Alper B.

Data Engineer

Top performer 10/10

Turkey

Trusted member since 2024

20 years of experience

He has a firm grasp of data across various domains, enabling him to anticipate challenges and deliver proactive solutions. Notably, he designed and implemented a data warehouse for a Turkish financial institution, integrating API data into a scalable OLAP structure and independently creating ETL workflows.

His ability to communicate complex concepts clearly and his proactive approach to problem-solving make him a valuable asset to any organization.

Main expertise

AWS Athena5 years

MSSQL7 years

T-SQL5 years

BigQuery5 years

11+

Experience4

Data Engineer

Freelance•

Information Technology (IT) and Services

Apr 2024 · 2y 6m

Migrated historical data from MS Access to Snowflake in AWS;
Developed Python scripts and Lambda functions to retrieve daily data from call center systems via API calls;
Collaborated on designing SQL Mesh models to transform raw data into a reportable format;
Generated reports and visualizations using Tableau.
Processed Google Ads data using GCP Dataform;
Designed and implemented ETL workflows with Apache Airflow;
Managed Looker repository and created dashboards using LookML for data visualization.

AWS

Apache Spark

Python

AWS SQS

SQL

13+

Data Engineer

Krakenflex•

Energy and Utilities

May 2022 - May 2024 · 2y

Designed and developed product metric data models using LookML;
Built dashboards and data visualizations in Looker to support business insights;
Designed and maintained AWS Glue workflows to manage ETL processes;
Created and optimized Lambda functions using Python for data processing and automation;
Developed Athena SQL queries for efficient data analysis;
Created and maintained CloudFormation templates to manage infrastructure as code;
Built Python scripts to streamline data analysis and reporting tasks;
Troubleshot and resolved performance issues in ETL pipelines to ensure optimal efficiency;
Developed and maintained AWS Glue jobs for data transformation;
Managed AWS Glue crawlers to catalog and prepare data for analysis.

AWS

Apache Spark

Python

AWS SQS

SQL

Data Engineer

Avios•

Travel Booking

May 2022 - Oct 2023 · 1y 5m

Built dashboards and data visualizations using Amazon QuickSight to support decision-making;
Designed and maintained AWS Glue workflows to manage and automate data processing tasks;
Developed and maintained Lambda functions in Python for data processing and automation;
Created and optimized Athena SQL queries to facilitate efficient data analysis

AWS

Apache Spark

Python

AWS SQS

SQL

13+

Data Engineer

Bluenet•

Information Technology (IT) and Services

Jan 2017 - Nov 2022 · 5y 10m

Designed Python scripts to transfer data between on-premises and cloud databases, including Azure SQL and Google BigQuery;
Created PowerShell scripts to automate maintenance tasks for over 50 database servers;
Developed stored procedures and functions for data transformation as required;
Built Apache Airflow DAGs to streamline data transfers between systems;
Designed and implemented Azure Data Factory jobs for efficient ETL processes;
Supported client development teams in database development and optimization;
Designed data warehouse structures to support scalable and efficient data analysis;
Actively maintained and managed databases on client on-premises servers to ensure optimal performance.

PostgreSQL

Apache Spark

T-SQL

SQL

Microsoft Power BI

Engineering excellence

All Data Engineers who have applied to Proxify are scored from 0 to 300 on engineering excellence, one of the five parameters we evaluate. This score reflects engineering excellence only, based on interviews, take-home assignments, live coding sessions, and/or on-the-job performance reviews. The curve shows how all evaluated Data Engineers are distributed across that range, where our acceptance threshold for this parameter sits, and where Alper stands.