Senior IT Systems Administrator

Job summary

The Senior IT Systems & Security Administrator will manage the U.S. office's IT infrastructure, including local servers, cloud environments, and end-user support. They are responsible for ensuring cybersecurity compliance, managing identity access, and maintaining system reliability across Microsoft GCC High, Azure Government, and AWS GovCloud platforms.

Job details

About us We are EnduroSat! A fast-growing space scale-up at the forefront of satellite innovation, specializing in advanced software-flexible satellites for commercial, governmental, and scientific endeavors. * This is more than a job, it's a mission We are making space universally accessible and redefining what's possible. * We get things done We take ownership of what we do and we work hard to make a difference. * We are fearless Transparency is our only way forward. We dare to address and resolve issues head-on. * We learn from our mistakes We deliver, take informed risks, and evolve to achieve our goals. What is the role? We are looking for a hands-on Senior IT Systems Administrator to join our Denver, CO team. As the administrator, you will be the primary IT resource for our U.S. office, while ensuring the security, reliability, and compliance of our local and cloud-based technology environments. You will manage end-user support, infrastructure, government cloud platforms, and compliance-related activities while working closely with US teams. Some of your daily tasks will include: * Provide first- and second-line technical support for employees, resolving hardware, software, network, and security-related issues * Install, configure, maintain, and troubleshoot workstations, laptops, servers, printers, mobile devices, and office IT equipment * Administer and support local infrastructure, including servers, storage, switches, routers, firewalls, VPNs, wireless networks, and internet connectivity * Manage Microsoft GCC High services, including Exchange Online, SharePoint Online, Teams, OneDrive, Intune, Entra ID (Azure Active Directory), Conditional Access, and related security controls * Administer Azure Government resources, including identity services, virtual machines, networking, storage, monitoring, security services, and access management * Support AWS GovCloud environments, including account administration, IAM, networking, security controls, monitoring, and cloud resource management * Manage user identity and access across on-premises and cloud environments, including provisioning, deprovisioning, privileged access management, MFA, and role-based access controls * Monitor, maintain, and improve cybersecurity controls across endpoints, infrastructure, cloud platforms, and user accounts * Investigate, respond to, and document security incidents, vulnerabilities, threats, and suspicious activity in coordination with internal stakeholders * Perform vulnerability management activities, including security patching, remediation tracking, configuration reviews, and system hardening * Administer endpoint management and security solutions, including device enrollment, compliance policies, endpoint detection and response (EDR), disk encryption, and software deployment * Conduct regular system backups, restore testing, disaster recovery exercises, and business continuity readiness activities * Monitor system, network, and cloud performance, proactively identifying and resolving operational issues * Support compliance initiatives by maintaining security documentation, system inventories, audit evidence, access reviews, logs, and control records * Manage employee onboarding and offboarding processes, including account creation, permissions assignment, hardware deployment, and asset recovery * Maintain accurate documentation for infrastructure, network diagrams, cloud environments, standard operating procedures, and security processes * Coordinate with external vendors, managed service providers, cloud providers, and internal global teams to support infrastructure and security initiatives * Evaluate and recommend improvements to infrastructure, security controls, cloud architecture, and operational processes * Evaluate and make recommendations regarding modern encryption algorithms and protocols (e.g., AES, RSA, ECC, TLS/SSL) and their application to data-at-rest and data-in-transit, including disk encryption, key management, and certificate handling in line with FIPS 140-2/140-3 requirements. What do we look for? * 5+ years of experience in systems administration, infrastructure engineering, IT operations, cybersecurity, or a similar role * Bachelor's degree in Information Technology, Computer Science, Cybersecurity, or equivalent practical experience * Strong experience supporting Windows-based enterprise environments, including Windows Server and Microsoft 365 * Experience administering Microsoft GCC High environments and understanding of government-regulated cloud environments * Experience managing Azure Government resources, networking, security, and identity services * Experience supporting AWS GovCloud environments, including IAM, networking, logging, and security controls * Strong knowledge of Microsoft Entra ID (Azure AD), Active Directory, Group Policy, DNS, DHCP, and identity lifecycle management * Solid networking expertise including TCP/IP, VLANs, routing, VPNs, wireless networking, firewalls, and network troubleshooting * Experience implementing and managing endpoint security technologies, including EDR, device management, encryption, patch management, and vulnerability remediation * Understanding of security frameworks, compliance requirements, and best practices applicable to government or regulated environments * Experience with system monitoring, logging, incident response, and security event investigation * Experience with Microsoft Intune, Microsoft Defender, Sentinel, Security Center, or comparable security platforms * Experience supporting CMMC, NIST 800-171, FedRAMP, ITAR, DFARS, or similar compliance frameworks * Demonstrated ability to detect, investigate, contain, and remediate security incidents, including documentation, root-cause analysis, and coordination with internal stakeholders * Strong troubleshooting, analytical, and documentation skills * Excellent communication skills with a customer-service-oriented mindset What do we offer? * Health insurance coverage * Matching 401k plan * Generous team performance-based bonus * Aggressive, uncapped commission structure * Full autonomy over your territory-no micromanagement; direct line to leadership for fast decisions * Travel budget, conference attendance, and the tools to win * Collaboration with the EnduroSat offices with occasional international travel Salary range $100,000- 130,000 USD. The salary will likely be within this range although it may differ based on experience level or other factors. Why EnduroSat? * Fast-paced and delivery-focused culture We work with well-defined quarterly based objectives, that allow us to fast-track the progression of our work and improve as we go * Tough engineering challenges & hard-core R&D You will be able to work on unique space technology and build next-gen innovations, while mentored by world-recognized space experts * Constant learning and progression Own your personal growth by navigating through our career progression framework and educational programs At EnduroSat, we embrace diversity and strive to create an inclusive environment where everyone is treated with fairness and respect. We are committed to equal employment opportunities without discrimination against any employee or job applicant on the basis of race, color, religion, sex, national origin, age, disability, sexual orientation, or gender identity. Additionally, this position is suitable for people with disabilities in accordance with the People with Disabilities National Regulation Act, ensuring accessibility and accommodation in the workplace.

What you’ll do

The Senior IT Systems & Security Administrator will manage the U.S. office's IT infrastructure, including local servers, cloud environments, and end-user support. They are responsible for ensuring cybersecurity compliance, managing identity access, and maintaining system reliability across Microsoft GCC High, Azure Government, and AWS GovCloud platforms.

Requirements

Candidates must have at least 5 years of experience in systems administration or cybersecurity and hold a bachelor's degree in a relevant field. Strong technical proficiency in Windows enterprise environments, government-regulated cloud platforms, and compliance frameworks like CMMC and NIST 800-171 is required.

Benefits

• Health insurance • Matching 401k plan • Team performance-based bonus • Travel budget • Conference attendance

Listed skills

• Network Troubleshooting · Preferred
• systems administration · Preferred
• Microsoft 365 · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Systems administration
• Cybersecurity
• Microsoft 365
• Azure Government
• AWS GovCloud
• Microsoft Entra ID
• Network troubleshooting
• Endpoint security
• Vulnerability management
• Incident response
• CMMC
• NIST 800-171
• FedRAMP
• ITAR
• DFARS
• Identity lifecycle management
• End-User Training And Support
• IT Security Documentation
• Azure Active Directory
• Endpoint Detection And Response
• Security Solutions
• NIST 800
• Privileged Access Management
• Patch Management
• Endpoint Security
• Office 365 Exchange Online
• Endpoint Management
• Microsoft Teams
• Infrastructure Security
• Access Controls
• Active Directory
• Amazon Web Services
• Technical Support
• Asset Recovery
• Auditing
• Microsoft Azure
• Backup Devices
• Business Continuity
• Management
• Customer Service
• Cloud Computing Architecture
• Communication
• Computer Science
• Information Technology
• Security Controls
• Cyber Security
• Dynamic Host Configuration Protocol (DHCP)
• Encryption
• System Administration
• Device Management

Job areas

• Technology
• Security & Safety
• Engineering
• Administrative
• Government & Public Sector
• Security Systems Administrator
• Cyber Security Manager / Administrator
• Database and Network Professionals Not Elsewhere Classified
• Information Security Engineers
• Computer Occupations, All Other