Lukáš Doležal
Staff Software Engineer at Zendesk
Krakow, Lesser Poland Voivodeship
Summary
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Rockstar🎓
Top SchoolLukáš Doležal is a Staff Software Engineer with 16 years of experience building full-stack, cloud-native systems that prioritize customer value and rapid, data-driven iteration. He combines deep fundamentals—from OS and networking to complexity analysis—with hands-on expertise in Ruby, Elixir, PostgreSQL, and modern front-end frameworks to deliver API-first, microservice architectures at scale. At Zendesk he builds ephemeral Kubernetes-based testing and dev environments; prior roles include designing high-throughput, HA services used by Facebook and shipping Intercom’s machine-learning-powered Answer Bot and extensible Messenger UI. A pragmatic, technology-agnostic engineer, he favors simplicity, fast shipping of proven solutions, and consensus-driven collaboration that unblocks teams. He also contributes to notable open-source projects such as Datadog’s Ruby tracing client and Kubernetes tooling, reflecting a steady focus on observability and reliable infrastructure.
16 years of coding experience
9 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Charles University in Prague
Czech, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
distributed-tracing10
datadog10
kubernetes10
go10
trace10
tracer10
kubernetes-pods10
apm10
ruby10
backend9
unit-test9
logging9
rspec9
error-handling8
Programming languages (15)
Github contributions (5)
DataDog/dd-trace-rb
Jun 2020 - Jun 2020
Datadog Tracing Ruby Client
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 reviews, 5 commits, 7 PRs in 11 days
Contributions summary:Lukáš primarily contributed to the Datadog Ruby tracing client, focusing on enhancements to the core tracing functionality. Their work involved adding support for the `child_of` option in the `Tracer.trace` method, enabling more control over span relationships. Additionally, the user introduced the `set_tags` method to the `Span` class, improving the efficiency of setting span metadata from a hash. They also incorporated updates from the master branch and performed a fix for rubocop.
apmtracingruby-clientrubydatadog-tracing
jetstack/kube-lego
Oct 2017 - Oct 2017
DEPRECATED: Automatically request certificates for Kubernetes Ingress resources from Let's Encrypt
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits, 1 PR, 2 comments in 1 day
Contributions summary:Lukáš primarily focused on refining the application's backend logic. Their work involved correcting syntax errors, fixing English in log messages, and ensuring the service update/delete process correctly handled annotations. They also implemented changes to the logging functionality and corrected how service updates were being handled. These changes focused on the use of Kubernetes annotations.
letsencryptcertificatesingresskuberneteslet
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