Senior Android Engineer | Java | Kotlin | BLE | WiFi | Embedded Systems | Rooted Android

I am a Senior Software Engineer with 9 years of experience developing Android applications, embedded solutions, and connected device systems. My expertise includes Android Java, Kotlin, Bluetooth Low Energy (BLE), WiFi connectivity, rooted Android environments, system applications, TV remote control applications, and Set-Top Box (STB) solutions.

Throughout my career, I have designed, developed, maintained, and optimized Android applications used by thousands of users. I have extensive experience integrating hardware devices, troubleshooting complex connectivity issues, and delivering stable, production-ready applications.

In my recent leadership role, I managed and mentored a team of more than 20 software engineers across multiple locations, including Vietnam and the Philippines. I worked closely with stakeholders, product owners, QA teams, and clients to ensure successful project delivery while maintaining high development standards.

Key Skills:
• Android Development (Java & Kotlin)
• Bluetooth Low Energy (BLE)
• WiFi Connectivity
• Rooted Android & Magisk Environments
• Android System Applications
• TV Remote Control Applications
• Set-Top Box (STB) Development
• REST APIs Integration
• MVVM Architecture
• Jetpack Components
• Git Version Control
• Agile/Scrum Development
• Team Leadership & Mentoring

I am passionate about building high-quality Android solutions, solving challenging technical problems, and helping teams deliver successful products. I am available for long-term remote opportunities and can work independently or as part of a distributed team.

I am a versatile Full Stack Developer with experience building robust backend systems and responsive frontends using a wide tech stack. My backend expertise includes Node.js, Kotlin with Spring Boot, PHP (Laravel), and Python (Flask/Django), while my frontend skills cover React, React Native, and modern JavaScript. I work with PostgreSQL, MySQL, and MongoDB, and I’m skilled in creating RESTful APIs, real-time features (Twilio, WebSockets), and cross-platform mobile apps. Whether it's web apps, mobile apps, or backend services, I deliver clean, scalable, and production-ready solutions deployed on AWS, DigitalOcean, or your own VPS.

Computer Science student with practical experience in mobile development and web technologies. Skilled in Java, Kotlin, PHP, MySQL, and HTML, with hands-on projects involving Android applications, UI/UX design, and database-driven solutions. Experienced in building functional, user-friendly interfaces and integrating APIs to deliver polished digital products. Currently expanding expertise in Shopify development, e-commerce solutions, and digital product.

Software Engineer for web and mobile application.

I am a Computer Programmer and Software Developer with strong technical experience and education. The key strengths that I possess include:I have successfully designed, developed, and supported live use applicationsI strive for continued excellenceI provide exceptional contributions to customer service for all customers. With a degree in Computer Programming Major in IS/IT, I have a full understanding of the full life cycle of a software development project. I also have experience in learning and excelling at new technologies as needed.

I’m a Mobile Developer with over 7 years of experience building and maintaining Android applications using Java and Kotlin, plus 1 year of hands-on React Native development.

I specialize in creating clean, scalable, and high-performance mobile apps — from concept to deployment. My work focuses on responsive design, performance optimization, and seamless user experience. I also have strong skills in RESTful API integration, Material Design, and custom UI components.

I’m passionate about continuous learning, writing maintainable code, and delivering results that meet both user needs and business goals.

Android Native Development using Java & Kotlin, React Native, Javascript, Ionic, JAVA, JSON, XML, GIT, MYSQL, SQLITE, NoSQL, CouchBase, Redux, Project Lead and Management, System Analyst and Design.

I'm a seasoned Android Developer with 8+ years of experience in Kotlin/Java and a decade in IT. Currently, I work full-time as a Kotlin/Java Android Trainer, helping developers master mobile app development. Now, I'm seeking a part-time role in Mobile/Android Development to apply my expertise while continuing to teach.

I’m a results-driven Android developer with 5+ years of experience building elegant, scalable, and modern mobile applications. I specialize in Kotlin, Jetpack Compose, and Kotlin Multiplatform (KMP) to deliver seamless cross-platform experiences with shared business logic and native-level UI on both Android and iOS.

My technical foundation is built on Clean Architecture, MVVM/MVI patterns, and tools like Ktor, Dagger Hilt, Koin, and Room, allowing me to ship robust, testable, and maintainable apps. I’ve developed and maintained feature-rich applications ranging from health and weather apps to modern movie browsers and SaaS prototypes integrated with LLMs and Compose Multiplatform.

Known for writing clean code, being an efficient problem solver, and continuously adopting emerging technologies, I bring both innovation and reliability to the projects I work on.

Hi, I’m Jasper. I am a Computer Science student and developer specializing in mobile apps (Kotlin) and backend systems (Go).

Unlike general freelancers, I have deep technical interests in system optimization, including custom Android ROMs and kernel tuning. I am looking for part-time or project-based work where I can apply my coding skills to help you build or maintain your software.

My Tech Stack & Projects:

Android Development (Kotlin): Currently building "Itadaki," a full client application for a Japanese restaurant. I understand MVVM architecture and UI design.

Backend Engineering (Go/Golang): Currently developing "FrostByte-API," a backend service focused on performance and scalability.

Tools: Arch Linux, Git, REST APIs, and System Debugging.

My Availability: I have a dedicated schedule with full availability on Mondays and Wednesdays (your Sundays/Tuesdays). This allows me to focus deeply on your tasks twice a week without interruption, ensuring consistent progress on your projects.

I am eager to help you clear your backlog, fix bugs, or build new features. Let's chat!

Versatile software engineer currently working in a legaltech SaaS company based in Singapore since 2022.
Currently focused in ReactJS, NodeJS, ExpressJS, Typescript and Springboot Kotlin!

Driven and results-oriented Junior Programmer with a robust skill set spanning Python, JavaScript, SQL, PHP, CSS, C++, and Kotlin. I specialize in creating innovative, scalable, and efficient solutions for web, mobile, and software development projects. With a strong foundation in programming and a passion for technology, I excel at transforming complex ideas into seamless, user-focused applications. I am committed to continuous learning, mastering cutting-edge tools, and delivering exceptional results in dynamic, fast-paced environments. Whether collaborating on a team or working independently, I bring creativity, precision, and a relentless focus on achieving impactful outcomes.

Mobile Developer with 5+ years of experience in Android and Flutter, specializing in building user-focused apps, API integration, and performance optimization. Skilled in leading teams, managing app releases, and delivering innovative mobile solutions that enhance everyday experiences.

Recent Information Technology graduate with a strong aspiration to build a career in cybersecurity and a deep commitment to digital protection. Equipped with a solid foundation in problem-solving, team collaboration, and the use of modern technologies to enhance systems and operations. Eager to contribute in an entry-level role while actively embracing growth through ongoing learning and
professional development.