Proof, not adjectives.

ValGuard.ai

A live AI management layer for multi-agent systems: orchestration, deterministic validation, cost control and observability behind an OpenAI-compatible proxy. Rules evaluate the same way every time, so nothing depends on a second model grading the first. Shadow mode measures rule impact against live traffic before enforcement is switched on.

My role

Sole founder and engineer — proxy, rule engine, dashboard, playbooks, SDKs, billing, infrastructure, docs and support.

Scale & performance

Published benchmarks: ≤ 26 µs deterministic validator path on a 12-rule pack with zero allocations; 2.14 ms p50 for a full multi-agent playbook with mocked upstream.

Stack

Go proxy, Next.js dashboard, PostgreSQL, Redis, Docker, Stripe.

Outcome

Shipped as a live commercial product, not a demo, with the benchmark suite published rather than claimed.

JCS Media

• EventStream — eventstream.us Shared enterprise event application for Delta, IHG (Hilton group), Atlantic Union Bank, Global Payments and others — launch dates tied to broadcast schedules that cannot move. Grammy Awards, Super Bowl and Golf Masters on Delta's programme: ticketing, invitations, registration, flights, hotels, table seating, session scheduling and on-site check-in. Charity programmes on the same platform — David Ortiz Celebrity Golf Classic, Lenox House. Global Payments video path at ~20k concurrent viewers.
• SkyTeam Meeting RSVP / e-tool Campaigns, invitations, registration and reporting across SkyTeam alliance member airlines.
• Bioderma Advertising and promotional materials management for the client team.
• Anchorplace Hospitality reservation system — availability and bookings, card payments, cheque handling, document uploads and scans, AI-assisted verification of payment cards and other uploads, two-way Booking.com integration.
• Harrell's POLYGRAPH calculator Web application with release algorithms from client-supplied weather and product data; weekly nitrogen modelling by location, grade and rate for season planning and major event weeks (member-guest, PGA Tour stops).

My role

Lead Systems Engineer — owned backend and AWS infrastructure and production operations across the JCS Media client portfolio.

Stack

PHP, AWS (EC2, RDS, load balancing, caching / ElastiCache, S3, CloudFront), Linux, relational databases.

Outcome

Continuity held through the COVID shutdown of the events industry, with each product re-scoped as client formats moved online.

iHomes / Houses for Sale–Rent Network

The platform behind a multi-brand real-estate referral network: MLS listing ingest at scale, a full lead lifecycle from capture through qualification, routing and agent assignment, and public fronts for sale, rent, luxury and investor audiences served from one data layer.

My role

Backend ownership plus Linux and database administration, technical research and code review for distributed teams.

Scale

Millions of MLS listings ingested; hundreds of thousands of leads moving through qualification and agent assignment.

Stack & integrations

AWS-backed platform, relational data layer, mobile agent API with push notifications, SMS and email delivery, CRM and partner integrations (RealGeeks, Follow Up Boss / Chime-style handoffs, Agentology).

Outcome

One platform and one data layer carrying several public brands and the agent lead pipeline behind them.

Also on this stack

iHomes, Houses for Sale–Rent, iRentalHomes, FBC and Circle Prospecting AI.

Incentco Inc.

US remote database, infrastructure and application work over eight years: Linux and AWS-backed production services, MySQL replication and upgrades, application coding and failure-scenario planning carried out alongside the product team — not a separate ops handoff.

My role

DB and infrastructure engineer with hands-on application coding — replication and HA patterns, database upgrades, zero-downtime migrations and restore drills; solution research and failure-scenario analysis ahead of changes; application support and development next to the product team.

Stack

Linux, AWS, MySQL (replication, HA).

Outcome

Eight years of production database, infrastructure and application continuity on a long-running US remote contract, parallel to other client engagements.

Modular algorithmic trading system

A production-oriented trading pipeline built as independent batches — data integrity, macro and regime signals, risk allocation, execution planning and governance — each runnable and testable on its own. Shadow and backtest paths run beside the live line so a change is compared before it is promoted.

My role

Author of the system.

Stack

Python pipeline with monitoring and safety guards at every stage; earlier v1 existed.

Why it's here

Event-driven, data-heavy work with hard correctness requirements — the counterweight to the platform and infrastructure projects above.

Source4Style Inc.

A B2B marketplace connecting fashion designers to textile suppliers worldwide — mission to make sustainable design possible. Designers search, sample, customize and source materials in one place instead of travelling to textile centres around the world. The first long-running US remote engagement: from Magento integration through building most of the platform from scratch.

My role

Platform delivery from early Magento integration through a largely custom rebuild — catalogue, supplier onboarding, search and sample-request workflows, plus catalogue and supplier data administration.

Scale

Marketplace grew to 1,500+ materials and designer members across dozens of countries while the product iterated (Cartier Women's Initiative Award, North America, 2011).

Stack

PHP, MySQL, Magento (initial integration phase, then custom platform).

Outcome

Established the US remote delivery pattern used for every engagement since — async collaboration, direct client contact, full-stack ownership.