Dolf Andringa, MSc
“The hard part is understanding the problem.”
dolf@intelliconnect.techcell: +31630959727Medellín, Colombia (US Eastern timezone) but working NL and UK hours
Summary
I am a software engineer with 15+ years experience as technical lead and CTO of startups around the world, of which the past 8 years focused on the renewable energy sector and smart energy management. I like the complexities of the domestic energy markets and finding technical solutions to real world problems and opportunities. My core technical strengths are in systems architecture, IoT, backend development and DevOps in Python and Typescript, but I also have experience in GIS, embedded development, electronics prototyping and frontend development. I speak my mind and collaborate well in teams where I can contribute my experience effectively. I have helped many startups through their initial startup phase, and have taken the technical lead in scaleups on various prototype software and hardware solutions, including one that lead to closing a $19M Series A funding. I assume people’s intentions are good, and as a result have managed to deescalate professional conflicts between partners.
Professional experience
- 2023 - presentSenior Software Engineer at Scene Connect Ltd, UK
- I am technical lead on the software and IoT solutions employed by Scene Connect Ltd and ZUoS Ltd to bring the energy transition to everybody. My main focus lies on:
- our retrofit energy modeling product
- modeling and technical design of our domestic smart energy asset control
- transforming the software development process from publicly funded projects to product focused development
- I am technical lead on the software and IoT solutions employed by Scene Connect Ltd and ZUoS Ltd to bring the energy transition to everybody. My main focus lies on:
- 2023 - presentConsultant/Owner at Intelliconnect LLC, Wyoming, USA
- Consulting with tech startups in the energy sector in designing and building prototype and MVP products.
- Example projects:
- Technical lead of a consortium of 4 startups in a PoC project funded by a Dutch DSO on mitigating grid congestion through local energy communities (with WePositive.energy), which was lauded as the most interesting participating project. I am also assisting the CEO in the second phase project plan and the business plan development.
- Proposal and execution for a feasibility study for a Dutch energy startup in community energy trade and grid congestion mitigation, including community energy modeling and technical architecture and feasibility assessment. The second phase proposal is now pending approval (with WePostive.energy and Icr3ate).
- Energy optimization algorithm and IoT infrastructure development based on Losant for a Thermal Energy Storage startup in the Netherlands through ICr3ate
- MVP Backend and AI pipeline design and development based on Terraform, AWS DynamoDB, Lambda and API Gateway, and FastAPI for SunriseAI, a fintech startup in the US.
- 2022 - 2023Solutions Architect at Therma (now Glacier Grid), Cebu City, Cebu, The Philippines + San Francisco, USA.
- I designed and was the technical lead on the PoC development of the energy management application for commercial refrigeration that resulted in the company closing its $19 series A funding. This included:
- IoT infrastructure based on LoraWAN and RabbitMQ
- NodeJS + Typescript event driven back-end
- machine learning pipeline (based on Kubernetes, RabbitMQ, Python and Typescript)
- prototype hardware integration and testing of the HVACR energy product of Therma, tested at 50 restaurant locations around the Bay Area in california in collaboration with HVACR technicians.
- I contributed heavily on two provisional patent applications, both regarding using the unique properties of refrigeration and HVAC systems to respond to dynamic energy demands and pricing from utility companies. This product was a major factor in Therma closing its $19M Series A funding.
- I designed and was the technical lead on the PoC development of the energy management application for commercial refrigeration that resulted in the company closing its $19 series A funding. This included:
- 2019 - 2022 Lead IoT Engineer at Therma (now GlacierGrid), Cebu City, Cebu, The Philippines.
- I was the technical lead IoT engineer for our Therma LoRaWAN based wireless sensors for commercial refrigeration, including backend architecture, electronics prototyping, embedded development and gateway development.
- 2016 - 2019 Consultant
- Data science and Geospatial analytics project using Python, Jupyter notebooks, Pandas, QGIS, PostgreSQL/PostGIS and Apache Superset for the Philippine Department of Environment and Natural Resources and Marine Wildlife Watch of the Philippines and funded by the German GIZ of a large Marine Turtle monitoring dataset covering 20 years of data.
- Software Engineering and IoT consultant for Foundation University College of Computer Studies. Responsibility including IoT project design, project based education of students, supervision and guidance in the university technology incubator.
- 2016 - 2024 Partner at East Solar Works New technology R&D focused on direct PV solar pumping using VFD’s and restructure the engineering and pre-sales process.
- 2014 - 2016 Science Officer at Marine Conservation Philippines Marine Conservation organisation for which my wife and I setup the science and marine monitoring program with volunteers and thesis students and worked on GIS and data science projects for local conservation.
- 2013 - 2014Lecciones Amazonicas project coordinator at Amazon Fund, Bolivia Environmental education project in the Bolivian Amazon with 4 highschools and guides of an indigenous Amazonian tribe.
- 2010 - 2013Founder/CTO at Proigia Business intelligence software in primary healthcare with a large GIS component. I built the solution and team of 7 of a company which still exists as a subsidiary of a company my partner and i started working together with.
Skills
- Programming languages:
- Python, Embedded C/C++, Typescript, Javascript, PHP, Java
- IoT and Infrastructure:
- Losant, MQTT, RabbitMQ, LoRaWAN, WiFi, LTE, Powerline, PoE, AWS IoT, AWS SQS/Lambda/SNS, GCP Pub/Sub
- Dev-ops tools/services:
- Terraform, Kubernetes, Atlassian/Github, GitOps, FluxCD, TravisCI, Ansible, Jenkins, Vagrant, Nginx, Apache
- AWS and GCP cloud solutions
- Data science:
- R, Python, Jupyter, Pandas, SciPy, SPSS
- Databases:
- PostgreSQL, InfluxDB, TimescaleDB, DynamoDB, Redis, MongoDB, MySQL, SQLite
- Hardware & Embdedded:
- STM32, Atmel, ESP8266, Arduino, FreeRTOS, PlatformIO, Make, OpenWRT, Armbian, Fusion360, PCB Design
- Web development frameworks:
- Django, FastAPI, Flask, NestJS, NodeJS, Express, Angular, Ionic, React
- GIS:
- PostGIS, QGIS, Grass GIS, OpenLayers, Leaflet, GeoExt, Geoserver, GDAL, Geonetwork
- Languages:
- Dutch, English, Spanish, French, German
Education and certifications
- The Things Certified Advanced, The Things Certified Network Management and The Things Certified Security LoRaWAN certifications at The Things Industries, The Netherlands, 2021
- MSc in Biology, Wageningen University, The Netherlands. Major: Coastal Ecology. Minor: Geographic Information Science