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IT Systems Administrator

Remote

Vannevar is a defense technology company building AI to deter our adversaries. In the 21st century, conflict moves at algorithmic speed and foresight equals firepower. Our agentic AI is purpose-built to compete with China—from cross-Strait conflict to gray zone coercion. Trained on the most mission-relevant datasets in defense, our technology models adversary behavior, simulates campaigns, and recommends the best course of action to decision makers. Our AI systems are some of the most trusted in the industry and actively used on the front lines of the Indo-Pacific to keep the peace and save lives.

Exceptional technology starts with exceptional people. Vannevar is a small agile team combining world-class engineers with veteran strategists who bring deep expertise in defense and tradecraft. We’re building a company defined by mission impact, user empathy, and disciplined growth. In just three years, we grew from $3M to $80M in ARR, achieved early profitability, and reached unicorn status—proving that disruption doesn’t require an ego, and staying power doesn’t mean standing still.

About This Role

We have an immediate opening for an IT Systems Administrator responsible for administering, maintaining, and improving the organization’s IT systems and infrastructure. The primary objectives of this role are to ensure the reliability, security, and scalability of IT systems while providing advanced technical support and operational expertise to internal staff.

The ideal candidate will have demonstrated experience with end-user support and a focus on system administration, access management, endpoint and identity platforms, and compliance-driven IT operations. As a Systems Administrator, you will develop deep working knowledge of the company’s systems, tools, and processes and play a key role in improving the effectiveness, security, and maturity of IT operations.

This position supports CMMC compliance efforts by administering IT and security controls, executing compliance-related processes, supporting audits and documentation, and partnering closely with senior IT and security staff on system enhancements and security initiatives.

What You’ll Do

Systems Administration & Security

  • Administer and maintain core IT systems including identity, access, endpoints, and collaboration platforms
  • Manage user identities, permissions, onboarding/offboarding, and access reviews in accordance with best practices and security policies
  • Support compliance efforts and audits (e.g., CMMC, NIST 800-171) and assist with implementation of security controls

Endpoint & Infrastructure Operations

  • Manage macOS, Windows, and VDI endpoints using MDM and endpoint security tooling
  • Oversee endpoint lifecycle including provisioning, patching, hardening, and decommissioning
  • Monitor system health, remediate vulnerabilities, and support continuous security improvement

Support, Documentation & Improvement

  • Provide technical support and escalation for complex system and access issues
  • Maintain system documentation, asset inventory, and audit-ready records
  • Improve reliability, security, and efficiency through automation, tooling, and process refinement

Environment you'll work in

  • Microsoft 365 Suite (GCC High) - Business tools and email
  • Okta/Entra ID – Identity and Access Management
  • MacOS/Windows/VDI Endpoints – MDM Managed
  • Jira Service Desk – Ticket management and tracking
  • Notion – Knowledge base and internal documentation
  • Slack – Primary internal communication tool

What You Should Have

  • 3+ years of experience in IT support, systems administration, or infrastructure-focused roles
  • Strong working knowledge of Windows and MacOS administration
  • Experience administering Microsoft 365 and Entra ID
  • Hands-on experience managing endpoints in an MDM-managed environment (Intune or similar)
  • Ability to work autonomously, prioritize effectively, and take ownership of systems and outcomes
  • This position will require working hours in the eastern timezone

What We Value

  • Experience supporting IT systems in a remote-first environment
  • Understanding of SSO, provisioning, and lifecycle automation concepts (e.g., SCIM)
  • Familiarity with modern authentication methods and related operational considerations (e.g., passkeys, passwordless authentication)
  • Exposure to compliance-driven environments (CMMC, SOC 2, NIST, or similar frameworks)

What we offer

Competitive Salary

The salary range for this position is $85,000- $125,000 + equity. Within the range, individual pay is determined by experience, relevant education, and/or training.

Comprehensive Benefits

  • We’re proud to offer competitive benefits that support our employees. Some key highlights of our benefits package include:
  • Health, dental, and vision insurance
  • Remote friendly with WeWork access
  • Unlimited PTO, shared downtime during the federal holiday calendar, and company-wide off time at the end of each year
  • 401(k) match
  • Lifestyle & wellbeing stipends
  • Salary top-up during military reserve duty
  • Fully paid parental leave
  • Child and pet care reimbursement during travel

Vannevar is an equal opportunity employer, and qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.
 
We encourage candidates from all backgrounds to apply, even if you don't feel like you're a perfect fit. If you're passionate about contributing to our mission, we'd love to hear from you!
 
IMPORTANT NOTICE
We are committed to protecting the privacy of all applicants. Official emails from the company will come from an @vannevarlabs.com domain. Under no circumstances will a legitimate representative from our company contact you to request passwords, financial information, or other sensitive personal data. Please be vigilant of potential scams.

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