William Harader
Self Employed
Dunsmuir, California, United States
Summary
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SeniorWilliam Harader is a seasoned freelance software developer with over 30 years of coding experience and a track record of delivering web, firmware, and cloud-connected systems. He brings deep hands-on expertise in TypeScript/JavaScript, Python, C/C++, and Rust, and has a history with PHP, Java, C#, Ruby, and Lua from early web projects. Since 2008 he’s built ecommerce and LMS solutions, repaired and secured compromised CMS sites, and more recently led development at Piera Systems designing Azure-connected air quality sensor platforms and custom APIs. He pairs embedded firmware experience (ESP-IDF, Arduino, FreeRTOS, I2C, UART) with cloud integration skills, enabling end-to-end IoT products from sensor to dashboard. Based in Dunsmuir, CA, he combines freelance agility with startup leadership, often stepping in to secure, modernize, or architect systems that bridge hardware and cloud.
10 years of coding experience
4 years of employment as a software developer
Stackoverflow
344reputation
389kreached
7answers
1question
Github Skills (10)
ips7
date-formatting6
drupal6
css6
javascript6
google-maps-api6
google-maps6
arduino4
python-scripts4
esp323
Programming languages (1)
Github contributions (5)
PieraSystems/7100-I2C-example
Mar 2021 - Oct 2022
Instructions for connecting an IPS-7100 to an ESP32/Arduino over I2C.
Contributions:1 release, 17 commits, 2 PRs in 1 year 8 months
arduinoesp32
PieraSystems/SenseiAQ
Oct 2020 - Oct 2022
SenseiAQ App for connecting with Piera IPS and Canāree sensors
Contributions:11 releases, 37 commits, 29 pushes in 2 years
ipsreesensors
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