Geziel Elyon logo
Curriculum
Geziel Elyon logo

Software Engineer

Experienced Software Engineer with a background in planning, developing, scaling, architecting, securing, and maintaining large-scale web applications, microservices, and APIs in critical environments, serving millions of users daily, for the financial, banking, education and security sectors.

Companies

Companies that trusted and trust my work.

Mais Retorno logoPagar.me logoStone logoZero Tributo logo

Technologies

Technologies that I have proficiency in, have worked with and/or work with.

Javascript logoJavascript
Typescript logoTypescript
NodeJS logoNodeJS
NestJS logoNestJS
Adonis logoAdonis
Apollo GraphQL logoApollo GraphQL
HTML logoHTML
CSS logoCSS
React logoReact
Next logoNext
Vite logoVite
Gatsby logoGatsby
Tailwind logoTailwind
Radix UI logoRadix UI
Shadcn UI logoShadcn UI
Jest logoJest
Cypress logoCypress
K6 logoK6
NPM logoNPM
Yarn logoYarn
Pnpm logoPnpm
Docker logoDocker
Kubernetes logoKubernetes
AWS logoAWS
Terraform logoTerraform
Golang logoGolang
Elastic logoElastic
Elasticsearch logoElasticsearch
Logstash logoLogstash
Kibana logoKibana
Kafka logoKafka
RabbitMQ logoRabbitMQ
Redis logoRedis
Postgres logoPostgres
GraphQL logoGraphQL
MongoDB logoMongoDB
Firebase logoFirebase
Prisma logoPrisma
Git logoGit
Github logoGithub
Gitlab logoGitlab
Github Actions logoGithub Actions
Linux logoLinux
Vercel logoVercel
Datadog logoDatadog
Argo logoArgo
Figma logoFigma

Experiences

Brief summary of the main experiences of my career.

Stone logo

Stone - Software Engineer

January 2024 - Present / Rio de Janeiro, Brazil.

Context:

Stone is one of the biggest payments companies in Brazil and Latin America. It offers payments and banking services to other big companies, so there are millions of users using its systems every day. I'm part of the platform and experience team.

Achievements:

  • I created 5 new applications for engineering teams including security services to facilitate the analyzing, granting and revoking access to company assets.
  • I created 3 big security automations systems to protect the company's intellectual property like the codes on Github and the client's data.
  • I made code refactorings and improvements in several legacy applications using Clean Code, Clean Architecture, Design Patterns and SOLID.
Pagar.me logo

Pagar.me - Software Engineer

September 2022 - December 2023 / Rio de Janeiro, Brazil.

Context:

Pagar.me is one of the biggest payment gateway in Brazil. I was part of the Atlas team and we were responsible for the entire reading layer, for attacking technical debts and making performance improvements in several of the company's applications and services, working horizontally with the company's other teams.

Achievements:

  • I increased performance by 30% in reading layer applications and brought more reliability in storage data.
  • I helped in the planning and development of a new reading layer model with the aim of reducing response time and increasing the security and reliability of stored information.
  • I made code refactorings and improvements in several legacy applications using Clean Code, Clean Architecture, Design Patterns and SOLID.
Mais Retorno logo

Mais Retorno - Fullstack Developer

June 2021 - August 2022 / São Paulo, Brazil.

Context:

Mais Retorno is a financial market and education company. It offers many tools for investors. I was responsible for planning, developing and improving new tools and products for the financial market, for fixing bugs and for helping my coworkers.

Achievements:

  • I built new tools, such as the asset comparator, income simulator, fund tracker, fund and stock sheets, government bonds and direct treasury.
  • I created a complete recurring subscription system for members.
  • I made several SEO improvements in the company's main web application.

About me

I'm passionate about programming and creating products and services that have value and solve some type of problem in society. I am always looking for new challenges that make me evolve as a person and professional. I hope to find people who, like me, have the desire to build great things.