// software · embedded · both
Jonathan RareySoftware & Embedded Engineer
11+ years shipping on both sides of the hardware line: real-time cloud systems in Go and Python, embedded firmware in C, and the test systems that prove they work.
Two tracks, one engineer
Hiring for software? Hiring for embedded? Either way, the other half comes with.
Software
- Real-time trading platform in Go that traded real money through Alpaca in 2025: 100k+ messages ingested per second per core, 99%+ uptime while live
- Data ingress to ML inference to a sent, confirmed order in under 100ms, round trip
- API test platform with a custom DSL and built-in LLM tooling across 150+ endpoints
- Lambda, DynamoDB, S3, Route 53, Cognito, EC2, SES and more in production. Certified.
Embedded & Electrical
- Production firmware in C on STM32 with RTOSes, from power converters to fuel systems
- Embedded controls for a self-healing inverter: 8 fault-driven modes, 10x the switches per phase
- Led electrical design on a 3-rack, 9,000+ relay aerospace test system, over 95% off-the-shelf
- Boards from simple breakouts to 8-layer MIL-SPEC designs in Altium
Featured projects
Algorithmic trading platform in Go and Python that traded real money through Alpaca for several months in 2025: 100k+ messages ingested per second per core, ML inference in the loop, 99%+ uptime while live.
- Go
- Python
- PyTorch
- Redis
- Docker
- AWS EC2
- Alpaca API
CompTIA A+ exam-prep web app with scenario quizzes, a PC-builder and command-prompt simulator, and an ElevenLabs-voiced narrator that reacts to your answers.
- React
- TypeScript
- AWS Lambda
- ElevenLabs
- Go
Free desktop PDF editor for Windows, macOS, and Linux: merge, split, rotate, encrypt, and edit text in place. No subscription, no paywall.
- Go
- Wails
- React
- pdf.js
- GitHub Actions
About me
I'm an engineer who never picked a side of the hardware line. The same career includes megawatt power supplies, MIL-SPEC circuit boards, STM32 firmware, a patent-pending simulation platform, and cloud systems processing thousands of market events per second. There is also a third thread: a two-phase SEO and website design practice, from an automated AI website factory to the hand-built client sites of Zipoli Media Co.
These days I'm a Software Development Engineer in Test at Massive, working remote from Charlotte, NC, with the projects above shipping on nights and weekends. More background on the about page, or browse my project work to see how I build.