec's other 45 open postings.
Standard for security roles
Cybersecurity
Common in security postings at any company.
88% of this description is written for the role. The rest is SciTec's standard text, folded away below.
Compared with SciTec's other open jobs.
The team: Defense, Intelligence, & Space Solutions HIRES STEADILY
This role is one of 39 open in Defense, Intelligence, & Space Solutions. 22 were posted in the last 30 days and the oldest in April: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (26 of 39), Kubernetes (21 of 39), Linux (20 of 39), Agile (19 of 39), CI/CD (17 of 39), C++ (16 of 39), Docker (14 of 39)
OTHER ROLES ON THIS TEAM
- Senior Staff / Senior Systems Integration Engineer posted Oct 21
- Application Security Engineer posted Oct 20
- Associate / Staff Software Release Engineer posted Oct 20
- Staff / Senior Staff Test Automation Engineer (Clearance Required) posted Oct 20
- PKI and Certificate Lifecycle Engineer posted Oct 19
- Technical Program Manager (Radar) posted Oct 19
- Project Control Analyst posted Oct 16
- Principal Software Engineer - Data Storage Lead posted Oct 9
- Principal Software Engineer - Deployment Environments Lead posted Oct 9
- Principal Software Engineer - Workload Communications Domain Lead posted Oct 9
- Principal Software Engineer - Deployment Environments Lead posted Oct 9
- Principal Software Engineer - Workload Communications Domain Lead posted Oct 9
- Principal Software Engineer - Data Storage Lead posted Oct 9
- Aerospace Systems Engineer posted Oct 6
- System Security Architect (Clearance Required) posted Oct 5
- Platform Software Engineer posted Oct 2
- Senior Staff / Senior Numerical Algorithm Software Engineer posted Sep 30
- Associate / Staff Mission Data Analyst (Clearance Required) posted Sep 29
- Staff / Sr Staff C++ Software Engineer posted Sep 25
- Senior Aerospace Systems Engineer posted Sep 25
- Staff / Sr Staff Test Automation Engineer posted Sep 25
- Staff / Senior Staff Systems Engineer posted Sep 21
- Associate / Staff Digital Systems Engineer posted Sep 21
- Systems Engineering Lead posted Sep 21
- Sr Staff Software Engineer posted Sep 11
- Staff / Sr Staff Python Software Engineer posted Aug 27
- Staff / Senior Staff Test Automation Engineer (Clearance Required) posted Aug 24
- Sr Staff / Senior Software Engineer posted Aug 21
- Systems Engineer - Compute and Software Systems posted Aug 12
- Hardware Integration Engineer posted Aug 4
- Principal Radar Systems Engineer posted Aug 4
- Principal Linux System Administrator (Clearance Required) posted Aug 3
- Senior Numerical Algorithm Software Engineer posted Jul 29
- Lead Application Security Engineer posted Jul 20
- Senior Staff / Senior Machine Learning Engineer posted Jun 25
- Staff / Sr Staff Application Security Engineer posted Jun 1
- Staff / Sr Staff Numerical Algorithm Software Engineer posted May 15
- Staff / Sr Staff C++ Software Engineer posted Apr 16
From the team and dates on SciTec's own job board.
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