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.
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 DoSystems 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
- 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
- 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
- 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)
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
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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What We Do
Vannevar combines Silicon Valley innovation with former special operators to build AI for real-world national security outcomes. Since our founding in 2019, Vannevar has deployed its technology across 125 missions, safeguarding our service members and improving our country's deterrence. We believe our military service members and intelligence officers deserve access to the best technology American innovation can offer, and we are mobilizing frontier technology for this mission. Our founders have 30 years of combined experience across AI labs, national security strategy, intelligence agencies and special operations. We're supported by a number of leading VCs, including Felicis, DFJ Growth, Point72, Costanoa, and General Catalyst. Vannevar is one of the most capital efficient defense tech companies, reaching early profitability and becoming a defense tech unicorn in 2024.
Why Work With Us
We pride ourselves on being a team of passionate, low-ego professionals who share a commitment to engineering excellence and a genuine concern for the people and AI agents we deliver. Vannevar is a company that truly cares about its people and one of our core principles is "put your wellbeing first".
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We are distributed across the map, but united by the mission. We go where the mission takes us and deliver where others can’t. Honolulu, Seattle, San Francisco, Washington D.C., New York. You decide what's next.
