Waseem M.

Freelance Mobile App Developer

Fiverr • Selbstständig

Jul 2018 - Present • 7 yrs 10 mos

As a Fiverr Pro & Top-Rated freelance mobile app developer, I provide end-to-end mobile application solutions for startups, agencies, and growing businesses worldwide. Through Codetivelab, I specialize in building scalable, production-ready Android and cross-platform applications with a strong focus on performance, clean architecture, and long-term maintainability. I develop native Android applications using Java and Kotlin, and also deliver cross-platform apps with Flutter, allowing clients to efficiently launch high-quality products on both Android and iOS. My development approach is rooted in SOLID principles and Clean Architecture, ensuring codebases remain robust, testable, and easy to scale as products grow. Beyond development, I take full ownership of projects — from technical planning and architecture decisions to implementation, testing, and delivery. I regularly handle third-party SDK and API integrations, maintain codebases using version control systems, and perform performance analysis and optimization using profiling tools to deliver smooth, reliable user experiences. As a freelancer, I also collaborate with distributed teams and stakeholders, coordinate timelines, and ensure deliverables meet both technical and business expectations. When projects require it, I mentor and guide other developers, assist in resolving complex technical challenges, and help maintain high development standards across teams. My goal is to deliver clean, scalable, and business-ready mobile applications while providing clear communication, reliability, and long-term value to every client engagement.

Software Developer

Buzzwaretech • Vollzeit

Aug 2020 - Dec 2021 • 1 yr 4 mos

was promoted to Team Lead of the Android Development team, where I took ownership of both technical execution and team leadership. I led the development of high-quality native Android applications using Java and Kotlin, while simultaneously expanding our capabilities by learning and contributing to Flutter-based hybrid app development. I consistently wrote scalable, clean, and well-maintained code, following SOLID principles and Clean Architecture to ensure long-term maintainability and performance. In my role, I effectively delegated tasks, monitored progress, and ensured timely delivery of all assigned milestones. I worked extensively on third-party SDK integrations, adhered to industry best practices, and maintained codebases using version control systems (VCS). To ensure optimal app performance, I conducted performance analysis and optimization using Android profilers. Beyond development, I actively supported and mentored team members, helping them resolve technical challenges and improve their skill sets. I also played a key role in training junior developers, fostering a collaborative and growth-oriented team environment. Additionally, I coordinated closely with management and cross-functional teams to align technical execution with business goals, ensuring that all projects were delivered on time and met quality and performance standards.