Kuba Martin
Director Of R&D Engineering at Spacelift
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolJakub Martin is a Director of R&D Engineering with 11 years of experience designing and operating high-availability, high-throughput distributed systems, primarily using Go and increasingly Rust. He combines hands-on backend development and reliability engineering with pragmatic cloud-native tooling and a bias for shipping simple, correct solutions. At Spacelift he progressed from engineer to director, and previously led cross-company efforts as interim technical lead for the OpenTofu Terraform fork. An active open-source maintainer (notably OctoSQL) he has implemented nontrivial features like multi-column table-valued functions and robust time-parsing utilities. Based in Warsaw, he pairs practical system-building with a taste for theoretical computer science, often exploring new programming paradigms for fun and productivity.
10 years of coding experience
7 years of employment as a software developer
27 Liceum Ogólnokształcące im. Tadeusza CzackiegoMaster's degree Computer Science, Master's degree Computer Science at University of Warsaw
English, German, Polish
Stackoverflow
111reputation
15kreached
0answers
1question
Github Skills (16)
query-engine10
terraformer10
query-parser10
date-parsing10
string-parsing10
go10
backend10
querying10
back-end-development10
parse10
terraform10
testing10
sql9
configuration-management9
build-automation8
Programming languages (13)
Github contributions (5)
cube2222/octosql
Mar 2019 - Oct 2022
OctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 17 reviews, 1406 commits in 3 years 8 months
Contributions summary:Kuba implemented new time parsing functions and integrated those into the OctoSQL query tool. Their contributions included the creation of the `FuncParseTime` function, which allows for parsing strings into `time.Time` values, alongside several unit tests to ensure the correct processing of the time inputs. Furthermore, the user added support for multiple-column and expression-level table valued functions.
csvclisqlitejoindatabase
opentofu/opentofu
Sep 2023 - Mar 2025
OpenTofu lets you declaratively manage your cloud infrastructure.
Role in this project:Backend Developer
Backend DeveloperContributions:449 reviews, 190 PRs, 183 pushes in 1 year 6 months
Contributions summary:Kuba primarily focused on improving the internal workings of the `opentofu` project. Their contributions include fixing issues related to module handling, specifically how child modules are displayed in `terraform show`. They also worked on renaming the root module and modifying the internal directory structure, demonstrating knowledge of the project's build and dependency management. Furthermore, the user implemented a feature to support `~/.opentf.d` for configuration and optimized the code to use `OpenTF` in user-provided strings.
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