Senior Forward Deployed Security Engineer

Prophet Security•Menlo Park, CA

About The Position

About Prophet Security Prophet Security builds an AI-native security operations platform that accelerates detection, investigation, and response. We help teams move faster without being constrained by alert volume or fragmented tools. As an early team, you’ll work alongside veterans from Abnormal Security, Expel, Mandiant, and McAfee, and help shape what we build as we scale customer outcomes. The Impact You'll Have You’ll be embedded with customers end-to-end, owning technical execution from prospect-stage validation and PoV through rollout, long-tail support, and expansion. You’ll ramp quickly, unblock outcomes, and ship integrations, workflows, and fixes in customer environments. You’ll help define how FDSE operates by setting delivery standards, building playbooks and feedback loops that make execution repeatable and scalable. You’ll mentor others and raise the execution bar through strong technical judgment, clear communication, and hands-on leadership. Operating at the boundary between customer reality and core product, you’ll spot patterns and shape what we build next. The craft of the role is scoping: making the call on when to MVP a quick fix, when to invest in a reusable solution, and when to push back.

Requirements

This is a senior IC role (no people management). You’ll lead through execution, technical standards, and operational rigor.
Senior FDSE operator who can set the operating model and deliver hands-on customer outcomes. As part of the founding team, you’ll build playbooks, set delivery standards, and create feedback loops. You’ll help onboard and uplevel new FDSEs through pairing, reviews, and shared playbooks.
Track record shipping high-quality products and features at scale and driving measurable customer outcomes (years flexible; 5+ preferred).
Strong Python or Go, with the ability to scope, build, debug, and ship quickly in production customer environments.
Strong customer presence and cross-functional leadership across Customer Success, GTM, Product, and Engineering, with sound tradeoff judgment under pressure.
End-to-end systems fluency across ingestion, parsing, APIs, integrations, permissions, and workflow automation.

Nice To Haves

Founder or early-stage (first 10 engineers) experience; thrives in ambiguity and ships fast.
Experience in security operations, detection engineering, or incident response.
Familiarity with LLMs, prompt engineering, or agentic workflows.
Experience with SIEM/SOAR tools, telemetry pipelines, or alert classification systems.
Background building or maintaining API integrations or security connectors.

Responsibilities

Own end-to-end technical delivery for prospective and existing customers, from requirements through shipped outcomes across rollout, adoption, long-tail support, and expansion.
Partner with Customer Success, GTM, and Engineering to remove blockers fast, align on scope and tradeoffs, and keep execution moving.
Connect and validate customer security telemetry end-to-end, from ingestion and parsing through downstream workflows and outcomes.
Build rapid prototypes, integrations, and workflows for customer-specific needs, then harden the best solutions into reusable deliverables.
Ship code and configuration changes across APIs, permissions, integrations, and notification workflows to improve reliability and time-to-value.
Debug and reproduce issues, fix inconsistencies in data and integration behavior, and drive feedback to Product and Engineering with root cause, fix recommendations, and success criteria.