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Описание вакансии
Senior Python Engineer
Company
Crystal Intelligence
Conditions
5 days agoLead Warsaw, Bucharest, Lisbon - Fully Remote Remote Full Time Backend Jobs by Crystal Intelligence
Job for Web3 Beginners Crystal Intelligence 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. Amsterdam, NL 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. View jobs by Crystal Intelligence
Skills
Api Design Aws S3 Caching Clickhouse Code Review Data Architecture Database Optimization Datadog Distributed Systems Flask Grafana Granian Kubernetes Monitoring Nosql Observability Postgresql Python Rabbitmq Redis Rust Scalability Software Architecture Sql
About the Role
You will join the Platform & Developer Experience team as part of the Build squad, playing a critical role in shaping the foundations of developer experience, scalability, and performance of the Crystal platform. You'll work on performance improvements, database query optimisation, monitoring and observability, and end-to-end feature design and implementation, while collaborating closely with the DevOps team and providing code reviews and feedback to your teammates.
Requirements
- 8+ years of commercial experience developing Python backend services and APIs for the web
- Solid software architecture skills
- Experience with distributed systems
- Strong knowledge of SQL/NoSQL databases and data architecture, including PostgreSQL
- Experience with the Flask framework
- Experience in performance optimisation (database query optimisation, caching)
- Understanding of integration processes with external services
- Product-oriented mindset
- Proficiency in English
- Experience with ClickHouse is a plus
- Experience with systems operating on large data volumes is a plus
- Experience designing AI-enabled developer environments is a plus
- Experience writing raw SQL queries is a plus
- Experience designing and leading major reworks of complex distributed systems is a plus
- Experience with Rust is a plus
- Passion for Bitcoin and blockchain technologies is a plus
Responsibilities
- Improve performance through database query optimisation and scalability enhancements
- Configure monitoring and observability and establish best practices
- Manage and develop internal libraries
- Improve development pipelines, such as code coverage tooling integration, in collaboration with the DevOps team
- 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
- Refactor code as necessary
Benefits
- AI tool of your choice: Cursor or Claude Code
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