Senior Data Engineer

Nexo

full-time

Posted on: 9/22/2025

Origin: • 🇧🇬 Bulgaria

✨ AI Apply

Senior

Amazon RedshiftAWSETLMariaDBMongoDBMySQLNoSQLPostgresPythonSQL

About the role

Discover, analyze and assemble large, complex data sets to meet functional and non-functional business requirements.
Build ETL pipelines for diverse data sources using SQL and Python in an AWS environment.
Work with stakeholders (Executive, Product, Engineering) to assist with data-related technical issues and support data needs.
Develop data tools for business departments to build and optimize products.
Maintain and optimize existing data models and data architecture.
Build processes supporting data transformation, metadata, dependencies and workload management.
Perform root cause analysis on data and processes to answer business questions and identify improvements.
Predict and validate performance for significant scale increases and manage bottlenecks in advance.

Strong experience with relational SQL and NoSQL databases (Postgres/Redshift, MySQL/MariaDB/Aurora, MongoDB).
Experience with Python.
Experience with AWS services: S3, Athena, Redshift, Glue.
Experience building, optimizing and supporting big data pipelines, architectures and data sets.
Experience performing root cause analysis on internal and external data and processes.
Experience building processes for data transformation, data structures, metadata, dependency and workload management.
Ability to predict and validate performance at 10x, 100x, 1000x scale and manage bottlenecks.
Experience supporting and working with cross-functional teams (Executive, Product, Engineering) in a dynamic environment.