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Charlie van Rantwijk

Full-Stack Blockchain Developer

Location Utrecht Area
Employment Remote / On-Site
Rate
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Full-stack (blockchain) development skills are my strong suit, with experience in several languages including JavaScript/TypeScript, NodeJS, Java, and Python. I also have a lot of strength with server-side DevOps, including software containerisation, container orchestration, and the setup of continuous integration/delivery (CI/CD) pipelines.

In past projects I have worked with multiple blockchain technologies, developing solutions with Ethereum smart contracts, Hyperledger Fabric (1.x/2.x), Hyperledger Indy, the Stellar Lumens network, cryptocurrency futures, and IOTA. Next to blockchain development, I am a lecturer for the Blockchain Development course at the Amsterdam University of Applied Sciences as part of the Blockchain Technology minor.

The largest part of my development knowledge lies within server-side development of both websites and Software as a Service (SaaS). I have worked on backend systems in multiple languages, most involving NodeJS and Python with both MySQL and NoSQL database connections (MariaDB/MongoDB/CouchDB). Along with back-end experience, I have much experience with developing front-end applications (React/React-Native) and the connection aspects between front and back-end, such as encryption.

The largest portion of my DevOps knowledge lies in software containerisation, optimisation, and scalability. I have extensive Docker experience and am well versed in the deployment of containers to cloud platforms including AWS, Google Cloud Platform, and IBM Cloud in combination with Kubernetes.

My passion lies with clustered computing, parallel processing, IoT, and algorithms and I am an advocate of sustainable tech, blockchain, self-sovereign identity, Git, React, and Typescript with a special interest in Docker.