Data Platform Admin: MySQL/MongoDB Specialist (Hybrid)

ComeOn Group; Katowice; Híbrido; PLN 180.000 - 240.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Company bonus

Quarterly team events

Remote-work bonus

Hybrid work model

Laptop and smartphone

Office events

Descripción de la vacante

ComeOn Group in Stockholm (Hybrid) or Katowice, Poland, seeks a Data Platform Administrator to own MySQL and MongoDB across development and production, ensuring uptime, performance and secure data operations.

You will lead schema changes, large-table migrations, and data pipelines support, collaborating with developers, BI teams and DevOps, while growing into broader data engineering responsibilities.

Formación

• 5+ years of experience in MySQL and MongoDB administration.
• Experience with schema changes, large-table operations, performance tuning and migrations.
• Strong operational mindset: high-availability setups, backups and platform reliability.
• Comfortable in a fast-paced, hands-on environment.
• Exposure to cloud platforms (BigQuery, AWS, GCP).
• Scripting/automation experience (Python, Bash, SQL). Proactive, confident and ready to take ownership.
• Collaborates effectively with developers, product owners, BI teams, QA and DevOps.
• Eager to modernize legacy database structures and expand into broader data engineering responsibilities, including understanding modern dataflow tooling and pipelines.
• Proficient in English, both spoken and written.

Responsabilidades

• Own MySQL, MongoDB and related systems across development and production environments.
• Ensure database uptime, reliability, performance tuning, monitoring, scaling, backups and security.
• Manage schema changes, large-table operations, and data migrations with confidence and precision.
• Lead database upgrades and work with teams to refactor legacy structures into modern, scalable designs.
• Automate operational tasks to increase efficiency and reliability.
• Support real-time pipelines and data flows across teams.
• Support audits, change management and regulatory compliance.
• Manage access controls and release processes.
• Partner with developers, product owners, BI teams and QA to ensure high-quality, reliable data.
• Collaborate with the team and grow into broader engineering responsibilities over time.

Conocimientos

MySQL administration

MongoDB administration

Schema changes

Large-table operations

Performance tuning

Data migrations

Cloud platforms

Automation scripting

Python

Bash

SQL

Collaboration

Descripción del empleo

ComeOn Group in Stockholm (Hybrid) or Katowice, Poland, seeks a Data Platform Administrator to own MySQL and MongoDB across development and production, ensuring uptime, performance and secure data operations.

You will lead schema changes, large-table migrations, and data pipelines support, collaborating with developers, BI teams and DevOps, while growing into broader data engineering responsibilities.