Summary
Overview
Work History
Education
Skills
Websites
Certification
Languages
Timeline
Generic

Eduardo Sampaio

Brasília,Federal District

Summary

Senior Mobile Engineer with over 10 years of experience delivering impactful solutions in the financial sector. Expertise in Android and Kotlin Multiplatform development, complemented by a robust background in full-stack and cross-platform environments, including React Native and Flutter. Successfully led the development of mobile banking applications and POS integrations for major institutions such as Banco Original, Banco do Brasil, and PicPay, achieving significant performance optimizations that enhanced App Store ratings and pioneered innovations in secure digital transactions. Committed to bridging business needs with technical execution to improve team efficiency and deliver high-quality, user-centric mobile experiences that drive measurable results. Open to international opportunities for growth and collaboration.

Overview

15
15
years of professional experience
1
1
Certification

Work History

Senior Android Engineer

RS Solutions
06.2024 - Current
  • - Developed an Android-based payment solution from scratch for smart POS devices, with an emphasis on low-bandwidth environments.
  • - Integrated multiple payment SDKs and optimized system architecture to support retail and self-service platforms such as kiosks and payment terminals.
  • - Resulted in a scalable and cost-efficient platform suitable for businesses of all sizes, reducing operational expenses related to network consumption.

Senior Systems Analyst (Mobile)

PicPay
07.2023 - 04.2024
  • - Built a data integration platform to consolidate user metrics from multiple sources, boosting sales team productivity through real-time dashboards.
  • - Designed and implemented tools to support commercial strategies, increasing customer retention and improving internal lead conversion processes.
  • - Worked in cross-functional squads closely aligned with business units to streamline product offerings.
  • Remote

iOS Software Engineer

Banco Original
01.2021 - 07.2023
  • - Led enhancements to the bank's iOS mobile app, focusing on performance optimization and stability, which contributed to maintaining a rating above 4.0 on the App Store.
  • - Delivered key features for credit card management, Pix transactions, and chatbot interactions, significantly improving the user experience and app reliability.
  • - Contributed to security and performance upgrades, increasing user satisfaction and retention.
  • Remote

Senior Software Engineer

Cast Group
04.2018 - 12.2020
  • - Contributed to the
  • Ourocard app
  • integrating Apple Wallet functionality and improving digital card usage.
  • - Participated in high-security internal projects, including biometric authentication (fingerprint and facial recognition) and development of a secure software module integrated into core banking apps.
  • - Developed internal tools such as the BB Employees App and an AngularJS-based platform for back-office operations.

Android Developer

Cabal Brasil
10.2016 - 03.2018
  • - Maintained and enhanced Android applications for financial institutions including Sicobcard, Cecred Cartões, and Unicred Cartões.
  • - Focused on performance optimization and UX improvements, ensuring app stability and compatibility across devices.
  • - Supported internal apps for financial operations, aligning mobile functionality with institutional workflows.

Developer

e-Sec Segurança Digital
02.2014 - 10.2016
  • - Supported transaction authorization system maintenance and enhancements in a high-availability banking environment.
  • - Gained foundational experience with Java EE stack and enterprise-grade backend systems.

Internship

Cabal Brasil
03.2013 - 12.2013
  • - Supported transaction authorization system maintenance and enhancements in a high-availability banking environment.
  • - Gained foundational experience with Java EE stack and enterprise-grade backend systems.

Internship

Eletronorte
07.2012 - 03.2013
  • - Contributed to a web application for managing electricity distribution points, developing new features and maintaining system stability.
  • - Assisted in UI improvements and backend logic using open-source technologies.

Scientific Initiation

Universidade Católica de Brasília - UCB
03.2011 - 04.2012
  • - Collaborated on the development of SAE, an intelligent tutoring system capable of tracking student progress and offering real-time guidance. Used by hundreds of students
  • - The platform was later released as open-source software on Brazil’s Public Software portal.

Education

MBA - Mobile Applications Project

Instituto De Gestão E Tecnologia Da Informação
Belo Horizonte, MG, Brazil
01.2018

Bachelor of Science - Computer Science

Universidade Católica De Brasília
Brasília, DF, Brazil
01.2013

Skills

  • Android development
  • Kotlin programming
  • Mobile app architecture
  • Automated testing
  • Performance optimization
  • Clean architecture
  • Firebase integration
  • Multitasking Abilities
  • Organizational skills
  • Team collaboration
  • Active listening
  • Effective communication

Websites

Certification

  • 1Z0-804 Java SE 7 Programmer 2
  • 1Z0-803 Java SE 7 Programmer 1
  • IBM Certified Academic Associate DB2 9 Database and Application Fundamentals

Languages

Portuguese (Native or Bilingual)
English (Professional Working)

Timeline

Senior Android Engineer

RS Solutions
06.2024 - Current

Senior Systems Analyst (Mobile)

PicPay
07.2023 - 04.2024

iOS Software Engineer

Banco Original
01.2021 - 07.2023

Senior Software Engineer

Cast Group
04.2018 - 12.2020

Android Developer

Cabal Brasil
10.2016 - 03.2018

Developer

e-Sec Segurança Digital
02.2014 - 10.2016

Internship

Cabal Brasil
03.2013 - 12.2013

Internship

Eletronorte
07.2012 - 03.2013

Scientific Initiation

Universidade Católica de Brasília - UCB
03.2011 - 04.2012

MBA - Mobile Applications Project

Instituto De Gestão E Tecnologia Da Informação

Bachelor of Science - Computer Science

Universidade Católica De Brasília

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