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Senior Database Engineer
Location
Portugal
Posted
130 days ago
Salary
0
Seniority
Senior
Job Description
Senior Database Engineer
8x8
• Lead the architecture, management, and optimization of Oracle 19c RAC, MySQL 8, and PostgreSQL database systems across on-premises, AWS, and OCI cloud environments. • Define and drive database standards, best practices, and operational runbooks across the organization. • Own database upgrade and migration strategies for Oracle and MySQL, ensuring minimal downtime and risk mitigation across all environments. • Lead advanced database troubleshooting, root cause analysis, and performance engineering across Oracle, MySQL, PostgreSQL, HAProxy, and Keepalived. • Architect and maintain database replication topologies including master-slave, master-master, and cross-region configurations for disaster recovery. • Design and implement automation for database provisioning, patching, scaling, and failover using Python, Terraform, and Ansible. • Own backup and recovery strategy using RMAN, mysqldump, pg_dump, and point-in-time recovery, ensuring RPO/RTO targets are met and regularly tested. • Implement and maintain database observability including monitoring, alerting, dashboards, and capacity forecasting using Grafana, CloudWatch, or equivalent platforms. • Collaborate with application development teams on schema design, query optimization, indexing strategies, and capacity planning. • Mentor and guide junior database engineers, conducting code and architecture reviews. • Participate in on-call rotations as a senior escalation point for critical database incidents. • Evaluate emerging database technologies and make recommendations for adoption where appropriate.
Job Requirements
- 7+ years of hands-on experience in database engineering or DBA roles, with at least 3 years in a senior or lead capacity.
- Expert-level knowledge of Oracle 19c RAC administration, including RMAN, Data Guard, patching, and advanced query optimization.
- Deep experience with MySQL 8 administration, replication architectures (master-slave, master-master, GTID-based), and performance tuning at scale.
- Strong working knowledge of PostgreSQL administration, replication, and performance tooling.
- Proven experience designing and operating high-availability and disaster recovery database architectures in production.
- Strong proficiency in Linux systems administration (Ubuntu/RHEL-based) and shell scripting.
- Extensive experience with automation and infrastructure-as-code: Python, Terraform, Ansible.
- Solid understanding of high-availability components: HAProxy, Keepalived, or equivalent load balancing and failover solutions.
- Experience with Git-based workflows, CI/CD practices, and database change management processes.
- Demonstrated ability to lead incident response, perform root cause analysis, and drive post-incident improvements.
- Excellent communication skills with the ability to influence technical decisions and collaborate effectively across time zones in a distributed team.
Benefits
- Health insurance
- 401(k) matching
- Flexible work hours
- Paid time off
- Professional development opportunities
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