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Fiverr Pro
English
$
USD
I will build a node backend or integrate apis for your web app
Victoria
About this gig
Need a backend feature, API integration, or server-side functionality without rebuilding your whole app?
I build and extend Node.js backends using Express or Fastify, with a focus on clean integrations and practical functionality.
I can help with:
REST API development and integration
Third-party API integrations
Node.js, Express, and Fastify
PostgreSQL, MySQL, MariaDB, SQLite, and MongoDB
Authentication and OAuth
WebSockets and real-time features
AI API integrations
Webhooks and external services
Payments and backend workflows
Docker and deployment support
Existing backend improvements and debugging
The Basic package covers one clearly defined backend feature or API integration.
If your project involves multiple APIs, authentication, databases, payments, or a larger backend architecture, please message me first so I can review the scope and prepare a custom offer.
Got docs, an existing repo, or an API that should be easy to integrate? Send it over.
Get to know Victoria
Victoria
Fullstack Developer
- FromPoland
- Member sinceAug 2026
- Avg. response time1 hour
- Last delivery1 month
Languages
Russian, English, Ukrainian, Belarusian, Polish
I am a Fullstack Developer with over 6 years of commercial experience and a strong frontend focus. I have hands-on expertise in building web applications, browser extensions, Web3 platforms, and Telegram products. My technical proficiency includes Vue, React, TypeScript, and Node.js, with a proven track record of integrating external APIs and managing production deployments.
My Portfolio
FAQ
Can you work with an existing backend?
Yes. I can extend, refactor, debug, or integrate new functionality into an existing Node.js backend. Please share the repository details before ordering.
What APIs can you integrate?
I can work with REST APIs, webhooks, OAuth services, payment providers, AI APIs, translation services, maps, and other third-party integrations, depending on their documentation and access requirements.
Do I need to provide API keys or service accounts?
Yes. If the integration requires private credentials, API keys, paid accounts, or third-party access, you will need to provide them securely when required.
Can you add a database or authentication?
Yes. Database integration, authentication, OAuth, and related backend features can be added as extras or included in a custom offer for larger projects.
What if my backend project is more complex than the Basic package?
Please message me first. Multiple integrations, larger API architectures, payments, authentication, migrations, or existing complex codebases usually require a custom offer.
Will I receive the source code?
Yes. The source code for the completed work is included unless we agree otherwise before the order starts.
