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I’m Arkadiusz Kordos, a technical data professional with 13+ years of experience designing, building and migrating data platforms. I specialise in data engineering, ETL/ELT pipelines, and cloud migrations, with a focus on reliability, governance, and scalable analytics. I enjoy turning complex data into insights that drive business decisions and love exploring how AI tools can streamline data workflows. I’m passionate about collaborating with cross-functional teams to define requirements, implement robust data models, and deliver high-quality data products. I thrive in fast-paced environments and enjoy mentoring others while continuously learning new technologies to improve data capabilities.…I’m Arkadiusz Kordos, a technical data professional with 13+ years of experience designing, building and migrating data platforms. I specialise in data engineering, ETL/ELT pipelines, and cloud migrations, with a focus on reliability, governance, and scalable analytics. I enjoy turning complex data into insights that drive business decisions and love exploring how AI tools can streamline data workflows. I’m passionate about collaborating with cross-functional teams to define requirements, implement robust data models, and deliver high-quality data products. I thrive in fast-paced environments and enjoy mentoring others while continuously learning new technologies to improve data capabilities.

Arkadiusz Kordos

Data Scientist, Developer, Database Developer, +2

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I’m Arkadiusz Kordos, a technical data professional with 13+ years of experience designing, building and migrating data platforms. I specialise in data engineering, ETL/ELT pipelines, and cloud migrations, with a focus on reliability, governance, and scalable analytics. I enjoy turning complex data into insights that drive business decisions and love exploring how AI tools can streamline data workflows. I’m passionate about collaborating with cross-functional teams to define requirements, implement robust data models, and deliver high-quality data products. I thrive in fast-paced environments and enjoy mentoring others while continuously learning new technologies to improve data capabilities.…I’m Arkadiusz Kordos, a technical data professional with 13+ years of experience designing, building and migrating data platforms. I specialise in data engineering, ETL/ELT pipelines, and cloud migrations, with a focus on reliability, governance, and scalable analytics. I enjoy turning complex data into insights that drive business decisions and love exploring how AI tools can streamline data workflows. I’m passionate about collaborating with cross-functional teams to define requirements, implement robust data models, and deliver high-quality data products. I thrive in fast-paced environments and enjoy mentoring others while continuously learning new technologies to improve data capabilities.

Available to hire

I’m Arkadiusz Kordos, a technical data professional with 13+ years of experience designing, building and migrating data platforms. I specialise in data engineering, ETL/ELT pipelines, and cloud migrations, with a focus on reliability, governance, and scalable analytics. I enjoy turning complex data into insights that drive business decisions and love exploring how AI tools can streamline data workflows.

I’m passionate about collaborating with cross-functional teams to define requirements, implement robust data models, and deliver high-quality data products. I thrive in fast-paced environments and enjoy mentoring others while continuously learning new technologies to improve data capabilities.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Data Engineer at British Airways

January 1, 2025 - Present

Leading the strategic migration of enterprise-scale HR datasets from legacy Oracle environments to Snowflake/DBT/Airflow. Ensuring data integrity and high-performance retrieval for critical HR analytics and reporting. Architecting and deploying robust ELT pipelines orchestrated via Apache Airflow and transformed using dbt to ensure modularity, version control, and high data quality. Mapping complex on-premise relational structures to high-performance cloud models while maintaining strict data governance and integrity for sensitive HR information.

Data Engineer at CodiLime

January 1, 2022 - January 1, 2025

Collaborate with cross-functional teams to gather requirements, prepare data models, and develop ETL processes, enabling effective data analysis and reporting across the organisation. Engineer scalable data pipelines to store diverse datasets by leveraging Snowflake's cloud-based data warehousing capabilities, Spark's distributed processing power, Python, and Airflow. Optimise data processing performance and resource utilisation through partitioning, caching, and query techniques to minimise costs and improve responsiveness.

Data Engineer at Aviva

January 1, 2022 - January 1, 2022

Spearheaded the migration of critical data assets from Microsoft SQL Server to PostgreSQL to ensure data integrity and reduce downtime. Developed complex PL/pgSQL procedures and functions to automate data processing, transformation, and validation tasks, enhancing data quality and workflows. Provided technical guidance to stakeholders throughout the migration process and advised on database best practices.

Data Engineer at Cuvva

January 1, 2019 - January 1, 2022

Initiated a data warehouse to centralise data from disparate sources (Intercom, AppsFlyer, etc.), facilitating efficient data analysis and reporting by employing Kimball and Data Vault methodologies. Extracted and transformed complex JSON data, migrated the warehouse from PostgreSQL to Amazon Redshift, and integrated Looker for self-service analytics.

Data Modeller at Capitalise.com

January 1, 2019 - January 1, 2019

Led the conceptual, logical, and physical design of the data warehouse and structured seamless ETL processes in Apache Airflow to automate data workflows with validation and error handling.

Data Modeller at Arriva Group

January 1, 2017 - January 1, 2019

Directed data modelling efforts for Arriva UKT and contributed to the data architecture. Implemented a data warehouse on AWS Redshift using Python and SnapLogic, including processing of XML and geospatial GPS data for route optimisation and fleet management. Contributed to the logical and physical data warehouse design for Arriva UKB.

Database Developer at BRE

January 1, 2017 - January 1, 2017

Orchestrated the low/medium-level creation of a large-scale data warehouse migration (9B records) from SQL Server and Oracle to AWS Redshift. Led design phases for multimillion-pound projects within the Train department and managed the Fire Department Digitalisation Project by refining stored procedures and complex queries.

Data Engineer at UPS

January 1, 2016 - January 1, 2017

Worked as a Data Modeller and Database Developer to safeguard data management and retrieval by creating data models. Crafted stored procedures, queries, and functions, and optimised query performance through indexing strategies.

SQL DB Developer at Transport for London

January 1, 2011 - January 1, 2016

Transferred critical data from legacy MS Access and Excel systems to a SQL Server environment, enhancing reporting accessibility. Delivered a data warehouse and reporting solution for the Land Surveying Division, including geospatial data from total stations to support safety-critical analyses.