calcom/cal.com
Nov 2025 – Feb 2026
4 Months active
Languages Used
TypeScriptJSONJavaScriptYAMLMarkdownSQLShell
Technical Skills
TypeScriptbackend developmentfull stack developmentsecurity best practicestestingAPI Development
Volnei Munhoz
PROFILE
Volnei Munhoz
Worked on the calcom/cal.com repository, delivering robust calendar platform features and infrastructure improvements over four months. Focus areas included security hardening for API event handling and OAuth flows, performance optimization of calendar caching and batching, and modularization of the codebase for maintainability. Leveraged TypeScript, Node.js, and React to implement telemetry for observability, comprehensive end-to-end and unit testing, and CI/CD pipeline upgrades. Enhanced authorization controls, introduced lazy-loading for companion app components, and improved database indexing for calendar data. The work emphasized business value by reducing security risks, accelerating release cycles, and ensuring reliable, scalable calendar synchronization and user management across the platform.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
98Total
Bugs
31
Commits
98
Features
41
Lines of code
114,169
Activity Months4
Your Network
154 peopleWork History
February 2026
5 Commits • 4 Features
Feb 1, 2026February 2026: Delivered security hardening for API event handling and OAuth flows, introduced performance optimizations, and re-architected companion app hosting, plus calendar synchronization with robust tests and migrations. Focused on business value: reduced risk of unauthorized linking and CSRF, faster load times, improved maintainability, and scalable calendar data synchronization.
5 Commits • 4 Features
Feb 1, 2026February 2026: Delivered security hardening for API event handling and OAuth flows, introduced performance optimizations, and re-architected companion app hosting, plus calendar synchronization with robust tests and migrations. Focused on business value: reduced risk of unauthorized linking and CSRF, faster load times, improved maintainability, and scalable calendar data synchronization.
February 2026
January 2026
39 Commits • 23 Features
Jan 1, 2026January 2026 (2026-01) delivered a focused set of tooling, reliability, and observability improvements across the calendar platform and build pipeline. The work emphasizes business value through faster, more reliable releases, higher calendar data quality, and improved end-to-end visibility.
January 2026
39 Commits • 23 Features
Jan 1, 2026January 2026 (2026-01) delivered a focused set of tooling, reliability, and observability improvements across the calendar platform and build pipeline. The work emphasizes business value through faster, more reliable releases, higher calendar data quality, and improved end-to-end visibility.
December 2025
48 Commits • 9 Features
Dec 1, 2025December 2025 (cal.com) monthly summary for repository calcom/cal.com focusing on business value, stability, and performance. Highlights include calendar performance optimization, batching improvements for availability data, and robust tooling upgrades that underpin faster delivery and safer deployments.
48 Commits • 9 Features
Dec 1, 2025December 2025 (cal.com) monthly summary for repository calcom/cal.com focusing on business value, stability, and performance. Highlights include calendar performance optimization, batching improvements for availability data, and robust tooling upgrades that underpin faster delivery and safer deployments.
December 2025
November 2025
6 Commits • 5 Features
Nov 1, 2025Month: 2025-11 — Concise monthly summary focusing on the key work delivered across kart1ka/cal.com and calcom/cal.com, highlighting architectural improvements, security hardening, and testing governance that drive business value.
November 2025
6 Commits • 5 Features
Nov 1, 2025Month: 2025-11 — Concise monthly summary focusing on the key work delivered across kart1ka/cal.com and calcom/cal.com, highlighting architectural improvements, security hardening, and testing governance that drive business value.
Activity
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Quality Metrics
Correctness93.6%
Maintainability88.4%
Architecture89.4%
Performance88.2%
AI Usage44.0%
Skills & Technologies
Programming Languages
JSONJavaScriptMarkdownSQLShellTypeScriptYAML
Technical Skills
API DevelopmentAPI developmentAPI integrationBackend DevelopmentBunCI/CDCode Quality ImprovementConfiguration ManagementContinuous IntegrationDependency ManagementDevOpsDockerError HandlingFront End DevelopmentFull Stack Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
kart1ka/cal.com
Nov 2025 – Nov 2025
1 Month active
Languages Used
TypeScript
Technical Skills
API developmentNestJSPrismaPrisma ORMTypeScriptauthorization