Welyab Paula
Senior Software Engineer at Nexos Digital
Maranhão, Brazil
Summary
👤
Senior🎓
Top SchoolWelyab Paula is a Senior Software Engineer with over 15 years of hands-on experience designing and modernizing backend systems across finance, retail, government, and enterprise domains. He specializes in Java and Kotlin on Spring Boot, distributed systems, graph databases, and data-intensive architectures, with a track record of cost- and latency-reducing migrations (e.g., AWS Neptune to Neo4j Aura) and large-scale integration projects for Brazil’s major banking programs. He led technical efforts that cut cloud costs via BigQuery optimization, detected hard-to-see API errors that improved monitoring accuracy, and migrated hundreds of legacy projects from SVN to Git with CI/CD and Sonar quality gates. Comfortable owning end-to-end solutions—from connector APIs and high-performance SQL to platform modernization—he combines pragmatic engineering with a research mindset (Java Certified Professional, programming marathon finalist, and math olympiad medalist). Based in Maranhão, Brazil, he thrives on solving thorny architectural problems that deliver measurable business impact.
11 years of coding experience
15 years of employment as a software developer
Master's degree, Information Technology, Master's degree, Information Technology at Universidade Estadual do Maranhão (UEMA)Bacharelado em Engenharia da Computação, Computer Engineering, Bacharelado em Engenharia da Computação, Computer Engineering at UFMA - Universidade Federal do Maranhão
Portuguese, English
Stackoverflow
270reputation
14kreached
5answers
6questions
Github Skills (15)
fiscal10
java10
open-source8
git8
github8
jakartaee6
classfile6
cdi6
jsf6
groovy6
garbage-collection6
chess-engine6
teste5
spring-boot2
spring2
Programming languages (2)
Github contributions (5)
welyab/ankobachen
Aug 2020 - Jun 2024
Contributions:32 pushes, 4 branches, 2 tags in 3 years 11 months
welyab/covid19-maranhao
Aug 2020 - Sep 2020
Contributions:22 commits, 1 push, 2 branches in 1 month
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