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I'm a Data and Analytics Engineer with a focus on Big Data and a passion for turning data into actionable insights. I recently pursued a Master of Engineering in Big Data and have worked across global teams including Revolut, BNY Mellon, State Street, Microsoft, ABB, Evidences Analytics, Avaus and Santander. My work spans AML analytics, data pipelines, data lakes, graph analytics, NLP projects and large-scale data migrations, always aiming to align technical solutions with business goals. I'm proficient in Python and SQL, with hands-on experience in Spark, Hadoop, Databricks, Azure and GCP. I enjoy solving complex data problems in Agile environments and I'm exploring Generative AI and RAG-enabled data workflows to enhance decision-making, governance and security.…I'm a Data and Analytics Engineer with a focus on Big Data and a passion for turning data into actionable insights. I recently pursued a Master of Engineering in Big Data and have worked across global teams including Revolut, BNY Mellon, State Street, Microsoft, ABB, Evidences Analytics, Avaus and Santander. My work spans AML analytics, data pipelines, data lakes, graph analytics, NLP projects and large-scale data migrations, always aiming to align technical solutions with business goals. I'm proficient in Python and SQL, with hands-on experience in Spark, Hadoop, Databricks, Azure and GCP. I enjoy solving complex data problems in Agile environments and I'm exploring Generative AI and RAG-enabled data workflows to enhance decision-making, governance and security.

Mert Karakas

Data Scientist, Data Analyst, Cloud Developer, +2

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I'm a Data and Analytics Engineer with a focus on Big Data and a passion for turning data into actionable insights. I recently pursued a Master of Engineering in Big Data and have worked across global teams including Revolut, BNY Mellon, State Street, Microsoft, ABB, Evidences Analytics, Avaus and Santander. My work spans AML analytics, data pipelines, data lakes, graph analytics, NLP projects and large-scale data migrations, always aiming to align technical solutions with business goals. I'm proficient in Python and SQL, with hands-on experience in Spark, Hadoop, Databricks, Azure and GCP. I enjoy solving complex data problems in Agile environments and I'm exploring Generative AI and RAG-enabled data workflows to enhance decision-making, governance and security.…I'm a Data and Analytics Engineer with a focus on Big Data and a passion for turning data into actionable insights. I recently pursued a Master of Engineering in Big Data and have worked across global teams including Revolut, BNY Mellon, State Street, Microsoft, ABB, Evidences Analytics, Avaus and Santander. My work spans AML analytics, data pipelines, data lakes, graph analytics, NLP projects and large-scale data migrations, always aiming to align technical solutions with business goals. I'm proficient in Python and SQL, with hands-on experience in Spark, Hadoop, Databricks, Azure and GCP. I enjoy solving complex data problems in Agile environments and I'm exploring Generative AI and RAG-enabled data workflows to enhance decision-making, governance and security.

Available to hire

I’m a Data and Analytics Engineer with a focus on Big Data and a passion for turning data into actionable insights. I recently pursued a Master of Engineering in Big Data and have worked across global teams including Revolut, BNY Mellon, State Street, Microsoft, ABB, Evidences Analytics, Avaus and Santander. My work spans AML analytics, data pipelines, data lakes, graph analytics, NLP projects and large-scale data migrations, always aiming to align technical solutions with business goals.

I’m proficient in Python and SQL, with hands-on experience in Spark, Hadoop, Databricks, Azure and GCP. I enjoy solving complex data problems in Agile environments and I’m exploring Generative AI and RAG-enabled data workflows to enhance decision-making, governance and security.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Expert

Expert

Language

Polish

Fluent

English

Fluent

Work Experience

Senior Spark Developer at Santander Digital Services

October 10, 2024 - October 10, 2024

End-to-end ETL processes with Spark/Scala; data migration from Hadoop to Azure Databricks; documentation in Jira/Confluence; technologies included Hive, Impala, Kafka, Hadoop, YARN, Elasticsearch, Kibana; CI/CD with Jenkins.

Senior Cloud Developer (Data Engineer) at Avaus

October 21, 2023 - October 21, 2023

Built GCP or Azure-based data solutions for mid-to-large customers; contributed to Avaus Factory profiling data model for real-time marketing automation; supported migration/integration of Synapse serverless and Azure infrastructure for Nordiska Kompaniet and McDonald's Nordic; combined Azure and GCP in multi-cloud setups.

Azure/Big Data Engineer (Data & AI division) at Microsoft

April 1, 2023 - April 1, 2023

SME in Azure data technologies: Spark, Azure Data Factory, Synapse Analytics, Azure Data Lake, REST APIs, ODBC connectors, HDInsight, Spark, Databricks, Azure Analysis Services, Stream Analytics, IoT Hub, Event Hub, Functions. Implemented ETL/ELT and streaming designs; migrated on-prem data warehouses to cloud; responsible for data privacy, masking, access control; acted as escalation SME for ADF, Synapse, Stream Analytics (approx. 50% workload).

Data Engineer - Compliance Data Analytics at State Street

May 14, 2022 - May 14, 2022

Broad analytics on Compliance data using Pandas and PySpark; maintained and queried data lake (Hadoop, HDFS, Cloudera, Hue); Tableau for visualization; Alteryx for automation; projects included insider trading detection model (MRM) and NLP-based internal fraud detection on card transactions.

Analytics Engineer at Evidences Analytics

January 31, 2022 - November 21, 2025

Developed batch and streaming solutions using Azure or on-prem technologies; dashboards in Tableau or Apache Superset; client projects included Bolt, Wahoo, Rockwell Automation, Allegro.

Procurement Automation Specialist at ABB

January 1, 2022 - January 1, 2022

Automated data-intensive processes in SAP ERP and SAP Ariba; leveraged VBA, Selenium, Python, Azure DevOps, SharePoint, SAP, SCMIS, Power Automate and Excel to streamline procurement workflows.

Data Analyst, AML/Prevention/KYC at BNY Mellon

October 15, 2021 - October 15, 2021

Corporate KYC focused on data from internal and external databases (e.g., LexisNexis); used Jira, SQL, LexisNexis, Excel, Quantexa, HDFS and various database-related tools; conducted network graph analytics.

Compliance Data Analyst at Revolut LTD

June 1, 2020 - June 1, 2020

AML analytics on retail customers using internal and external data sources; primary toolset included SQL, Jira, Confluence and Excel; performed relationship analysis through graph databases (network graph analytics).