Backend & APIs
REST services and multi worker architectures that move high volume data between internal systems and partners with a focus on throughput, latency, and uptime above 99.9%.
Afonso Marques · Lisbon, Portugal
phr33d0m
Systems engineer at Cloudflare, building AI Crawl Control on the edge. Background in backend systems, security automation, and data pipelines.
Currently Systems Engineer at Cloudflare on the AI Crawl Control team helping customers monitor and control how AI crawlers interact with their sites at global edge scale.
What I work on
At Cloudflare, focused on crawl control and edge scale systems. Before that, three years at Coalition turning security data into reliable production backends, APIs, and pipelines.
Security data pipelines
Large scale scrapers and ingestion jobs that collect threat telemetry automatically, backed by Kafka, Prefect, PostgreSQL, and Elasticsearch on AWS.
Security tooling & RE
Firmware reverse engineering, vulnerability fingerprinting, and incident response building tools that turn raw signals into actionable security insight.
Selected work
Fortinet firmware fingerprinting
Reverse engineered Fortinet firmware to extract version indicators, then built a fingerprinting tool that maps fleet firmware to CVEs at scale supporting product capabilities tied to $40M+ in annual revenue.
Multi worker ingestion optimisation
Restructured worker pools and queueing for security data pipelines, increasing throughput by ~40% and cutting processing latency.
Full timeline, education, and stack details on the CV page.
Contact
Open to conversations about backend systems, security automation, and interesting engineering problems.
work@phr33d0m.com