David De Boer - Freelance Software Architect & Developer at David de Boer

David De Boer

Freelance Software Architect & Developer at David de Boer

Randstad, Netherlands

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Summary

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David De Boer is a freelance software architect and developer with 15+ years of hands-on experience designing cloud-native, serverless and event-driven systems across public institutions and heritage networks in the Netherlands. An AWS Certified Solutions Architect and Zend Certified PHP Engineer, he blends domain-driven design, CQRS and test-driven practices with pragmatism—shipping production services on Kubernetes and serverless AWS stacks. He’s a prolific open-source back-end contributor (notably to the Erlang Zotonic CMS and several widely used PHP libraries), comfortable in Erlang/Elixir, Kotlin, PHP and TypeScript and across databases from PostgreSQL to Elasticsearch and linked data (RDF). At organizations like the Koninklijke Bibliotheek and Netwerk Digitaal Erfgoed he built foundational linked-data search and dataset-register services, demonstrating a rare mix of cultural-heritage domain knowledge and systems architecture. His background in Classics and philosophy informs a methodical, mentorship-focused approach to software design and team coaching.

14 years of coding experience

10 years of employment as a software developer

BA, Classics, BA, Classics at Leiden University

VWO (gymnasium), VWO (gymnasium) at Minkema College

English, Dutch, Italian

Stackoverflow

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Github Skills (21)

erlang10

sendmail10

back-end-development10

imap10

send-email10

data-export10

gaufrette10

import-data10

e-mail10

data-import10

php10

web-framework10

database-management10

csv10

exports10

Programming languages (23)

JavaBikeshedC++RustCMakefileScalaVue

Github contributions (5)

ddeboer/data-import

Jul 2012 - Jan 2017

Import data from and export data to a range of different file formats and media

Role in this project:

Back-end Developer

Contributions:4 releases, 175 commits, 36 PRs in 4 years 6 months

Contributions summary:David primarily focused on improving the data import and export functionality. They made several code cleanups and refactoring changes. Key contributions include adding the `count()` method to reader interfaces and implementing the `ArrayReader` class for reading array data. They also fixed bugs and added new filters for data transformations, like the `ConvertEncoding` and `CharsetValueConverter` for handling different character encodings.

csvexportdata-exportfile-formatscsv-import

ddeboer/imap

Jul 2012 - Sep 2021

Object-oriented, fully tested PHP IMAP library

Role in this project:

Back-end Developer

Contributions:4 releases, 158 commits, 29 PRs in 9 years 3 months

Contributions summary:David primarily contributed to the PHP IMAP library, focusing on implementing core functionalities and improving the codebase. Their work involved adding features such as attachment handling, subject decoding, and support for different encoding types. They also refactored the code to improve code quality and added tests, including a test for Bcc functionality.

phpemailimap-libraryobject-orientedtested

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