Senior Data Engineer
Krakow, Kraków +4 Locations
Mozaiq
Senior Data EngineerWe’re hiring a Senior Data Engineer to take on the challenge of unifying fragmented, messy datasets into a centralized, real-time database of all active independent healthcare practices and billing companies. Your work will power advanced AI workflows and high-scale data operations that sit at the heart of mission-critical marketing initiatives for a major U.S. software company.
🧠 Core Responsibilities
Data Ingestion & Infrastructure
Design and build a net-new data warehouse using Snowflake or similar tool.
Maintain scalable data pipelines to ingest large-scale datasets via web scraping and APIs.
Implement deduplication, field validation, and change tracking to ensure data quality and longitudinal analytics.
Integrations & Data Syncing
Build and support data integrations with third party tools.
Enable near real-time updates to systems using event-based syncs and monitoring dashboards.
Contribute to the execution of re-enrichment loops, field mapping QA, and sync monitoring.
Operational Automation & Monitoring
Help automate re-enrichment triggers, suppression logic, and SLA alerts for stale data.
Build visibility through dashboards and Slack alerts for sync issues, gaps, or data freshness concerns.
✅ You Might Be a Fit If You Have
Strong experience with Snowflake (or similar), ETL/ELT pipelines, and data warehousing.
Experience scraping unstructured web data at scale using tools like Apify, SerpAPI, or Puppeteer or similar.
A product-oriented mindset—you care about schema design, data governance, and maintainability and can act like an owner.
Familiarity with event-driven data flows, API integrations, and modern AI platforms.
💼 Nice To Have But Not Mandatory
Exposure to Marketing, RevOps, or Sales teams, or interest in building tools that support them, and modern AI marketing platforms (e.g., Salesforce, Outreach, Clay) is a plus but not required.
Interest in AI/NLP applications and how they interact with broader systems.
🌍 About Mozaiq
Mozaiq is a fully remote team with roots in the US and Eastern Europe. We build powerful, cross-functional teams that support some of the most sophisticated tech and marketing organizations in the world.
🌐 Global Family: A tight-knit, multicultural, remote-first team
💼 Meaningful Work: Support world-class brands and products
🤝 Inclusive Culture: We prioritize collaboration, clarity, and growth
✨ Contractor Benefits
Flexible hours (with limited CET–US overlap)
Competitive hourly pay
Exposure to global clients and leading tech brands
100% remote work