Our agency will be your back end developer using node js


Vetted Pro
Top Rated
Agency
Vetted by Fiverr Pro
Rexsoft Inc was selected by the Fiverr Pro team for their expertise.
About this gig
Need a reliable back-end developer to power your web app or mobile app?
We specialize in building scalable, secure, and high-performance backends using Node.js, Express.js, and JavaScript with seamless integrations for AWS, databases, and third-party services. From APIs to microservices, we ensure your application runs smoothly and scales with your business.
Why Work With Us:
- Expert in Node.js, Express.js, JavaScript
- Database management with PostgreSQL, MySQL, MongoDB
- Cloud-ready solutions with AWS and Docker
- Scalable architecture and microservices design
- Secure, optimized, and maintainable code
What's Included:
- Custom backend development for web & mobile apps
- REST API design & integration
- Database setup and management
- Authentication & security (JWT, OAuth)
- Microservices & containerization with Docker
- Post-launch support and maintenance
From planning to deployment, our experienced team ensures reliability, security, and scalability at every stage. We've successfully delivered 150+ projects worldwide let's build yours next.
Message us today to start your project with a trusted backend developer.
About this agency

Vetted Pro
Agency
50 employees
Top Rated
Rexsoft Inc is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
App Design
Mobile App Development
Mobile App Maintenance
Software Development
Vibe Coding
- FromUnited States
- Member sinceJan 2023
- Avg. response time3 hours
- Last delivery3 days
Languages
English, Ukrainian
Portfolio
Other Software Development Services we Offer
FAQ
What other services does Rexsoft offer besides backend development?
Alongside backend development, Rexsoft also offers front-end development (React, Next.js), full-stack web app development, and ongoing technical support 0 so we can cover your entire project end-to-end.
What technologies do you use for backend development?
Yes, we build APIs and backend logic that power both web applications and mobile apps (iOS/Android), with the same reliability and security standards.
Can you integrate APIs and third-party services?
Absolutely - we handle REST API design, third-party integrations (payment gateways, CRMs, external services), and custom API development from scratch.
Do you handle database design and management?
Yes, we design schemas, set up databases, and optimize queries for PostgreSQL, MySQL, or MongoDB depending on your project needs.
Do you provide secure authentication and user management?
Yes, we implement JWT, OAuth, and role-based access control to keep user data and sessions secure.
Can you join existing projects or improve current backends?
Yes, we regularly join ongoing projects to fix bugs, refactor code, add new features, or improve performance and scalability.
Do you support cloud deployments?
Yes, we deploy and configure backends on AWS, using Docker for containerization when needed.
Do you provide post-launch support and maintenance?
Yes, we offer ongoing support packages for bug fixes, updates, and scaling as your app grows.
