Dmitry Dygalo
Python Developer at Workato
Prague, Prague, Czechia
Summary
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RockstarDmitry Dygalo is a Python developer with 12 years of experience based in Prague, known for building performant systems and low-level tooling in both Python and Rust. He has a strong open-source track record improving core libraries—contributing performance-focused caching and validation fixes to jsonschema, enhancing property- and API-testing tools like Hypothesis and Schemathesis, and hardening widely used projects such as requests and django-money. Dmitry’s niche strengths include fuzzers, interpreters, and optimization (avoiding allocations, compiled regex, efficient loops), reflected by work on high-performance projects like ruff. He pairs backend engineering with test automation expertise, often improving reproducibility and edge-case handling in test suites. Colleagues can expect a pragmatic engineer who combines deep implementation detail with a focus on reliability and measurable performance gains.
12 years of coding experience
Stackoverflow
478reputation
13kreached
13answers
4questions
Github Skills (40)
property-based-testing10
unit-testing10
static-code-analysis10
caching10
schema-validation10
pytest10
python10
json-schema10
django10
ruff10
testing10
http10
monetary10
performance-optimization10
hy10
Programming languages (21)
Github contributions (5)
django-money/django-money
Sep 2013 - Jan 2022
Role in this project:
Backend Developer
Backend DeveloperContributions:19 releases, 45 reviews, 347 commits in 8 years 4 months
Contributions summary:Dmitry contributed to the `django-money/django-money` repository by adding tests to the project, particularly focused on testing money fields within Django models and queries. They added new test cases to test models, filtration, and currency handling. The user also addressed bug fixes related to `F` expression filtration and code improvements.
pythondjango-frameworkdjangofieldsdjango-project
schemathesis/schemathesis
Aug 2019 - Jan 2023
Supercharge your API testing, catch bugs, and ensure compliance
Role in this project:Back-end Developer
Back-end DeveloperContributions:325 releases, 150 reviews, 1416 commits in 3 years 5 months
Contributions summary:Dmitry focused on improving failure reproduction and validation within the Schemathesis API testing framework. The commits indicate significant work on core functionalities, including enhancements to error reporting by providing code samples and proper exception handling. The user also contributed to stateful testing improvements by incorporating OpenAPI links and extending the capabilities of tests with custom checks.
property-based-testingswaggerapitestingspecification
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