Senior Data Architect IT

Wymagania: - 7+ years of experience in data architecture, data engineering, or related technical roles - 5+ years designing and implementing cloud-based data architectures (AWS, GCP, or Azure) - 5+ years writing complex SQL queries across RDBMSes - 5+ years developing and deploying ETL/ELT pipelines using Airflow, Prefect, or similar tools - Strong experience with DBT for data transformation, testing, and documentation - Experience with data warehouse design: OLTP, OLAP, star schemas, snowflake schemas, dimensions, and facts - Experience with data modeling tools and methodologies (conceptual, logical, physical models) - Hands-on experience with cloud-based data warehouses such as Redshift, Snowflake, or BigQuery - Experience implementing data validation frameworks, quality control processes, and automated testing for data pipelines - Familiarity with how data architectures serve AI/ML workloads, including feature stores and vector-based retrieval patterns - Strong understanding of data governance, data quality frameworks, and metadata management - Bachelor's degree in Computer Science or equivalent — preferred Mile widziane: - Python / Pandas / PySpark · Docker · Kubernetes · CI/CD Automation · AWS Lambdas / Step Functions · Data Partitioning · Databricks · Vector Databases (Pinecone, Weaviate, pgvector) · Data Mesh / Data Fabric · Graph Databases / Knowledge Graph Design · Cloud Certifications O firmie: - Optiveum is a recruitment and consulting company created based on our 20-plus years of experience in HR & IT services. - We work for Clients located in Poland and abroad providing our local and international Candidates with Project-based or Permanent job opportunities in a remote or office-based model. Zakres obowiązków: - Design, develop, and maintain enterprise data architecture strategies, standards, and blueprints supporting operational, analytical, and AI/ML workloads - Architect cloud-native data solutions on AWS (Redshift, RDS, Glue, Lake Formation) or equivalent platforms, ensuring scalability, security, and cost efficiency - Define and enforce data modeling standards: dimensional modeling, denormalized schemas, OLTP/OLAP design patterns, and AI-friendly ontologies - Architect and oversee data transformation layers using DBT, delivering modular, tested, and well-documented models across the analytics stack - Lead design of data integration and orchestration patterns with Prefect and Airflow — batch ETL, real-time streaming, event-driven, and API-based data exchange - Define and implement data validation, quality control, and automated testing frameworks across pipelines and warehouses - Establish data quality SLAs, monitoring, and alerting standards; design automated reconciliation processes to catch issues before downstream impact - Build and maintain data governance frameworks: data quality, lineage, cataloging, classification, and access control - Collaborate with Data Engineers, Software Engineers, Product, and Analytics teams to translate business requirements into scalable designs - Evaluate and recommend data technologies and tools; own technical decision-making for data infrastructure within assigned domains - Design data partitioning, indexing, and optimization strategies for high-performance queries and big data workloads - Ensure architectures support AI/ML consumption — feature stores, embedding pipelines, and model training datasets - Perform architecture and code reviews to uphold data standards, optimal execution patterns, and long-term maintainability - Mentor data engineers on best practices in modeling, architecture patterns, and cloud data design - Assist with CI/CD processes and automated release management for data infrastructure deployments Oferujemy: - B2B contract with monthly compensation up to $8,000 - Strategic, high-ownership role in a fast-growing global fintech - Direct influence over data infrastructure decisions and team direction - Mentorship opportunities and clear career progression - Collaborative, open, and ambitious team culture - Hybrid model — minimum 3 days/week in the Warsaw office