Senior Database Administrator (Oracle Application DBA / Cloud)
- Toronto, ON, Canada
Full-time
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Job details
- Job type
- Full-time
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- Posting language
- English
- Posted
Original job description
Senior Oracle Application DBA
Role Overview
We are seeking an experienced Senior Oracle Application DBA to optimize, scale, and maintain mission-critical database applications. This role partners closely with development and engineering teams to ensure high availability, optimal SQL/PL-SQL performance, and smooth database operations, while helping drive database modernization and cloud migration initiatives.
Key Responsibilities
- Collaborate with application development teams on data modeling, schema design, and deployment of complex PL/SQL packages, procedures, triggers, and views.
- Analyze execution plans, perform SQL query tuning, and optimize index structures to eliminate bottlenecks in high-throughput transactional environments.
- Lead database release automation, code reviews, and schema migrations across development, staging, and production environments.
- Monitor database application health, identify lock contention, resolve deadlocks, and troubleshoot latency issues.
- Partner with infrastructure and cloud teams to design, test, and execute on-premises to AWS cloud database migrations.
- Participate in database capacity planning, failover drills, and disaster recovery design.
Required Qualifications & Skills
- Oracle Application DBA Expertise: 8+ years specializing in Oracle Database (12c/19c+) application support, advanced PL/SQL programming, execution plan analysis, and performance diagnostics (AWR, ASH, ADDM).
- AWS & Cloud Databases: Practical experience administering managed database services, including Amazon RDS (Oracle/PostgreSQL) and Amazon Aurora.
- PostgreSQL: Hands-on working knowledge of PostgreSQL architecture, schema design, and performance optimization.
- Cloud Migration Experience: Strong, proven track record of migrating on-premises databases to AWS environments using tools such as AWS DMS, SCT, or native utilities.
- Collaboration & Release Management: Solid background in CI/CD integration for database deployments and working alongside Agile engineering teams.
Nice-to-Have Qualifications
- Experience with Oracle Exadata administration and performance tuning features (Smart Scan, Hybrid Columnar Compression).
- Proficiency in shell scripting (Bash) and automation using Python.
- Relevant AWS (e.g., AWS Certified Database – Specialty) or Oracle certifications.
More about this job
Responsibilities
Collaborate with development and engineering teams to design schemas, develop and deploy PL/SQL components, tune SQL performance, and automate database releases and migrations. Monitor database health, resolve performance and concurrency issues, and support AWS migrations, capacity planning, failover testing, and disaster recovery.
Requirements
Requires 8+ years of Oracle Database application administration experience, including advanced PL/SQL, performance diagnostics, and SQL tuning. Also requires practical experience with AWS managed databases, PostgreSQL, on-premises-to-AWS migrations, and database CI/CD; Exadata, scripting, automation, and relevant certifications are advantageous.
Skills
- Oracle Database Administration
- PL/SQL Programming
- SQL Query Tuning
- Execution Plan Analysis
- Database Performance Diagnostics
- Amazon RDS
- Amazon Aurora
- PostgreSQL
- AWS Database Migration
- AWS DMS
- AWS SCT
- Database CI/CD
- Schema Migration
- Disaster Recovery
- Bash Scripting
- Python Automation
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Software
- Data & Analytics
- Engineering
Keywords
- Oracle Database
- Oracle 12c
- Oracle 19c
- Oracle Application DBA
- PL/SQL
- SQL Query Tuning
- Execution Plan Analysis
- AWR
- ASH
- ADDM
- Amazon RDS
- Amazon Aurora
- PostgreSQL
- AWS
- AWS DMS
- AWS SCT
- Cloud Migration
- CI/CD
- Agile
- Schema Design
- Database Release Automation
- Database Capacity Planning
- Disaster Recovery
- Oracle Exadata
- Smart Scan
- Hybrid Columnar Compression
- Bash
- Python
- AWS Certified Database Specialty
- Oracle Certifications