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Eric Costa

PROFILE

Eric Costa

Over the past ten months, this developer delivered robust backend features and enhancements across the weni-ai/chats-engine and weni-ai/flows repositories. They focused on scalable API development, implementing features such as organization-wide project governance, JWT authentication, and Elasticsearch-backed contact search. Their technical approach emphasized maintainability through code refactoring, comprehensive test coverage, and clear documentation. Using Python, Django, and Django REST Framework, they improved system reliability with transactional workflows, enhanced authorization, and message queue integration. Their work addressed multi-tenant requirements, improved traceability, and strengthened security, resulting in more reliable, auditable, and scalable backend services for complex messaging and project management workflows.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

72Total
Bugs
3
Commits
72
Features
23
Lines of code
6,081
Activity Months10

Work History

June 2026

9 Commits • 1 Features

Jun 1, 2026

June 2026 (2026-06) monthly summary for weni-ai/flows: Delivered a robust overhaul of the contact search by integrating Elasticsearch for scalable, accurate lookups and improved handling of Brazilian numbers with/without the 9th digit. Implemented native pagination, environment-variable-configurable thresholds, and expanded test coverage. Architecture was refined with a dedicated use case for search, and the changes were implemented across 9 commits, delivering measurable improvements in search reliability, performance, and maintainability. Key business impact includes faster, more accurate contact lookups and a more maintainable search pipeline for future enhancements.

May 2026

2 Commits • 1 Features

May 1, 2026

Month: 2026-05. In weni-ai/flows, delivered JWT authentication for InternalFirstContactsView, aligning with the existing MsgStreamView authentication pattern. The implementation validates tokens against settings.JWT_PUBLIC_KEY (no key rotation required), enhancing internal security and consistency across internal endpoints. Release notes updated for version 3.74.0. No other major bugs fixed in this repository this month; the focus was feature delivery and security hardening.

March 2026

6 Commits • 2 Features

Mar 1, 2026

March 2026 highlights for weni-ai/flows: Delivered the first Contacts API Endpoint with pagination and filtering, migrated to a new routing/view layout with correct contact_urn_identity naming, and strengthened tests to exclude failed/errored statuses. Included a changelog update (version 3.64.0) to reflect the internal message retrieval endpoint and timezone support. These changes establish programmatic access to contacts, improve testing reliability, and prepare the codebase for future scalability and integrations.

January 2026

4 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for weni-ai/flows focusing on Project Event workflow enhancements and test coverage. Delivered a new status_updated action in ProjectEventConsumer and implemented update_project_status use case to manage project status changes with validation and logging. Expanded project event tests to cover updates, deletions, and status changes, and refactored tests to align with the Org model. Updated changelog and serializer behavior to reflect the new action and workflows. Improved observability with enhanced logging around status updates and retrievals.

December 2025

3 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for weni-ai/flows focusing on project lifecycle event handling and configuration updates. Delivered a robust project event handling workflow with soft delete support, consolidation of event consumers, and extended configuration updates. Improved logging and traceability; ensured updated Org objects are returned for downstream systems. This work enhances reliability, auditability, and business value for project management features.

April 2025

12 Commits • 1 Features

Apr 1, 2025

April 2025 monthly summary for weni-ai/chats-engine focused on delivering core messaging enhancements, reliability improvements, and maintainability. Implemented end-to-end message traceability for WhatsApp external IDs, improved message routing and dead-letter handling for failed messages, and completed lint and release-note maintenance to support safe, auditable releases. The work enhances external system integration, debugging efficiency, and overall system resilience.

March 2025

4 Commits • 1 Features

Mar 1, 2025

March 2025: Completed Organization-wide Principal Project Designation in weni-ai/chats-engine. Enables one principal project per organization with enforcement and updated project-creation workflow. Implemented tests for its_principal configuration and added targeted refactors. Commit highlights include: feat: Add organization project configuration with principal status check; test: tests for project creation usecase; refactor: Remove config attribute from ProjectCreationDTO; test: Update project creation test cases for its_principal configuration. Business impact: stronger governance for multi-project orgs and reduced configuration errors; Technical impact: improved test coverage, cleaner DTOs, and clearer separation of concerns for future policy enforcement.

February 2025

27 Commits • 11 Features

Feb 1, 2025

February 2025 performance-focused monthly summary for weni-ai/chats-engine: delivered major features, fixed critical bugs, and improved system reliability and governance for multi-tenant environments. Highlights include Group Sector functionality and authorization, RoomMetrics endpoint, Organization Projects API, and code quality improvements, with corresponding tests and changelog updates.

January 2025

4 Commits • 3 Features

Jan 1, 2025

Concise monthly summary for 2025-01 focusing on business value and technical achievements in weni-ai/chats-engine. Delivered a major refactor of room data serialization and prepared comprehensive release documentation for versioned changes, driving easier maintenance and clearer stakeholder communication.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024: Focused API enhancement in chats-engine to expose active room state. Implemented is_active: bool on ListRoomSerializer with default true, enabling active-room filtering and improved client-side management. No major bugs fixed this month. Overall impact: improved API usability, operational visibility, and a safer default behavior; ready for future room-state features. Technologies/skills demonstrated: API design, serializer customization, version-controlled changes with a clear commit, and backward-compatible defaults.

Activity

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Quality Metrics

Correctness91.6%
Maintainability89.2%
Architecture86.6%
Performance83.2%
AI Usage23.6%

Skills & Technologies

Programming Languages

DRFDjangoMarkdownPythonREST FrameworkSQL

Technical Skills

API DevelopmentAPI TestingAPI developmentAPI integrationAPI testingAuthorizationAuthorization ManagementBackend DevelopmentCode CleanupCode FormattingCode OrganizationCode RefactoringDRFDTO DesignData Serialization

Repositories Contributed To

2 repos

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

weni-ai/chats-engine

Dec 2024 Apr 2025
5 Months active

Languages Used

PythonMarkdownDRFDjangoREST FrameworkSQL

Technical Skills

API DevelopmentBackend DevelopmentDjangoData SerializationData Transfer Objects (DTO)Documentation

weni-ai/flows

Dec 2025 Jun 2026
5 Months active

Languages Used

PythonMarkdown

Technical Skills

Djangobackend developmentevent-driven architecturemessage queue handlingdocumentationunit testing