ETL Developer - Data Warehouse

Location: Bucharest, Sector 1 (Hybrid)

Availability: Immediate / ASAP

Rate: 30 – 35 EUR/h

About the Company

We are a fast-growing global technology community of 1,000+ engineers operating across 10+ countries. We collaborate with established European enterprises and innovative U.S. startups to deliver high-quality software solutions. Our culture is built on transparency, respect, continuous growth, and flexibility.

Key Responsibilities

ETL Workflow Management: Develop and maintain ETL workflows using IBM InfoSphere DataStage (v11.5.0.1) and Oracle 19C, adhering to established standards and frameworks.
Data Architecture: Analyze source systems, data structures, and data flows while working with Logical and Physical Data Models.
Testing & Quality: Implement and execute unit tests to ensure data accuracy and integrity, conduct peer code reviews, participate in System Integration Testing (SIT), and support User Acceptance Testing (UAT).
Optimization & Deployment: Optimize ETL jobs for performance and scalability; support deployment activities including code, mappings, and metadata changes.
Stakeholder Alignment: Collaborate closely with stakeholders to ensure alignment with business requirements.

Required Skills & Experience

Education & Background: University degree in IT, Engineering, or a related field.
ETL Expertise: 5–10 years of experience in Data Warehouse and ETL development, with a strong understanding of Data Warehouse concepts and architectures.
Tooling: Hands-on experience with ETL tools such as DataStage, Informatica, SSIS, Ab Initio, dbt, or similar platforms.
Databases & Programming: Solid knowledge of Oracle Databases and PL/SQL, alongside good programming skills in Python.
Large-Scale Systems: Experience working with large-scale data warehouse solutions (familiarity with BigQuery and Cloud Storage is a plus).
DevOps & QA: Knowledge of CI/CD pipelines for data integration/testing, test automation, data validation techniques (including anomaly detection), and change management/defect tracking tools.
Methodology: Strong understanding of Agile (Scrum) frameworks.

Soft Skills & Competencies

Strong analytical and problem-solving skills with high attention to detail.
Excellent communication and stakeholder management abilities.
Proactive, solution-oriented mindset with strong ownership and accountability.
Effective team player who enjoys collaboration, mentoring, and knowledge sharing.
Adaptable and flexible, capable of managing multiple priorities in dynamic environments.

ETL Developer - Data Warehouse - hybrid - Bucharest - Mara