Back to jobs

Senior Data Engineer

Sigma Software · Remote, Warsaw, Masovian Voivodeship, pl

Spotted 2d agoMid-Senior LevelFull-time

Job details

Work mode
Remote
Employment
Full-time
Level
Senior
Experience
5+ years
Posted
Nov 2, 2026
Last confirmed open
Nov 4, 2026

What you'll need to apply

What this employer's standard application typically asks

NameEmailPhoneResume
Job description

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

Interested in this role?Continue on Sigma Software's careers page.
Apply on Sigma Software