Systems Engineer Senior

About the Program Join a mission-critical, high-visibility program to architect and build the Agency's Enterprise IT environment. This groundbreaking initiative will establish a secure, resilient, and flexible hybrid, multi-cloud ecosystem designed to support national security objectives for years to come. As a key member of the government's technical leadership team, you will have a direct hand in shaping the future of our IT infrastructure, working alongside top-tier commercial vendors like AWS, Azure, and VMware in a government-led integration effort.

Position Summary:
We are seeking a highly experienced and technically exceptional Principal Hybrid Cloud Engineer to serve as a trusted technical advisor in a Systems Engineering and Technical Assistance (SETA) capacity directly supporting the Government Chief Technology Officer (CTO). In this role, you will provide critical oversight, ensuring that all components of the Enterprise IT environment are designed and integrated to form a cohesive, secure, and interoperable system. You will act as the bridge between high-level mission requirements and the complex technical solutions delivered by a diverse vendor community as a senior technical advisor to senior Government representatives.
Key Responsibilities:

• Architectural Oversight:Serve as a technical authority in architectural review boards, evaluating and validating vendor-proposed solutions (from AWS, Azure, VMware, etc.) against the government's master architecture and security requirements.
• Strategic Advisory:Advise the Government CTO and other senior leaders on complex technical matters, translating intricate cloud and security concepts into actionable, data-driven recommendations.
• Systems Integration:Design and document holistic, end-to-end solutions for the Enterprise IT environment, defining data flows, API contracts, and integration patterns for a seamless hybrid and multi-cloud environment.
• Security & Compliance:Architect solutions compliant with the highest levels of security, includingJSIG PL-3/PL-4, Zero Trust (ZT) principles, and Commercial Solutions for Classified (CSfC)at the Top Secret level.
• Vendor Engagement:Act as a key technical liaison between the government and multiple vendors, facilitating technical exchange meetings, de-conflicting competing architectures, and driving towards integrated, consensus-based solutions.
• Problem Resolution:Lead the technical troubleshooting of complex, cross-vendor interoperability issues, acting as the final escalation point for the government program office.

Required Qualifications:

• Security Clearance :Must currently possess an activeTop Secret security clearancewith the ability to obtain and maintain SCI access.
• DoD Compliance:Must meet DoD 8140/8570 requirements for anIAM Level IIIposition. An active(ISC) CISSPcertification is required.

• Experience:
• 12+ years of experience in systems engineering, systems architecture, or solutions architecture.
• Demonstrated experience designing and deploying solutions inclassified (TS//SCI) environments.
• Proven experience with bothAWS and Azurein an architectural or senior engineering capacity.

Desired Qualifications (Highly Valued):

• Deep, hands-on experience architecting and designing solutions according toJSIG PL-3/PL-4andCSfCcapability packages.
• Proven expertise in designing and integratingZero Trust (ZT) architectures.
• AWS Certified Solutions Architect - Professional
• Microsoft Certified: Azure Solutions Architect Expert
• VMware Certified Master Specialist (VCF)or equivalent advanced certification (e.g., VCP-DCV, VCAP).
• Certified Kubernetes Administrator (CKA)or equivalent container orchestration expertise.
• Experience with Infrastructure as Code (IaC) tools such as Terraform or Ansible.
• Prior experience in a SETA or A&AS advisory role, directly supporting a government program office or senior leadership.

Why Join Us? This is a rare opportunity to move beyond a traditional engineering role and become a true technical force multiplier for a critical government mission. You will operate at the strategic level, influencing the direction of a major digital transformation while remaining deeply engaged with cutting-edge technology. If you are a master architect who thrives on solving complex integration challenges and wants to make a lasting impact, we invite you to apply.

The pay range for this position in Colorado is $165,000/year to $195,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled.


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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  
  
  
• Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
  
• Flexible schedules
  
  
• 6% 401k match with immediate vesting up to $9k annually
  
  
• Semi-annual bonus eligibility (July and December)
  
  
• Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
  
• Up to $10,000 in annual educational reimbursement
  
  
• Other company funded benefits, like life and disability insurance
  
  
• Optional zero deductible Blue Cross/Blue Shield health insurance plan
  
  





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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit

MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.