200K–235K USD / year
Senior Software Engineer, Pentest Experience
FullstackRemote — United States
Published on 2026-11-04
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About this role
Build product features that help customers understand, prioritize, and act on security risks. The role is approximately 80% backend and 20% frontend, with ownership of projects from technical design through release and iteration.
About the company
Horizon3.ai is a technology company specializing in cybersecurity solutions, focusing on automated penetration testing and threat detection for enterprises. They provide a range of services aimed at enhancing security posture and risk management for organizations across various sectors.
The team
Pentest Experience team
Stack
PythonGoRustJavaTypeScriptAWSGCPAzure
What you'll do
- Build and ship backend services, APIs, and web application features.
- Own projects end-to-end, including scoping, design, implementation, rollout, and iteration.
- Collaborate with Product, Design, and adjacent engineering teams.
- Identify technical risks and communicate tradeoffs and delivery concerns.
- Contribute to architecture, code quality, testing, documentation, and code reviews.
- Mentor less experienced engineers and improve team execution.
What we're looking for
- 6+ years of professional software engineering experience.
- Experience building and operating production software across backend and frontend development.
- Experience with distributed backend services, cloud platforms, Docker, APIs, and asynchronous or event-driven systems.
- Production experience with relational SQL databases, data modeling, and persistence layers.
- Knowledge of observability, reliability, and operational best practices.
- Frontend experience with modern JavaScript or TypeScript frameworks such as React or Angular.
- Ability to independently drive substantial work and communicate technical decisions clearly.
- Bachelor’s degree in a related field or equivalent practical experience.
Nice to have
- PostgreSQL performance tuning for large datasets.
- Experience with graph databases such as Neo4j.
- GraphQL, ETL pipelines, or data processing tools.
- Cybersecurity product experience in vulnerability or exposure management, or security telemetry.
- Experience with scoring or recommendation algorithms and data-intensive products.
- Experience defining and sequencing MVPs with product managers.
Benefits
- Stock options
- Health, vision, and dental insurance for employees and families
- Flexible vacation policy
- Generous parental leave