---
title: 'Senior Recruiter at Theori'
canonical: 'https://feeny.ai/job/senior-recruiter-theori-austin-6jbq5f17fa8a'
type: 'job'
last_seen: '2026-10-15'
---

# Senior Recruiter at Theori

- **Company:** Theori
- **Location:** Austin, TX
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-10-05
- **Last confirmed live:** 2026-10-15
- **Apply:** https://jobs.ashbyhq.com/theori/da4bbfb2-cc0c-43b4-9fbb-0cb9b3ee32e8

## Job description

Summary Theori is a global leader in offensive security, founded by the world's most elite hackers. With a decade of unparalleled technical expertise, we're revolutionizing the cybersecurity paradigm with Xint, our AI-native AppSec platform spanning Xint Web (autonomous web app penetration testing) and Xint Code (AI-powered code security). Xint has been featured in The Verge, is in production with customers like Samsung Electronics, and is being adopted by security teams who want hacker-grade testing without hiring an army of pentesters.

We are hiring our first in-house Senior Recruiter to build the recruiting function for our North American team as it scales. You will own full-cycle recruiting across sales, marketing, operations, and engineering, from intake through a new hire's first week, and set up the process, tooling, and hiring manager habits that let us hire well at pace.

You will thrive here if you have built recruiting at an early-stage company, move fast without lowering the bar, and can hold a technical conversation with a security researcher as comfortably as a quota conversation with an account executive.

## Key Responsibilities

- Own full-cycle recruiting for North American roles, from hiring manager intake to signed offer
- Run intake with each hiring manager to agree the profile, scorecard, and interview loop before a role opens
- Source and screen candidates directly, with an early focus on sales, sales engineering, and technical marketing, and give each hiring manager a clear recommendation
- Run Ashby as the system of record, including reporting on time to fill and pass-through rates, and retention and consent settings with our privacy lead
- Coordinate interview loops, keep every candidate informed at every stage, and manage offers with the hiring manager and Operations through to close
- Manage agency and search partners where we use them, including overflow for high-volume roles
- Write and maintain the recruiting SOPs: intake, interview loops, scorecards, offer approval, and candidate communication
- Own the handoff from signed offer to day one: pre-boarding, Gusto and Remote setup, equipment and access requests, and a first-week plan with each hiring manager

## Requirements

- 5+ years of full-cycle recruiting, including in-house experience at a venture-backed startup
- Track record hiring GTM roles (AE, SE, BDR, marketing) in B2B software
- Strong direct sourcing skills, with hires made from outbound
- Hands-on experience running an ATS, Ashby preferred
- Comfortable carrying a high volume of open roles across functions without losing candidate experience
- Clear, direct written communication with candidates and hiring managers
- Based in the US or Canada

## Nice to Have

- Recruiting experience in cybersecurity or developer tools
- Built a recruiting function or process from scratch
- Technical recruiting for security research or engineering roles
- Partnered with executive search firms on senior hires
- Hired across both the US and Canada
- Worked with teams across time zones, including Asia

## What We Offer

## Compensation & Benefits

- Competitive salary + equity
- Health, dental, and vision insurance
- Generous PTO policy
- Remote work
- Laptop + home office stipend
- 401(k) match

## Team Culture

- Build the recruiting function from the ground up
- Tight feedback loops with hiring managers across sales, marketing, and engineering
- Hire for a product with real customers and real press behind it
- Clear documentation and processes
- Collaborative, low-ego team
- Career growth and mentorship

Work-Life Balance

- Flexible hours, remote-first culture
- Focus on outcomes, not hours

Why Join Theori?

- Cutting-edge product: AI-driven security tools that protect real systems
- Smart team: Collaborate with world-class engineers and security researchers
- Growth stage: Join early and help define the culture of our North American team
- Real impact: Shape how AI transforms cybersecurity

## About Theori

## Company Overview
- **One-liner**: Theori is an offensive cybersecurity company that uses AI-powered solutions and elite hacker expertise to secure AI systems, applications, and networks for global clients.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: Austin, Texas, United States (US office); Seoul, South Korea (Korea office)
- **Founded**: 2016
- **Founders**: Not publicly listed (company built by elite hackers with multiple DEF CON wins)

## Core Business
- **Primary industry/industries**: Cybersecurity (offensive security, AI security, application security, blockchain security, security training)
- **Target customers**: Enterprises (B2B) – including Microsoft, Google, Okta, POSCO DX; also government and defense organizations
- **Mission or purpose statement**: “Raising the standard of security at every turn” – Theori tackles the most difficult cybersecurity challenges from an attacker’s perspective and trains the next generation of security leaders.

## Products & Services
- **Xint**: AI-powered application security testing (AST) solution that identifies vulnerabilities with human-level expertise, speed, and cost efficiency. Includes Xint Code for real-time code scanning.
- **αprism**: LLM security monitoring and guard model that continuously monitors prompts and model responses to protect AI interactions.
- **Dreamhack / Dreamhack Enterprise**: Cybersecurity training platform offering interactive, self-paced learning and customizable curricula for enterprises. Includes a paid subscription service and in-house competition management.
- **PatchDay**: Bug bounty platform launched in 2024.
- **ChainLight / ChainLight DART**: Blockchain security audit and risk management services.
- **Fermium-252**: Threat intelligence database.
- **AI Red Teaming**: Expert-led audits covering all angles of AI systems to identify vulnerabilities before exploitation.
- **Relic Protocol**: Chain data attestation protocol (launched 2018).
- **Upside Academy**: Cyber training program (now in its 3rd edition).

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Total Funding – **$15.5 million** (seed round led by K2G Fund, reported in 2025); prior investment from NAVER (2020).
- **Notable Investors/Partners**: K2G Fund (lead), NAVER, POSCO DX (strategic partnership), Okta (strategic cybersecurity partnership).
- **Growth Signals**:
  - Won #1 in DARPA AI Cyber Challenge (AIxCC) Semifinals (2024)
  - 9 DEF CON competition wins
  - Over 50 international hacking competition wins
  - Beta launch of αprism in April 2025
  - Launch of PatchDay bug bounty platform (August 2024)
  - Partnership with POSCO DX for AI-driven security framework (May 2025)
  - Received Presidential Commendation from the President of South Korea (2022)
  - Opened US office in Austin, TX

## Competitive Advantages
- **Elite Hacker Team**: Built by top offensive security experts with proven track records in global hacking competitions (DEF CON, AIxCC).
- **AI-Native Security**: Products like Xint and αprism are purpose-built for the AI era, monitoring and securing LLMs and codebases proactively.
- **Offensive Security Approach**: Tests systems from an attacker’s perspective, identifying vulnerabilities before malicious actors can exploit them.
- **Trusted by Industry Leaders**: Microsoft, Google, and Okta rely on Theori’s research and solutions.
- **Dual Headquarters (US + Korea)**: Allows access to both American and Asian markets and talent pools.

## Strategic Focus
- **AI Security Leadership**: Expanding AI-powered security solutions (Xint, αprism) and AI red teaming services to address emerging threats.
- **Training the Next Generation**: Growing Dreamhack enterprise offerings and Upside Academy programs to build a skilled cybersecurity workforce.
- **Continuous Innovation**: Annual independent research period for employees and ongoing product launches (PatchDay, ChainLight, Fermium-252).
- **Global Expansion**: Building US presence from Austin office while maintaining strong Korea operations.

## Why Work Here
- **Culture Highlights**: “Built by elite hackers” – the company emphasizes hands-on hacking, continuous learning, and ethical transparency. Annual independent research period and support for CTF competitions.
- **Remote/Hybrid/Office Policy**: Hybrid workspace with two offices (Austin, TX and Seoul, Korea). Remote positions available (e.g., AppSec Engineer, Backend Software Engineer).
- **Notable Perks**:
  - Unlimited leave system
  - 1-month sabbatical leave for every 3.5 years
  - Learning stipend and education/personal development stipend
  - Technology stipend
  - Meal allowance, free snacks and drinks
  - Monthly Culture Day
  - Seasonal corporate gifts
  - Annual health screenings (Korea)
  - Support for workplace social clubs
  - Mentoring program for new recruits
  - Military service exemption business (Korea)

## Sources
1. [theori.io](https://theori.io/)
2. [theori.io/about](https://theori.io/about)
3. [theori.io/career/culture](https://theori.io/career/culture)
4. [jobs.ashbyhq.com/theori](https://jobs.ashbyhq.com/theori)
5. [builtin.com](https://builtin.com/company/theori-inc)

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