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Crystal Intelligence

Senior Data Platform Engineer

Crystal Intelligence
Poland · Full-time · Mid-Senior

Position Summary:


We are looking for a talented Senior Data Platform Engineer to join our Data squad, 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:

  • 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 in similar roles;
  • 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;
  • Practical experience in big data and frameworks (e.g., Kafka, Spark, Flink, Data Lakes and Analytical Databases such as ClickHouse);
  • 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:

  • Knowledge of Kubernetes and Infrastructure as Code – Terraform and Ansible;
  • Experience with distributed systems;
  • Experience with opensource solutions;
  • Experience with Java or willingness to learn.

Key Skills

Ranked by relevance

infrastructure as code kubernetes blockchain postgresql terraform big data docker kafka spark java sql
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Posted
Jan 22, 2026
Type
Full-time
Level
Mid-Senior
Location
Poland

Industries

Software Development

Categories

Information Technology

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