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Kacper Sawicki

PROFILE

Kacper Sawicki

Kacper contributed to backend and infrastructure projects, focusing on API evolution, observability, and automation. In spacemeshos/go-spacemesh, he developed new API versions and standardized access patterns using Go and gRPC, improving client compatibility and long-term maintainability. He enhanced transaction and activation data visibility through logging and new RPC endpoints, supporting traceability and reliability. For coder/terraform-provider-coder, Kacper implemented the coder_external_agent resource in Go, enabling reproducible infrastructure automation via Terraform. He also improved cross-IDE integration in coder/coder-jetbrains-toolbox and vscode-coder, adding explicit build reason support and CLI compatibility. His work demonstrated depth in API development, infrastructure as code, and CI/CD.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

9Total
Bugs
0
Commits
9
Features
8
Lines of code
5,820
Activity Months5

Work History

August 2025

1 Commits • 1 Features

Aug 1, 2025

August 2025: Delivered the new coder_external_agent resource in the Terraform provider coder/terraform-provider-coder, enabling customers to define and manage external agents within a workspace by referencing the coder_agent ID. The feature includes a complete resource schema, creation logic, and user-facing documentation. This work enhances automation, standardizes external agent provisioning, and reduces manual configuration across environments. Commit reference: e04ea9c09cae938ca568a14aadc5e65e1ac97026 with message feat(coder-attach): add coder_external_agent resource (#424).

July 2025

2 Commits • 2 Features

Jul 1, 2025

July 2025 performance review: Focused on delivering cross-IDE workspace start build reason support to improve observability and troubleshooting. Implemented explicit build reason signals for JetBrains and VS Code integrations and ensured compatibility with newer Coder CLI versions. No major bugs documented; efforts centered on feature delivery, code-model updates, and telemetry enrichment across two repos.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for spacemeshos/go-spacemesh focusing on API evolution and stabilization. Delivered a structured v2beta1 API surface and migration path from v2alpha1 to GET, standardizing access patterns across services and setting groundwork for future API evolution. The work enhances client compatibility and long-term maintainability, delivering measurable business value by enabling smoother integrations and safer migrations.

December 2024

3 Commits • 2 Features

Dec 1, 2024

December 2024 monthly recap for spacemeshos/go-spacemesh. Focused on delivering features that improve activation data visibility and streamline CI/CD, with improvements to ActivationService and code ownership governance to boost reliability and deployment velocity.

November 2024

2 Commits • 2 Features

Nov 1, 2024

November 2024 monthly summary for spacemeshos/go-spacemesh focusing on transaction observability and API-state enhancements. Delivered two key features: Transaction Submission Logging and Transaction Eviction State Support (INEFFECTUAL) in v2alpha1, with associated tests, improving traceability, correctness, and stability of transaction processing.

Activity

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Quality Metrics

Correctness97.8%
Maintainability97.8%
Architecture97.8%
Performance95.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

GoKotlinTypeScriptYAML

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentCI/CDCLI IntegrationCode Review ManagementDatabase InteractionDevOpsGitHub ActionsGoInfrastructure as CodeLoggingTerraform Provider DevelopmentTestingTransaction Processing

Repositories Contributed To

4 repos

Overview of all repositories you've contributed to across your timeline

spacemeshos/go-spacemesh

Nov 2024 Jan 2025
3 Months active

Languages Used

GoYAML

Technical Skills

API DevelopmentBackend DevelopmentLoggingTransaction ProcessinggRPCCI/CD

coder/coder-jetbrains-toolbox

Jul 2025 Jul 2025
1 Month active

Languages Used

Kotlin

Technical Skills

API IntegrationBackend Development

coder/vscode-coder

Jul 2025 Jul 2025
1 Month active

Languages Used

TypeScript

Technical Skills

API IntegrationCLI IntegrationVS Code Extension Development

coder/terraform-provider-coder

Aug 2025 Aug 2025
1 Month active

Languages Used

Go

Technical Skills

GoInfrastructure as CodeTerraform Provider Development

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