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Tomás Crespo García

PROFILE

Tomás Crespo García

Over six months, contributed to Nextflow and SeqeraLabs repositories by building unified token-based authentication for repository providers, enhancing security and automation for Bitbucket, Gitea, and GitLab integrations. Leveraged Java, Groovy, and YAML to implement API token support, update authentication flows, and extend CLI capabilities for custom role management. Addressed evolving security requirements by updating documentation and migrating deprecated properties, ensuring compliance and reducing configuration drift. Fixed session management bugs and improved Redis access compatibility, validating changes through tests and collaborative code reviews. The work demonstrated depth in backend development, API integration, configuration management, and adherence to security best practices.

Overall Statistics

Feature vs Bugs

57%Features

Repository Contributions

8Total
Bugs
3
Commits
8
Features
4
Lines of code
497
Activity Months6

Work History

June 2026

1 Commits

Jun 1, 2026

Month: 2026-06 — SeqeraLabs/docs: Redis Property Migration to TOWER_REDIS completed to modernize Redis access and maintain compatibility across Seqera Redis instances. This work focused on replacing deprecated SSM redisson properties with the new TOWER_REDIS properties, aligning configuration with current standards and reducing runtime configuration drift. Commit 0f162d05731d60033e4d4f76ca95e20b6b99ad14 implemented the change (co-authored-by: Justine Geffen).

March 2026

1 Commits

Mar 1, 2026

March 2026 — SeqeraLabs/docs: Strengthened security and reliability by correcting the refresh token expiration handling in the session lifecycle. Delivered a targeted patch and validated changes through code review and collaboration with Justine Geffen, improving token security and compliance with minimal user impact.

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for repo seqeralabs/tower-cli. Focused on expanding role-based access flexibility and stabilizing GLS Compute Environments visibility to improve enterprise operability and reliability. Key outcomes include updated participant role management and restored GLS CEs viewing, backed by tests and clear commit traces.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025: Focused on ensuring developers can continue accessing Bitbucket repositories via API tokens by updating the Bitbucket API Token Authentication Documentation and aligning guidance with Bitbucket's deprecation of app passwords.

August 2025

1 Commits • 1 Features

Aug 1, 2025

August 2025 performance summary for nextflow-io/nextflow. Delivered Bitbucket API Token Authentication feature enabling API token-based authentication as an alternative to access tokens, with updates to BitbucketRepositoryProvider to handle tokens in authentication flows and clone URL construction. Updated accompanying docs to reflect the new authentication option, enhancing security and flexibility for Bitbucket-based workflows and easing automation.

July 2025

2 Commits • 1 Features

Jul 1, 2025

Implemented unified token-based authentication across repository providers in the Nextflow SCM module. Specifically added Bitbucket API token support and extended token-based auth to Bitbucket, Gitea, and GitLab providers, including credential checks and associated tests to boost security and access flexibility. This work enhances automation capabilities while reducing friction for accessing private repositories.

Activity

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Quality Metrics

Correctness92.6%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage25.0%

Skills & Technologies

Programming Languages

GroovyJSONJavaMarkdownYAML

Technical Skills

API DevelopmentAPI IntegrationAWSAuthenticationBackend DevelopmentCommand Line Interface DevelopmentDevOpsDocumentationJavaReflectionUnit Testingcloud servicesconfiguration managementdocumentationsecurity best practices

Repositories Contributed To

3 repos

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

nextflow-io/nextflow

Jul 2025 Aug 2025
2 Months active

Languages Used

GroovyJava

Technical Skills

API IntegrationAuthenticationBackend DevelopmentDevOps

seqeralabs/docs

Sep 2025 Jun 2026
3 Months active

Languages Used

MarkdownYAML

Technical Skills

Documentationdocumentationsecurity best practicesAWScloud servicesconfiguration management

seqeralabs/tower-cli

Feb 2026 Feb 2026
1 Month active

Languages Used

JSONJava

Technical Skills

API DevelopmentAPI IntegrationCommand Line Interface DevelopmentJavaReflectionUnit Testing