Rogério Araújo

Rogério Araújo

Senior Software Engineer

About

Senior Software Engineer with 6+ years of experience designing and building scalable consumer products across mobile, web, and backend platforms. Currently working on sportsbook and iGaming systems serving 2M+ users at Pitaco (formerly Rei do Pitaco). Experienced in distributed systems, platform engineering, observability, experimentation, and technical decision-making, with a strong foundation in Flutter, React/Next.js, Rust, and Node.js. Passionate about solving complex technical problems and designing maintainable software.

Work Experience

  • Pitaco (formerly Rei do Pitaco) | São Paulo, Brazil (Remote)

    • Software Engineer L4

      2024-03-01 - Present

      Leading feature development across mobile, web, and backend platforms for a leading Brazilian sportsbook and iGaming company serving 2M+ customers.

      • Designed and delivered end-to-end features across mobile, web, and backend platforms, owning technical decisions from architecture to production rollout.
      • Built and evolved scalable services and user-facing applications supporting millions of customers, focusing on reliability, performance, and developer experience.
      • Designed technical solutions and RFCs for internal platforms, including authentication, authorization, auditability, and operational tooling.
      • Implemented observability and experimentation practices using Datadog, Statsig, Mixpanel, and AppsFlyer to improve product decisions and operational visibility.
    • Software Engineer L3

      2023-01-01 - 2024-02-29

      Gained deep expertise across app and web environments, operating within a fast-paced startup ecosystem.

      • Delivered new features across all platforms that significantly increased user activation, partnering closely with UX on design reviews.
      • Developed strong cross-platform expertise spanning mobile app and web development.
    • Software Engineer L2

      2022-03-01 - 2023-02-28

      Joined the startup at an early stage, building scalable software and driving website structuring and technical SEO analysis.

      • Built and maintained services on the main user Acquisition squad, handling thousands of daily users.
      • Designed, implemented, and deployed an internal tool for the 'Universo Pitaco' platform focused on content provisioning and SEO, using Angular Universal.
      • Drove on-page optimization and technical SEO initiatives in collaboration with the development team and stakeholders.
      • Improved acquisition website performance (http://reidopitaco.com.br).
      • Built a scalable content platform (https://reidopitaco.com.br/universo-pitaco).
  • SAP SE | Walldorf, Germany (Remote)

    • Software Developer

      2022-06-01 - 2022-12-30

      Worked in a global SAP engineering team building SaaS applications and cloud integrations using SAP BTP, Kubernetes, and modern JavaScript/TypeScript ecosystems.

      • Technologies: Github, Node.js, Javascript/Typescript, Jest, Karma, Git, CI/CD, Docker, Kubernetes, Kyma, SAP HanaDB, BTP, Jenkins, Fiori/UI5.
  • Nuveo Technologies Ltda. | São Paulo, Brazil (Remote)

    • Software Engineer

      2021-06-07 - 2022-02-11

      Built microservices and RESTful APIs for Nuveo's document and image intelligence products, including UltraOCR (https://ultraocr.com.br).

      • Technologies: Python, Golang, NodeJs, PostgreSQL, RabbitMQ, Redis, DynamoDB, Git, CI/CD, Docker, Kubernetes, Vue.js, Flask, Django, Nginx.
  • Open Source | Github

    • OSS Developer

      2019-01-01 - Present

      • Maintaining simple projects
      • Contribute to the Open Source community
  • Xekout Intermediação de Pagamentos Ltda. | Rio de Janeiro, Brazil (Remote)

    • Junior Full Stack Engineer

      2020-01-28 - 2021-05-15

      Built a web-based e-commerce checkout and dashboard system, owning both frontend (Vue.js) and backend (Node.js, PostgreSQL).

      • Technologies: GitHub, NodeJS, AdonisJS, NestJS, VueJS, TypeScript, MySQL, AWS, Heroku and Serverless.
  • Pitaya - Serviços de Tecnologia Ltda. | Cajazeiras, Paraíba, Brazil

    • Full-Stack Developer

      2019-07-01 - 2019-11-27

      Built a school transport management system with Java.

      • Technologies: Bitbucket, Spring Boot, Maven, and PostgreSQL.
  • Workana | Freelancer

    • Freelancer Web Developer

      2017-02-01 - 2018-01-01

      Worked as a freelancer building static, landing page, and dynamic websites using PHP, HTML, CSS, and Vue.js.

Stacks

Languages
TypeScript, Dart, Rust, Go, Python
Frontend & Mobile
Flutter, React, Next.js, Vue
Backend
Node.js, PostgreSQL, Redis, gRPC, BigQuery, TimescaleDB, Elasticsearch
Architecture
Distributed Systems, Microservices, Event-driven Architecture, System Design, REST, GraphQL
Cloud & DevOps
AWS, Docker, Kubernetes, GitHub Actions, CI/CD
Observability & Experimentation
Datadog, Statsig, Mixpanel, AppsFlyer

Education

  • Systems Analysis and Development, Technology,  Federal Institute of Education, Science and Technology of Paraíba, campus Cajazeiras, Brazil

    Aug 2016 - Sep 2020

Projects

  • minus.css 

    A small and minimalistic css framework.

    11

  • Reddish 

    A Rust utility library, making easier by taking the hassle out of working.

    11

  • Juno API 

    Plain lib that permits bindings for the Juno API.

    6

  • More Projects...
  • Talks

    Languages

    Brazilian Portuguese (Native speaker) English (Advanced)

    Last updated at September 23rd 2026, 2:34:00 pm