aMQTT

After three years of inactivity, I became the primary maintainer of the aMQTT open-source project and led a major revitalization effort. I modernized the codebase from EOL versions of python to support for 3.10+, fixed long-standing bugs, and improved performance and reliability. Key contributions include comprehensive documentation, Docker-based containerization, and extensible authentication mechanisms — adding support for signed certificates, HTTP-based auth, LDAP, and database-backed credentials.

mobile solar array

While solar panel prices have dropped to make them cost-effective, installation remains expensive due to bespoke designs tailored to each facility. Large areas of asphalt—like stadium lots or seasonal mall parking—are often underutilized and unsuitable for permanent installations. To address this, I designed and built a solar tracking system, including custom motor drivers, a controller, and RS-485 sensor network. I also developed the full software stack to automatically orient the array toward the sun, boosting solar efficiency by over 50%.

IoT ems

Led development of a hybrid energy management platform for commercial EV fleets. Coordinated cross-functional teams across hardware, firmware, and cloud software to integrate on-site energy sources—including solar, batteries, and generators—to reduce peak demand charges and improve resiliency. The platform leveraged linear solvers and AI-based optimization to manage energy usage both at the site level and across entire fleets, helping customers avoid long-term utility penalties.

microgrids

Key components included an OCPP 2.0-compliant charger interface and AI-driven scheduling software capable of operating autonomously during cloud outages. Edge devices interfaced with battery storage systems, generators, and other off-grid sources—including equipment from ELM, CATL, and Hyliion—to form resilient microgrids. When networked together, these microgrids operated as interconnected “power islands,” dynamically shifting loads and resources to maximize uptime and efficiency.

commercial electric vehicle telemetry

Built a vehicle telemetry platform to optimize EV charging based on real-world usage. Collected real-time data via CANBus and J1939 (JDB), including diagnostics, GPS, and accelerometer streams. Data was transmitted over 4G to the cloud for continuous analysis of performance, wear, and charging needs. Pictured is a rapid prototype developed and assembled for limited production (including firmware) in under two months.

bulk mail photo capture

For those who are remote and traveling, access to their physical mail is a challenge. Instead, you can have your mail forwarded to a service which gathers it, scans the envelopes (and packages) and enables you to view the items online. As their business grows, the company needed a way of increasing the speed of image capture and identification of items for sorting purposes.

letter identification

An embedded system – comprised of a single board computer and a mirrorless camera – was designed & assembled with custom software to handle the processing of 15K items daily. In the first nine months of operation, the system has has captured 2M+ images.

python, gphoto, PIL, opencv

phenotype in-store experience

Phenotype’s goal is to create personalized garments with designs based on analyzing a person’s brain waves during a meditative session. Destined for a retail environment, each installation requires a real-time experience of audio, data processing, media generation and display.

python, touchdesigner, bluetooth device integration

phenotype in-store kiosk

Phenotype’s self-service experience required an interface that would allow a customer to approach a kiosk, register and answer initial questions about their meditation goals. Establishes connection with the Muse™ EEG headset, coordinates the start of the meditation session and displays the TouchDesigner real-time visualizations.

react, capacitorjs, python

phenotype storefront

Allows customer to access their Phenotype experience report and associated product page which renders their Phenotype texture on a 3D model of the purchasable garment. Integrated with shopify’s API for product/variant creation, user authenticationg, order creation and fulfilment.

react, threejs, blender, django, python

device testing fixture

A complete testing fixture for Simtek.io’s second generation IoT product built inside a travel case for easy and safe shipment to their manufacturing facility in China.

It includes a custom built pcb for driving the mechanical functionality as well as a 3-d printed fixture to securely hold the device under test as well as custom ui for ease of use.

python, qt, aws vpc/vpn, fusion 360, c, arduino, atmel

custom raspberry pi hat

To interface with a testing fixture, a custom pcb designed and built to support Simtek.io’s manufacture of their second generation IoT product.

Functionality included current draw measurement ranging from 70 µA to 500 mA, servo motor control for vibration testing, ability to determine quality of light & passive infra-red sensor, cellular modem validation.

bonsai terrarium

Use of two custom-designed, RP2040-based PCBs to monitor a growing environment for bonsai trees. Monitoring of humidity, moisture, CO2, pressure, light intensity and wavelength as well as controls for watering and managing airflow using trinamic 2209 stepper motor custom-designed vent as well as PWM fan control. Custom USB HID-specification driver to communicate with a RaspberryPi host to handle data visualization and ML environment control.

RP2040, circuitpython, grafana, tensorflow, python

typecoach learning course

Leveraging the work of Myers-Briggs and Carl Jung, TypeCoach is a re-imagining coaching on inter-personal communication and leadership. Worked with founders to develop an interactive product based on static course materials.

python, django, celery, bpmn, digitalocean

typecoach interactive

A mixture of planned path state-machine logic and machine learning of individuals on a team, part of the product provides specific guidance on how to interact with others of different communication styles and speak to their strengths.

python, django, celery, sage (ml), digitalocean

outbound multi-channel marketing

Developed a multi-channel, outbound marketing platform to help company with lead generation for the financial services market. Combining text, email and one-on-one phone consultation services in a complex, customer journey that can easily be evolved in a no-code mechanism using BPMN diagrams.

python & java, firehose, uwsgi, docker (fargate)

scriptopia

Integrating technology seemlessly into the artistic process by enabling script to change in real-time as actors, directors and writer collaborate during rehersal without the need for binders and photocopiers.

django, python, websockets, postgres, aws

jobplanr

Self-funded startup to provide job seekers with the tools necessary for their job search. Providing them with the organizational needs as well as best practices to optimize finding next opportunity.

django, python, celery, mysql, aws

macallan & oakley promotion

Social media advertising campaign with facebook and tumblr integration.

motion pictures comics

Custom content management system to enable a self-published cartoonist to reach an audience and enable revenue generation through merchandise and advertising.

php, wordpress, nginx