Bethesda, Maryland, United States · On-site
$100k–$125k/yr
Join a Company Where Your Work Makes a Difference At ISN, we believe our people are the driving force behind our success. For more than 45 years, we've partnered with over 150 federal agencies to deliver innovative, miss…
Skills: Windows Server, Active Directory, DNS, DHCP, Group Policy
Marriott International Hotels, Inc.Bethesda, Maryland, United States · Hybrid
JOB SUMMARY The HQ Fellowship Program The Marriott International HQ Fellowship Program offers undergraduate fellowships in a variety of departments at Marriott International’s Headquarters in Bethesda, Maryland. For summ…
Skills: Accounting, Finance, Marketing, Communications, Brand Management
Marriott International Hotels, Inc.Bethesda, Maryland, United States · Hybrid
JOB SUMMARY The HQ Fellowship Program The Marriott International HQ Fellowship Program offers undergraduate fellowships in a variety of departments at Marriott International’s Headquarters in Bethesda, Maryland. For summ…
Skills: Accounting, Finance, Marketing, Communications, Brand Management
Bethesda, Maryland, United States · On-site
$28/hr–$38/hr
JOB SUMMARY The Voyage Global Leadership Development Program Voyage: Training tomorrow’s leaders today Marriott International welcomes recent university graduates to experience the career development adventure of a lifet…
Skills: Facilities management, Engineering, Project management, Leadership, Critical thinking
Bethesda, Maryland, United States · On-site
$23/hr–$32/hr
JOB SUMMARY The Voyage Global Leadership Development Program Voyage: Training tomorrow’s leaders today Marriott International welcomes recent university graduates to experience the career development adventure of a lifet…
Skills: Culinary arts, Leadership, Project management, Customer relationship management, Critical thinking
Bethesda, Maryland, United States · On-site
$23/hr–$38/hr
JOB SUMMARY The Voyage Global Leadership Development Program Voyage: Training tomorrow’s leaders today Marriott International welcomes recent university graduates to experience the career development adventure of a lifet…
Skills: Leadership, Critical thinking, Interpersonal communication, Project management, Customer relationship management
Marriott International Hotels, Inc.Bethesda, Maryland, United States · On-site
$21/hr–$23/hr
POSITION SUMMARY Respond and attend to guest repair requests. Communicate with guests/customers to resolve maintenance issues. Perform preventive maintenance on tools and kitchen and mechanical room equipment, including …
Skills: Preventive maintenance, Plumbing, Electrical repair, HVAC maintenance, Carpentry
Bethesda, Maryland, United States · On-site
The YMCA of Metropolitan Washington is one of the largest charities in the DC area. The Y serves as an anchor in the community offering programs and services encompassing youth development, healthy living, and social res…
Skills: Swim coaching, Competitive swimming, Stroke technique evaluation, Safety procedures, Lifeguarding
Bethesda, Maryland, United States · On-site
$17/hr–$18/hr
Description Who We Are: Across North America and all over the world, Mathnasium Learning Centers are committed to teaching children math so that they understand it, master it, and love it. Our world-class curriculum is b…
Skills: Mathematics, Algebra 1, Geometry, Algebra II, Trigonometry
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Surveillance systems monitoring, Access control, Patrolling, Incident reporting, Situational awareness
Bethesda, Maryland, United States · Hybrid
$109k–$175k/yr
The Role: The Clinical Trial Manager provides clinical trial oversight to the assigned clinical trial(s) ensuring deliverables are met in terms of quality, compliance and timing. Strong vendor management is critical for …
Skills: Clinical trial management, Vendor management, Clinical operations, Project management, FDA guidelines
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Grounds maintenance, Landscaping, Irrigation system maintenance, Tree trimming, Shrub pruning
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Warehousing, Inventory Management, Shipping And Receiving, Material Handling, Logistics Operations
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: High-voltage electrical systems, Switchgear, Transformers, Breakers, Relays
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Furniture assembly, Logistics coordination, Vendor management, Project coordination, Facilities management
Bethesda, Maryland, United States · Remote OK
Job Title Coordinator, Retail Communications Job Description Coordinator, Retail Communications Location: Remote Travel: Up to 20% of the time, attending meetings in Washington DC and potential store travel Who We Are At…
Skills: Retail communications, Operations, Content creation, Zipline, Asana
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Fire alarm maintenance, Suppression equipment repair, National Fire Alarm Code, UFC codes, System design plans
Bethesda, Maryland, United States · Hybrid
$122k–$190k/yr
Why Join GEICO? At GEICO, we offer a rewarding career where your ambitions are met with endless possibilities. Every day we honor our iconic brand by offering quality coverage to millions of customers and being there whe…
Skills: Affiliate marketing, Performance marketing, Strategic planning, Budget management, Data analysis
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Surveillance systems, Access control, Situational awareness, Threat assessment, Incident reporting
Bethesda, Maryland, United States · On-site
IAP World Services, an Intrepid Global Solutions company, is a recognized leader in Facilities Management and Operations in support of Defense, Intelligence, and National Security missions Under a major Intelligence Comm…
Skills: Fire protection systems, Sprinkler system maintenance, NFPA 13, NFPA 20, NFPA 25
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
The Systems Administrator will manage and maintain IT infrastructure including servers, networks, Microsoft 365, and voice systems. They are responsible for providing Tier 3 technical support, monitoring system performance, and ensuring security compliance.
Candidates must have 8–10 years of experience in system and network administration with strong expertise in Windows Server and core networking. Preferred qualifications include experience with VMware, PowerShell, and compliance frameworks like NIST 800-171 or CMMC.
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Join a Company Where Your Work Makes a Difference
At ISN, we believe our people are the driving force behind our success. For more than 45 years, we've partnered with over 150 federal agencies to deliver innovative, mission-critical solutions that strengthen government mission and serve the public.
Recognized over 25 times by the Washington Business Journal as one of the 50 Fastest Growing Government Contractors and by the Inc. 5000 as one of the Fastest Growing Private Companies, ISN continues to grow through exceptional service, innovation, and a commitment to excellence. We have earned more than 100 commendation letters from our customers recognizing our commitment to exceptional quality, timely delivery, and unwavering integrity. We take pride in our role as a trusted government partner, delivering innovative solutions that benefit society, strengthen national security, and support mission-critical operations.
At ISN, you'll find more than a job—you'll find an opportunity to build your career, collaborate with talented professionals, and make a meaningful impact supporting important federal missions. We foster a collaborative, inclusive culture where employees are encouraged to learn, grow, share ideas, and contribute to innovative solutions for our customers.
Whether you're just beginning your career or bringing years of experience, you'll join a team that values integrity, accountability, teamwork, and continuous improvement. If you're passionate about making a difference and delivering exceptional results, we'd love to have you on our team.
Why You'll Love Working at ISN
We believe great employees deserve great support. Our comprehensive benefits package includes:
We are seeking a senior-level IT System Administrator with 8–10 years of experience to support
and maintain our IT infrastructure. This role manages servers, networks, Microsoft 365, voice
systems, and network storage appliances while providing advanced technical support.
Key Responsibilities
- Administer Windows servers, Active Directory, DNS, DHCP, and Group Policy.
- Support switches, firewalls, VPNs, and wireless networks.
- Configure and troubleshoot VoIP phones, call routing, and SIP/hosted voice systems.
- Maintain NAS/SAN storage appliances and shared drive environments.
- Manage Microsoft 365, Azure AD/Entra ID, Teams, and SharePoint.
- Provide Tier 3 support and handle complex technical escalations.
- Monitor backups, system performance, security patches, and updates.
- Maintain documentation, SOPs, and asset inventory.
- 8–10 years of experience in system/network administration.
- Strong expertise in Windows Server, Microsoft 365, and core networking.
- Hands-on experience with VoIP systems and network storage appliances.
- Strong understanding of security best practices and patch management.
- Ability to work independently and manage multiple priorities.
Preferred Qualifications
- VMware/Hyper-V experience
- PowerShell scripting
- Experience in compliance environments (NIST 800-171, CMMC)
- Certifications: Security+, Network+, Azure Administrator, CCNA, or similar
Position Summary
This role ensures stable IT operations, secure infrastructure, and advanced support across the
organization. Ideal for a seasoned administrator with broad hands-on experience.
ISN Corporation is proud to be an Equal Opportunity Employer.
We celebrate diversity and are committed to creating an inclusive workplace where all qualified applicants receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, disability, protected veteran status, genetic information, or any other status protected by applicable law.
ISN Corporation maintains a Drug-Free Workplace. All candidates must successfully complete a pre-employment background investigation prior to starting employment.
ISN's Quality Commitment services enhance the capacity of ISN clients’ programs to reach critical mission objectives.
Information Systems and Networks Corporation- Headquartered in Bethesda, Maryland, ISN Corporation is a nationwide provider of specialized professional services to Federal government agencies. ISN's portfolio includes work with over 100 Federal agencies. ISN Corporation is focused on helping federal agencies run programs to ensure the highest level of quality, timeliness, and integrity and to eliminate fraud, waste, and abuse. ISN’s technology-based approaches not only achieve results, but allow our clients and partners to meet their missions with full compliance. •ISN has performed work for over 135 Public Sector clients •Received numerous Quality Awards and Commendations for outstanding work •Recognized as one of the fastest-growing businesses nationally •Named on the Washington Technology Fast 50 •Appraised at CMMI Level III SVC/DEV, ISO 9001, and ISO 14001
Offices: 10411 Motor City Dr. Suite 700, Bethesda, MD 20817, US · N Calussen, Oklahoma City, Oklahoma, US
