Senior Software Engineer, Pentest Experience
Horizon3 AI3 hours ago
Remote, United StatesSenior
Base Salary
$200k - $235k/yr
Responsibilities
- Build and ship product capabilities across backend services, APIs, and modern web application stacks.
- Own moderate-to-large projects end-to-end, including scoping, technical design, implementation, rollout, and iteration.
- Develop maintainable, performant user-facing experiences aligned with product requirements and design direction.
- Partner with Product, Design, and adjacent engineering teams on cross-functional initiatives.
- Identify and resolve technical risks, blockers, and mis-scoped work.
- Contribute to architecture and design discussions focused on maintainability, operability, and long-term productivity.
- Write production-quality code, tests, and technical documentation, and provide effective code reviews.
- Support and mentor less experienced engineers through feedback, onboarding, and collaboration.
- Improve engineering quality, team execution, and customer product experiences through ownership and continuous improvement.
Requirements
- Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
- At least 6 years of professional software engineering experience.
- Professional experience building and operating production software across the full application stack.
- Experience building distributed backend services with a modern language such as Python, Go, Rust, Java, or TypeScript.
- Experience building backend services on AWS, GCP, or Azure and familiarity with Docker and containerized applications.
- Experience designing and operating APIs, services, and asynchronous or event-driven systems.
- Experience with SQL-based relational databases, data modeling, and persistence layers for production backend systems.
- Knowledge of observability, reliability, and operational best practices for production services.
- Frontend development experience using modern JavaScript or TypeScript with React, Angular, or similar frameworks.
- Preferred experience with PostgreSQL performance tuning, Neo4j or other graph databases, GraphQL, ETL pipelines, data processing tools, cybersecurity products, scoring or recommendation algorithms, and data-intensive products.
- Preferred experience partnering with product managers to define and sequence MVPs and influencing technical direction beyond a single team or domain.
Benefits
- Fully remote work arrangement with up to 10% travel and in-person project kickoffs plus an annual company meeting.
- Base salary range of $200,000-$235,000, plus equity in the form of stock options.
- Health, vision, and dental insurance for employees and families.
- Flexible vacation policy and generous parental leave.
- Career development opportunities and an inclusive, collaborative work culture.
Tech Stack
AngularApache AirflowAWSAzureDockerGoGoogle Cloud PlatformGraphQLJavaJavaScriptNeo4jPostgreSQLPythonReactRustSQLTypeScript
Categories
About Horizon3 AI
Horizon3 AI builds NodeZero, a proactive security platform that autonomously performs penetration testing and validates attack paths across on‑prem, cloud, and hybrid environments. The company sells its software by subscription to security and IT teams at enterprises and government agencies, helping prioritize and verify fixes. Founded in 2019 and headquartered in San Francisco, it is privately held and serves customers across regulated industries and the public sector.