Federal Software Engineer, Attack
Horizon3ai
| Company | Horizon3ai |
| Category | Engineering |
| Location | US |
| Remote | Remote |
| Employment | Not stated |
| Level | Not stated |
| Salary | Not stated by the employer |
| Posted | 28 May 2026 |
| Last verified | 30 Jul 2026 |
| Source | Employer career page (ashby) |
Description
Get to Know Us
Horizon3.ai http://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.
Summary/Overview
The Software Engineer - Attack, will be a software engineer joining our engineering team and reporting to the Director of Federal Engineering. The Software Engineer - Attack will be responsible for attack content development and data model architecture enhancement. The candidate being sought should be a creative, self-motivated, highly energetic, results and detail oriented individual passionate about software development, product development, architectural design. Strong candidates will also have a background or strong interest in offensive cyber security.
Essential Functions
- Collaborate with the Attack, Data, Commercial and Federal engineering team in all phases of the software development lifecycle.
- Work to improve the scalability of the NodeZero platform by empowering the Attack team to build new features and add new offensive attack content into the product.
- Work with other attack engineers and N-Day researchers to understand the technical aspects of reverse engineered exploits and how they act and interact within the product in production.
- Maintain and extend the platform architecture, design, and data model to support new product features.
- Identify, take ownership of and resolve bugs in the product.
- Maintain a high-degree of software quality though code review, testing, and production monitoring.
- Adhere to and improve technical and developmental processes of the Federal Attack Team
Competencies
- Ability to manage concurrent initiatives and use effective judgment in prioritization and time management.
- Excellent analytical/problem solving ability.
- Be self-motivated and highly energetic to have the ability to operate effectively with limited supervision and guidance.
- Strong technical documentation and communication skills.
- Proficient in designing, presenting, and evaluating technical solutions.
- Ability to evaluate and collaboratively improve algorithms, data structures, web development, and API design.
- Experience with relational and graph database systems including Postgres and Neo4j.
- Ability to collaborate with and mentor teammates with varying skill levels and areas of expertise.
- Ability to learn and master new technologies as required.
- Excellence in object oriented programming and test driven development (e.g. Edge case testing).
Required Education/Experience
- Bachelor’s and/or master's degree in business administration, commerce, computer science, engineering or related field or significant relevant industry experience.
- Proficient in Python software development.
- Proficient with Docker, and relational and graph databases.
- Strong grasp and application of software design principles.
- Experience developing and testi
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