Senior Python Engineer
Crystal Intelligence provides an advanced blockchain analytics platform for crypto crime investigation, compliance, and risk management. Their AI-powered tools help clients like financial institutions, government agencies, and crypto exchanges to trace crypto movements, uncover illicit finance, and enforce compliance.
About Crystal Intelligence
Crystal Intelligence is a blockchain analytics platform that provides solutions for crypto crime investigation, compliance, and risk management. The platform offers tools for tracing wallets, visualizing transaction flows, monitoring risks, and classifying entities using AI-powered analytics. Crystal serves a variety of clients, including banks, payment providers, governments, law enforcement agencies, and digital asset/crypto exchanges. Their services help organizations flag crypto risks in real-time, accelerate KYC processes, automate compliance, trace illicit networks, and simplify regulatory adherence. The company also offers training, certification, and advisory services to help clients navigate the crypto landscape and meet regulatory standards.
Skills
About the Role
You will join the Nexus squad and play a critical role in streamlining clients' operations and smoothing their investigations on the Crystal platform. You will own the transaction monitoring part of the platform, work on improving stability and observability of the services you own, and maintain code to high-quality standards. You will design and implement features end-to-end, and code, debug, test and deliver features and improvements continuously. You will also provide code reviews, assistance and constructive feedback to your teammates, and work on performance optimizations, including database query optimizations, while refactoring code as necessary.
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
Responsibilities
- Own the transaction monitoring part of the Crystal platform
- Improve stability and observability of the owned services
- Maintain code to high-quality standards
- Design and implement features end-to-end
- Code, debug, test and deliver features and improvements continuously
- Provide code reviews, assistance and constructive feedback to team members
- Optimize performance, including database queries
- Refactor code as necessary
Benefits
- AI tool of your choice: Cursor or Claude Code
- Fully remote work