ETL Developer, Python, PostgreSQL

DATAGROUP

. Design and implement Python components for ETL processes .

Posted 10/12/2026full-timeRemote • PolandMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Python development for ETL processes, with strong capabilities in PostgreSQL, SQL, and data modeling. Proven ability to optimize ETL pipelines, ensure data quality, and mentor junior developers while collaborating effectively with stakeholders.

Highest-signal resume keywords

Python DevelopmentPostgreSQLETL Process OptimizationData Validation and Quality ChecksSQL Queries and Stored Procedures

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Python DevelopmentPostgreSQLSQLETL ProcessesData ModelingQuery TuningData Transformation LogicStored ProceduresAutomated TestingData Anomaly Alerting

Soft Skills

Analytical SkillsSolution-Oriented MindsetIndependent Working StyleStructured Working StyleMentoring

Tools & Technologies

IBM DatastageOracleCloud PlatformsOpen-Source Platforms

Industry Keywords

Data ExtractionData TransformationData QualityIncident ResponseOperational Runbooks

Tech Stack

Tools & technologies

CloudETLOraclePostgresPythonSQL

About the role

Key responsibilities & impact

Design and implement Python components for ETL processes
Migrate ETL pipelines from IBM Datastage and Oracle to Python and PostgreSQL
Extract data from various sources, transform it according to business rules, and load it into PostgreSQL databases
Collaborate with data architects and stakeholders to understand data requirements
Model data flows and define transformation logic
Implement SQL queries, stored procedures, and functions in PostgreSQL
Optimize ETL processes for performance, scalability, and resource usage
Perform query tuning in PostgreSQL
Build and maintain data validation and quality checks, including automated tests, reconciliation scripts, and alerting for data anomalies
Monitor ETL jobs and database health
Diagnose failures and performance issues and implement fixes or improvements
Document ETL processes, data dictionaries, lineage, and operational runbooks
Troubleshoot cross-system data issues
Participate in incident response and provide root cause analysis and remediation plans
Participate in code reviews, mentor junior developers, and improve team standards and best practices
Contribute to technology refresh, legacy-system modernization, and cloud and open-source platform migration initiatives

Requirements

What you’ll need

Good knowledge and several years of practical experience in Python development
Solid skills in Postgres and SQL
ETL experience is desirable
Strong analytical skills
A solution-oriented mindset
Ability to work independently
Experience in conceptual work
Excellent understanding of data
Independent and structured working style
Very good command of English, both spoken and written
Experience with IBM Datastage and Oracle
Experience with data modeling, transformation logic, SQL queries, stored procedures, and PostgreSQL functions
Experience with query tuning and ETL process optimization
Experience building data validation and quality checks
Experience monitoring ETL jobs and database health
Experience documenting ETL processes, data dictionaries, lineage, and operational runbooks
Experience troubleshooting cross-system data issues and participating in incident response
Ability to participate in code reviews and mentor junior developers

Benefits

Comp & perks

Flexible working hours
Remote work options (Poland only)
Open and cooperative corporate culture and a trusting working atmosphere
Flat Hierarchies and Short Decision Paths
Individual training opportunities
Interesting technical challenges
Social benefits