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Python Developer

Company:
talents lab
Location:
Sofia, Sofia Capital, Bulgaria
Posted:
July 26, 2025
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Description:

The Role

We're looking a Back End Python Developer to join the international team behind the development of a crypto exchange platform. You'll be responsible for building and maintaining scalable, secure APIs and services that power the core of the platform. You'll integrate smart contracts, manage wallet interactions, and ensure seamless backend performance across blockchain and database systems.

What You'll Do

Design, build, and maintain scalable backend services using Python

Develop and integrate APIs that interact with blockchain networks and smart contracts using tools like Web3.js or Ethers.js

Connect and manage wallet integrations to enable seamless user authentication and transaction flows

Collaborate with the front-end team to define and support end-to-end user experiences

Manage and optimize relational and non-relational databases

Ensure application security, reliability, and performance by applying backend best practices and blockchain-specific safeguards

Monitor and support blockchain infrastructure (nodes, RPC endpoints) where applicable

Stay up-to-date with emerging Web3 trends, especially DeFi protocols, NFT standards, and Ethereum ecosystem updates

What You Bring to the Table

Strong experience with Python and FastAPI

Solid knowledge of SQLAlchemy, PostgreSQL, and MongoDB

Proficient with Redis for caching and data handling

Understanding of backend architecture, API development, and database optimization

Experience with DevOps tools and practices e.g. Docker, CI/CD, cloud infra, etc. will be a great advantange

Nice to have familiarity with blockchain, smart contracts, or Web3 tools

What You'll Get

A salary of $3500-$5000 / month

Fully remote work (contract)

Hiring Process

Quick call with the recruiter

Interview with the CEO

Interview with the team

We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We encourage applicants of all backgrounds to apply and look forward to welcoming those who will contribute to our diverse and inclusive culture.

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