--- title: 'Customer Success Associate at Horizon3 AI' canonical: 'https://feeny.ai/job/customer-success-associate-horizon3-ai-germany-qwmk4swrk0hr' type: 'job' last_seen: '2026-10-17' --- # Customer Success Associate at Horizon3 AI - **Company:** [Horizon3 AI](https://feeny.ai/companies/horizon3-ai) - **Location:** Germany - **Employment:** full-time - **Posted:** 2026-09-30 - **Last confirmed live:** 2026-10-17 - **Apply:** https://jobs.ashbyhq.com/horizon3ai/78db1389-0002-4f81-9a9e-e4efb36f2851 ## Job description Get to Know Us Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs. We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results. What you will do: As a Customer Success Associate in EMEA, you will play a key role in scaling and strengthening our international post-sales experience as part of a growing global Customer Success organization. You will serve as a strategic advisor to a portfolio of mid-market customers, partnering directly with technical and business stakeholders to drive adoption, value realization, retention, and growth. You’ll collaborate cross-functionally with Sales, Product, Engineering, and Support while helping shape and evolve the Customer Success experience across the EMEA region. We are open to candidates based in the following locations: UK, Germany, France, Spain, or The Netherlands ## Responsibilities - Manage a portfolio of EMEA mid-market customers as their primary post-sales technical advisor, developing a deep understanding of the NodeZero platform to guide successful adoption - Cultivate champions with security leaders—from analysts to CISOs—and guide them through the lifecycle of adoption, expansion, and advocacy - Deliver technical onboarding and enablement to drive adoption of NodeZero, including advanced features like Tripwires, Insights, and Rapid Response, ensuring customers realize maximum value - Proactively identify customer needs and potential challenges, suggesting solutions that improve their experience and enhance their cybersecurity posture - Partner closely with IT and Security teams (SOC, red/blue teams, AppSec, etc.) to help interpret pentest results, prioritize remediation, and guide long-term offensive security strategy - Collaborate closely with Sales and Renewals teams to drive retention and growth by identifying expansion opportunities, aligning on account strategy, and ensuring a seamless renewal process - Act as a customer advocate, relaying customer feedback and technical issues to our internal teams to help drive the evolution of our product and services - Conduct regular check-ins and quarterly business reviews to align on strategy, secure executive buy-in, and showcase business outcomes. - Contribute to documentation, training materials, and repeatable playbooks to scale technical success across the region - Maintain detailed records of customer health and touchpoints using internal CS platforms ## What We’re Looking For - 3+ years in Customer Success, Technical Account Management, Client Services, within a SaaS cybersecurity environment - In-depth knowledge of cybersecurity practices and principles - Deep understanding of enterprise security, information technology, cloud, or offensive security is highly preferred - Strong customer acumen—able to align solutions to business priorities and present clearly to both technical and executive stakeholders - Experience managing a book of business with revenue targets (ARR, NRR, GRR) - Startup or high-growth company experience is preferred; you thrive in fast-paced, ambiguous environments - Location: UK, Germany, France, Spain, or The Netherlands - Comfortable with tools like Salesforce, Gainsight, and JIRA; detail-oriented and organized - English fluency required; fluency in French, Spanish, or German preferred ## Perks of Horizon3.ai - Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive. - Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities. - Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking. - Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave. ## Compensation and Values At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations. - Depending on experience, the compensation range for this position is: €70,000 - €85,000 OTE 80/20 split annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills. - Additional compensation: All full-time roles are eligible for an equity package in the form of stock options. You Belong Here Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law. Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth. We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless. Other Duties Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice. Application Note In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information. ## About Horizon3 AI ## Company Overview - **One-liner**: Horizon3.ai provides an autonomous penetration testing platform (NodeZero) that safely hacks production environments to identify and fix exploitable attack paths using AI. - **Entity Type**: Private (Series D – latest funding round in 2026, led by Prosperity7 Ventures) - **Headquarters**: San Francisco, California, United States (447 Battery Street, San Francisco, CA 94111) - **Founded**: 2019 - **Founders**: Snehal Antani (Co-Founder & CEO); founded by a mix of US Special Operations, US National Security, and cybersecurity industry veterans ## Core Business - **Primary industry**: Cybersecurity (autonomous penetration testing, vulnerability management, continuous security validation) - **Target customers**: B2B – large enterprises, Fortune 100, government agencies (NSA, CISA), healthcare providers, financial services, manufacturing, education, public sector - **Mission**: “Turn the map around” – using the attacker’s perspective to help enterprises prioritize defensive efforts. The company aims to shift the advantage from attackers to defenders by fighting AI with AI. ## Products & Services - **[NodeZero®](https://horizon3.ai/)**: Autonomous penetration testing SaaS platform. Safely runs real attack techniques in production environments (no agents, no disruption). Discovers and chains exploitable vulnerabilities, misconfigurations, harvested credentials, and dangerous defaults across external, identity, on-prem, cloud, and Kubernetes attack surfaces. Also includes Active Directory password auditing and phishing impact testing. Continuously validates fixes and repeats autonomously. ## Market Standing - **Valuation**: Not publicly disclosed - **Key Metrics**: - Annual Revenue: **$35.5M** (per LinkedIn) - Total Funding: **$187M** (per LinkedIn) / **$181M** (per CB Insights – conflicting reports; both cited) - **225,000+** production-safe tests completed - **5,000+** customers - **Notable Investors/Partners**: - SignalFire (lead in Seed, Series A, Series B) - Craft Ventures (lead Series C) - Prosperity7 Ventures (lead Series D – 2026) - **Growth Signals**: - Ranked **#1 in Security** on the 2025 Inc. 5000 list - **#3 overall** on the 2025 Deloitte Technology Fast 500 - Fast Company’s **Most Innovative Companies** (2026) – #1 in Security - Named to the **Fortune Cyber 60** (2023 & 2025) - Two-time **Black Unicorn Award** winner - Headcount grew **115.5% YoY** to 341 employees (LinkedIn) - Active job postings up **168.2% YoY**; operates in 14 countries ## Competitive Advantages - **AI-driven autonomous testing** that learns from hundreds of thousands of tests and uses the right AI (ML, GenAI) for each problem – delivers evidence-based results with **zero hallucinations**. - **Production-safe** – zero downtime across all production tests, trusted by the world’s most sensitive high-security environments (NSA, CISA, Fortune 10, major healthcare). - **No agents required** – fully self-service SaaS, safe to run continuously. - **Real attack techniques** – not a scanner; shows actual attacker paths and impact. - **Rapid verification** – instantly confirms fixes and repeats the cycle, enabling a continuous validation loop. ## Strategic Focus - **Continuous validation** – driving a loop of test-fix-verify-repeat autonomously. - **Fighting AI with AI** – building NodeZero to operate at machine speed against AI-powered attacks. - **Global expansion** – already in 14 countries, with active hiring in EMEA, APAC, and the Americas. - **Scaling the team** – 59 active job postings (as of mid-2026), with emphasis on engineering, sales, and customer success roles. ## Why Work Here - **Culture**: Rated **5.0/5.0 on LinkedIn** (76 reviews) with perfect scores for Culture (5.0), Career (4.9), Compensation (4.7), and Work-Life (4.6). Described as a “kick-ass organization hell bent on disrupting an industry” with a team of “motivated learn-it-alls.” - **Work Policy**: Remote-friendly (most roles listed as remote, HQ in San Francisco, CA). Offers flexibility across time zones. - **Notable Perks** (from Built In and LinkedIn): - Comprehensive healthcare (medical, dental, vision, FSA) - Life insurance, disability insurance - 401(k) with company matching - Equity and employee stock purchase plan - Generous parental leave and family medical leave - Performance bonuses - Job training, conferences, and customized development tracks - Promotion policies and career growth support - **Engineering Culture**: Built by US Special Operations and National Security veterans. Emphasis on high autonomy, real-world impact, and cutting-edge AI/security work. “If you want to be part of a kick-ass organization hell bent on disrupting an industry and keeping attackers at bay, let’s talk.” ## Sources 1. [horizon3.ai – Homepage](https://horizon3.ai/) 2. [horizon3.ai – About/Team](https://horizon3.ai/about-us/) 3. [LinkedIn – Horizon3.ai Company Page](https://www.linkedin.com/company/horizon3ai) 4. [Built In – Horizon3.ai Careers & Perks](https://builtin.com/company/horizon3ai) 5. [CB Insights – Horizon3.ai Profile](https://www.cbinsights.com/company/horizon-3-ai) ## Other roles at Horizon3 AI - [Senior Marketing Operations & Analytics Manager](https://feeny.ai/job/senior-marketing-operations-analytics-manager-horizon3-ai-united-states-f08jc3w9ckct) — United States - [Channel Sales Engineer, Singapore](https://feeny.ai/job/channel-sales-engineer-singapore-horizon3-ai-singapore-rj7r03x81qnp) — Singapore - [Federal Senior Product Analytics Engineer](https://feeny.ai/job/federal-senior-product-analytics-engineer-horizon3-ai-united-states-qngaeh9k8gzg) — United States - [Federal Senior Data Engineer](https://feeny.ai/job/federal-senior-data-engineer-horizon3-ai-united-states-91gynnx4jjbd) — United States - [Mid-Market Account Executive, Sydney](https://feeny.ai/job/mid-market-account-executive-sydney-horizon3-ai-australia-yzqrpweeaa29) — Australia - [Senior Sales Engineer, Australia](https://feeny.ai/job/senior-sales-engineer-australia-horizon3-ai-australia-22mcct8dm3vg) — Australia - [Mid-Market Account Executive, Melbourne](https://feeny.ai/job/mid-market-account-executive-melbourne-horizon3-ai-australia-nzd46xn576ba) — Australia - [Enterprise Account Executive, Melbourne](https://feeny.ai/job/enterprise-account-executive-melbourne-horizon3-ai-australia-hftnw9gqr4wr) — Australia - [Sales Development Representative, Sydney](https://feeny.ai/job/sales-development-representative-sydney-horizon3-ai-australia-bm8c1zx6qpmm) — Australia - [Director of IT Engineering](https://feeny.ai/job/director-of-it-engineering-horizon3-ai-united-states-bnf0x70ah2yg) — United States