Wilfried Goesgens
Application Developer
Cologne, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolWilfried Goesgens is an experienced application developer based in Cologne with 15 years in systems and back-end engineering, currently contributing at ArangoDB. He specializes in reliability and performance work, with a long history of low-level C and systems programming dating back to embedded and CAD tools, telecom SMS systems, and profiling/tuning roles. His open-source contributions to collectd and ArangoDB show a pragmatic focus on bug fixes, plugin robustness, testability, and improving core database execution and logging. Wilfried brings deep familiarity with instrumentation and data-collection internals—fixes range from division-by-zero safeguards to memory-map accounting—helping production systems stay accurate and stable. Comfortable across databases, system daemons, and performance tuning, he blends hands-on debugging with improving test suites and developer ergonomics.
15 years of coding experience
Technische Informatik FH Köln Abteilung GummersbachTechnischer Assistent Elektrotechnik, Technischer Assistent Elektrotechnik at Berufsbildende Schulen Bergisch Gladbach
Stackoverflow
6,047reputation
293kreached
249answers
7questions
Github Skills (38)
c-language10
testing10
test-framework10
c1110
c1710
database-design10
meter10
cprogramming-language10
metric10
back-end-development9
performance-analytics9
performance-monitor9
performance-measurement9
performance-monitoring9
performance-analysis9
Programming languages (20)
Github contributions (5)
arangodb/arangodb
Aug 2014 - Jan 2023
🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:882 reviews, 4578 commits, 1557 PRs in 8 years 7 months
Contributions summary:Wilfried's contributions primarily focused on enhancing the ArangoDB database system's functionality. Their work included modifying core database components like the ExecutionBlock, implementing improvements for error handling, adding capabilities to filter Javascript tests, and upgrading internal libraries like RocksDB. Furthermore, they implemented several enhancements related to the handling of environment variables, logging, and test suite integration, with a clear emphasis on improving testability and overall system stability.
data-modelsdatabase-modelextensionsjavascriptquery-language
collectd/collectd
Mar 2015 - Aug 2020
The system statistics collection daemon. Please send Pull Requests here!
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 PRs, 31 comments, 5 issues in 5 years 6 months
Contributions summary:Wilfried primarily focused on bug fixes and improvements to the collectd system statistics collection daemon. Their commits addressed issues in various plugins, including write_graphite, syslog, statsd, and the zfs_arc plugin, demonstrating a strong understanding of the system's internal workings. They also fixed a division-by-zero error in statsd, and implemented changes related to memory map counting in the processes plugin. These changes suggest a focus on improving the reliability and accuracy of the data collection process.
metrics-servermqtt-serverriemann-clientrrdtoolgraphite-client
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