John De Melo Fernandes
Software Engineer
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJohn De Melo Fernandes is a senior software engineer based in São Paulo with 11 years of experience designing and delivering cloud-native vehicle after-sales platforms for one of Latin America's largest companies. He combines hands-on backend expertise in Java (8–17), Spring Boot, Python and Node.js with frontend skills across Angular (8–17), and a strong AWS footprint spanning ECS/EKS, Lambda, RDS and OpenSearch. John has led technical teams across billing, contracts, digital sales and dealer modernization, shaping architecture, evangelizing best practices and driving migrations from legacy PHP stacks to microservices. A practitioner of SOLID, TDD, DDD and Clean Architecture, he also explores Rust as a growing interest, reflecting a curiosity for performant systems beyond his daily stack. Notably, his breadth of ownership across the full vehicle after-sales lifecycle gives him a rare end-to-end perspective that informs pragmatic, customer-focused engineering decisions.
11 years of coding experience
8 years of employment as a software developer
Analise e desenvolvimento de sistemas, Tecnologia da Informação, Analise e desenvolvimento de sistemas, Tecnologia da Informação at Fatec IpirangaTécnico em informática para internet, Tecnologia da Informação, Técnico em informática para internet, Tecnologia da Informação at Etec Tiquatira
Spanish, Portuguese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (92)
api-management10
decimals10
reverse-proxy10
consul10
masking10
kong10
serverless10
microservices10
cloud-native10
native-api10
ng10
api10
ai10
input-mask10
directive10
Programming languages (7)
Github contributions (5)
jl91/ecommerce
Apr 2020 - Apr 2020
Ecommerce simulator
Contributions:58 commits, 95 pushes in 6 days
reactecommercejavascriptsimulatortypescript
jl91/PHPTW
Jun 2015 - May 2016
Contributions:31 pushes, 1 branch in 11 months
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