Senior Data Engineer - Cybersecurity Platform (Remote)

Sigma Software; Warszawa; Hybrid; PLN 260,000 - 420,000; Full time

Job summary

Sigma Software in Warszawa is seeking a Senior Data Engineer for a cybersecurity platform. You will own and evolve scalable data pipelines, optimize data processing, and contribute to protecting applications from automated attacks.

You will collaborate with international teams, influence architecture decisions, and drive modernization across the data platform while working in a remote-friendly EU/Ukraine timezone.

Qualifications

• 5+ years of commercial experience in Data Engineering.
• Expert-level SQL skills with hands-on experience optimizing complex queries for performance and scalability.
• Strong practical experience with DBT for data transformation and modeling.
• Solid understanding of database concepts, including DDL, DML, and advanced SQL.
• Hands-on experience with Snowflake.
• Experience working with Elastic stack technologies.
• Proven experience designing, building, and maintaining large-scale data pipelines.
• Strong analytical and problem-solving skills.
• Ability to work independently in a high-autonomy environment.
• Experience driving technical initiatives from idea to implementation.
• Strong communication and collaboration skills.

Responsibilities

• Maintain and enhance existing data processes with a focus on reliability, scalability, and performance optimization.
• Analyze and fully understand existing data models, tables, workflows, and processing jobs.
• Identify technical gaps, bottlenecks, inefficiencies, and opportunities for system improvements.
• Design, optimize, and support large-scale data pipelines and transformation processes.
• Drive modernization initiatives across the data platform and implement architectural improvements.
• Optimize complex SQL queries and improve data processing latency.
• Collaborate with product engineering teams to align on technical solutions and implementation strategies.
• Contribute to both short-term delivery goals and long-term platform evolution.
• Ensure adherence to best practices in data engineering, performance optimization, and system reliability.

Skills

SQL expertise

Analytical problem-solving

Independent work

Communication & collaboration

Ownership

Tools

DBT

Snowflake

Elastic Stack

Airflow

Job description

Sigma Software in Warszawa is seeking a Senior Data Engineer for a cybersecurity platform. You will own and evolve scalable data pipelines, optimize data processing, and contribute to protecting applications from automated attacks.

You will collaborate with international teams, influence architecture decisions, and drive modernization across the data platform while working in a remote-friendly EU/Ukraine timezone.