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The Role
We're looking a Back End 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
We're looking a Back End 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 Web3 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
- 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
- A salary of $2000-$3000 / month
- Fully remote work
- Quick call with the recruiter
- Interview with the CEO
- Interview with the team
Key Skills
Ranked by relevance
blockchain
postgresql
python
docker
devops
redis
cloud
cicd
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- Posted
- Jul 08, 2025
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Bucharest
- Company
- talents lab
Industries
Business Consulting
Services
Categories
Engineering
Information Technology
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3 roles aligned with this opportunity
View Job Details
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Python Developer
2025-10-02
Full-time
Mid-Senior
Poland
Business Consulting
Engineering
View Job Details
Related
Python Developer
2025-07-11
Full-time
Mid-Senior
Latvia
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Engineering
View Job Details
Related
Backend Developer with Python (Europe based)
2025-05-30
Full-time
Mid-Senior
Romania
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Engineering