Vlastimil Hajek
Software Developer at Bonitoo
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolVlastimil Hajek is a seasoned software developer based in Prague with over a decade of experience building and leading teams on backend and full-stack systems. He combines low-level systems skills (C/C++, Go, .NET) with UI work (React, XAML) and has a strong track record contributing to high-profile open-source projects in the InfluxData ecosystem—helping improve InfluxDB, Chronograf, Telegraf and the Go client libraries. At Bonitoo he focuses on data collection and realtime analytics, benchmarks competitors, and maintains multi-language clients including Arduino integrations, highlighting a penchant for bridging embedded and cloud telemetry. Previously he led R&D teams at HPE delivering enterprise-grade products and global coordination across offshore teams. Practical, detail-oriented and cross-platform minded, he’s known for porting desktop apps to Windows and hardening client-server interactions in production tools.
10 years of coding experience
17 years of employment as a software developer
Master's degree, Measurement and instrumentation, Master's degree, Measurement and instrumentation at Czech Technical University in Prague
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (41)
monitoring10
c-language10
multiplatform10
testing10
windows10
telegraf10
http10
performance-counters10
cross-platform10
ui-design10
go-testing10
uid10
windows-service10
go10
front-end-development10
Programming languages (14)
Github contributions (5)
influxdata/influxdb-client-go
Apr 2020 - Jan 2023
InfluxDB 2 Go Client
Role in this project:
Back-end Developer
Back-end DeveloperContributions:24 releases, 120 reviews, 388 commits in 2 years 9 months
Contributions summary:Vlastimil appears to have been involved in the development of the InfluxDB client for Go. The commits show initial releases and enhancements including closing the body of responses and HTTP service improvements. Code changes involve adjustments to low-level write operations and improvements to error handling, including better handling of HTTP responses and retry strategies, indicating a focus on building reliable network communications. The work indicates the user's focus on core client functionality and maintenance.
golanggo-clientinfluxdbgolang-clientinfluxdb-client
influxdata/telegraf
Aug 2017 - Feb 2022
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:14 commits, 17 PRs, 182 comments in 4 years 6 months
Contributions summary:Vlastimil primarily contributed to the development and testing of the Windows Services input plugin for Telegraf, implementing its functionality. Their work involved writing Go code, creating and modifying test files to thoroughly test the new plugin. The user also worked on integrating performance counter metrics, addressing issues like wildcard expansion and Unicode support within the win_perf_counters plugin. They improved error reporting and added the ability to use counter time in win perf counters.
agentreportingcollectingagent-servertelegraf
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