Senior Python Engineer (Remote)
Remote
Job Summary
Own the transaction monitoring component of the Crystal platform, improving stability, observability, and database query performance while maintaining high-quality code standards. Deliver end-to-end feature design and implementation through continuous coding, debugging, and testing, providing code reviews and constructive feedback to team members. Refactor code as necessary to support scalability and optimize systems operating on large data volumes. Join the Nexus squad to streamline client operations and investigations. This role requires 8+ years of Python backend experience with SQL/NoSQL databases, distributed systems, and client-facing solutions, supported by tools like Cursor or Claude Code.
Required Qualifications
- 8+ years of commercial experience developing Python backend services and APIs for the web
- Solid software architecture skills
- Strong knowledge of SQL/NoSQL databases and data architecture, including PostgreSQL
- Knowledge of testing principles at different levels of the system
- Experience in developing client-facing solutions
- Experience with distributed systems
- Product-oriented mindset
- Proficiency in English
Desired Qualifications
- Experience with scalability and performance optimizations of large distributed systems
- Experience with systems operating on large data volumes
- Experience with the Flask framework
- Passion for cryptocurrencies and blockchain technologies
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