Software Engineer, Back-End (Pentest Platform)
Horizon3 AI2 months ago
Remote, United StatesSenior
Base Salary
$200k - $235k/yr
Responsibilities
- Design, build, and operate event-driven services for real-time pentest data processing, including event streaming, stream processing, storage, schema evolution, and replayable processing.
- Own ambiguous, high-impact technical problems through system design, implementation, rollout, and long-term operation.
- Translate batch-era finding enrichment, attack-path analysis, host and identity correlation, and reporting logic into streaming-friendly designs.
- Solve distributed systems and data-platform challenges involving large per-pentest datasets, host identity, storage decomposition, and enterprise scale.
- Establish operational excellence through SLOs, instrumentation, alerting, on-call support, and incident response.
- Improve engineering quality through design reviews, technical writing, API contracts, decision records, and collaboration with platform and attack-engineering teams.
Requirements
- At least 4 years of experience in software engineering or a similar role.
- Proficiency in Python and/or Go, including work with large-scale codebases.
- Production experience with PostgreSQL, including schema design, migrations, and query performance at scale.
- Experience building and operating services in AWS or a comparable cloud using Docker and Kubernetes.
- Hands-on production experience with observability tools such as Datadog or OpenTelemetry.
- Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
- Preferred qualifications include event-driven or streaming-platform experience with Kafka, Kinesis, or Flink; distributed-systems design; batch-to-streaming or monolith-to-services migrations; Neo4j and graph data modeling; SQL; cybersecurity, pentesting, or vulnerability-management experience; and encryption patterns such as envelope encryption and KMS.
Benefits
- 100% remote work at a remote-first company; applicants need a minimum 25Mbps consumer-grade broadband connection.
- Base salary range of $199,750–$235,000 annually, excluding additional compensation.
- Equity package in the form of stock options for full-time roles.
- Health, vision, and dental insurance for employees and families.
- Flexible vacation policy and generous parental leave.
- Inclusive, collaborative culture with growth and career-development opportunities.
Tech Stack
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.