Senior Engineering Manager, Horizon3

• Experience managing backend, data, or platform engineering teams, with a track record of shipping through the team
• Solid fundamentals in backend and distributed systems: data modeling, API design, queues/streams, and the tradeoffs between batch and streaming
• Comfort with modern cloud infrastructure (AWS preferred), containers, and observability tooling (Datadog or similar)
• Ability to lead through technical ambiguity — you can facilitate a design discussion, help the team converge, and know when to dig in yourself
• Clear written communication: you can put together a roadmap, a design doc, or a postmortem the rest of the company can read
• A sense of ownership for how the team operates day-to-day, not just what it ships

Desirable

• We're looking for an Engineering Manager to lead the Data Processing Platform team — the group responsible for how NodeZero turns raw pentest telemetry into the findings, reports, and insights our customers act on
• As Horizon3 has grown in both customer count and customer size, pentest execution and data processing times scaled as well
• Your team is taking on one of the most impactful architectural changes in Horizon3's history: reworking pentest data processing from a batch system into a real-time, event-driven microservice architecture
• The goal is to make Horizon3 best-in-class for enterprise pentests at scale — handling hundreds of thousands of hosts and streaming findings as they're discovered
• Customers will go from waiting weeks for insights to getting them in hours, fundamentally transforming how the entire product suite feels to use
• This work combines platform engineering to build the infrastructure foundation with cybersecurity domain understanding to translate years of batch-centric business logic into real-time processing
• Lead and grow a team of backend and platform engineers migrating post-op processing from a batch system to a real-time, event-driven architecture
• Partner with Product, Attack Engineering, and adjacent Platform teams to sequence the rework so customer value ships continuously rather than as one big-bang cutover
• Work with senior engineers on the team to shape the technical direction: event streaming, stream processing, storage, schema evolution, and replayable processing
• Invest in operational excellence — SLOs, observability, on-call, and incident response — as this system becomes central to every pentest Horizon3 runs
• Help translate existing batch-era logic (finding enrichment, attack path analysis, reporting) into streaming-friendly designs without regressing fidelity
• Recruit, mentor, and retain engineers who care about both distributed systems craft and the security domain
• Establish healthy team practices: design reviews, technical writing, clear API contracts with neighboring teams, and durable decision records
• This is a good opportunity for a manager who still enjoys being close to the technical details and wants to grow alongside a team tackling a meaty data platform rebuild
• 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