Enis E.

About Me

Enis is a Senior Data Engineer and Data Warehouse development and implementation professional with 20+ years of experience designing and implementing complex data management and BI solutions using Python, Scala, SQL, ETL, Spark, AWS S3, CI/CD, and data modeling, among others. He is a highly motivated achiever with strong communication (both at senior stakeholder and IT team levels) and leadership skills, demonstrated across diverse industry domains including financial services, insurance, leisure, manufacturing, energy, and IT. With an excellent business understanding, commercial awareness, and an unwavering passion for new technologies, data, and analytics, Enis creates solutions that make a significant difference to client businesses.

Database

DevOps

Other

Work history

UpStack
UpStack
Senior Data Engineer
2022 - Present (3 years)
Remote
  • Building and improving databases, acquiring data, ETL/ELT, Big Data pipelines, and deploying cloud services on projects.

  • Administering infrastructure solutions to improve data models, increase data accessibility, and foster data-driven solutions for clients.

  • Implementing monitoring solutions to ensure data integrity and working closely with engineers, product managers, and other stakeholders.

Zoolatech
Zoolatech
Senior Data Engineer
2024 - Present (1 year)
Remote
  • Developing workflows in Treasure Data (TD) involving creating Bash scripts, orchestrating workflows using Digdag, and using Kafka Consumers.

  • Converting SQL stored procedures to Spark in Databricks.

  • Working on CI/CD via GitLab.

Data EngineeringBash Script KafkaSQL Stored Procedures SparkDatabricks CI/CD GitLab CI/CD PysparkBig QuerySQL
ComeOn Group
ComeOn Group
AWS Data Engineer
2021 - 2024 (3 years)
Remote
  • Worked for a leading global player in the rapidly growing iGaming market, on its proprietary platform.

  • Created and maintained a near-realtime data stream platform for the company's gaming activity and for third-party integrations and reporting purposes.

  • Created pipelines producing feeds in AWS and GCP using Airflow and BigQuery and worked with Terraform and GitLab.

  • Acquired datasets that align with business needs.

Smartmind
Smartmind
Data Warehouse Architect | Principal Technical Consultant
2020 - 2021 (1 year)
Istanbul, Turkey
  • Led a technical team and delivered a DWH project from scratch for Şekerbank.

  • Conducted training on Oracle Exadata 19c for ODI 12c environment using multiple technologies (OBIEE 12c, ODI 11g/12c, PL/SQL, and Oracle Exadata 12c).

  • Developed algorithms to turn data into useful, actionable items.

InspireIT
InspireIT
BI/DWH Principal Technical Consultant
2020 - 2020
Istanbul, Turkey
  • Developed data marts and reports in Power BI and OBIEE 12c.

  • Created multiple packages in PL/SQL and used ODI 11g and 12c for ETL activities.

  • Performed data mart development on SSIS and T-SQL to be reported on a Cognos environment.

Business IntelligenceData EngineeringPL/SQLPowerBIETLMS SSIST-SQLOracle Business Intelligence Enterprise Edition 11g (OBIEE) OBIEEData Marts Oracle Data Integrator (ODI) ODISQL Server Integration Services (SSIS) Cognos
ING Bank
ING Bank
Product Manager | Data Engineer
2018 - 2020 (2 years)
Istanbul, Turkey
  • Developed an Oracle Exadata 12c Hive data ingestion project using Apache Sqoop tool and scripting in Scala.

  • Productionized data science projects via Python/PySpark on batch server.

  • Worked on a POC to enable near-realtime data transfer using Apache Kafka and Debezium Striim (previously Golden Gate), which provides an in-memory technology to enable enterprise-grade Kafka solutions with reliability and scalability using less coding.

Data EngineeringOracleScalaApachePythonPysparkKafkaData ScienceHiveApache Sqoop Oracle ExadataProof of Concept (POC) Data Transfers Debezium
GTech
GTech
Principal Consultant | DW Architect
2014 - 2018 (4 years)
Istanbul, Turkey
  • Re-designed and built a corporate data warehouse for TBank.

  • Used Striim for real-time data integration with Oracle database and performed stream processing to identify potentially fraudulent transactions.

  • Worked with a BA team to design and create a corporate data warehouse consisting of 15+ data marts.

Danske Commodities
Danske Commodities
Business Intelligence Developer
2014 - 2014
Istanbul, Turkey
  • Contracted as a BI developer for an international trader of energy-related commodities that accesses and analyzes market data.

  • Established requirements and coordinated communication between several teams and developed a SSAS solution to keep track of HR statistics.

  • Developed several SSIS solutions to scrape data from websites and integrate it with existing data warehouse.

Business IntelligenceSQLMS SSISData WarehouseMSSQLSQL BI Development Studio SQL Server Analysis Services (SSAS) SQL Server Integration Services (SSIS) Web ScrapingC#
NIIT Technologies Limited (now Coforge)
NIIT Technologies Limited (now Coforge)
Technical Lead
2011 - 2013 (2 years)
Remote
  • Created a series of SSAS cubes for claim and premium data.

  • Designed and implemented a product-level table partitioning strategy to improve maintenance and performance of the data warehouse product.

  • Performance tuned a client-specific data warehouse component, resulting in cutting the overall component runtime by 70%.

  • Implemented an incremental data load logic from a flat file-based data feed into the company's data warehouse product – Acumen Advantage.

MS SSISMSSQLT-SQLData WarehouseSQL Server Analysis Services (SSAS) OLAPPerformance Tuning
David Lloyd Leisure
David Lloyd Leisure
BI Developer
2009 - 2011 (2 years)
Remote
  • Developed numerous reports for membership, marketing, and finance departments, working on projects spanning across three months at a time.

  • Automated front desk for synchronization using SSIS and took part in a data warehouse project that will eventually replace the existing reporting services solution for MIS function.

  • Developed SQL database object views, stored procedures, triggers, and functions that all reports are based on.

Business IntelligenceMS SSISSQLSQL Server Integration Services (SSIS) Data WarehouseSQL Stored Procedures SQL Triggers Database Triggers SQL Functions SQL Views
Close Brothers (via DMC Software Solutions)
Close Brothers (via DMC Software Solutions)
CRM Consultant
2004 - 2009 (5 years)
London, United Kingdom
  • Worked as a database consultant/developer for a Sage partner specializing in customizing, training, supporting, supplying, and implementing Sage CRM and Microsoft Dynamics business solutions.

  • Managed small to mid-sized Sage SalesLogix projects from start to finish including installation, data migration, system architecture, database design, customization, and support.

  • Wrote a complete data migration solution to replace legacy databases using DTS and SSIS for Lloyds TSB Commercial Finance and Close Brothers Treasury.

  • Worked with major customers including Lloyds TSB Commercial Finance, Close Brothers Treasury Division, and Renault UK.

CRM SystemsSQLT-SQLFinance SystemsSage Database Development Microsoft Dynamics CRM Data MigrationSystem ArchitectureDatabase DesignDTS SQL Server Integration Services (SSIS) Banking & Finance
Bakkavor
Bakkavor
SQL/Report Developer
2001 - 2004 (3 years)
Istanbul, Turkey
  • Acted as a reporting analyst/developer for one of UK's biggest food manufacturing companies producing mostly ready-to-eat food for supermarkets like Tesco, Sainsbury’s, Waitrose, and ASDA operating across 28 factories.

  • Created applications (Recipe Generation program) in VB.NET/VB from scratch to be used in factories.

  • Developed several COM objects for both business and data layers.

  • Integrated Crystal Reports in VB 6.0 and ASP.NET applications.

SQLVB.NetASP.NETSQL ServerVisual Basic 6 (VB6) Crystal ReportsMicrosoft Component Object Model (COM) Food & Beverage FMCG

Showcase

Data Engineer - Enterprise DWH Şekerbank
Data Engineer - Enterprise DWH Şekerbank
  • Developed an enterprise DWH from scratch for a company's business data.

  • Led a technical team and provided training on Oracle Exadata 19c and ODI 12c.

  • Utilized technologies including OBIEE 12c, ODI 11g/12c, PL/SQL, and Oracle Exadata 12c.

Data Engineer - ING Bank
Data Engineer - ING Bank
  • Developed an Oracle Exadata 12c Hive data ingestion project using Apache Sqoop and Scala scripting.

  • Integrated with Oracle Hive and utilized Sqoop/Scala ETL for data transformation.

  • Optimized Spark runtime for real-time reporting on Kafka.

Education

Hadoop Administration - Level 1
Hadoop Administration - Level 1
IBM
2019 - 2019
Oracle Data Integrator 12c Certified Implementation Specialist
Oracle Data Integrator 12c Certified Implementation Specialist
Oracle
2017 - 2017
Postgraduate Course, Database Architecture
Postgraduate Course, Database Architecture
The Open University
2005 - 2005
Postgraduate Degree, Econometrics
Postgraduate Degree, Econometrics
Marmara University - Turkey
1996 - 1997 (1 year)
BSc (Hons) 2.1 Business and Economics
BSc (Hons) 2.1 Business and Economics
Istanbul University - Turkey
1991 - 1995 (4 years)