Lucas Merencia
Senior Software Engineer at Deel
Santa Maria, Rio Grande do Sul, Brazil
Summary
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Rockstar🎓
Top SchoolLucas Merencia is a Senior Software Engineer with 14 years of experience building scalable backend systems and platform services across startups and enterprise teams in Brazil. He has led platform and payments initiatives, founded and managed platform squads, and driven architecture for high-availability services using Node.js, Elixir, Java/Spring, and cloud-native tooling. At HG Insights and Intricately he worked on cross-product integrations and high-volume data exports, optimizing SQL and memory usage for large datasets; he now brings that expertise to Deel. A longtime contributor to open-source (notably implementing core scheduling and comprehensive tests for the widely used node-cron project), he blends hands-on engineering with reliability and observability practices. Lucas pairs mentoring and technical leadership with practical SRE experience, having built observability stacks and CI/CD developer tools that improved team productivity and system resilience. Based in Santa Maria, he favors pragmatic, performance-conscious solutions that scale across acquisitions and evolving product landscapes.
14 years of coding experience
14 years of employment as a software developer
Pós Graduação Engenharia de Software, Pós Graduação Engenharia de Software at Católica de Santa Catarina - Centro UniversitárioTecnólogo Análise e Desenvolvimento de sistemas, Tecnólogo Análise e Desenvolvimento de sistemas at Federal University of Technology - Parana
Portuguese, English
Stackoverflow
762reputation
56kreached
4answers
11questions
Github Skills (15)
testing10
unit-testing10
cron10
scheduled-tasks10
nodejs10
javascript10
html6
richfaces6
menu-item6
hyperlink6
jsf6
tree6
targets6
sequelizejs6
java6
Programming languages (11)
Github contributions (5)
node-cron/node-cron
Feb 2016 - Aug 2022
A simple cron-like job scheduler for Node.js
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:2 releases, 297 commits, 116 PRs in 6 years 7 months
Contributions summary:Lucas contributed significantly to the core functionality and testing of the node-cron library. They implemented the initial scheduling mechanism in `cron.js` and created comprehensive tests for scheduling tasks, including testing in minutes, months, days, and hours. Furthermore, the user incorporated features like support for multiple values and ranges in cron expressions, alongside tests validating the correctness of these features. They also added test cases to handle exceptions in tasks.
cron-syntaxnode-cronnode-jsschedulerscheduled-tasks
node-cron/tz-offset
Sep 2018 - Apr 2019
A lib to work with JavaScript timezone offset
Contributions:18 commits, 7 PRs, 10 pushes in 7 months
javascriptoffsettimezone
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