Endpoint System Engineer Jobs in Washington (NOW HIRING)

Requisition Number: 29236
Required Travel: 0 - 10%
Employment Type: Full Time/Salaried/Exempt
Anticipated Salary Range: $61,116.00 - $125,000.00
Security Clearance: TS/SCI
Level of Experience: Mid
This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.
HII works within our nation's intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.
Leadership Mindset at HII - Mission Technologies
Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every employee grows, leads, and contributes-regardless of role. It sets the standard for how you can develop yourself and what you can expect from leaders across our organization. We look for candidates who want to grow in alignment with these capabilities:

• Know & Grow Your People - Commit to learning and supporting team success.
• Build Relationships - Communicate openly, collaborate well, and build trust.
• Take Ownership - Deliver on commitments and take pride in your work.
• Customer First - Focus on the mission and those we serve.
• Shape the Future - Bring ideas, curiosity, and continuous improvement.
• Act with Urgency - Take initiative and follow through with purpose.

These capabilities guide how all employees contribute to our shared success across Mission Technologies.
Job Description
HII's Mission Technologies division is dedicated to delivering cutting-edge solutions that advance national security and defense objectives. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.
We are searching for an Endpoint Systems Administrator candidate. The selected candidate will contribute to a high-impact government program focused on enhancing and securing mission-critical systems and environments. Due to the classified nature of the mission and the sensitivity of the operational environment, an active TS/SCI security clearance will be required. Candidate must be willing to obtain and maintain a CI poly.
Endpoint Systems Administrator I: $65,000 - $85,000
Endpoint Systems Administrator II: $80,000 - $105,000
Endpoint Systems Administrator III: $100,000 - $125,000
Essential Job Responsibilities

• Develop, maintain, and optimize standard operating system images for all enterprise endpoint devices.
• Own the full lifecycle of desktop OS platforms, including design, configuration, testing, release, documentation, and continuous improvement.
• Manage deployment, maintenance, and version control for major enterprise applications and core endpoint software suites.
• Lead the patch management process for operating systems, security updates, and application patches; ensure timely, compliant, and well-communicated release cycles.
• Evaluate and integrate new tools, technologies, and methods to improve endpoint stability, security, and performance.
• Collaborate with cybersecurity teams to ensure compliance with security policies, vulnerability remediation, and hardening standards.
• Create and maintain technical documentation, configuration baselines, and operational procedures.
• Provide Tier 3 support for escalated endpoint issues requiring deep technical expertise.
• Monitor system performance, reliability, and patch compliance using enterprise management tools.
• Participate in strategic planning for endpoint technology architecture and long-term modernization efforts.

Minimum Qualifications
5+ years of progressively responsible endpoint administration experience.
Demonstrated proficiency and expertise in the following:
- Deploying, configuring, and managing Windows or ThinLinux end-client operating system solutions.
- Installing, configuring, monitoring, and troubleshooting Microsoft and third-party enterprise applications across large endpoint environments.
- Performing comprehensive operating system and application patching via MECM/SCCM, including researching updates, testing in controlled environments, deploying to production, troubleshooting failures, and executing rollback procedures when required.
- Applying, validating, and maintaining security configurations based on Security Requirements Guides (SRGs) and Security Technical Implementation Guides (STIGs) for all supported endpoint platforms.
- Managing endpoint configuration, compliance, and automation through enterprise tools such as MECM/SCCM, Intune, or similar technologies.
- Diagnosing and resolving escalated endpoint issues requiring advanced technical knowledge of OS internals, application behavior, and configuration dependencies.
- Performing post-deployment remediation and cleanup patching using PowerShell or similar scripting tools to automate updates, enforce configuration baselines, and resolve inconsistent patch states.
TS/SCI clearance required with ability to obtain CI Poly
Must meet DoD 8140/CSWF for 451-Intermedediate or be willing to obtain the appropriate credential within 6 months
Preferred Requirements
Formal training or vendor certifications related to operating system administration or MECM/SCCM.
Experience automating endpoint management tasks using PowerShell or similar scripting tools.
Familiarity with modern endpoint management solutions such as Intune or Autopilot.
The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.
Meet HII's Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense - the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that's right for you. Apply today. We look forward to meeting you.
To learn more about Mission Technologies, click here for a short video: https://vimeo.com/732533072
HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.
Why HII
We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.
Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
Do You Need Assistance?
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to buildyourcareer@hii-co.com and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.