Christopher Hannemann
President at Abontu LLC
New Jersey, United States
Summary
🤩
Rockstar🎓
Top SchoolChristopher Hannemann is an experienced IT executive and software architect with 25+ years of technical leadership and over a decade in senior management roles, currently serving as President of Abontu LLC in New Jersey. He has a proven track record modernizing operations and enterprise systems across manufacturing and energy firms, driving projects in resource planning, QA, production analytics, and document management. Technically fluent in Java, SOA/REST architectures, enterprise BI, and mobile/web stacks, he pairs hands-on development history with strategic IT governance from roles at RathGibson, PCC Energy Group, and Merck. An early innovator in accessibility and rehabilitation technology, he also contributes to open-source healthcare-adjacent tooling—adding Dexcom sensor data parsing to the OpenAPS ecosystem—highlighting a practical interest in applied medical device data. Trained in electrical and computer engineering with graduate work in CS and mathematics at NJIT, he blends deep systems engineering with business-facing delivery.
11 years of coding experience
36 years of employment as a software developer
BSCoE, Electrical Engineering, Computer Engineering ; Graduate - Computer Science, Mathematics, BSCoE, Electrical Engineering, Computer Engineering ; Graduate - Computer Science, Mathematics at New Jersey Institute of Technology
English
Github Skills (4)
data-parsing10
python10
data-processing10
python-dateutil9
Programming languages (4)
Github contributions (5)
openaps/openaps
Aug 2015 - Oct 2015
deprecated repo, formerly tools for exploring DIY openaps, but no longer used in current modern OpenAPS builds. see https://openaps.readthedocs.io/en/latest/ for current build instructions
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 commits, 2 PRs, 19 comments in 2 months
Contributions summary:Christopher contributed primarily to the `openaps/vendors/dexcom.py` file, adding new features for reading and processing data from Dexcom devices. They implemented several new "uses" like `iter_glucose_hours`, `sensor_insertions`, and `calibrations`, which indicate data retrieval and processing functionalities. These additions expanded the capabilities of the repository by incorporating features related to sensor data and calibration records.
openapsbuildsinstructionsdiyreadthedocs
channemann/push-button-get-candy
Oct 2016 - Feb 2017
Contributions:37 commits, 2 PRs, 33 pushes in 3 months
buttoncandypush
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