Data Engineer – Customer Value Management

At DSK, we are building the data foundations behind customer engagement and campaign execution for over 2 million customers. We are looking for a Data Engineer to join our Customer Value Management team and help shape how customer data is transformed into actionable insights, campaigns and personalized customer experiences. This role is ideal for someone who wants to build strong expertise in large-scale data environments and gradually expand into automation and next-generation customer capabilities.

What you will do

• Design, build and maintain data solutions supporting campaign execution, customer segmentation and marketing activities
• Develop and optimize Oracle SQL and PL/SQL solutions using PL/SQL Developer, alongside ETL processes and data transformations within Data Warehouse environments
• Create and maintain campaign data structures, customer selections and reporting datasets
• Work with multiple data models and large datasets to deliver reliable and scalable solutions
•  Partner closely with Campaign Managers and business teams to translate requirements into technical implementation
• Support campaign measurement and performance reporting through data management, preparation and automation
• Continuously improve existing processes by introducing reusable logic and automation opportunities
• Gradually expand into Machine Learning Platform (MLP) initiatives and future customer engagement capabilities;

What we are looking for

• University degree in Computer Science, Mathematics, Engineering or related field
• Experience with SQL and ETL development
• Strong analytical thinking and problem-solving skills
• Ability to understand business and product objectives beyond technical requirements, applying critical thinking to identify data inconsistencies, challenge assumptions, and proactively drive improvements
• Attention to detail and strong focus on data governance and data quality
• Strong organizational skills and ability to work in a dynamic environment
• Good communication skills in English

It would be considered an advantage

• Experience with cloud data environments
• Experience with Databricks, Apache Spark or similar technologies
• Experience with Python, Airflow and/or dbt
• Experience with customer analytics, data warehousing or campaign-related data processes

Why join us?

• Work on high-impact projects supporting customer engagement in a collaborative environment combining business and technology expertise
• Gain hands-on experience in enterprise-scale Data Warehouse and Machine-Learning platform
• Learn and grow into campaign automation and next-generation customer capabilities
• Have the opportunity to influence how customer data capabilities evolve in the future;

We offer:

• Excellent opportunities for professional and career development in one of Bulgaria’s leading banks;
• Food vouchers in the amount of 102.26 euro per month;
• 20 + 5 paid holiday leave;
• Additional Health Insurance;
• Favorable conditions for housing and mortgage lending, as well as for bank products and services;
• Preferences for bank products and services;
• Annual bonus scheme depending on the achieved results;
• Preferential conditions for Multisport / CoolFit card;
• Great location – in the heart of Sofia’s city center;
• Discounts in various companies;