Software Developer (Android)

Kavaliro; Jacksonville (FL); On-site; USD 85,000 - 110,000; Full time

Job summary

Kavaliro seeks an Android Payment Application Developer in Jacksonville, FL to build Android-based payment apps that run on payment terminals. You will work with product managers, QA, UX, and other developers to deliver reliable, secure solutions.

Responsibilities include SDLC involvement, feature development, testing, and maintenance of payment software that integrates with hardware and payment networks.

Qualifications

• 2+ years of professional Android development experience using Java and/or Kotlin.
• Strong understanding of Android Studio, Android SDK, and modern Android app architecture.
• Experience with REST APIs, SQLite, and mobile app debugging tools.
• Experience developing payment, POS, or financial transaction apps preferred.

Responsibilities

• Design, develop, test, and support Android applications for payment terminals.
• Develop features using Java/Kotlin, Android SDK, and third‑party payment libraries.
• Integrate apps with payment hardware (card readers, PIN pads, printers, scanners).
• Collaborate with cross‑functional teams to meet technical and business goals.
• Investigate issues, identify root causes, and implement fixes.
• Produce technical docs for design, development, and support.
• Ensure performance, scalability, reliability, and security requirements.

Skills

Android development (Java/Kotlin)

Android Studio

REST APIs

Debugging tools

Problem solving

Communication

Education

Bachelor's degree in CS/Software Engineering or related

Tools

Git

SQLite

POS integration libraries

Job description

Our client is seeking an Android Payment Application Developer to join their development team. In this role, you’ll build and enhance Android-based payment applications that run on payment terminals. You’ll be involved throughout the software development lifecycle from designing and developing new features to testing, troubleshooting, and maintaining secure payment solutions. Working closely with product managers, QA, UX designers, and fellow developers, you’ll help deliver reliable, high-performance applications that integrate with payment hardware and meet industry security standards.

Location: Jacksonville, FL (Onsite) Schedule: Monday - Friday, 9:00 AM - 6:00 PM

Key Responsibilities

• Design, develop, test, and support Android applications for payment terminals.
• Develop new features using Java, Kotlin, Android SDK, and third-party payment libraries.
• Integrate applications with payment hardware, including card readers, PIN pads, receipt printers, scanners, and other POS peripherals.
• Partner with cross-functional teams to deliver software that meets both technical and business objectives.
• Investigate software issues, identify root causes, and implement effective fixes.
• Produce and maintain technical documentation for application design, development, and ongoing support.
• Ensure applications meet performance, scalability, reliability, and security expectations.
• Participate in code reviews and follow established software development best practices.
• Contribute to process improvements and share knowledge with the development team.
• Stay current on Android technologies, payment industry trends, and emerging development tools.

What We’re Looking For

• At least 2+ years of professional Android development experience using Java and/or Kotlin.
• Strong understanding of Android Studio, Android SDK, and modern Android application architecture.
• Experience working with REST APIs, SQLite, and mobile application debugging tools.
• Previous experience developing payment, point-of-sale (POS), or financial transaction applications is strongly preferred.
• Familiarity with EMV standards and payment processing technologies is a plus.
• Knowledge of source control, testing methodologies, code reviews, and other software development best practices.
• Strong analytical thinking and problem-solving abilities with the ability to troubleshoot complex technical issues.
• Excellent verbal and written communication skills.
• Comfortable working in a collaborative, cross-functional environment with both local and global teams.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent professional experience.
• Mandarin language skills are a plus but not required.

Kavaliro provides Equal Employment Opportunities to all employees and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Kavaliro will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please respond to this posting to connect with a company representative.