I will build database migration data sync multiplayer backends and b2b portals


About this gig
Are database issues, disconnected applications, or complex business workflows slowing your growth? I can help you build reliable backend solutions tailored to your business needs.
I specialize in database migration, data synchronization, multiplayer game backends, API integration, and B2B ordering portals. My goal is to help you improve data consistency, connect systems, streamline ordering, and build scalable software.
️ Tools & Technologies:
PostgreSQL, MySQL, MongoDB, Supabase, Firebase, Redis, Prisma, Drizzle ORM, Node.js, Express.js, NestJS, Python, Django, FastAPI, JavaScript, TypeScript, REST API, GraphQL, WebSockets, Socket.IO, Docker, Git, GitHub, AWS, Vercel, Next.js, React, Stripe, PostgreSQL replication, and SQL.
What you can expect:
- Solutions tailored to your requirements
- Clear communication and agreed project scope
- Careful implementation and testing
- Secure data handling and maintainable code
- Support based on the agreed deliverables
Whether you need to migrate a database, synchronize data across platforms, develop multiplayer backend functionality, or build a B2B ordering portal, let's discuss your goals and find the right solution.
Contact me before you order
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Get to know peter
Backend Developer Database and API Integration
- FromNigeria
- Member sinceOct 2026
Languages
German, English, Spanish
FAQ
What backend development services do you offer?
I offer database migration, data synchronization, API integration, multiplayer game backend development, and custom B2B ordering portals tailored to your project requirements.
Can you migrate my database without losing important data?
I follow a planned migration process that includes backups, data validation, and testing where applicable. Please share your database types and migration requirements before ordering.
Can you synchronize data between different applications?
Yes, I can develop integrations to synchronize data between supported databases, APIs, and applications based on your workflow and synchronization requirements.
Can you build a multiplayer game backend?
Yes, I can help develop suitable backend components, including APIs, player data management, server-side logic, and real-time communication, depending on your game requirements.
Can you build a custom B2B ordering portal?
Yes, I can develop a portal with features such as customer accounts, product catalogs, bulk ordering, custom pricing, and order management according to the agreed scope.
Which programming languages and databases do you support?
My listed technologies include JavaScript, TypeScript, Python, Node.js, SQL, PostgreSQL, MySQL, and MongoDB. Support depends on your project's technical requirements.
Can you integrate third-party APIs into my existing system?
Yes, I can help connect supported third-party APIs to your application, map data fields, handle responses, and test the integration.
Will my backend solution be secure and scalable?
I consider authentication, access controls, data validation, error handling, and scalability during implementation, based on the project's requirements and agreed scope.
What do you need before starting my project?
Please provide your project goals, existing system details, preferred technologies, required features, and any relevant API documentation or database schema. Never send passwords or secret keys in plain text.
Can you work on a custom project outside your packages?
Yes, contact me with your requirements. I'll review the scope, technical feasibility, estimated timeline, and budget before recommending a suitable custom offer.
