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Fiverr Pro
English
$
USD
I will software development, front end backend developer, full stack developer
Lucas J
About this gig
Are you looking for a reliable developer to build, improve, or fix your web application?
I provide full stack software development for businesses, startups, and individuals. I can help with frontend development, backend development, APIs, databases, integrations, bug fixing, and complete web applications.
My development services include:
- Frontend development with React, JavaScript, TypeScript and modern UI technologies
- Backend development with Node.js, PHP and Laravel
- REST API development and third party API integrations
- Database design and integration with PostgreSQL, Supabase and other databases
- Authentication, user roles and secure application workflows
- Bug fixing, debugging and performance improvements
- Responsive web applications for desktop, tablet and mobile
- Existing application improvements and feature development
- Full stack application development from idea to deployment
I focus on clean, maintainable code, responsive interfaces, reliable functionality and clear communication throughout the project.
Every project is different, so please message me before ordering if you have a custom requirement. I'll review your project and recommend the right approach and package.
Get to know Lucas J
Lucas J
Senior App Developer
- FromUnited States
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English
I'm a Senior App Developer specializing in building modern, scalable, and high-performing mobile applications. I develop cross-platform and native apps with a focus on clean user experiences, reliable backend systems, and secure data management. I handle complete applications from concept to deployment and maintenance.
FAQ
Can you work on an existing application?
Yes. I can debug, modify, improve, or add new features to an existing frontend, backend, API, or full stack application.
Can you build a complete web application?
Yes. I can develop both the frontend and backend, connect the database and APIs, implement authentication, and help with deployment.
What technologies do you work with?
I work with technologies including JavaScript, TypeScript, React, Node.js, PHP, Laravel, PostgreSQL, Supabase, APIs and other modern development tools.
Can you fix bugs in my application?
Yes. Send me the error details and relevant project information, and I'll review the issue and determine the best approach.
Can you integrate APIs?
Yes. I can integrate REST APIs and third-party services into your application.
Can you build an MVP?
Yes. I can help develop an MVP based on your requirements, including the frontend, backend, database, authentication and required integrations.
Do you provide deployment?
Deployment assistance can be included depending on the package and project requirements.
Can you work with my existing design?
Yes. You can provide Figma designs, wireframes, screenshots, or other references, and I can implement them into a functional application.
Can I contact you before ordering?
Yes. For projects involving multiple features or an existing codebase, I recommend messaging me first so we can confirm the scope and choose the appropriate package.
What if my project doesn't fit the packages?
That's completely fine. Send me your requirements and I can provide a custom offer based on the actual project scope.
