API DevelopmentVasiliy Kuzmenko
Develop robust, well-documented APIs using FastAPI, fully aligned with the OpenAPI 3.x specification. My solutions are designed for scalability and security, with optional integrations for databases (like PostgreSQL) and third-party services. What sets me apart is a focus on clean architecture, automated testing, and seamless frontend/backend collaboration through auto-generated API clients.
What's included
FastAPI-Based API
A fully functional API built with FastAPI, following OpenAPI 3.x specification for clear structure, validation, and automatic documentation.
Modular & Secure Architecture
API designed to integrate with internal and third-party services (e.g. authentication, logging, payments), with security best practices in place (rate limiting, input validation, CORS, etc.).
OpenAPI Documentation
Auto-generated, interactive Swagger UI and ReDoc documentation for easy testing and integration by frontend developers or third-party consumers.
Testing Suite
Unit and integration tests covering key API endpoints and logic to ensure reliability and stability.
Deployment-Ready Build
Dockerized setup or environment configuration included, ready for deployment to staging/production environments.
PostgreSQL Integration (Optional)
Database models and schema can be integrated with PostgreSQL, including support for migrations and data consistency.
CI/CD Integration (Optional)
Automated workflows for testing, linting, and deploying the API using GitHub Actions, GitLab CI.
FAQs
I use FastAPI, a modern and high-performance Python framework that follows OpenAPI 3.x standards, making it ideal for building scalable and well-documented APIs.
Yes. Every API comes with auto-generated interactive documentation via Swagger UI and ReDoc, allowing developers to easily explore and test endpoints.
Absolutely. I integrate APIs with PostgreSQL, including full database modeling, schema migrations, and efficient query handling.
Yes. I implement modern security best practices such as OAuth2, API keys, CORS policies, and rate limiting based on your project needs.
Definitely. I include unit and integration tests to ensure that endpoints are reliable, secure, and easy to maintain over time.
The API is delivered as a Dockerized project, ready to deploy. Optionally, I can set up CI/CD pipelines for automatic testing and deployment.
Yes. I can build integrations with third-party APIs, authentication providers, payment gateways, or any other external services your application requires.
Vasiliy's other services
Starting at$50 /hr
Tags
FastAPI
Postman
Python
Backend Engineer
Fullstack Engineer
Software Architect
Service provided by
Vasiliy Kuzmenko proAmsterdam, Netherlands
API DevelopmentVasiliy Kuzmenko
Starting at$50 /hr
Tags
FastAPI
Postman
Python
Backend Engineer
Fullstack Engineer
Software Architect
Develop robust, well-documented APIs using FastAPI, fully aligned with the OpenAPI 3.x specification. My solutions are designed for scalability and security, with optional integrations for databases (like PostgreSQL) and third-party services. What sets me apart is a focus on clean architecture, automated testing, and seamless frontend/backend collaboration through auto-generated API clients.
What's included
FastAPI-Based API
A fully functional API built with FastAPI, following OpenAPI 3.x specification for clear structure, validation, and automatic documentation.
Modular & Secure Architecture
API designed to integrate with internal and third-party services (e.g. authentication, logging, payments), with security best practices in place (rate limiting, input validation, CORS, etc.).
OpenAPI Documentation
Auto-generated, interactive Swagger UI and ReDoc documentation for easy testing and integration by frontend developers or third-party consumers.
Testing Suite
Unit and integration tests covering key API endpoints and logic to ensure reliability and stability.
Deployment-Ready Build
Dockerized setup or environment configuration included, ready for deployment to staging/production environments.
PostgreSQL Integration (Optional)
Database models and schema can be integrated with PostgreSQL, including support for migrations and data consistency.
CI/CD Integration (Optional)
Automated workflows for testing, linting, and deploying the API using GitHub Actions, GitLab CI.
FAQs
I use FastAPI, a modern and high-performance Python framework that follows OpenAPI 3.x standards, making it ideal for building scalable and well-documented APIs.
Yes. Every API comes with auto-generated interactive documentation via Swagger UI and ReDoc, allowing developers to easily explore and test endpoints.
Absolutely. I integrate APIs with PostgreSQL, including full database modeling, schema migrations, and efficient query handling.
Yes. I implement modern security best practices such as OAuth2, API keys, CORS policies, and rate limiting based on your project needs.
Definitely. I include unit and integration tests to ensure that endpoints are reliable, secure, and easy to maintain over time.
The API is delivered as a Dockerized project, ready to deploy. Optionally, I can set up CI/CD pipelines for automatic testing and deployment.
Yes. I can build integrations with third-party APIs, authentication providers, payment gateways, or any other external services your application requires.
Vasiliy's other services
$50 /hr