Software Engineer, Back-End (Pentest Platform)

Horizon3.ai
United States
Workplace: RemoteFull timeUSD 199,750 - 235,000 annuallyFunction: Software EngineeringExperience: 4+ yearsEducation: bachelorsSkills: ["Ownership","Collaboration","Operational excellence","Technical writing","Problem-solving"]

Build and operate real-time, event-driven microservices that transform pentest telemetry into actionable findings, attack paths, reports, and insights. Help rework batch processing into streaming architectures at enterprise scale, addressing distributed systems and data correlation challenges. Own end-to-end design, implementation, rollout, and long-term operations, including SLOs, instrumentation, alerting, on-call, and incident response, while collaborating across platform and attack-engineering teams.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
Horizon3.ai
Horizon3.ai
5 days ago

Software Engineer, Back-End (Pentest Platform)

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 2 hours agoStatus: Live

Job Summary

Build and operate real-time, event-driven microservices that transform pentest telemetry into actionable findings, attack paths, reports, and insights. Help rework batch processing into streaming architectures at enterprise scale, addressing distributed systems and data correlation challenges. Own end-to-end design, implementation, rollout, and long-term operations, including SLOs, instrumentation, alerting, on-call, and incident response, while collaborating across platform and attack-engineering teams.
Location: United States
Workplace: Remote
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design, build, and operate event-driven services that process pentest data in real time (event streaming, stream processing, storage, schema evolution, replayable processing).
  • •Own ambiguous, high-impact problems end to end—from design through implementation, rollout, and long-term operation.
  • •Translate existing batch-era logic (enrichment, attack path analysis, host/identity correlation, reporting) into streaming-friendly designs without regressions.
  • •Solve distributed systems challenges at scale, including decomposing monolithic data-storage into services for a rapidly growing engineering org.
  • •Set and uphold operational excellence with SLOs, instrumentation, alerting, on-call, and incident response as the system becomes central to pentests.

Pay and Benefits

Salary: USD 199,750 - 235,000 annually
Equity and Bonus:Equity
Perks:Remote WorkHealth InsuranceVisionDentalParental LeaveEquity

Key Requirements

  • •Minimum of 4+ years of software engineering experience or a similar role.
  • •Proficiency in Python and/or Go with experience in large-scale codebases.
  • •Production experience with relational databases, including PostgreSQL (schema design, migrations, query performance at scale).
  • •Experience building and operating services in AWS (or comparable cloud) with Docker and Kubernetes.
  • •Hands-on production experience with observability tooling such as Datadog or OpenTelemetry.
Experience:4+ yearsCybersecurityPentestingVulnerability managementCloud platformsEvent-driven architectures
Education:Bachelor's in Computer Science, Computer Engineering, or related field
Skills:OwnershipCollaborationOperational excellenceTechnical writingProblem-solving
Tech Stack:PythonGoPostgreSQLAWSDockerKubernetesDatadogOpenTelemetryKafkaKinesisFlinkNeo4jSQLMicroservicesEvent streamingSchema evolutionKMS

Company Brief

Horizon3.ai
Builds NodeZero®, an autonomous penetration-testing platform that continuously finds, prioritizes, and verifies exploitable vulnerabilities across on-premises, cloud, and hybrid environments to help organizations reduce security risk.
Industry: Cybersecurity
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Funding: Series D
Headquarters: San Francisco, United States
Founded: 2019
Glassdoor
Glassdoor: 4.9
WebsiteLinkedInGlassdoor