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Senior Data Engineer

Sigma Software
  • 🇵🇱 Poland
  • Remote
  • Senior
  • 11 hours ago
  • AI
  • Machine Learning
  • PySpark
  • CI/CD
  • Microservices
  • Python
  • SQL
  • Apache Spark
  • Databricks
  • Snowflake
  • Azure
  • AWS
  • GCP
  • ETL
  • ELT
  • Apache Airflow
  • Azure Data Factory
  • IaC
  • Terraform
  • RAG
  • Unity Catalog
  • Apache
  • dbt
  • MLflow
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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.

  • 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
  • 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

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

Senior Data Engineer · Sigma Software

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