Accounts Receivable Analyst

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. The Opportunity We’re looking for an A/R Analyst who thrives in a dynamic environment, loves solving problems, and wants to be part of a mission-driven company at the forefront of cybersecurity. This role is an opportunity to have a meaningful impact on building efficient, scalable accounting processes from the ground up. As an A/R Analyst, you’ll be a key member of our growing accounting team. You’ll take ownership of key AR accounting activities while helping us design and refine the systems, controls, and processes that will support our next phase of growth. You’ll work closely with accounting leadership and cross-functional teams, gaining exposure to all aspects of the business. Key Responsibilities Support customer and partner billing operations, including invoice generation, distribution, payment application, collections support, and accounts receivable aging analysis. Prepare and maintain account reconciliations for Revenue and AR-related accounts and investigate discrepancies as needed Assist with month-end close activities, including journal entries, reconciliations, deferred revenue support, and reporting Partner with internal stakeholders to resolve billing inquiries and improve the customer billing experience Support external audit requests and provide documentation related to revenue, billing, and AR processes Assist in the development, documentation, and enhancement of billing and AR processes and internal controls Participate in process improvement initiatives, system implementations, and other ad hoc finance projects Maintain accurate financial records and ensure compliance with company policies and applicable accounting standards Contribute to a collaborative and team-oriented remote work environment Qualifications 2+ years of AR related accounting experience, billing or general accounting, preferably in SaaS or high-growth tech environments. Bachelor’s degree in Accounting, Finance, or related field (CPA or CPA-track a plus). Strong understanding of US GAAP principles and general ledger accounting entries; experience with accounting software (NetSuite, Sage, QuickBooks, or similar); Excel/Google Sheets proficiency. Accurate, thorough, and organized with a strong sense of accountability. Comfortable working in a fast-paced, evolving environment where priorities shift. Ability to work independently in a remote environment while collaborating effectively across teams Strong communication and interpersonal skills with a customer-service mindset 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. Hybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence. 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. In accordance with various State’s transparency regulations, we provide the following salary range information for this position: Base salary range: $89,100 - $110,000 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.