c
cross_eight

Cross E

@cross_eight

I build clean, high performance apps that run smoothly on both iOS and Android

United States
English
About me
Hi! I’m a passionate mobile app developer specializing in cross-platform apps using Flutter and React Native. I build clean, high-performance apps that run smoothly on both iOS and Android — perfect for startups, businesses, or anyone launching an MVP. From UI/UX design to API integration, Firebase backend, push notifications, and app store deployment — I handle the full app lifecycle with a focus on scalability, usability, and performance. Let’s turn your app idea into a fully functional product that your users will love.... Read more

Skills

c
cross_eight
Cross E
Offline • 
Average response time: 6 hours

See my services

Cross-Platform Development
I will build your startup mvp mobile app for ios and android
From$200 / projectMore details
Cross-Platform Development
I will build investor ready mobile app UI inspired by tiktok instagram or whatsapp
From$120 / projectMore details

Portfolio

Work experience

CrazyLabs

Senior Flutter Developer

CrazyLabs • Freelance

Jan 2022 - Present • 4 yrs 6 mos

Lead the development of cross-platform mobile applications using Flutter for startups, small businesses, and enterprise clients. Design scalable architectures, implement responsive UI components, integrate REST APIs, Firebase services, payment gateways, push notifications, and analytics platforms. Collaborate with clients from concept to deployment while ensuring performance optimization and seamless user experiences across iOS and Android devices. Key Achievements: • Delivered 50+ mobile applications • Reduced development time through reusable Flutter components • Integrated Firebase Authentication, Firestore, Cloud Functions, and Push Notifications • Published multiple applications to Apple App Store and Google Play Store • Built MVPs that successfully launched into production

Jan_Phillip Vollmer

React Native Mobile Developer

Jan Phillip Vollmer • Freelance

Aug 2019 - Jul 2021 • 1 yr 11 mos

Developed and maintained cross-platform mobile applications using React Native for clients across e-commerce, healthcare, social networking, fintech, and productivity sectors. Worked closely with designers and backend engineers to create intuitive mobile experiences and ensure smooth application performance. Key Achievements: • Built and launched multiple client applications • Integrated third-party APIs and cloud services • Implemented secure authentication and payment systems • Improved application performance and reduced crash rates • Delivered projects on schedule for international clients