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ESP32 / STM32 firmware
Production firmware in C and Rust on ESP-IDF, STM32Cube, and Zephyr. BLE / Wi-Fi provisioning, OTA pipelines, power-aware drivers, factory test fixtures. I write the firmware I want to inherit.
Firmware, board bring-up, and instrumentation work — scope-captured, power-profiled, and measured before it leaves the bench. Every engagement starts with a fixed-fee scoping pass so you know what you're paying for before the first commit lands.
Production firmware in C and Rust on ESP-IDF, STM32Cube, and Zephyr. BLE / Wi-Fi provisioning, OTA pipelines, power-aware drivers, factory test fixtures. I write the firmware I want to inherit.
Vehicle and marine bus integration. Custom PGN decoders, fault-tolerant nodes, sniffer rigs, on-water validation. Reference engagement: SailGauge marine instrumentation, currently in NMEA 2000 certification.
Sub-µA sleep-current targets verified on instrumentation that resolves single-digit microamps. Joulescope, PPK2, and INA228 on the bench — every claim measured, every number reproducible.
Independent review before you commit to a fab run. Pull-ups, decoupling, return paths, footprint sanity, BOM risk. Catches the bugs that would have eaten your first prototype week.
Internal training kits, demo rigs, customer-facing eval boards. Small-run hardware with documentation that doesn't lie. Same standard the Circuit Essentials shop kits are built to.
Pre-certification design review, PGN reservation prep, test-house liaison, and post-certification documentation for marine electronics manufacturers. The cert process eats months of calendar time when you do it cold; a guide who knows the current procedures cuts that in half. Currently taking SailGauge through certification — happy to take your product alongside.
Verilog and VHDL for Xilinx and Intel parts. FPGA bring-up, custom IP integration, AXI / Avalon bus glue, simulation-first verification with Cocotb or SystemVerilog. When the MCU runs out of headroom or the timing budget gets serious, the work moves to fabric.
A short paid engagement (typically 4–8 hours) where I read your existing code, schematics, and constraints, and write back a one-page scope with deliverables, risks, and a fixed quote for the full project. No surprises after this.
50% deposit on signing, 25% at the agreed mid-project milestone, 25% on delivery. You know the total before work starts. Out-of-scope changes get a written change order, not a surprise invoice.
For ongoing work where the scope is genuinely unknown — bring-up support, intermittent reviews, on-call firmware. Billed weekly against a capped retainer; you see the hours before they're invoiced.
Code with comments where comments earn their keep, a README your next engineer can read cold, and a short bench-test report so your team can reproduce every claim I made. NDA-friendly throughout.
A few things I'll politely route elsewhere — better to know up front than waste a discovery call:
MS Computer & Electrical Engineering
Johns Hopkins, 2024
BS Computer Engineering
Manhattan College, 2018
Seven years writing firmware in consumer electronics (2018–2024) before going independent. Shipping marine instrumentation under the SailGauge brand since 2025.
Listed in DigiKey's Design Services and Systems Integrator directory as of 2026-05-21. Electronic Design and Manufacturing category.
A few lines about what you're building and where you're stuck is enough to start. I'll reply within one business day with a scoping proposal or a referral if the work isn't a fit.
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