Helton Marques - Senior Backend Engineer at Eureka Labs

Helton Marques

Senior Backend Engineer at Eureka Labs

Santa Catarina, Brazil

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Summary

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Senior

🎓

Top School

Helton Marques is a Senior Backend Engineer with 12 years of experience designing and operating high-throughput, cloud-native services across GCP and AWS. He has taken full ownership of Tier-1 systems at scale—handling over 10 million requests per minute at Ring—and led complex migrations such as PostgreSQL to DynamoDB. Skilled in Go, distributed systems, observability and blockchain indexing, he built sub-second Ethereum indexers at Injective Labs and developer-friendly billing/notification backends supporting 100k+ message CRM campaigns. Helton contributes to open-source (notably enhancements to the popular mailgun-go client) and brings embedded-linux and firmware experience from earlier roles, giving him uncommon depth across hardware-to-cloud stacks. Based in Santa Catarina, Brazil, he’s pragmatic about trade-offs, enjoys diving deep into business domains, and consistently delivers reliable, testable systems.

12 years of coding experience

18 years of employment as a software developer

Electronics Technician, Telecommunications, Electronics Technician, Telecommunications at Instituto Federal do Paraná - IFPR (Curitiba)

Pós Graduação, Post Graduation in Quality and Software Engineering, Pós Graduação, Post Graduation in Quality and Software Engineering at Universidade do Vale do Itajaí

Computer Engineering, Hardware / Software, Computer Engineering, Hardware / Software at Universidade Positivo

English, Portuguese, German

Stackoverflow

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Github Skills (10)

e-mail10

go10

sendmail10

api-design10

send-email10

testing10

githubaction-workflow5

github-ci5

docker4

dockers4

Programming languages (3)

CMakefileGo

Github contributions (5)

mailgun/mailgun-go

Dec 2016 - Apr 2017

Go library for sending mail with the Mailgun API.

Role in this project:

Back-end Developer

Contributions:6 commits, 5 PRs, 5 comments in 4 months

Contributions summary:Helton primarily contributed to the Go library for sending mail with the Mailgun API, focusing on enhancements to the core functionality. Their work included adding the ability to set the API base URL, which provides greater flexibility in configuring the library. Additional contributions include the implementation of offline test cases and the integration of an ensure provider to unit tests, improving the library's testability and reliability. The user also added a feature to specify the domain used for sending messages.

golangapimailsmtpgo-library

heltonmarx/goami

Aug 2013 - Apr 2021

Asterisk Manager Interface (AMI) client in Go

Contributions:15 reviews, 106 commits, 34 PRs in 7 years 8 months

asteriskgolangamigo

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