Senior Backend Software Engineer

Get to Know Us

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, 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 IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.  

We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and 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. 

As a remote first company, we require minimum 25Mbps consumer grade broadband connection.

What You’ll Do

We are looking for a Senior Backend Engineer to join our New Products Team (NPT). The NPT is a dynamic, cross-functional team responsible for developing innovative 0-to-1 products by extending the power of the NodeZero platform. As part of the team, you’ll play a key role in rapidly prototyping and building cutting-edge security products that address real-world cybersecurity challenges.

This role is perfect for someone who thrives in an agile, fast-paced environment and is passionate about creating high-quality backend solutions that impact the cybersecurity landscape.

• Develop New Products: Lead the design and architecture of innovative products from concept to deployment, focusing on long-term scalability while iterating quickly to meet customer needs.

• Backend API Design: Design and implement GraphQL APIs to facilitate seamless data interactions across various components of the product.

• Data Infrastructure: Build and maintain efficient ETL pipelines to process and analyze large datasets, ensuring data integrity and high performance.

• Collaborative Development: Partner with frontend engineers to ensure that data is presented in a user-friendly, accessible manner that enhances the overall product experience.

What You’ll Bring

• Ownership & Initiative: Proven ability to manage multiple projects simultaneously, exercising effective judgment in prioritization and time management.

• Self-driven & Collaborative: A motivated individual who can work autonomously and as part of a team to conceptualize and implement innovative solutions.

• Technical Curiosity: A strong desire to learn new technologies and stay ahead of industry trends in a rapidly evolving cybersecurity landscape.

• Problem-solving & Communication: Excellent analytical skills and the ability to communicate technical concepts clearly to cross-functional teams.

• Mentorship: A passion for guiding and mentoring junior engineers, fostering their growth and professional development.

Required Qualifications:

• Education: Bachelor’s Degree in Computer Science, Computer Engineering, or a related field.

• Experience: 7+ years of professional experience in software engineering, with expertise in modern object-oriented or functional languages (e.g., Python, Go, Scala, C++, TypeScript, etc.).

• Cloud Expertise: Experience building applications on cloud platforms such as AWS, Azure, or GCP, utilizing container technologies like Docker and Kubernetes.

Preferred Qualifications:

• SQL Proficiency: Expert-level knowledge of SQL and experience with both relational (e.g., PostgreSQL) and graph (e.g., Neo4j) databases.

• GraphQL Experience: Hands-on experience building backend systems using GraphQL.

• New Product Development: Experience building new products from the ground up.

• Infrastructure Management: Experience in managing and maintaining production infrastructure.

Travel Required

We are a fully remote company, and this job may require up to 5% of travel to be successful.

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: $163,000 - $208,000 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: This role may also be eligible for an equity package (in the form of stock options). If any other compensation benefits apply, they will be discussed during the interview process.

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.

• Remote Work: We are a 100% remote company. Enjoy the flexibility to work in the way that supports you and brings out your best. 

• Competitive Compensation: We offer competitive salary and benefits which includes health, vision & dental care for you and your family, a flexible vacation policy, and generous parental leave. 

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.