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Sigma Software· Spotted 5d ago

Senior Data Engineer

Location
Remote, Warsaw, Masovian Voivodeship, pl
Work mode
Remote
Employment
Full-time
Level
Senior
Experience
5+ years
Job function
Software/Internet/AI › Data & Analytics › Data Engineer

Posted Nov 2, 2026Last confirmed open Nov 7, 2026

About this role

The product is a solution to safeguard applications from automated attacks.

The engineer is expected to operate as a core member of a small, high-autonomy, proactive team focused on:

developing a deep understanding of a core products including legacy code and multiple services;

proactively finding problems, inefficiencies, risks, technical gaps and areas for improvement, implementing them;

negotiating with product engineering teams to get buy-in for changes implementation;

planning short-term wins and long-term improvement strategy.

Responsibilities

  • Maintain and enhance existing data processes, ensuring reliability, performance, and scalability;
  • Build a full understanding of existing tables, flows, and jobs - what the data is, where it's used, where it can be improved, where to build new ones;
  • Drive system reliability and performance improvements across all data workflows;
  • Own and execute data process modernization initiatives;
  • Collaborate cross-functionally to ensure architectural alignment and best-practice adoption.

Must-Have Requirements:

  • 5+ years of overall experience in Data Engineering;
  • Expert-level SQL skills: being able to optimize complex queries for latency and performance;
  • Proficiency with DBT for data transformation and modeling;
  • Strong data engineering fundamentals and database knowledge (DDL/DML/SQL);
  • Hands-on experience with Snowflake and Elastic;
  • Deep experience building, scaling, and managing large-scale data pipelines;
  • Proven ability to work independently, take ownership, and drive initiatives to completion.

Nice-to-Have: • Practical experience with Airflow for workflow orchestration.

Timezone

EU/Ukraine

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