Security Engineer - Detection & Response

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 the role

As a Security Engineer, Detection & Response, you will run security operations for Vannevar Labs. This includes engineering detections, investigating and responding to threats, and ensuring we can operate securely for our customers. You will work closely with our IT, security, and DevOps teams as well as collaborate with our security vendors to implement robust security monitoring, alerting, incident response, disaster recovery, and threat hunting processes. Your expertise will be crucial in defending against security threats and ensuring our systems and data remain secure.

What you’ll do

• Build and run security monitoring, incident response, and vulnerability management for corporate IT assets

• Create and tune detections in our SIEM and EDR based on threat intelligence

• Lead incident response efforts, including investigation, containment, eradication, and recovery

• Help design and implement security controls to support certification efforts

• Build, document, and execute continuous monitoring processes

• Coordinate with internal stakeholders and external security services

• Identify risks to corporate assets and implement remediations

• Stay up to date with emerging technologies, trends, and best practices

What you should have

• Ability to design and run lightweight, metrics-driven security operations in a small team/startup environment

• Practical knowledge of Digital Forensics and Incident Response (DFIR)

• Familiarity with CrowdStrike Falcon EDR and NextGen SIEM, Microsoft 365, and AWS

• Experience mapping, testing, and improving detections using frameworks like MITRE ATT&CK

• Proficiency with Python and CrowdStrike Query Language

• Strong problem-solving, teamwork, and communication skills

What we offer

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.