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Jobs at Four Sea Group, Inc. (Now Hiring) — 4 open

Four Sea Group, Inc. logoFour Sea Group, Inc.

Senior IT & Network Systems Administrator (Part-Time)

Greenwood Village, Colorado, United States · Hybrid

$95k–$130k/yr

Senior+

About the role Four Sea Group is seeking a part-time Senior IT & Network Systems Administrator to manage and support our Microsoft 365, Azure, AWS, endpoint, network, backup, collaboration, and physical office technology…

Skills: Microsoft 365, Azure, AWS, Network Administration, Endpoint Management

Four Sea Group, Inc. logoFour Sea Group, Inc.

Senior Software Engineer – Command & Control

Aurora County, South Dakota, United States · On-site

$152k–$205k/yr

Senior

About the role We are seeking a Senior Software Engineer – Command & Control to support the design, development, integration, and sustainment of software solutions in a secure mission environment. This role is best suite…

Skills: C++, Python, Command and Control (C2), Agile Development, Software Design

Four Sea Group, Inc. logoFour Sea Group, Inc.

Ground Software Integration & Test Engineer

Aurora County, South Dakota, United States · On-site

$128k–$174k/yr

Senior

About the role We are seeking a Ground Software Integration & Test Engineer to support software integration, verification, and test execution for complex satellite ground systems. This role is responsible for identifying…

Skills: Software Integration, Verification Testing, Python, Automated Test Scripts, Root-cause Analysis

Four Sea Group, Inc. logoFour Sea Group, Inc.

Systems Integration & Test Engineer (SEIT)

Aurora County, South Dakota, United States · On-site

$128k–$174k/yr

Senior

About the role We are seeking a Systems Integration & Test Engineer (SEIT) to support site hardware deployment, software integration, checkout, and verification activities for complex mission systems. This role is respon…

Skills: Systems Integration, Verification Testing, Python Scripting, Satellite Ground Software, Root Cause Analysis

Four Sea Group, Inc. logo

Senior IT & Network Systems Administrator (Part-Time)

Four Sea Group, Inc.

Greenwood Village, Colorado, United States • Hybrid

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Senior+

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  • $95k–$130k/yr
  • Part-time
  • ESOP Ownership, Employer-funded Retirement Plan, Paid Time Off, Flexible Time-off Options, Health Insurance, Dental Insurance
  • Posted 24d ago
  • ~40 hrs/week

Responsibilities

Manage and secure Microsoft 365, Azure, AWS, and Juniper network infrastructure for a government contractor environment. Provide endpoint provisioning, vulnerability remediation, and technical support for physical office technology and collaboration tools.

Requirements

Requires 10+ years of experience in systems, network, and cloud administration with strong hands-on expertise in the Microsoft security stack. Must be able to work in a hybrid capacity in the Denver, Colorado area.

Full job description

About the role

Four Sea Group is seeking a part-time Senior IT & Network Systems Administrator to manage and support our Microsoft 365, Azure, AWS, endpoint, network, backup, collaboration, and physical office technology environments.

The ideal candidate has 10+ year of progressive IT, systems administration, network administration, cloud administration, and security operations experience. This is a senior hands-on role for someone who can operate independently, improve security posture, troubleshoot complex issues, support users, and maintain reliable IT operations across a small government contractor environment.

What you'll do

  • Administer and secure Microsoft 365, Azure, Entra ID, Intune, Purview, Defender, Sentinel, Conditional Access, Autopilot, and Windows Update configurations.
  • Manage endpoint provisioning, Windows 11 hardening, vulnerability remediation, CIS benchmark remediation, device compliance, application deployment, and user support.
  • Support AWS services, including IAM / SSO, S3, CloudFront, and CodeDeploy.
  • Administer and troubleshoot Juniper network equipment, JunOS configurations, LAN/WAN connectivity, Wi-Fi, routing, switching, and related network infrastructure.
  • Manage SharePoint permissions, data organization, access controls, and collaboration structure.
  • Support Commvault backups, Zoom for Business, Zoom Rooms, Logitech conferencing equipment, printers, office IT equipment, and other physical technology assets.
  • Support macOS device management, Jamf, Rippling authentication workflows, and general employee technical support.
  • Create and maintain documentation, standard operating procedures, and repeatable technical processes.
  • Support CMMC, NIST SP 800-171, CUI handling, audit evidence collection, and secure separation between multiple environments.
  • Use scripting and automation where appropriate, including PowerShell, JavaScript, Python, and infrastructure-as-code principles.

Required Qualifications

  • 10+ years of relevant experience in IT systems administration, network administration, cloud administration, endpoint management, security operations, or related infrastructure support roles.
  • Strong hands-on experience with Microsoft 365, Azure, Entra ID, Intune, Defender, Purview, Sentinel, Conditional Access, and Windows endpoint management.
  • Experience supporting AWS, enterprise networking, backup operations, collaboration tools, and physical office technology.
  • Ability to troubleshoot complex issues across identity, endpoint, cloud, network, security, and user support areas.
  • Strong documentation skills and the ability to create reliable, repeatable IT processes.
  • Ability to work in the Denver, Colorado area, within a hybrid environment, and provide on-site support when needed.

Preferred Qualifications

  • Experience supporting a government contractor, defense contractor, or regulated environment.
  • Familiarity with CMMC, NIST SP 800-171, CUI handling, GCC High, or Microsoft compliance tooling.
  • Experience with Juniper / JunOS, Commvault, Jamf, macOS, Zoom Rooms, Logitech conference systems, and SharePoint information architecture.
  • Microsoft, CompTIA, AWS, Cisco, Juniper, or security-related certifications.
  • Experience with PowerShell, JavaScript, Python, and infrastructure-as-code concepts.

Salary: The salary range for this role is $45.67–$62.50 per hour. The salary range provided is a good faith estimate representative of all experience levels. Four Sea Group, Inc. considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, key skills, and market conditions.   

Application Deadline: This position is expected to remain open through August 31, 2026. The company may adjust this deadline based on business needs and will update the posting as appropriate.

Benefits: FSG is 100% ESOP-owned, which means our employees share directly in the company’s growth. We offer competitive compensation, a strong employer-funded retirement plan, generous PTO and flexible time-off options, comprehensive health, dental, vision, life, short-term disability, and long-term disability benefits, plus a generous medical stipend that gives employees more choice and flexibility. Our model is intentionally built to keep more value with employees through salary, retirement, benefits, and ownership. You will work alongside experienced engineers and technical leaders on meaningful defense, space, software, systems, and mission support work, with room to grow as a technical expert, mentor, program contributor, or future leader.
  
EEO Statement: Four Sea Group is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, sex, sexual orientation, gender identity or expression, religion, national origin, marital or familial status, age, disability, veteran status, military service or application for military service. 

Related keywords

Microsoft 365AzureAWSEntra IDIntunePurviewDefenderSentinelConditional AccessAutopilotWindows 11CIS BenchmarkIAMS3CloudFrontCodeDeploy

About Four Sea Group, Inc.

LinkedInVisit site

It's the Mission, it's the job, and it's building wealth for your future

Industry
Defense and Space Manufacturing
Company size
51-200 employees
Founded
2012
Headquarters
Denver, Colorado
LinkedIn followers
459

Four Sea Group, Inc. was was founded 2012 by a 12-year veteran of the aerospace industry. Based in Denver, Colorado, we provide technical mission support to meet the needs of a wide range of companies, from start-ups to multinational corporations. Our mission is to provide innovative support to our customers and bring comprehensive solutions to their missions. Our employees enjoy industry-leading opportunities to become visionary leaders, providing optimized and customized solutions to our partners.

Offices: Denver, Colorado, US

View all jobs at Four Sea Group, Inc.

About Four Sea Group, Inc.

LinkedInVisit site

It's the Mission, it's the job, and it's building wealth for your future

Industry
Defense and Space Manufacturing
Company size
51-200 employees
Founded
2012
Headquarters
Denver, Colorado
LinkedIn followers
459

Four Sea Group, Inc. was was founded 2012 by a 12-year veteran of the aerospace industry. Based in Denver, Colorado, we provide technical mission support to meet the needs of a wide range of companies, from start-ups to multinational corporations. Our mission is to provide innovative support to our customers and bring comprehensive solutions to their missions. Our employees enjoy industry-leading opportunities to become visionary leaders, providing optimized and customized solutions to our partners.

Offices: Denver, Colorado, US

View all jobs at Four Sea Group, Inc.

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