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Luciano Santos

@lucianosantos1

Senior mobile engineer at Zoop who developed an Android SoftPOS SDK for a Nubank pilot and automated white-label releases for 30+ clients.

Brazil

Message

At Zoop, I developed an Android SoftPOS SDK for a Nubank pilot and automated white-label releases for 30+ clients, reducing release time from one week to about 20 minutes. I also built payment applications for Bluetooth- and USB-connected terminals, sharing business logic across smartphones, Smart POS devices, and desktop platforms.

At Aditum, I took ownership of technical strategy and developed a white-label POS solution across Android Smart POS, Linux POS, and desktop integrations. I integrated payment solutions with major Brazilian acquirers and obtained EMV certifications for Mastercard, Visa, Amex, and Elo.

My work also includes cross-platform medical-device interfaces at VitalTrace and Android payment SDKs for BTG Pactual’s SmartPOS solution. I built Interval Timer and AnyTV Remote, mobile apps published on Google Play and the App Store.

Experience

Work history, roles, and key accomplishments

Senior Software Engineering Consultant

Confidential Company

Nov 2025 - Jun 2026 (7 months)

Developed Android payment SDKs and a white-label application for BTG Pactual's SmartPOS solution, supporting Positivo terminals and EMV transaction flows. Participated in architecture decisions and prepared the solution for certification readiness.

Android SDK Kotlin Jetpack Compose Hexagonal Architecture MVVM MVI GitHub Actions Test Driven Development MockK Koin ROOM Ktor Firebase

Senior Software Engineer

VitalTrace

Apr 2024 - Oct 2025 (1 year 6 months)

Contributed to a successful clinical trial of a medical device prototype across 4 hospitals in Australia. Developed cross-platform HMIs for medical devices using C++/Qt and integrated BLE communication with embedded systems.

C++20 Qt Framework QML Python Streamlit AWS GitHub Actions

Senior Software Engineer

Zoop

Apr 2023 - Apr 2024 (1 year)

Engineered an Android SoftPOS SDK for contactless payments, deployed as the pilot client for Nubank. Built payment applications for Bluetooth and USB terminals and automated white-label releases for 30+ clients.

Android SDK Kotlin KMP Jetpack Compose XML Views Firebase Analytics Fastlane Swift MVVM MVI

Senior Software Engineer

Cloud Walk

Aug 2022 - Oct 2022 (2 months)

Ported InfinitePay's Smart POS application to the Ingenico DX8000 platform, expanding supported terminal hardware. Introduced unit testing and TDD practices and implemented CI pipelines with GitHub Actions.

Android SDK XML Views Java Kotlin GitHub Actions EMV Technology

Lead Software Engineer

Aditum

Feb 2019 - Mar 2022 (3 years 1 month)

Promoted from Software Engineer to Lead, taking ownership of technical strategy and architecture decisions. Developed a white-label POS solution across Android, Linux, and desktop, reaching nearly 500 terminals in production.

Qt6 C++QML Android Java Gradle .NET Core Unit test Azure DevOps EMV Technology

Software Engineer

Stone

Nov 2016 - Feb 2019 (2 years 3 months)

Contributed to a new POS project for embedded Linux from its beginning, which grew to serve over 100,000 terminals. Developed Qt/C++ applications for mobile POS devices and introduced a Hexagonal Architecture port-adapter layer.

C++ 14 Qt Framework QML JavaScript Azure DevOps EMV Technology