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Angelos Tzotsos

PROFILE

Angelos Tzotsos

Over a twelve-month period, George built and maintained deployment automation and release management pipelines for the EOEPCA/eoepca-plus and EOEPCA/helm-charts-dev repositories. He engineered Helm chart enhancements, Kubernetes deployment optimizations, and CI/CD workflows to streamline feature delivery and environment parity. Using Go, YAML, and shell scripting, George enabled secure API deployments, integrated external PostgreSQL databases, and improved secrets management and authentication alignment. His work addressed configuration complexity, reduced deployment friction, and ensured stable, versioned releases. By focusing on cross-repo coordination and infrastructure as code, George delivered robust, scalable backend systems that supported rapid testing, secure operations, and reliable production upgrades.

Overall Statistics

Feature vs Bugs

94%Features

Repository Contributions

80Total
Bugs
2
Commits
80
Features
33
Lines of code
817
Activity Months12

Work History

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for EOEPCA/helm-charts-dev: Delivered Version 2.0.0 release across Resource Catalogue (stable) and Registration API (significant changes/improvements). This marks a major, user-facing update focused on stability, compatibility, and feature parity for downstream deployments. No explicit major bugs logged for this period in the repo; the emphasis was on upgrade, documentation, and release readiness.

December 2025

12 Commits • 5 Features

Dec 1, 2025

December 2025 performance highlights focusing on release readiness, chart stability, and environment-configurable deployments for Resource Catalogue and Registration API. The team delivered significant Helm chart improvements, resolved deployment naming conflicts across environments, and aligned versioning to support RC4 release readiness.

November 2025

13 Commits • 4 Features

Nov 1, 2025

November 2025: EOEPCA-plus delivered secure PyCSW integration, enhanced secrets management, refined access routing, and a migrated managed PostgreSQL backend for the Resource Catalogue. These changes establish secure, scalable data operations, coherent authentication, and improved reliability across geospatial data processing and catalog access.

October 2025

9 Commits • 5 Features

Oct 1, 2025

October 2025 focused on security hardening, deployment readiness, and enabling future integration with Pub/Sub for Resource Catalogue. Delivered key features across EOEPCA-plus and Helm charts, established IAM integration groundwork, and kept resources up-to-date with latest images. Business impact: improved security posture, faster testing cycles, and more predictable deployments across environments.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025 (EOEPCA/eoepca-plus) focused on ensuring the Registration API runs the latest released version by updating the ArgoCD deployment to Always pull the latest image. This delivery guarantees users access to current API capabilities with minimal manual intervention, aligning deployment with the latest CI/CD outputs.

July 2025

10 Commits • 3 Features

Jul 1, 2025

July 2025 monthly performance summary: Delivered RC-ready upgrades across Resource Catalogue and Registration API, with CORS enablement, security migration via APISIX and Keycloak, and release packaging via Helm charts. Implemented cross-origin access, removed legacy protection, and aligned deployment configurations (2.0.0-rc2) across repositories EOEPCA/eoepca-plus and EOEPCA/helm-charts-dev.

May 2025

4 Commits • 2 Features

May 1, 2025

May 2025: Accelerated development and deployment pipelines for EOEPCA products. Implemented dev/debug deployment support by updating image tags for registration API and resource catalogue core, enabling faster local development and testing; advanced release management with a new resource-catalogue Helm chart development iteration; and stabilized staging by reverting Pycsw image tag to eoepca-staging. These changes improved development feedback loop, prepared integration with external database, and strengthened deployment reliability across Kubernetes/ArgoCD and Helm-based releases.

April 2025

8 Commits • 3 Features

Apr 1, 2025

April 2025 focused on deployment optimization and release management across EOEPCA repos. Key outcomes: (1) Resource Catalogue scaling tuned for dev environments (replicas adjusted 1 -> 2 -> 1) to balance resource usage and availability; (2) Release/version alignment across core services with RC tagging and environment tags (staging/development); (3) Helm charts released to RC1 for Resource Catalogue and Registration API to synchronize RC release tracking and environment readiness. Demonstrated strong cross-repo coordination and visibility into deployment changes.

March 2025

12 Commits • 5 Features

Mar 1, 2025

March 2025 performance highlights across EOEPCA repositories focusing on Resource Catalogue deployment, configurability, and development readiness. Key outcomes include enabling external database support for the Resource Catalogue, enhancements to Helm charts for easier configuration and scaling, stability and branding improvements, and development-oriented API versioning and metadata.

February 2025

3 Commits • 1 Features

Feb 1, 2025

February 2025: Delivered targeted Helm chart enhancements for EOEPCA projects focused on deployment reliability and ingress routing. Implemented critical fixes in the Registration API Helm Chart (ingress and deployment configuration) and added a new configurable subpath option for database storage in the Resource Catalogue chart. Packaging updated with a release version bump to support downstream upgrades. These changes reduce deployment friction, improve routing correctness, and enhance storage configuration flexibility, delivering measurable business value through safer upgrades and smoother deployments.

January 2025

4 Commits • 2 Features

Jan 1, 2025

January 2025: Focused release preparation and deployment automation across two EOEPCA repositories to enable pre-release testing of 2.0.0-beta2. Delivered version bumps, image-tag alignment, and Argo CD-based beta deployments for core services, establishing a reproducible, low-risk path to pre-release environments and accelerating feedback cycles. Achieved cross-repo coordination with clear versioning discipline, improving deployment predictability and business value.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024: EOEPCA/eoepca-plus focused on aligning deployment environments to enable rapid testing and validation of new builds. Implemented Deployment Environment Tag Updates for Resource Catalog and Registration API, switched the Resource Catalog to the development branch for testing, and deployed the latest Registration API for validation. No major defects reported; all work centered on environment parity, release readiness, and cross-repo coordination, accelerating feedback loops and risk mitigation ahead of production.

Activity

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Quality Metrics

Correctness93.8%
Maintainability93.2%
Architecture91.2%
Performance87.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

GoShellYAMLbashyaml

Technical Skills

API DevelopmentAPI Gateway ConfigurationAPI ManagementAPI designArgo CDArgoCDAuthenticationAuthorizationCI/CDCloud SecurityConfiguration ManagementContainerizationDatabase ManagementDevOpsHelm

Repositories Contributed To

2 repos

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

EOEPCA/eoepca-plus

Dec 2024 Dec 2025
10 Months active

Languages Used

YAMLyamlShellbash

Technical Skills

Configuration ManagementDevOpsKubernetesArgo CDCI/CDHelm

EOEPCA/helm-charts-dev

Jan 2025 Feb 2026
9 Months active

Languages Used

YAMLGo

Technical Skills

DevOpsHelmKubernetesRelease ManagementAPI DevelopmentConfiguration Management

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