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Felipe Schirmann

PROFILE

Felipe Schirmann

Felipe Schirmann modernized the backend architecture for zanfranceschi/rinha-de-backend-2025, focusing on stability and scalability. He upgraded the deployment to v15.x, tuning resilience to handle high load, and restructured the system into a multi-API backend behind Nginx with Redis caching. Felipe implemented a Redis-backed payments queue using Lua scripting and introduced a scheduler interval for efficient processing. Maintenance included log and artifact cleanup to streamline future releases. Working primarily with Java, Lua, and YAML, he addressed targeted stability issues in version 17.0.3, resulting in improved reliability, reduced latency, and enhanced maintainability for the backend service.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

13Total
Bugs
2
Commits
13
Features
2
Lines of code
5,068
Activity Months1

Your Network

207 people

Work History

August 2025

13 Commits • 2 Features

Aug 1, 2025

August 2025 highlights for zanfranceschi/rinha-de-backend-2025, delivering backend modernization, stability, and scale. Key milestones include deployment and resilience upgrades of the backend service, architecture modernization with Nginx load balancing, Redis caching, and a Redis-backed payments queue with a Lua enqueuing script and a scheduler decision interval, plus cleanup work to improve release hygiene. Targeted stability fixes in 17.0.3 completed; maintenance and log cleanup reduced noise ahead of the next version. Overall, these efforts increased reliability, scalability, and performance under load while improving maintainability and deployment velocity.

Activity

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Quality Metrics

Correctness77.0%
Maintainability80.0%
Architecture78.4%
Performance72.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaLuaTypeScriptYAMLnginxredis

Technical Skills

Backend DevelopmentBug FixingConfigurationContainerizationDevOpsDockerKubernetesLoad BalancingLua ScriptingMicroservicesNginxPerformance TestingRedisSpring Bootload balancing

Repositories Contributed To

1 repo

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

zanfranceschi/rinha-de-backend-2025

Aug 2025 Aug 2025
1 Month active

Languages Used

JavaLuaTypeScriptYAMLnginxredis

Technical Skills

Backend DevelopmentBug FixingConfigurationContainerizationDevOpsDocker