About Sammy
I am a Software Engineer with 5 years of professional experience in mobile and general software development. I specialize in Android development using Java and Kotlin, but my expertise extends to backend development with Java and the Spring Framework.
My academic work focused on applying machine learning for malware detection, giving me a strong foundation in data analysis, security concepts, and ML methodologies. I value clean architecture, maintainable code, and effective collaboration in multidisciplinary teams.
I bring a proactive mindset, strong analytical skills, and genuine curiosity for new technologies. Outside of work, I enjoy snowboarding, calisthenics, and video games.
Key Skills: Android Development, Java, Kotlin, Spring Framework, REST APIs, Unit Testing, Clean Architecture.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- ERPLY Retail PlatformKotlin/Android DeveloperRETAIL (LARGE RETAILERS)June 2023 - December 2025 (2 years and 6 months)Tallinn, Estonia
- Developed new Kotlin/Android applications from concept to deployment, ensuring smooth performance and user experience.
- Maintained and debugged existing Android apps, implementing efficient solutions to improve stability and performance.
- Integrated hardware devices including printers, payment terminals, and scanners, enabling seamless operations with mobile applications.
- Connected applications with in-house systems and third-party APIs for reliable data exchange and enhanced functionality.
- Managed GitLab repositories, ensuring clean version control, branching, and collaborative workflow.
- Published and updated applications on Google Play Store and other marketplaces, maintaining compliance and app quality.
- Developed JavaScript and Tizen applications for cross-platform and smart device solutions.
- Mobi LabMobile Software EngineerTECHJanuary 2022 - May 2022 (4 months)Estonia
- Maintained and debugged existing Android applications, resolving issues to improve stability and user experience.
- Managed GitLab repositories, ensuring organized version control and smooth collaboration.
- NTT DATAJunior Software EngineerBANKING AND INSURANCEMarch 2020 - February 2021 (11 months)Lima Province, Peru
- Developed onboarding features for a banking application, ensuring smooth and secure user experience.
- Integrated applications with in-house APIs and UI components for seamless functionality.
- Created unit tests to ensure code quality and reliability.
- Technologies: Kotlin, Android, Unit Testing, API Integration, UI Components.
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Education
- MSc in CybersecurityTalTech – Tallinn University of Technology2025Studied the legal, human, and technological aspects of cybersecurity, including cryptography, ethical hacking, secure web development, and machine learning. Gained practical knowledge in applying security best practices, analyzing vulnerabilities, and developing secure applications.
- Computer and systems engineeringUniversidad de San Martín de Porres2017Studied software engineering processes and development tools, gaining hands-on experience in designing, building, and managing software systems. Developed a strong foundation in programming, system design, and integration, combining technical skills with practical methodologies for efficient and reliable software development.