I will develop responsive custom full stack web application


About this gig
Do you need an experienced developer to build a reliable, maintainable web application?
I am a full-stack software engineer with six years of professional experience developing secure, scalable applications. I can build a new web application, create a full-stack feature, integrate an API, connect a database, implement authentication, fix bugs, or improve an existing codebase.
My core technologies include Java, Spring, React, TypeScript, JavaScript, REST APIs, SQL, AWS, and Docker.
Depending on the package selected, I can provide:
- Responsive frontend pages
- Backend APIs and business logic
- Database design and integration
- User authentication and protected routes
- Third-party API integrations
- Content and design customization
- Testing, debugging, and performance improvements
- Clean, well-structured, documented source code
Every project is developed around your requirements rather than a generic template. I prioritize clear communication, realistic estimates, dependable delivery, and code that can be maintained and expanded over time.
Please contact me before ordering so we can confirm your requirements, package, and delivery timeline.
Get to know Zachary N
Software Engineer
- FromUnited States
- Member sinceAug 2026
- Avg. response time23 hours
Languages
English
FAQ
What do you need from me before starting?
Please provide a description of your project, required features, preferred technologies, design references, and any existing code or documentation. Contact me before ordering so I can confirm the appropriate package and delivery time.
What technologies do you work with?
My primary technologies include Java, Spring, React, TypeScript, JavaScript, REST APIs, SQL databases, AWS, and Docker. I can also review an existing project to determine whether I am a good fit for its technology stack.
What is a page within the scope of this gig?
A page is one unique application screen or route using the agreed design and existing architecture. New user roles, workflows, integrations, database entities, dashboards, or complex interactive components may require a custom offer.
What is covered by a revision?
Revisions only cover corrections and adjustments with previously agreed upon requirements so as to align with your needs. Revisions do not include new pages, features, integrations, or redesigned workflows.
Will I receive the source code?
Yes. All packages include the source code created for your order, along with helpful documentation and comments for complex logic. Third-party libraries remain subject to their respective licenses.
Can you deploy the application?
Yes. Deployment can be added as an extra service when you already have a supported hosting environment. Hosting fees, domain registration, paid services, and other third-party costs are not included.
Can you work on an existing application?
s. I can add features, integrate APIs, fix bugs, refactor code, improve performance, and modernize existing applications. I will need access to the relevant source code and setup documentation before confirming the scope.
Does every package include a complete web application?
No. The Basic and Standard packages cover smaller, clearly defined features or sections of an application. The Premium package covers a small custom application or MVP. Larger or more complex projects will require a custom offer.
Will my application work on mobile devices?
Yes. Responsive design is included so the delivered web pages work across common desktop, tablet, and mobile screen sizes. This does not include a native Android or iOS application.
