Administrative Assistant

TENEX.AI; United States; On-site; USD 65,000 - 90,000; Full time

Job summary

TENEX.AI, a fast-growing AI-native MDR startup, is seeking a proactive Executive Administrative Assistant to serve as the backbone of the leadership team. You’ll act as gatekeeper and strategic partner to the C-Suite, freeing executives to focus on scaling the business while you own day-to-day operations.

This role requires mastery of calendars, travel logistics, and Google Workspace, plus discretion and adaptability in a rapidly changing startup.

Qualifications

• 2+ years of experience supporting senior executives.
• Google Workspace proficiency including Docs, Sheets, Slides, and Drive.
• Outstanding time management and prioritization of a large to-do list.
• Ability to adapt in a scaling startup environment.
• Discretion with sensitive company and personnel information.

Responsibilities

• Proactively manage complex, high-volume calendars for the C-Suite.
• Coordinate domestic and international travel with last-minute changes.
• Utilize Google Workspace to create reports and keep filing systems organized.
• Serve as primary point of contact for internal and external stakeholders.
• Help build scalable operations playbooks and support ad-hoc projects.

Skills

C-Suite experience

Elite time management

Adaptability

Discretion

Tools

Google Workspace

Job description

Company Overview:

TENEX is an AI-native, automation-first, built-for-scale Managed Detection and Response (MDR) provider. We are a force multiplier for defenders, helping organizations enhance their cybersecurity posture through advanced threat detection, rapid response, and continuous protection. Our team is composed of industry experts with deep experience in cybersecurity, automation and AI-driven solutions. Backed by leading investors, we are rapidly growing and seeking top talent to join our mission of revolutionizing the AI-Native MDR landscape.

We’re a fast growing startup backed by industry experts and top tier investors led by Crosspoint Capital Partners and also backed by Shield Capital, DTCP (formerly Deutsche Telekom Capital Partners), Deepwork Capital, and the Florida Opportunity Fund. Seed round led by Andreessen Horowitz (a16z). As an early employee, you’ll play a meaningful role in defining and building our culture. Get in on the ground floor. We’re a small but well-funded team that just raised a substantial round - joining now comes with limited risk and unlimited upside.

Culture is one of the most important things at TENEX.AI - explore our culture deck at culture.tenex.ai to witness how we embody it, prioritizing the irreplaceable collaboration and community of in-person work.

Location: We prefer this person to sit in our Scottsdale AZ office

The Opportunity

Are you a master of organized chaos? Do you pride yourself on being three steps ahead of everyone else? We are a fast-growing startup looking for a high-energy, proactive Executive Administrative Assistant to act as the backbone of our leadership team.

In this role, you won’t just be "managing calendars" - you’ll be the gatekeeper and strategic partner to our C-Suite, ensuring our executives can focus on scaling the business while you handle the mission-critical details of our daily operations.

Key Responsibilities

• Calendar Mastery: Proactively manage complex, high-volume calendars for the C-Suite. You’ll resolve scheduling conflicts before they happen and ensure every meeting has an agenda.
• Startup Logistics: Coordinate end-to-end domestic and international travel, including flights, lodging and ground transportation, often with last-minute changes.
• Google Workspace Expert: Utilize the full Google Business Suite (Docs, Sheets, Slides, Drive) to create reports, manage shared filing systems, and keep the team synchronized.
• Communication & Customer Service: Serve as the primary point of contact for internal and external stakeholders. You’ll represent the executive team with a polished, helpful, and professional attitude.
• Ad-hoc Project Management: Help build the "playbook" for our scaling operations. This includes everything from expense reporting to organizing team off-sites and investor meetings.

What You Bring to the Table

• C-Suite Experience: At least 2 years of experience supporting senior executives, preferably in a fast-paced startup or tech environment.
• Google Suite Proficiency: You don’t just use Gmail; you know how to leverage Sheets for tracking and Drive for impeccable file organization.
• Elite Time Management: You have a "get it done" mindset and the ability to prioritize a massive to-do list without dropping the ball.
• Adaptability: You thrive in the ambiguity of a scaling company. When plans change (and they will), you know how to pivot.
• Discretion: You handle sensitive company and personnel information with the utmost confidentiality.

Why Join Us?

• Opportunity to work with cutting-edge AI-driven cybersecurity technologies and Google SecOps solutions.
• Collaborate with a talented and innovative team focused on continuously improving security operations.
• Competitive salary and benefits package.
• A culture of growth and development, with opportunities to expand your knowledge in AI, cybersecurity, and emerging technologies.