Aug 2024 – Oct 2025 · 1 yr 2 mos · Remote

• Gazeus Games is the largest developer of casual and social games in Brazil, founded in 2006 and headquartered in Rio de Janeiro. The company specialises in creating multi-platform versions of classic card and board games (such as Dominoes, Solitaire, and Mahjong) for a global audience on Android, iOS, and web browsers. With a portfolio of applications serving millions of players, the business model is primarily driven by in-app advertising and purchases, making monetisation and data analytics core to its success.
• As part of the core Engineering team, our mission is to design, build, and maintain the foundational libraries that power monetisation and analytics across Gazeus's entire portfolio of mobile games. We function as a platform engineering group, creating scalable and reusable tools that enable our game development teams to integrate quickly and reliably.
• Developed and maintained scalable, Kotlin-based Android SDKs for seamlessly integrating ads mediation
• networks such as AppLovin MAX, Google AdMob and X3M/Loomit on a portfolio of applications serving over 500,000 daily active users, focusing on performance optimisation and monetisation
• Designed features for a remotely-configurable system using backend-hosted JSON to manage event routing dynamically and business logic, decoupling it from the app release cycle and enabling rapid adjustments.
• Engineered a unified analytics library to abstract multiple third-party provider SDKs (e.g., Firebase, Adjust), creating a consistent data abstraction layer and improving observability.
• Collaborated cross-functionally with game development, monetisation and BI teams to integrate SDKs, providing technical support to resolve complex performance and ad rendering issues across diverse Android devices.
• Managed the full CI/CD lifecycle for Android libraries, automating versioning and deployment to a private Nexus repository using GitLab CI/CD pipelines.

Aug 2022 – Aug 2024 · 2 yrs · São Paulo, Brasil · Hybrid

• A Brazilian fintech and payment solutions provider, now part of the Grupo Entre ecosystem (which processed R$12.8B in 2024), serving over 10,000 points of sale across more than 2,000 municipalities through a unique franchise-based distribution model.
• Created, tested, and upheld a payment application for Android SmartPOS
• terminals in compliance with EMV and ISO8583 Standards, utilising Java and
• Kotlin.
• Designed, developed, tested, and maintained a Telemetry system to gather
• significant metrics from SmartPOS payment applications and transmit them to a
• service hosted on Azure through the gRPC framework.
• Refactored a payment application initially for a specific Android SmartPOS
• terminal to accommodate various devices from diverse manufacturers
• employing Gradle compilation tools.
• Spearheaded the development lifecycle of a new payment application from
• technical assessment to EMV certification on a new device, ensuring adherence
• to industry standards and best practices.
• Enhanced and sustained a legacy payment application for Linux POS terminals
• by incorporating new functionalities using C++, mainly integration with the
• instant payment service Pix.

Jan 2021 – Aug 2022 · 1 yr 7 mos · Remote

• Development of a cloud-based embedded payment application for Point of Sale Terminals using C++ 17.
• Activities:
• Refactoring of a single-platform legacy library for payment processing on the AWS Cloud according to the EMV Standard to a multi-platform solution;
• Development of embedded Graphical Interfaces with LVGL;
• Maintenance of CI/CD pipelines using Jenkins;
• Application maintenance and debugging;
• Developer role on an Agile Team using the Scrum framework.