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Senior Data Platform Engineer (Remote)

Location: Remote - Europe
Type: Remote, Contract, Full-Time
Posted: Sep 4, 2025
Views: 1
Data Engineering Data Lake Engineer Kafka Python Spark

Position Summary:

We are looking for a talented Senior Data Platform Engineer to join our Blockchain team, to participate in the development of the data collection and processing framework to integrate new chains. This is a remote role and we are flexible with considering applications from anywhere in Europe.

More details: crystalblockchain.com

Duties and responsibilities:

  • Integration of blockchains, Automated Market Maker (AMM) protocols, and bridges within Crystal's platform;
  • Active participation in development and maintenance of our data pipelines and backend services;
  • Integrate new technologies into our processes and tools;
  • End-to-end feature designing and implementation;
  • Code, debug, test and deliver features and improvements in a continuous manner;
  • Provide code review, assistance and feedback for other team members.

Required:

  • 8+ years of experience developing Python backend services and APIs;
  • Advanced knowledge of SQL - ability to write, understand and debug complex queries;
  • Data Warehousing and database basic architecture principles;
  • POSIX/Unix/Linux ecosystem knowledge;
  • Strong knowledge and experience with Python, and API frameworks such as Flask or FastAPI;
  • Knowledge about blockchain technologies or willingness to learn;
  • Experience with PostgreSQL database system;
  • Knowledge of Unit Testing principles;
  • Experience with Docker containers and proven ability to migrate existing services;
  • Independent and autonomous way of working;
  • Team-oriented work and good communication skills are an asset.

Would be a plus:

  • Practical experience in big data and frameworks – Kafka, Spark, Flink, Data Lakes and Analytical Databases such as ClickHouse;
  • Knowledge of Kubernetes and Infrastructure as Code – Terraform and Ansible;
  • Passion for Bitcoin and Blockchain technologies;
  • Experience with distributed systems;
  • Experience with opensource solutions;
  • Experience with Java or willingness to learn.

About the Company

Name: Crystal Intelligence
Location: Herengracht 168, Amsterdam, Netherlands

Crystal Intelligence, operating under Crystal Blockchain B.V., is a company specializing in cryptocurrency compliance and investigation software. It provides monitoring and compliance solutions to help navigate the crypto landscape, supporting global agencies in civil and criminal investigations related to digital assets. The company offers a suite of intelligence products including supplier intelligence, sales intelligence, and crypto forensics, aimed at enhancing transparency and security in cryptocurrency transactions. Crystal Intelligence is led by experienced executives with backgrounds in banking, software engineering, and crypto forensics, driving its growth in the dynamic crypto compliance industry.