Demo

Senior Systems Engineer

SABEL SYSTEMS TECHNOLOGY SOLUTIONS LLC
Boulder, CO Full Time
POSTED ON 11/11/2026
AVAILABLE BEFORE 1/10/2027

Why Sabel Systems

Sabel Systems designs and delivers digital engineering ecosystems for DoW programs, enabling teams to connect data, systems, and personnel within secure, scalable environments. Our solutions empower programs to make faster decisions, close sustainment gaps, and meet the digital acquisition requirements.

Rather than simply proposing transformation, we implement and operate it at scale. Our method is clear: we orchestrate existing tools into a governing system of record, ensuring government ownership of infrastructure and traceable decisions. There’s no vendor lock, no proprietary baselines, and no need for ATO rebuilds during transitions.

Sabel Systems is redefining modern defense acquisition. If you seek to solve complex challenges at scale and want your work to directly accelerate military capability while reshaping the DoW’s approach to digital engineering, this is the place for you.

Complexity Simplified. Mission Amplified.

What You’ll Do

  • Contribute to all phases of a system lifecycle including: CONOPS, requirements, architecture, design, development, integration, test, operations, and maintenance
  • Maintain and develop system artifacts, including requirements, architecture designs, ICDs, use cases, system flow diagrams, and test plans
  • Conduct and/or support Technical Interchange Meetings with external stakeholders
  • Work across cross-functional development teams, government teams, and/or vendors to drive problem resolution and collaboration
  • Support additional activities, such as special studies
  • Interface with the customer, leveraging strong interpersonal skills and attention to detail
  • In some cases, mentor junior and mid-level engineers and fill a leadership role within the team
Qualifications:

What You Bring

Required

  • US Citizen with an active Secret clearance
  • Bachelor of Science degree in Engineering, Mathematics, Physical Sciences, Computer Science (relevant experience may be considered in lieu of education)
  • Minimum of eight (8) years of experience in Systems Engineering 
  • Experience with multiple stages of the program lifecycle (design, integration, test, operations, maintenance)
  • Experience working in multi-disciplinary design and development teams
  • Experience with technical risk identification and management strategies
  • Ability to communicate technical information via oral presentation and written format

Preferred

  • Experience with Jira and Confluence
  • Experience with Overhead Persistent Infrared (OPIR)
  • Experience with Model Based Systems Engineering (MBSE), especially using CAMEO
  • Experience working within an agile workflow

Our Core Values

  • Bias for Action: Decisive. Purposeful. Agile. We move with the speed of relevance to drive impact and progress.
  • Integrity: Respect. Ethics. Transparency. We do what’s right and earn lasting trust.
  • Delivery Excellence: Customer-obsessed. Mission-focused. Quality-driven. We deliver innovative outcomes that exceed expectations.

Our EVP Promise
Join Sabel Systems, where your contributions drive impact, your growth is continuously supported, and your well-being is at the center of how we work. Together we can build the future with purpose. Rewarding Impact. Building Futures Together.

Compensation
Compensation will be determined in partnership with the Hiring Manager and may vary based on factors such as contract and labor category alignment, relevant experience, skills, education, certifications or licenses, and geographic location.

Sabel Systems is committed to offering all employees a competitive benefits and compensation package that is comprehensive enough to meet their goals and needs. Our employees are our most valuable asset, and one of Sabel Systems largest financial investments is our benefits program. As a valued member of the organization, employees are provided with a host of benefits to include healthcare; financial assistance in the event of illness, injury, disability, loss of work, or death; health savings accounts; retirement plans; paid time off; paid holidays; education and training program reimbursement, to name a few.

Equal Employment Opportunity
Sabel Systems is an equal opportunity employer. Our hiring decisions are based solely on qualifications, merit, and business need. We prohibit discrimination and harassment of any kind across all employment practices within our organization. Sabel Systems participates in the E-Verify Employment Verification Program.

Reasonable Accommodation
Sabel Systems is committed to providing equal employment opportunities and ensuring an accessible application process for all candidates. Applicants with disabilities who require reasonable accommodation to participate in the application or interview process are encouraged to contact us at recruiting@sabelsystems.com for assistance.

Salary : $170,000 - $200,000

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