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Senior Data Engineer
Posted by Sigma Software on 9 October 2026. Still on their SmartRecruiters board when we checked 55 min ago. Half of Sigma Software's roles come down within 28 days.
Read out of the posting
LevelNot stated
Experience askedNot stated
EmploymentNot stated
LocationWarsaw, Masovian Voivodeship, Poland
RemoteYes
Visa sponsorshipNot stated
SalaryNot published, and most postings do not
Posted2026-10-09
Found viasmartrecruiters, direct from their system
We had it within the hour it went up.
The posting, as the company wrote it
Employment: Full-time
Experience level: Mid-Senior Level
Job Description
Design and build scalable cloud-native data platforms from greenfield to production
Design and implement near-real-time ingestion pipelines using event-driven patterns
Define and enforce data platform standards including Data Lake and Lakehouse principles, medallion architecture, and data contracts
Refactor, optimize, and modernize Spark and PySpark scripts for performance and maintainability
Introduce best practices for code quality, testing, and CI/CD across data pipelines
Drive adoption of AI tooling and agentic workflows within the Data Engineering team
Ensure data quality, observability, scalability, and reliability across all platforms and pipelines
Design and deliver self-service tooling and microservices that simplify platform usage
Collaborate with cross-functional stakeholders including Product, Machine Learning, and Data Science teams
Contribute to architecture decisions and technical R&D initiatives
Qualifications
5+ years of professional experience in Data Engineering
Strong Python and SQL development skills
Hands-on experience with Apache Spark and PySpark including query optimization and performance tuning
Experience working with Databricks or Snowflake
Practical experience with at least one major cloud provider such as Azure, AWS, or GCP
Experience with stream processing technologies including Kafka or Spark Structured Streaming
Strong understanding of ETL/ELT patterns, data modelling, and data warehousing concepts
Experience with orchestration tools such as Apache Airflow or Azure Data Factory
Knowledge of Infrastructure as Code tools including Terraform
Understanding of production-grade systems including observability, scalability, reliability, and performance
Ability to independently lead technical initiatives from concept to delivery
Strong communication and collaboration skills
Upper-Intermediate or higher English level
WILL BE A PLUS
Familiarity with RAG pipeline design and LLM integration patterns
Knowledge of data governance frameworks and tools such as Unity Catalog or Apache Atlas
Experience with dbt for data transformation and modelling
Familiarity with MLflow, Feature Stores, or ML platform integrations
Additional Information
PERSONAL PROFILE
Proactive and self-driven mindset
Strong analytical and architectural thinking
Ability to work independently and take ownership of technical decisions
Passion for innovation and modern engineering practices
Knowledge-sharing and team-oriented approach
Strong problem-solving skills
Company Description
We are looking for a Senior Data Engineer to join our Data Engineering Team and take ownership of high-impact, greenfield data initiatives. You will work on building modern cloud-native data platforms, migrating on-premises legacy systems to the cloud, and laying the architectural foundation for AI-ready data infrastructure. 
In this role, you will collaborate closely with Machine Learning, Data Science, and Product teams, serving as a key technical contributor and thought leader. You will also drive R&D efforts around agentic AI architectures, event-driven systems, and LLM-ready data pipelines – turning architectural concepts into production-grade solutions.
Also open at Sigma Software
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