Available to hire
I am an experienced Android developer with over 9 years specializing in building native, fast, and responsive Android applications. I also have 7 years of experience designing and developing back-end and desktop applications using Java frameworks. I thrive in various team sizes and foster open communication, mentoring junior developers, and collaborating closely with peers to share innovative development ideas.
I enjoy solving complex technical challenges requiring critical thinking, and I am always open to receiving constructive feedback to continue growing professionally. Fully bilingual in English and Spanish, I continuously update my knowledge through courses, events, and hands-on experience to deliver high-quality technological solutions.
Language
English
Fluent
Spanish; Castilian
Fluent
Work Experience
Sr. Android Developer at Parzr Consulting
October 1, 2024 - PresentDeveloped and maintained the Parzr Market Inventory Management application for small businesses and warehouses, improving inventory tracking and sales processes. Implemented Jetpack Compose with Material 3 for UI, automated stock replenishment using advanced algorithms, and ensured code quality with pull request reviews and testing using Espresso and Mockito. Provided technical guidance and security measures to protect sensitive data while collaborating on UI design improvements and researching suitable technologies.
Sr. Android Developer at Fiserv
October 1, 2024 - August 29, 2025Designed comprehensive test cases and ensured Android app functionality through rigorous testing with Espresso and Mockito. Collaborated with development teams to improve app reliability, scalability, and performance, providing technical insights and enforcing clean architecture principles. Contributed to debugging and documentation to enhance development processes and app stability.
Sr. Android Developer at Meijer Inc
February 1, 2024 - August 29, 2025Led migration to Jetpack Compose to enhance UI optimizations and replaced multithreading operations with coroutines. Mentored new developers on coding standards, worked collaboratively across backend and iOS teams, and participated in pair programming sessions. Provided technical advice and maintained code quality through reviews, while delivering technical presentations to leadership.
Sr. Android Developer at Toyota / Lexus
February 1, 2022 - August 29, 2025Developed with Kotlin and Java following best practices, mentored a team of Android developers, and improved app implementations with proper product flavors and device performance optimizations. Managed requirement gathering, code reviews, migration from Bing Maps to Google Maps, and supported multi-device UI compatibility. Acted as technical lead enforcing coding standards and best practices.
Sr. Android Developer at Aviation Mobile
December 1, 2020 - August 29, 2025Led architectural implementation for a suite of applications aimed at the aviation industry. Developed centralized service components with Retrofit, used Kotlin Flows and Channels for background tasks, and incorporated Android Wear support. Designed scheduling features using Material Design and created test cases to validate business logic. Collaborated closely with business analysts on requirements gathering.
Sr. Android Developer at J.C. Penney
April 1, 2020 - August 29, 2025Implemented Material Design-based UI with MVVM architecture and data binding, migrating the app to Kotlin with best practices. Added features such as associate locating and bug fixes with version control using Git. Created and maintained test cases ensuring app stability and functionality.
Sr. Android Developer at Smart Apps - Clover Layaway
June 1, 2019 - August 29, 2025Developed a layaway management application integrated with Clover SDK and payment APIs including Android Pay and PayPal. Supported tablets and device rotation, NFC operations, and barcode scanning for reward cards. Used Leak Canary for crash detection and managed version control with TFS and Git.
Sr. Android Developer at Assemblers, Inc
January 1, 2019 - August 29, 2025Designed features and provided UX/UI feedback for multiple applications including MyToolBox and Timesheet Express. Delivered architectural pattern designs and UI/UX samples, fixed critical bugs, and developed the BitLynx Chat application for internal use. Provided remote support and training materials for project interns.
Android Developer and Java Consultant at LINE DATA
October 1, 2018 - August 29, 2025Acted as client-facing contact to gather requirements and design patterns for a financial app handling credit and leasing requests. Developed Android UI components and Spring Boot backend services. Diagnosed and resolved API performance issues using JIRA and tracking tools.
Android & Web Developer at Softtek
May 1, 2018 - August 29, 2025Contributed to backend migration from JSP to Spring Boot and Maven for InterContinental Hotels Group. Developed REST APIs, troubleshooted with APIGEE, Akamai, and AppDynamics. Integrated Jenkins for CI builds and used SQL for data querying. Supported web, mobile, and java backend debugging.
Android & Web Developer Intern at Nissan Mexicana
June 1, 2015 - August 29, 2025Supported the production line application for inventory and spare parts distribution. Learned project architecture and created user stories and designs. Maintained the application using Java and UI frameworks.
Sr. Android Developer at Parzr Consulting
October 1, 2024 - PresentDeveloped the Parzr Market Inventory Management app to optimize inventory and sales for small businesses and warehouses. Implemented inventory tracking systems, automated stock replenishment, and used Jetpack Compose with Material 3 for UI development. Applied coroutines and flows for efficient asynchronous data handling. Tested with Espresso and Mockito. Advised project managers and ensured security measures protected sensitive inventory data. Collaborated on UI improvements and code reviews to maintain quality.
Sr. Android Developer at Fiserv
October 1, 2024 - August 29, 2025Designed and executed test cases validating Android app performance and functionality. Used Espresso and Mockito for unit and UI testing, collaborated closely with the dev team to enhance app architecture, and contributed to improving reliability, scalability, and performance. Provided technical insights, streamlined automated testing practices, and reviewed code to enforce clean architecture principles. Supported debugging and documented testing results for continuous improvements.
Sr. Android Developer at Meijer Inc
February 1, 2024 - August 29, 2025Migrated the Meijer app UI to Jetpack Compose for optimization and replaced many multithreading operations with coroutines. Mentored new developers on coding standards and collaborated cross-functionally with backend and iOS teams. Conducted code reviews and pair programming sessions, provided technical advice across teams, and developed reusable UI components aligned with Material Design. Presented technical progress to leadership.
Sr. Android Developer at Toyota / Lexus
February 1, 2022 - August 29, 2025Led Kotlin and Java development for the One App platform, allowing users to control vehicle features and schedule services. Mentored two Android developers, improved app implementation using flavors, and managed requirements gathering for app redesign. Conducted code reviews, enforced coding standards as technical lead, migrated mapping services from Bing to Google Maps, created custom reusable UI components, and enhanced device performance and support for tablets and multiple screen resolutions.
Sr. Android Developer at Aviation Mobile
December 1, 2020 - August 29, 2025Managed architectural design of a suite of apps for the aviation industry to improve communication between Mechanics, Pilots, and clerks. Worked closely with Business Analysts on requirements. Used MVVM architecture with lifecycle components and centralized API calls. Developed challenging scheduling features using Material Design and supported Android Wear integration. Created test cases validating business logic and handled bug fixes.
Sr. Android Developer at J.C. Penney
April 1, 2020 - August 29, 2025Implemented user interfaces based on Material Design and incorporated MVVM with data binding for maintainability. Migrated the app to Kotlin following best practices, fixed bugs, added features such as associate location, and managed version control using Git. Created test cases to validate business logic.
Sr. Android Developer at Smart Apps - Clover Layaway
June 1, 2019 - August 29, 2025Developed the Layaway app with MVVM design and Material Design UI for managing payment agreements. Integrated APIs for Android Pay and PayPal, supported 7" and 9" tablets with screen rotation, NFC operations, and barcode reading. Used TFS and Git for version control and integrated with Clover SDK for web service interaction. Standardized crash detection with Leak Canary.
Sr. Android Developer at Assemblers, Inc
January 1, 2019 - August 29, 2025Collaborated with React Native developers to solve complex challenges and deliver features for MyToolBox and Timesheet Express applications. Provided architecture and UI/UX design samples, fixed critical bugs, and architected the BitLynx Chat application. Provided remote support and training materials for interns.
Android Developer and Java Consultant at LINE DATA
October 1, 2018 - August 29, 2025Served as client liaison and gathered requirements for a financial application in credit and leasing requests. Developed Android components and Java Spring Boot API services. Provided architectural guidance, debugged issues, and tracked performance using JIRA. Worked on Android SDK versions 4.4 to 8.0.
Android & Web Developer at Softtek
May 1, 2018 - August 29, 2025Contributed to the InterContinental Hotels Group app and web application by migrating backend systems from JSP to Spring Boot and Maven. Created REST APIs with JSON and SOAP, integrated Jenkins, and used SQL for querying. Performed debugging and troubleshooting on web, mobile, and backend components.
Android & Web Developer Intern at Nissan Mexicana
June 1, 2015 - August 29, 2025Supported and maintained the Production Line application responsible for spare parts inventory and distribution. Learned project architecture, created user stories, requirements, and designs, and worked on Java and UI framework support.
Sr. Android Developer at Parzr Consulting
October 1, 2024 - PresentAt Parzr Consulting, I developed custom and internal applications focusing on inventory and sales management for small businesses and warehouses. I implemented a new inventory tracking system, automated stock replenishment, and used Jetpack Compose with Material 3 for UI construction. I applied coroutines and flows for efficient data flow, conducted testing using Espresso and Mockito, reviewed pull requests to ensure code quality, collaborated on UI design improvements, provided technical guidance to project managers, implemented security measures, and researched appropriate technologies based on requirements.
Sr. Android Developer at Fiserv
October 1, 2024 - August 29, 2025Developed comprehensive test cases to validate Android app performance and functionality, ensuring seamless user experience. Leveraged Espresso and Mockito for unit and UI testing, collaborated with development teams to identify improvements, contributed to code quality through reviews adhering to clean architecture principles, supported debugging efforts, and helped implement best practices for automated testing to streamline development cycles.
Sr. Android Developer at Meijer Inc
February 1, 2024 - August 29, 2025Migrated the Meijer app to Jetpack Compose for optimized UI, replaced multithreading operations with coroutines, mentored junior Android developers on coding standards, tested using Espresso and Mockito, collaborated with backend and iOS teams, reviewed pull requests, researched technologies to implement, participated in pair programming, advised on technical matters, programmed maintainable and reusable UI components, and presented technical progress to directors.
Sr. Android Developer at Toyota
February 1, 2022 - August 29, 2025Developed the Toyota One App using Kotlin and Java, mentoring a small developer team. Improved app flavors per Google recommendations, participated in requirement gathering, enforced coding standards and best practices as technical lead, conducted stakeholder meetings, implemented changes for AndroidX, created reusable custom views, optimized performance for older devices, supported multiple screen resolutions and devices including tablets and phones, streamlined Gradle build pipeline, and wrote custom Gradle tasks to maintain code quality.
Sr. Android Developer at Aviation Mobile – Android Application
December 1, 2020 - August 29, 2025Led architectural implementation of a suite of aviation communication apps using MVVM with lifecycle components. Created centralized service components for API calls, utilized Kotlin Flows and Channels, provided bug fixes, developed challenging scheduling features with Material Design, enabled communication with Android Wear apps, wrote test cases for business logic, developed modular Gradle setup with dynamic feature modules, implemented CI/CD with GitHub Actions and Fastlane, and introduced contract-first API strategy reducing integration defects by 60%.
Sr. Android Developer at J.C. Penney
April 1, 2020 - August 29, 2025Implemented user interfaces based on Material Design, applied MVVM with data binding, migrated app to Kotlin, provided bug fixes, developed features such as associate location, managed version control using Git, and created test cases for business logic validation.
Sr. Android Developer at Smart Apps - Clover Layaway
June 1, 2019 - August 29, 2025Designed UI based on Material Design, applied MVVM with data binding, integrated multiple mobile payment APIs (Android Pay, PayPal), supported 7 and 9-inch tablets with orientation changes, implemented NFC and barcode reading for rewards, used TFS and Git version control, and integrated the Clover SDK to connect with web services. Also implemented Leak Canary for crash detection.
Sr. Android Developer at Assemblers, Inc
January 1, 2019 - August 29, 2025Designed features for applications such as MyToolBox, provided UX/UI feedback, collaborated with developers on Timesheet Express, contributed architecture pattern designs, fixed critical bugs, and currently working on BitLynx Chat application architecture and implementation. Provided remote support and developed training materials for interns.
Android Developer and Java Consultant at LineData
October 1, 2018 - August 29, 2025Served as client-facing contact to surface client needs, gathered designs and requirements for full cycle application development in Android and Java Spring Boot. Provided architecture pattern designs, worked on UI components, supported API services, debugged API performance issues, and managed issues using tracking tools.
Android & Web Developer at Softtek
May 1, 2018 - August 29, 2025Worked on converting backend systems from JSP to Java Spring Boot and Maven, created REST APIs returning JSON or SOAP, used APIGEE, Akamai, AppDynamics, Kibana for troubleshooting, integrated Jenkins builds, performed SQL querying, and debugged web, mobile, and Java backend issues.
Android & Web Developer (Production Line Application) at Nissan Mexicana
March 1, 2016 - August 29, 2025Supported and enhanced an inventory and spare parts distribution application for production lines. Learned project architecture, created user stories and requirements, worked with Java and UI frameworks, and contributed to supporting the app.
Sr. Android Developer at Parzr Consulting
October 1, 2024 - PresentDeveloped custom and internal Android applications, including the Parzr Market Inventory Management app to streamline inventory and sales for small businesses and warehouses. Implemented inventory tracking systems, automated stock replenishment, and used modern Android technologies such as Jetpack Compose with Material 3, coroutines, flows, and MVVM architecture. Ensured high code quality via pull-request reviews, testing with Espresso and Mockito, and applied security measures to protect data. Provided technical advice to project managers and contributed to UI design improvements based on Material Design guidelines.
Sr. Android Developer at Fiserv
October 1, 2024 - August 29, 2025Designed and executed comprehensive test cases to validate Android app performance and functionality, using tools like Espresso and Mockito for unit and UI testing. Collaborated with development teams to enhance app reliability, scalability, and performance, incorporating clean architecture principles. Assisted debugging, troubleshooting, code reviews, and helped implement best automated testing practices to optimize development cycles.
Sr. Android Developer at Meijer Inc
February 1, 2024 - August 29, 2025Led migration to Jetpack Compose for UI optimization, replaced multithreading with Kotlin coroutines, and mentored new Android developers on coding standards. Collaborated cross-functionally with backend and iOS teams, reviewed pull-requests, researched technologies, participated in pair programming, and provided technical guidance. Delivered maintainable, reusable UI components and presented technical progress to directors.
Sr. Android Developer at Toyota
February 1, 2022 - August 29, 2025Developed common platform Android apps for Toyota and Lexus, enabling vehicle control features. Mentored a team of two developers, led technical standards enforcement, participated in requirements gathering and redesign, conducted code reviews, and implemented features for device performance, tablet support, and multi-resolution adaptation. Optimized the Gradle build pipeline and created custom Gradle linting/quality tasks, improving build times and code quality.
Sr. Android Developer at Aviation Mobile – Android Application
December 1, 2020 - August 29, 2025Managed architecture and development of a suite of apps for aviation industry communication. Used MVVM with lifecycle and shared components, Kotlin flows and channels for asynchronous tasks, created scheduling features with Material Design, integrated Android Wear communication, developed test cases, modularized Gradle setup, and implemented CI/CD pipelines. Introduced contract-first API strategies for backend-mobile alignment.
Sr. Android Developer at J.C. Penney
April 1, 2020 - August 29, 2025Implemented MVVM architecture with data binding, migrated codebase to Kotlin, developed new app features such as associate location, supported bug fixes, managed version control with Git, and created business logic test cases.
Sr. Android Developer at Smart Apps - Clover Layaway
June 1, 2019 - August 29, 2025Developed a payment and layaway app integrating Android Pay, PayPal, NFC, barcode scanning and Clover SDK. Designed UI based on Material Design, supported multiple tablet sizes and rotations, implemented bug fixes, and used TFS and Git for version control.
Sr. Android Developer at Assemblers, Inc
January 1, 2019 - August 29, 2025Architected and implemented Android components for client applications like MyToolBox and Timesheet Express, provided UX/UI design guidance, fixed critical bugs, and led the architecture of BitLynx Chat app.
Android Developer and Java Consultant at LINEDATA
October 1, 2018 - August 29, 2025Served as client-facing contact for design and requirement gathering on a financial credit/leasing Android app and JSP portal. Provided architecture guidance, implemented UI components, contributed to Java Spring Boot back-end API design, and debugged issues.
Android & Web Developer at SOFTTEK
May 1, 2018 - August 29, 2025Converted backend systems from JSP to Spring Boot and Maven, created RESTful APIs, used APIGEE and other tools for troubleshooting, integrated Jenkins for builds, wrote SQL queries, and provided debugging and support for mobile and web applications.
Android & Web Developer Intern at Nissan Mexicana – Production Line Application
March 1, 2016 - August 29, 2025Supported and maintained an inventory and spare parts distribution app for the production line. Learned project architecture, user story creation, requirements, and design while working with Java and UI frameworks.
Education
Bachelor's Degree in Information Technology and Communications at Instituto Tecnológico de Aguascalientes (ITA)
January 1, 2010 - January 1, 2015Bachelor's degree in information technology and communications at ITA
January 1, 2010 - January 1, 2015Bachelor's in Information Technology and Communications at ITA
January 1, 2010 - January 1, 2015Certification and Specialization in the Automotive Industry at ITESM
January 1, 2015 - January 1, 2015Bachelor's degree in Information Technology and Communications at ITA
January 1, 2010 - January 1, 2015Qualifications
Certification and Specialization in the Automotive Industry
January 1, 2015 - December 31, 2015Certification and Specialization in the automotive industry
January 1, 2015 - December 31, 2015Certification and Specialization in the Automotive Industry
January 1, 2015 - January 1, 2015Certification and Specialization in the automotive industry
January 1, 2015 - December 31, 2015Industry Experience
Financial Services, Manufacturing, Retail, Travel & Hospitality, Software & Internet, Transportation & Logistics, Professional Services
Hire a Developer
We have the best developer experts on Twine. Hire a developer in Plano today.