Filip S.
Mobile App Developer
Mobile Developer with 4+ years of experience building production-ready applications for both iOS and Android using Flutter. I've worked on projects ranging from healthcare and business management platforms to e-commerce solutions, taking products from initial idea to release and ongoing maintenance. My experience includes developing responsive mobile applications, integrating REST APIs, implementing authentication and user management, handling push notifications, and creating scalable architectures that are easy to maintain and extend. I’m comfortable working with technologies such as Flutter, Firebase, AWS Cognito, Spring Boot, and various third-party integrations. Beyond client work, I’ve also built and maintained my own products, which has given me a strong understanding of both the technical and business side of software development. I focus on writing clean, maintainable code, communicating clearly throughout the project, and delivering solutions that provide real value to end users. If you're looking for a developer who can take ownership of a mobile project and help turn an idea into a polished product, I'd be happy to discuss your project.
Earnings and projects
Last 6 months ÷ 2, the fewest it counts (since Sep 2026)
Read daily since Oct 22, under 30 days
Billed in all: $1,201$1.2k
$578 in the last 6 months
Earnings, last 30 days
Tracked from Oct 22, 2026.
Skill rankings: Top 13% in Java
Ranked by MRR among everyone on Upwork with the skill.
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