I'm Allan Riddel — a Senior Systems & Infrastructure Engineer with 35 years shipping production backend and infrastructure. PQ Crypta, PQ PDF and stlweb.dev are mine end-to-end: the Rust, the servers they run on, the monitoring that catches the 2 a.m. failures, and the front ends people actually use. Fated LLC is the company behind them.
Not slide decks — live platforms, running in production on infrastructure I set up and maintain.
Full-stack cryptographic infrastructure
A post-quantum platform built from scratch — Rust backend, Python ML pipeline, browser front end, all hand-written.
Sovereign PDF intelligence & forensics
A server-side PDF platform with 45+ tools and the most thorough public PDF threat scanner I know of.
Infrastructure-first web platform
Full-stack sites for St. Louis businesses with the performance and security usually reserved for enterprise stacks.
Protocol-level tooling
Hands-on work at the edge of modern transport — the kind of expertise that's a very small talent pool.
Published Rust crates & libraries
Production Rust infrastructure, publicly auditable, on crates.io / PyPI / npm.
I can write the backend, run the servers it lives on, find why it broke, and build the monitoring that warns you next time.
Rust, Python, JavaScript. REST APIs, async services, distributed systems.
Linux & Windows Server, Apache, IIS, F5 BIG-IP, networking, high availability.
TLS, WAF, cryptography, threat detection, JA3/JA4 fingerprinting.
Datadog, custom telemetry, SLOs, anomaly-detection pipelines.
Deployment automation, Jenkins, Buildmaster, reliability engineering.
Tracing failures through every layer until I find the actual problem.
Senior escalation and infrastructure engineering across insurance, finance, and healthcare.
Top-tier escalation point for mission-critical systems across 7 countries. Architected global observability on Datadog, built CI/CD with Jenkins, and kept HA infrastructure running across IIS and F5 BIG-IP.
High-availability web and application infrastructure — IIS, Tomcat, SQL Server, Citrix NetScaler — for mission-critical financial platforms, with HA/DR and disaster-recovery design.
Enterprise application and database infrastructure — WebSphere, SQL Server, SharePoint, ERP — with HA clustering, VMware virtualization, and enterprise backup/recovery.
Two decades of systems, network, and IT leadership: data-center operations, multi-org IPSec VPN architecture, NOC management, and custom back-office development for a 10,000+ subscriber ISP.
Hire me, work with me, or acquire what's been built. Each one starts with the same email.
Senior / staff individual-contributor roles in backend, systems & infrastructure, DevOps, or security. Full-time or contract. Remote preferred.
Bring me in for QUIC / HTTP/3 / WebTransport, post-quantum TLS, or proxy and observability work — or license the engines directly.
The platforms, source, and brands are real assets. For the right buyer, PQ Crypta, PQ PDF, or the QUIC/WebTransport suite are available — together or apart.
One email reaches the engineer directly — no recruiter layer, no funnel.