Database Engineer

Company Description

efbet is the largest chain of casinos and sports bars in Bulgaria, offering a wide range of gaming and entertainment options including slots, live blackjack, poker, roulette, sports betting, and online casino. The brand operates 52 modern casinos equipped with high-quality gaming technology, along with 6 sports bars and Bulgaria’s first licensed online bookmaker, www.efbet.com. efbet positions itself as a leader in the industry by delivering proper, reliable, and quality service to its customers. The company is committed to meeting customer needs through clearly defined mission and values, focusing on a premium experience across physical and online platforms.

Role Description

We are looking for a Data Engineer/Data Analyst to improve our data performance, create effective reports, and design reporting architectures. The ideal candidate will be responsible for query optimization, report generation, database modifications, and aggregation strategies to support business intelligence and data-driven decision making.

Responsibilities :

• SQL Query Optimization – Improve the performance of existing queries, indexes, and database operations to ensure efficient data extraction.

• Report Creation – Develop detailed reports and dashboards using SQL, BI tools (e.g. Superset, Power BI, Looker, Tableau), or stored procedures.

• Database Data Transformation – Update, transform, and manipulate data securely while ensuring data integrity.

• Building Aggregations for Reporting – Designing effective data aggregation strategies to support real-time and scheduled reporting.

• Designing Report Architecture – Developing and maintaining a scalable and structured reporting system for various business needs.

• Tuning Database Performance – Monitoring query execution plans and optimizing indexing, partitioning, and caching.

• Working with Stakeholders – Collaborating with business analysts and stakeholders to understand reporting requirements and provide actionable insights.

Requirements:

• Strong SQL skills – Expertise in writing complex queries, stored procedures, and optimizing database performance.

• Reporting Tool Experience – Familiarity with Power BI, Tableau, Looker, or similar BI tools.

• Database Experience – Familiarity with relational databases such as PostgreSQL.

• ETL and Data Transformation – Understanding ETL processes and managing data pipelines.

• Indexing and Partitioning – Experience in query tuning, indexing strategies and database partitioning.

• Problem-solving skills – Ability to debug slow queries and improve database performance.

What we offer:

• Competitive salary
• Meal vouchers
• Multisport card
• Additional health insurance including tea
• Internal and external training programs
• Teambuilding and local company events
• Employee referral bonuses
• Cycling friendly office