BI Developer (Backend)
- PLACE OF WORK
- 4024 Debrecen, Barna utca 23
- AREA OF EMPLOYMENT
- IT
- START OF WORK
- as soon as possible
- EMPLOYMENT TYPE
- Full-time
My responsibilities:
The BI Developer (Backend) at ALDI designs, builds, and maintains robust, scalable data pipelines and backend analytics components that transform raw data into trusted, well-modelled, and high-quality datasets. Enables downstream reporting, dashboards, and analytical use cases by partnering with product teams, data owners, and stakeholders to ensure accurate, performant, and well-documented data products.
Key responsibilities:
- Build and maintain data pipelines (batch/near-real-time) to support reporting and analytics
- Develop and optimise ETL (Extract Transform Load) jobs and data transformations
- Model data for analytics (e.g., dimensional/relational models) and support consistent metrics definitions
- Develop and maintain reporting assets (dashboards, scheduled reports, KPI definitions)
- Write production-quality SQL and implement performance improvements (query tuning, indexing/partitioning strategies where applicable)
- Ensure data quality through validation checks, anomaly detection (as applicable), and reconciliations
- Provide monitoring, alerting, and troubleshooting for pipeline/report failures
- Document datasets, transformations, metric logic, data lineage, and known limitations
- Support governance needs: permissions, dataset certification workflows (if applicable), and auditability
The knowledge I own:
- Strong SQL (joins/aggregations/window functions, data integrity and performance awareness)
- Experience building data pipelines using ETL patterns (or equivalent orchestration)
- Proficiency with Python or R
- Familiarity with cloud based data solutions (Databricks, Snowflake, etc.)
- Hands-on experience with CI/CD concepts and automated deployment workflows
- Understanding of data quality principles and how to implement validation (row counts, referential integrity, range checks, reconciliation)
- Production engineering mindset: monitoring, incident response, and maintainable code/process
- Analytical and structured approach to work
- Passion for delivering high-quality user experiences
- Ability to work independently while being a strong team player
- Fluent in English (written and spoken)
- Understanding of Agile practices and iterative development processes is a plus
- Basic statistical thinking for validating results (e.g., distribution checks, sanity checks, trend validation) is advantageous
The offer that would convince me:
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Possibility to improve yourself in a constantly growing organization
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An above-average salary
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Intensive individual and practical training varied and interesting tasks
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Pleasant working environments
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A secure, long-term employment opportunity
Online application:
Please use our online application and attach your English resume.