Horizon3 AI: Webapp Offensive Security Software Engineer

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Company Overview

Horizon3.ai is a prominent and fast-growing cybersecurity company known for its innovative approach to tackling modern security challenges. With a mission to help organizations proactively identify and mitigate exploitable attack vectors, Horizon3.ai has developed its flagship product, the NodeZero™ platform. This platform empowers teams to conduct production-safe autonomous pentests and various key assessment operations across diverse environments, including internal, external, cloud, and hybrid setups. Organizations of all sizes, from small educational institutions to major government agencies and Global 100 enterprises, have adopted NodeZero to secure their systems effectively. The company's team is a unique blend of former U.S. Special Operations cyber operators, engineers from startups, and frustrated cybersecurity practitioners dedicated to improving security practices.

Job Overview

Horizon3.ai is currently seeking a Webapp Offensive Security Software Engineer. This position is ideal for candidates possessing extensive experience in web application penetration testing alongside a keen interest in leveraging AI for enhancing security measures. The role offers the opportunity to significantly influence how value is delivered to customers by designing, developing, and integrating offensive security content directly into the NodeZero platform.

Essential Functions

The responsibilities for this position include:

  • Designing, developing, and integrating web application offensive security content into the NodeZero platform.
  • Creating and implementing novel attack capabilities and AI-enhanced techniques.
  • Researching AI-driven methods for vulnerability detection and workflow automation.
  • Extending and maintaining the platform architecture and data models to support new product features.
  • Collaborating across functions to address customer concerns related to attack content.
  • Documenting technical findings and methodologies for various stakeholders.

Required Skills

Candidates should possess the following key skills and experiences:

  • Extensive experience conducting full-scope web application pentests.
  • Proficiency with proxy tools like Burp and browser developer tools.
  • Strong background in object-oriented programming and test-driven development.
  • Familiarity with relational and graph databases, specifically Postgres and Neo4j.
  • Excellent written and verbal communication skills, especially around technical documentation.
  • Capability to manage multiple priorities and work independently.

Additionally, desirable qualifications include:

  • Experience in large-scale software development projects.
  • Contributions to bug bounty programs and a history of recognized security research.
  • Familiarity with AI tools for security applications.

Salary and Compensation

Horizon3.ai offers a competitive compensation package for this role. The expected annual salary range for the Webapp Offensive Security Software Engineer is $185,000 to $240,000. This amount may vary depending on the candidate’s location and relevant experience. Furthermore, all full-time employees are eligible for an equity package in the form of stock options, promoting a sense of ownership and alignment with the company's success.

Work Environment

This position is fully remote, allowing candidates to work from anywhere in the world. It may require occasional travel, about 15%, for team collaboration and project needs. The job seeks an individual who is self-motivated and energetic, capable of functioning effectively with limited supervision.

Company Culture and Values

At Horizon3.ai, diversity, equity, and inclusion are pivotal to their corporate culture. They believe that a diverse workforce drives innovation and improves their ability to address the complex challenges in cybersecurity. Therefore, they encourage individuals from all backgrounds to apply, assuring applicants that their unique contributions will be valued.

The company emphasizes growth opportunities within a collaborative environment, ensuring that employees can progress in their careers while contributing to important security advancements. Furthermore, staff enjoy various benefits, including health, vision, and dental insurance, alongside a flexible vacation policy.

Conclusion

Horizon3.ai is on the lookout for a talented Webapp Offensive Security Software Engineer ready to take on challenging tasks aimed at revolutionizing cybersecurity practices. Candidates are encouraged to apply if they possess the requisite skills, demonstrate a passion for AI-enhanced security techniques, and wish to be part of a dynamic and inclusive team tackling some of the toughest security issues faced today.



This job offer was originally published on weworkremotely.com

Horizon3 AI

Anywhere in the World

Web content writing

Full-time

May 29, 2026

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