Senior Python Engineer (Remote)

Crystal IntelligenceCapon Bridge, WV
Remote

About The Position

We are looking for a talented Senior Python Engineer to join our team responsible for transaction monitoring and exploration. This is a fully remote role, and we welcome applications from anywhere in Europe. As part of our Nexus squad, you will play a critical role in streamlining clients’ operations and smoothing their investigations on the Crystal platform.

Requirements

  • 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

Nice To Haves

  • 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

Responsibilities

  • Owning the transaction monitoring part of the Crystal platform
  • Improving stability and observability of the owned services
  • Maintaining code to high-quality standards
  • End-to-end feature design and implementation
  • Coding, debugging, testing and delivering features and improvements in a continuous manner
  • Providing code reviews, assistance and constructive feedback to other team members
  • Performance optimizations (including database queries optimizations)
  • Refactoring code as necessary

Benefits

  • AI tool of your choice: Cursor or Claude Code
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