Quick Summary
Database Engineer sought to manage and scale high-performance ClickHouse and MariaDB clusters for an international ad tech startup, working full remote from Portugal. The role focuses on ensuring system reliability, optimizing cost-effective resource utilization, and resolving complex performance bottlenecks through advanced analysis and fine-tuning. Required experience includes proven MySQL/MariaDB administration expertise, knowledge of data partitioning and sharding, and familiarity with Agile methodologies.
Database Engineer (ClickHouse & MariaDB) – Full Remote Portugal
Join EXADS, a dynamic international ad tech startup and part of EXOGROUP, specializing in proprietary ad-serving technology. We are seeking a skilled Database Engineer to manage and scale our critical database infrastructure, supporting high-volume web and mobile projects utilizing Data Streaming, Big Data, and Real-Time Statistics Computation.
Location: Full Remote from anywhere in Portugal (or work from our Porto office).
Your Responsibilities:
- Manage and monitor high-performance database clusters, specifically ClickHouse and MariaDB systems.
- Ensure long-term system reliability, stability, and optimal cost-effective resource utilization.
- Collaborate closely with development teams to design, implement, and maintain databases based on end-user requirements.
- Regularly review and improve database systems’ design and architecture.
- Research and resolve performance bottlenecks through advanced analysis and fine-tuning.
- Contribute to team process improvements, adhering to industry best practices.
- Participate actively in team knowledge sharing activities.
Required Skills & Experience:
- Proven, hands-on experience with MySQL/MariaDB administration.
- Expertise in diagnosing, analyzing, and resolving complex operational database problems.
- Extensive experience in database performance analysis and fine-tuning.
- Knowledge regarding partitioning and sharding of data for scalability.
- Exposure to Agile methodologies and related management tools (JIRA, Confluence).
- Excellent written, spoken, and interpersonal communication skills.
- BS / MS in Computer Science / related technical discipline OR equivalent professional experience.
Desired Skills:
- Exposure to programming languages such as PHP, Python, and Go.
- Previous experience with BigData systems (Hadoop, Impala, ClickHouse) is considered a significant advantage.
What EXADS Offers:
- Competitive salary and a position in a young, dynamic, and international environment.
- Flexible Start Times and Remote Work from Home.
- Private health insurance and a Home Office setup budget of 500 Euros.
- Your Birthday off as a paid holiday.
- Access to quality training platforms (Udemy) and internal/external training through EXOGROUP University.
- Annual training budget up to 1500 Eur and 5 days of study leave.
- Language lessons (Spanish, English, and Portuguese).
- Employee referral program bonus (Earn 2500 Euros).
- Subsidised Well Being Activities and exciting team buildings (e.g., Ibiza).
- Meal card and Relocation Package.


