Senior Database Administrator at Zedcrest Capital Limited

Job role

We're seeking an experienced Senior Database Administrator to own and optimise our diverse database infrastructure spanning both relational and non-relational systems. The ideal candidate will be responsible for ensuring high availability, security, and performance across our multi-database environment.

This role requires a strategic thinker who can balance day-to-day operations with long-term architectural improvements.

Responsibilities

• Design, implement, and maintain database systems across SQL Server, MySQL, PostgreSQL, and NoSQL environments (MongoDB, Redis, Cassandra, etc.)
• Monitor database performance, optimize queries, and tune systems for maximum efficiency.
• Develop and execute backup, recovery, and disaster recovery strategies.
• Implement security best practices, access controls, and ensure compliance with data protection regulations.
• Automate routine database tasks and integrate with CI/CD pipelines.
• Collaborate with development teams on database schema design, data modelling, and optimization.
• Perform capacity planning and scale databases to meet growing demands.
• Troubleshoot critical database issues and provide expert-level support.
• Document database architectures, procedures, and runbooks.
• Mentor junior team members and promote database best practices.

Qualifications

• 5-8+ years of hands-on database administration experience
• Deep expertise with relational databases: SQL Server, MySQL, and PostgreSQL
• Strong experience with NoSQL databases (MongoDB, Redis, Cassandra, or similar)
• Strong knowledge of database security, encryption, and compliance frameworks
• Proven experience with high-availability configurations (clustering, replication, failover)
• Proficiency in query optimization, indexing strategies, and performance tuning for both SQL and NoSQL systems
• Experience with backup/recovery procedures and disaster recovery planning
• Solid understanding of database automation and infrastructure as code (Terraform, Ansible, etc.)
• Strong scripting skills (PowerShell, Bash, Python)
• Excellent problem-solving and troubleshooting abilities
• Strong communication skills for cross-functional collaboration