Python Developer – Crypto

About the role

CFI Financial Group is seeking a passionate Python developer to join its fast‑moving online trading and cryptocurrency team. You will help design and build secure, high‑performance backend services that power crypto trading, custody, settlement and risk management.

Key responsibilities

• Collaborate with developers, product owners and stakeholders to design and implement backend features for trading and crypto products.
• Translate business requirements into scalable, secure, and efficient technical solutions.
• Define and document technical specifications, selecting appropriate technologies and workflows.
• Write and maintain unit and integration tests to ensure reliable software delivery.
• Participate in code reviews, identify anti‑patterns, and drive continuous refactoring and optimization.
• Design and implement secure integrations with blockchain networks, crypto exchanges and digital wallets.
• Contribute to backend systems that handle cryptocurrency trading, custody, settlement and risk management.
• Ensure software meets performance, security, scalability and maintainability standards.
• Present technical designs and implementations to team leads, department heads or the CTO.

Required profile

• Strong hands‑on experience with Python and backend frameworks such as FastAPI, Flask or Django.
• Solid understanding of relational databases and SQL, including design and optimization.
• Experience working on cryptocurrency or blockchain‑related projects, with knowledge of crypto protocols, wallets, transactions and exchanges.

Required skills

• Python
• FastAPI, Flask, Django
• SQL
• Web3.py, ethers.js
• Ethereum, Bitcoin
• Cloud platforms (AWS, GCP or Azure)
• Message queues (Kafka, RabbitMQ)
• Docker, Kubernetes