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.
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 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.
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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