Teemu S
Software Engineer
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolTeemu S is a Helsinki-based software engineer with 14 years of experience building and leading web projects, including heading development at AMT Hakemistot Oy from 2016–2019. He contributes to notable open-source tooling for API interoperability, notably improving OpenAPI 2→3 conversion logic in the widely used kin-openapi Go library, where his refactors and conversion work strengthened maintainability and spec accuracy. Comfortable across backend systems and API design, he combines practical production experience with a habit of improving developer-facing libraries. Currently expanding his skills through studies at Hive Helsinki, he brings a pragmatic, detail-oriented approach to stabilizing and evolving API ecosystems.
14 years of coding experience
4 years of employment as a software developer
Hive Helsinki
Github Skills (9)
swagger10
go10
openapi10
api-design9
golang9
api9
apim9
json8
documentation5
Programming languages (3)
Github contributions (5)
getkin/kin-openapi
Jun 2017 - Oct 2018
OpenAPI 3.0 (and Swagger v2) implementation for Go (parsing, converting, validation, and more)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 36 commits, 6 PRs in 1 year 4 months
Contributions summary:Teemu's contributions primarily involve modifications to the `openapi2conv` package within the `kin-openapi` repository. These changes focus on converting OpenAPI 2.0 specifications to OpenAPI 3.0, demonstrating expertise in API conversion. The commits involve refactoring and implementing conversion logic for different OpenAPI components. The user also made changes related to `jsoninfo` and general refactoring, improving overall maintainability and extending functionality of the project.
golangapivalidationparsingconverting
jban332/flutter2js
Sep 2017 - Oct 2018
Contributions:40 commits, 84 pushes, 1 branch in 1 year
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