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Federico Ruzzier

PROFILE

Federico Ruzzier

Over a 14-month period, this developer delivered robust backend features and stability improvements across multiple PagoPA repositories, including pagopa-afm-calculator and pagopa-fdr. They focused on API design, integration, and testing, implementing enhancements such as structured JSON logging, OpenAPI alignment, and performance test modernization using Java and Spring Framework. Their work included refactoring for maintainability, strengthening deployment pipelines with CI/CD and Helm, and improving data validation and error handling. By addressing both feature delivery and bug fixes, they enabled more reliable releases, streamlined observability, and ensured consistent API behavior, demonstrating depth in backend development, DevOps, and automated testing practices.

Overall Statistics

Feature vs Bugs

69%Features

Repository Contributions

181Total
Bugs
16
Commits
181
Features
36
Lines of code
68,501
Activity Months14

Work History

May 2026

6 Commits • 1 Features

May 1, 2026

Month: 2026-05 | Repository: pagopa/pagopa-afm-calculator Key deliverable: Enhanced API Operation Logging and Traceability. Implemented structured JSON logging for API operations, ensured consistent request IDs across logs, and simplified log content to focus on operation steps. Updated tests and aligned microservice image tag to support improved logging and error handling. Six commits were executed to test and stabilize the new logging aspect. No separate critical bugs were reported this month; effort focused on observability improvements and release readiness. Impact: Significantly improved observability and troubleshooting capabilities for API operations, enabling end-to-end traceability across the service, faster root-cause analysis, and more reliable incident response. The changes support better service reliability and customer-facing performance by reducing mean time to detect and resolve issues, and by improving the quality of diagnostic data available to SRE and development teams. Technologies/Skills demonstrated: structured JSON logging, distributed tracing concepts, request ID propagation, test automation and coverage, CI/CD alignment for image tagging, logging standardization, and bug-fix discipline focused on testing new observability features.

March 2026

1 Commits

Mar 1, 2026

March 2026 monthly summary for pagopa-afm-calculator: Focused on test stability and maintainability; no new user-facing features delivered; major action was temporarily disabling the GetFees performance test to address flaky results, tracked in commit e7565784b6ba013b886d6212a67e32fbb31d82aa to ensure traceability. This change reduced CI noise and preserved release cadence, with groundwork laid for a more robust re-enablement of performance tests.

February 2026

8 Commits • 1 Features

Feb 1, 2026

February 2026 — pagopa/pagopa-afm-calculator Overview: Focused on stabilizing API behavior and elevating test automation reliability to enable faster, safer releases. Delivered a targeted bug rollback to restore API stability and a comprehensive modernization of the test framework and environments to reduce flaky tests and improve feedback cycles. Key features delivered: - Testing framework modernization and test environment improvements: migrated to JUnit 5, performance testing tuning, timeout adjustments, touchpoint ID updates, Testcontainers upgrade, and canary version pinning to improve test stability and CI reliability. Major bugs fixed: - Rolled back API cache valid bundles changes to restore stability and prevent regressions in the API configuration (commit 5ebd2b7b4aa345f5acbd822e37f603b7bbe30687). Impact and accomplishments: - Increased release confidence with more reliable tests and a stabilized API surface, enabling faster iteration and safer deployments. - Reduced flaky tests and environmental instabilities through environment upgrades and version pinning, contributing to smoother CI/CD cycles. Technologies/skills demonstrated: - Java testing ecosystem modernization (JUnit 5), Testcontainers, performance testing tuning, timeout management, and canary/version pinning. - CI/CD discipline, rollback strategies, and environment stabilization techniques.

January 2026

22 Commits • 5 Features

Jan 1, 2026

Month 2026-01 across pagopa/pagopa-fdr and pagopa/pagopa-afm-calculator delivered substantive features, improved reliability, and strengthened deployment safety. Key outcomes include external-management enablement for unpublished flows, a new RFPB payment method group with performance optimizations, OpenAPI refinement for PagoPA Calculator, data integrity hardening with nullable handling and strict PSP ID comparisons, and enhanced deployment strategies with canaries and Helm/config improvements. These work items reduce risk, improve payment processing performance, and streamline external integrations while strengthening API structure and deployment velocity. Technologies demonstrated include refactoring, caching strategies, OpenAPI design, data validation, safe rollout patterns (canary deployments), Helm, and CI/CD discipline.

December 2025

7 Commits • 2 Features

Dec 1, 2025

December 2025: Delivered a robust overhaul of internal operations flow management, hardened security around logging, and stabilized the test suite to improve CI reliability. The focus was on simplifying service usage, reducing duplication, and enhancing validation, while eliminating flaky tests that impacted velocity. These changes reduce risk, improve maintainability, and support faster delivery of internal capabilities.

November 2025

9 Commits • 5 Features

Nov 1, 2025

November 2025 performance summary for two repos: pagopa/pagopa-afm-calculator and pagopa/pagopa-debt-position. Focused on delivering robust features, hardening test infrastructure, clarifying data models, and enabling business-ready capabilities. Key business value delivered includes more reliable performance testing, improved robustness in payment notices handling, clearer API documentation, and ready-to-use data templates and notebooks for ACA webinar preparation.

October 2025

9 Commits • 1 Features

Oct 1, 2025

October 2025: Focused on test reliability and data processing robustness across two repos. Key outcomes include stabilizing date-related tests, cleaning up test imports, and strengthening the event-processing pipeline with a clearer toReportedIUVEventList and more robust date parsing.

September 2025

23 Commits • 4 Features

Sep 1, 2025

September 2025 monthly summary for pagopa/pagopa-gpd-upload: Delivered stability and structural improvements across the API surface, enabling more reliable integrations and easier maintenance. Key work includes stabilizing OpenAPI generation with path/config adjustments to support base controller conventions, introducing v1/v2 API packaging with CRUD APIs and controller renaming, and updating project configuration and dependencies for consistent builds. Also aligned OpenAPI specs with PAGOPA-3285 identifiers, fixed critical issues in authorization header usage, and simplified health endpoints and obsolete authorizations. Overall, these changes improve API reliability for clients, enable versioned API consumption, and reduce ongoing maintenance burden.

August 2025

3 Commits • 1 Features

Aug 1, 2025

Concise monthly summary for 2025-08 focusing on delivered features, bug fixes, impact, and skills demonstrated for the pagopa/pagopa-afm-calculator service.

July 2025

28 Commits • 3 Features

Jul 1, 2025

Monthly Work Summary - July 2025 Context: Developer effort concentrated on pagopa-afm-calculator with ongoing PAGOPA-3184 and PAGOPA-3200 initiatives. Deliveries focused on API compatibility, data model enhancements, test scaffolding, environment updates, rate/time scheduling, and performance/testing readiness. Business value centers on API stability, broader device/payment method support, and scalable testing/ops readiness.

June 2025

12 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for pagopa/pagopa-afm-calculator. This period focused on improving environment reliability, data accuracy, and test coverage to enhance release quality and security. Key features delivered included refactoring the Docker run environment management, CI/CD secrets integration, and test-suite modernization. Major bug fixed improved touchpoint lookup reliability and deterministic results. Overall impact: more robust environments, faster feedback, and lower deployment risk. Technologies demonstrated: Docker, Docker Compose, Helm, Azure Key Vault, cucumber-based test suite, GH Actions, and Java/JUnit.

May 2025

20 Commits • 7 Features

May 1, 2025

May 2025 monthly summary for Pagopa developer team. Focused on improving observability, security, deployment reliability, and automation across two repositories: pagopa-afm-calculator and pagopa-api-config-cache. Delivered features and reliability fixes that reduce prod noise, strengthen identity and access controls, and shorten release cycles, enabling faster business value delivery while improving stability.

April 2025

2 Commits • 1 Features

Apr 1, 2025

2025-04 Monthly summary: Strengthened sender data handling and API consistency in the pagopa/pagopa-fdr-nodo-dei-pagamenti repository. Delivered robustness improvements and an API refactor without changing core behavior, with a focus on reducing failure scenarios and improving maintainability.

March 2025

31 Commits • 3 Features

Mar 1, 2025

March 2025 monthly summary for three repositories, focusing on delivering robust API capabilities, increasing data accuracy, and strengthening testing and OpenAPI governance. Highlights include rate-limiting policy enhancements for Payments APIs, a comprehensive Flow Rendicontazione conversion workflow, and a targeted bug fix that improves data retrieval consistency, underpinned by OpenAPI alignment, async processing improvements, and test coverage.

Activity

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Quality Metrics

Correctness87.0%
Maintainability87.8%
Architecture84.0%
Performance81.8%
AI Usage22.8%

Skills & Technologies

Programming Languages

DockerfileGherkinHCLJSONJavaJavaScriptN/APythonScalaShell

Technical Skills

API DesignAPI DevelopmentAPI DocumentationAPI Gateway ConfigurationAPI IntegrationAPI ManagementAPI SecurityAPI TestingAPI developmentAPI integrationAPI testingActor SystemsAkka ActorsAsynchronous ProgrammingAzure

Repositories Contributed To

7 repos

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

pagopa/pagopa-afm-calculator

Mar 2025 May 2026
10 Months active

Languages Used

JavaDockerfileTerraformYAMLpropertiesGherkinJavaScriptShell

Technical Skills

Backend DevelopmentCosmos DBJavaAzureCI/CDCloud Configuration

pagopa/pagopa-fdr

Mar 2025 Jan 2026
4 Months active

Languages Used

HCLJavaN/ATerraformXML

Technical Skills

API DevelopmentAPI Gateway ConfigurationAPI ManagementBackend DevelopmentGitInfrastructure as Code

pagopa/pagopa-gpd-upload

Sep 2025 Sep 2025
1 Month active

Languages Used

JavaYAMLproperties

Technical Skills

API DesignAPI DevelopmentAPI DocumentationAPI SecurityAPI TestingBackend Development

pagopa/pagopa-fdr-nodo-dei-pagamenti

Mar 2025 Apr 2025
2 Months active

Languages Used

JavaScalaTypesafe ConfigYAML

Technical Skills

API DesignAPI DevelopmentAPI TestingActor SystemsAkka ActorsAsynchronous Programming

pagopa/pagopa-api-config-cache

May 2025 May 2025
1 Month active

Languages Used

HCLTerraformYAMLyaml

Technical Skills

CI/CDCloud ConfigurationConfiguration ManagementDevOpsGitHub ActionsHelm

pagopa/pagopa-debt-position

Nov 2025 Nov 2025
1 Month active

Languages Used

JSONPython

Technical Skills

API developmentAPI integrationJSON handlingJSON manipulationJupyter Notebookdata management

pagopa/pagopa-fdr-2-event-hub

Oct 2025 Oct 2025
1 Month active

Languages Used

Java

Technical Skills

Backend DevelopmentDate FormattingError Handling