Brian Concannon
EchoTrail Solutions
I'm a cybersecurity builder and operator with 15+ years of experience spanning the FBI, CrowdStrike (employee ~70), Expel, and two companies I founded. I've built behavioral detection engines, co-founded one of the industry's most recognized threat hunting teams, shipped AI-powered security products, and designed cloud infrastructure from scratch.
I'm currently open to new opportunities — full-time, part-time, or project-based. I like working with startups and small teams on hard problems where I can have a real impact.
What I Can Help With
Detection Engineering & Threat Hunting
Build high-fidelity detections, tune out noise, and stand up threat hunting programs. I built CrowdStrike's first behavioral detection engine and co-founded what became the Overwatch team. At Expel, I led detection tooling during their fastest growth phase.
Agentic AI & RAG Systems
Design and build AI-powered products that actually work — RAG pipelines, vector search, tool-use patterns, Claude and OpenAI integrations. I built Rocky Raccoon end-to-end: embeddings, retrieval, prompt engineering, and a production chat interface.
AWS Architecture & Cloud Infrastructure
Serverless architectures with Lambda, API Gateway, S3, CloudFront, RDS, VPC networking — all managed with Terraform. I design things that are simple to operate and cheap to run. Every EchoTrail product runs on infrastructure I built myself.
Full-Stack Product Development
React/Next.js frontends, Python APIs, PostgreSQL, REST — from database schema to deploy script. I've shipped multiple production products as a solo developer and I'm comfortable owning the entire stack.
Security Operations & SOC Architecture
SIEM architecture, data pipelines, analyst workflows, and automation. I've built and operated security tooling at scale — processing millions of events per second across millions of endpoints at CrowdStrike.
Startup Technical Leadership
Product strategy, R&D management, team building. I've founded two companies, joined CrowdStrike as employee ~70, and helped scale Expel through Series C and D. I know what it takes to ship fast and build something real.
Background
Founder at EchoTrail Ventures
2025 – PresentRunning a multi-line business: an AI-powered cybersecurity assistant (Rocky Raccoon), a coworking space, and technical consulting. Designed and built everything — cloud infrastructure, APIs, frontends, and the RAG pipeline.
Founder at EchoTrail
2018 – 2025Built and grew a cybersecurity product company. EchoTrail Insights became a widely-used Windows process behavior database for detection engineers and threat hunters at enterprises worldwide.
Manager, Detection Tools Engineering at Expel
2019 – 2020Led the team building detection infrastructure for a 24/7 SOC — transforming raw telemetry from diverse security tools into actionable, high-fidelity detections. Joined during Series C, contributed through Series D.
Senior Manager, Analytics Insight Team at CrowdStrike
2013 – 2016Joined as employee ~70 before the Falcon platform launched. Built CrowdStrike's first behavioral detection engine. Co-founded and led what became the Overwatch threat hunting team. Built streaming analytics processing millions of events per second.
Special Agent at FBI
2005 – 2013Investigated nation-state cyber intrusions. Selected for the FBI Cyber Action Team (CAT) responding to the most complex cyber incidents in the country. Built automated analysis tools for large-scale network forensics.
Senior Software Engineer II at Raytheon
1999 – 2005Led real-time embedded software development in C++ for Navy satellite communications. Designed encryption subsystems for classified SATCOM.
Education & Credentials
BS Electrical Engineering — Purdue University
GIAC Security Essentials (GSEC) · GIAC Certified Intrusion Analyst (GCIA) · GIAC Wireless Networks (GAWN)
Availability
I'm open to:
- Full-time roles (remote or Colorado-based)
- Part-time / fractional engagements
- Project-based consulting
I especially enjoy working with early-stage startups and small teams where I can wear multiple hats and have a real impact on the product. If you're building something interesting, I'd love to hear about it.