j
johnjoshua424

johndev

@johnjoshua424

Product Engineer

Germany
German, English
About me
I'm a full-stack mobile and web developer with expertise in React Native, Flutter, Firebase, Node.js, AI integrations, and business automation. I help startups and businesses build scalable mobile apps, SaaS platforms, AI agents, automation workflows, marketplaces, delivery apps, and custom business solutions. From MVP development to production-ready applications, I focus on performance, security, and user experience to deliver products that solve real business problems.... Read more

Skills

j
johnjoshua424
johndev
Offline • 
Average response time: 1 hour

See my services

Full Stack Web Applications
I will build ai music generator website, text to music app and music saas platform
From$200 / projectMore details
Full Stack Web Applications
I will build saas, mvp, ai app, and web app using lovable
From$150 / projectMore details

Work experience

Fiverr

Software Engineering

Fiverr • Freelance

Jan 2021 - Present • 5 yrs 5 mos

Full-Stack Mobile & AI Developer I specialize in building scalable mobile applications, web platforms, AI-powered solutions, and business automation systems. My expertise includes React Native, Flutter, Firebase, Node.js, REST APIs, cloud services, database design, AI integrations (OpenAI, Claude, Gemini), and workflow automation using n8n and Make.com. I help startups and businesses transform ideas into production-ready products, including SaaS platforms, marketplaces, delivery apps, AI agents, CRM systems, and custom business applications. My services cover architecture planning, frontend and backend development, API integration, authentication, payment gateways, deployment, maintenance, and performance optimization. I focus on delivering secure, scalable, and user-friendly solutions that drive business growth and provide long-term value.