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Fiverr Pro
English
$
USD
I will build or fix rest API with python and flask
Tomas Klaus
About this gig
Need a fast, reliable, and secure RESTful API built in Python, or need to fix bugs in your existing backend?
I am a backend developer specializing in Python, API development, and cloud databases. I will design, build, and optimize scalable REST APIs tailored to your application, web service, or mobile app.
What I can do for you:
Develop clean RESTful APIs using Python (Flask or FastAPI).
Database integration & modeling: PostgreSQL, MySQL, SQLite, or Amazon DynamoDB (NoSQL).
AWS cloud integration using Boto3 SDK (DynamoDB, S3, cloud storage).
Implement secure authentication: JWT tokens, API keys, and password hashing (bcrypt).
Input validation, structured error handling, and business logic.
Docker containerization with Dockerfile and docker-compose.yml.
Comprehensive Postman collections for easy endpoint testing.
Why choose me?
Clean, modular architecture adhering to Python best practices (PEP 8).
Thoroughly tested endpoints with robust error handling.
Transparent communication and clear setup documentation.
Please message me with your project details before placing an order so we can choose the best package for your needs!
Get to know Tomas Klaus
Tomas Klaus
Backend Developer specializing in Java, Python, and Docker
- FromArgentina
- Member sinceNov 2025
Languages
English, Spanish, Italian, Portuguese
Hi! I am Tomas, a backend developer specializing in scalable, secure server-side applications.
I build robust REST APIs, cloud integrations, and Docker environments for startups and businesses.
Tech stack:
- Java (Spring Boot), Python (Flask), TypeScript
- PostgreSQL, MySQL, Amazon DynamoDB (AWS)
- Docker, Docker Compose, JWT authentication, Postman
I focus on clean architecture, reliable performance, and clear communication. Contact me to discuss your project!
My Portfolio
FAQ
Do you provide a Postman collection for testing the API?
Yes, every delivered project includes an exported Postman collection with pre-configured requests and examples so you can test all endpoints immediately.
Can you connect my API to SQL and NoSQL databases?
Yes! I have extensive experience with relational databases (PostgreSQL, MySQL, SQLite) as well as NoSQL cloud stores like Amazon DynamoDB.
Can you deliver the project ready to run with Docker?
Absolutely. In the Standard and Premium packages, I include a Dockerfile and docker-compose.yml so you can launch your API and database with a single command.
