استخدام کارشناس ارشد پایگاه داده (DBA)

شرح موقعیت شغلی

• Design, configure, and maintain highly available MariaDB (e.g., Galera clustering, replication) and MongoDB (e.g., replica sets, sharding) environments.
• Develop and implement robust disaster recovery strategies for minimal downtime and data loss.

• Establish and oversee regular backup and recovery plans to align with business continuity objectives.
• Validate backup integrity, maintain recovery metrics, and continuously improve RTO/RPO targets.

• Continuously monitor performance using appropriate tools and proactively resolve issues before they impact business operations.
• Perform query tuning, indexing strategies, and statistics management to enhance performance and scalability.

• Implement partitioning/sharding strategies to manage large datasets efficiently and maintain peak performance.
• Plan and execute scheduled maintenance activities (e.g., vacuuming, compaction, pruning) without service disruption.

• Develop and maintain automation scripts (primarily in Bash, with potential exposure to NodeJS or other languages) for routine tasks, deployments, and monitoring.
• Collaborate with DevOps teams to integrate database processes into CI/CD pipelines and microservices workflows.

• Apply in-depth knowledge of MariaDB and MongoDB to maintain optimal architecture and troubleshoot complex issues.
• Conduct root cause analyses and implement effective, long-term solutions for recurring problems.

• Work closely with application developers, DevOps engineers, and other stakeholders to ensure database designs align with microservices best practices.
• Continuously evaluate and introduce new technologies or processes to enhance scalability, reliability, and performance.

• 3+ years of experience as a MariaDB and MongoDB DBA or in a similar role.
• Proven track record in designing and administering high-availability architectures (e.g., Galera, replication, MongoDB sharding/replica sets).
• Hands-on experience with backup/restore operations, performance tuning, and monitoring in a production setting.

• Advanced knowledge of MariaDB and MongoDB—including query optimization, partitioning, and cluster configurations.
• Proficiency in Bash scripting and willingness to learn other scripting or programming languages.
• Experience with DBT and ETL processes to support data transformations across microservices.
• Solid understanding of indexing strategies, statistics management, and partitioning/sharding methodologies.
• Familiarity with containerization and orchestration (e.g., Docker, Kubernetes) is a plus.

• Excellent problem-solving and analytical skills—adept at identifying root causes and implementing fixes in a fast-paced environment.
• Strong communication and collaboration abilities—able to work cross-functionally with developers, DevOps engineers, and business stakeholders.

• Experience with other data stores (e.g., Redis) or cloud-based database services.
• Familiarity with additional database systems, monitoring tools, and continuous integration pipelines.

مهارت‌های مورد نیاز

• DBA
• پایگاه داده
• oracle
• Sql Server
• data guard

حداقل سابقه کار

• سه تا شش سال

جنسیت

• مهم نیست

وضعیت نظام وظیفه

• مهم‌ نیست

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