Arnaldo Pereira
Self Employed at Estoico
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolArnaldo Pereira is a seasoned technology leader and hands-on engineer with over 20 years in tech and 15+ years in leadership, based in São Paulo. He has led infrastructure, SRE and engineering teams across fintech, e‑commerce and crypto, driving large migrations to cloud-native architectures, Kubernetes and IaC while creating measurable cost and reliability improvements. As a director and head of infrastructure he scaled teams, introduced Golang and SRE practices, and built deployment pipelines and monitoring that became company standards. Today as an independent consultant he focuses on SRE and AI work—speech recognition, text summarization and LLM integration—using stacks like OpenAI, LLaMA, llamaindex, Terraform and Pulumi. An active open-source contributor, he has deep VoIP/telephony roots from FreeSWITCH work, having improved R2 signaling modules for real-world telephony stability. He combines strategic process design with low-level systems experience, making him as comfortable optimizing cloud costs as debugging protocol state machines.
15 years of coding experience
16 years of employment as a software developer
Universidade São Judas Tadeu
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
c1710
c1110
freeswitch10
telephony10
isdn9
computer-engineering9
state-machine9
back-end-development9
cross-platform8
api8
apim8
integrations8
api-design8
multiplatform8
Programming languages (6)
Github contributions (5)
seven1240/FreeSWITCH-OLD
Sep 2010 - May 2011
The World's First Cross-Platform Scalable FREE Multi-Protocol Soft Switch
Role in this project:
Back-end Developer
Back-end DeveloperContributions:128 commits in 7 months
Contributions summary:Arnaldo primarily focused on enhancing the FreeSWITCH project's R2 signaling module, a cross-platform soft switch. Their contributions involved merging versions of ftmod_r2.c, and adding support for receiving and handling events. They also made significant changes to the codebase to address compilation warnings, integrate the state machine and implement functions to handle the R2 protocol, ensuring correct signaling status updates. These changes aimed to improve the module's functionality and stability within the FreeSWITCH ecosystem.
scalablemulti-protocollinuxcommunicationcross-platform
arnaldopereira/kubernetes.github.io
Apr 2016 - Sep 2017
Contributions:9 pushes, 3 branches in 1 year 4 months
documentation-website
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