Work
Selected projects
Client work is anonymized: no names, products or anything that identifies the customer. More detail can be shared on a call, within each client’s NDA.
Client project (anonymized) · RF monitoring
Multichannel UHF burst-detection receiver
A receive-only SDR that detects narrowband UHF bursts and reports a coarse range band. Taken from a four-tuner prototype to an AD9361 + Zynq design with a 6-layer, impedance-controlled board.
In-house product development · Industrial control
Four-zone mains-switching controller
A manufacturable product built from a written brief. ESP32-S3 control of four 120 VAC heater zones and four pump zones, with a five-layer fail-safe design and a 288-part, 4-layer board ready for turnkey assembly.
Client project (anonymized) · Web · Mobile · Operations
Shop-management platform for an off-road fabrication shop
A web platform and iPhone/iPad app that replaces the hosted storefront of an off-road suspension fabrication and install shop and runs its back office and service bay, from stock and service jobs to the time clock and the books. Built in seven days on my own e-commerce platform.
In-house product · SaaS · Mobile
TymTracker: invoicing SaaS with iOS and Android apps
A time-tracking and invoicing product built to replace a tool whose price rose 20×. A multi-tenant web platform with online card payments, and a companion iOS/Android app for invoices, estimates and clients on the go, with push notifications when invoices are opened, accepted and paid.
In-house product · Mobile · AI
InVinetory: iOS app with AI vision and voice
Point a phone at a wine label and it identifies the bottle, researches it once and files it in a shared household cellar. Describe dinner out loud and a voice assistant picks from bottles you actually own. The six planned phases were built in two days, against an estimate of 9–13 weeks part-time.
In-house product · Web · E-commerce
Custom e-commerce platform
A self-hosted storefront and admin that replaced Shopify for a 3D-printer parts shop, covering checkout, live shipping rates, oversell protection, label printing, refunds and analytics, with four years of order history migrated in.
Client project (anonymized) · Web · Manufacturing
Instant quoting for a laser-cutting shop
A rebuilt website with instant quoting for a laser-cutting and press-brake shop. Customers upload a DXF or STEP file and get a cut, bend and material estimate with a 3D preview, priced from rates the shop controls.
In-house tooling · RF design
Browser RF analysis tools
A signal-chain editor with a live cascade (gain, NF, IP3, P1dB, sensitivity, SFDR) and a Touchstone viewer with Smith chart, markers and cross-grid trace math. Both run entirely in the browser, so no files leave the machine.
Client proposal (anonymized) · Aerospace
Communications payload architecture for a high-altitude platform
RF architectures and link budgets for one receive and two transmit chains, plus the power architecture and a radiation-tolerant part strategy, delivered as a proposal-stage architecture package for an unmanned platform operating at very low Earth orbit altitudes.
Client project (anonymized) · RF systems
UHF transmit link trade study
A link-budget analysis that tested whether an unconventional antenna could close a 50 km UHF transmit link. It sized the transmitter across three signal bandwidths and two fade margins, and recommended the change that would actually close the link.
In-house tooling · Test & measurement
RF power amplifier characterization bench
Browser-based software that drives a signal generator, a signal analyzer and a four-channel supply over SCPI. It measures compression, two-tone linearity and multicarrier EVM/ACPR with safe bias sequencing and traceable reports.
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