Software Engineer, Partner Integrations

Get to Know Us

Horizon3 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'll Do The Software Engineer on the Partner Integrations team builds and maintains the first-party integrations that connect NodeZero to the security tools our customers already run. When NodeZero completes a pentest, it produces a rich set of findings — your job is to make sure those findings flow automatically into CrowdStrike, SentinelOne, Splunk, ServiceNow, and the rest of the customer's security stack, so they can act on results without context switching. This team owns the full lifecycle of each integration: design, delivery, customer enablement, and ongoing support. You'll ship integrations that are reliable, observable, and well-documented enough that customers can configure them without calling support. This role reports to the IDS Engineering Manager and works alongside a P4 senior engineer. Responsibilities Build and ship first-party integration connectors between NodeZero and customer security platforms (EDR, SIEM, SOAR, ITSM)

Design integration schemas and data mappings that translate NodeZero finding structures into each platform's native format

Maintain and evolve existing integrations as third-party APIs change, customer feedback surfaces gaps, and new platforms are prioritized

Write integration documentation and configuration guides that are good enough for a customer to use without a support call

Diagnose and resolve integration failures reported by customers or caught by monitoring

Work with the Integrations Platform team to ensure connectors are built on shared infrastructure, not one-off scripts

What You'll Bring Integration Engineering 2+ years of professional software engineering experience, with at least one year building production integrations or connectors against third-party APIs

Experience consuming REST or GraphQL APIs and handling the real-world messiness that comes with them: auth token refresh, pagination, rate limiting, partial failure, schema drift

Ability to read and understand third-party API documentation and translate it into a reliable, tested connector

Backend & Platform Proficiency in Python or strong motivation to ramp quickly — Python is the primary language on this team

Comfort working in containerized and cloud-native environments (Docker, Kubernetes, AWS)

Understanding of webhook and event-driven integration patterns

Product Sense You think about the person configuring your integration, not just the system consuming it — clear error messages, sane defaults, useful logs

You read customer bug reports and turn them into concrete root causes, not just workarounds

Nice to Haves Hands-on experience with any of the platforms this team integrates: CrowdStrike Falcon, SentinelOne, Splunk, ServiceNow, Jira, or similar security and ITSM tools

Familiarity with the cybersecurity ecosystem — EDR, SIEM, SOAR concepts and how security teams use them operationally

Experience designing integration data models or field-mapping schemas

Background in customer-facing or product-adjacent engineering roles where reliability directly impacted user experience

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: $148,750 - $190,000 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.

Perks of Horizon3 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.

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, 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.