Oracle Database Administrator

Toronto, ON
On-site
Posted Oct 9, 2026
1 position

$100,000–$120,000 / year

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Employment type: Full-time
Experience level: Lead · 10+ years
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Collaborate with application teams to design schemas, develop and deploy PL/SQL objects, tune queries, manage database releases, and troubleshoot performance and availability issues. Support on-premises-to-AWS migrations, capacity planning, failover and disaster recovery activities, and production maintenance.

Job details

Inclusion without Exception Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes. TCS has been serving the Canadian marketplace for more than 35 years and today is the technology partner of choice for many of the country's leading organizations. As one of the largest IT services providers in Canada and globally, TCS is aiming to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence. Rooted in the heritage and values of the Tata Group, TCS is focused on creating long-term value for its clients, investors, employees, and the communities it serves. With a highly skilled workforce supporting customers from coast to coast, TCS has consistently been recognized as a Top Employer by the Top Employers Institute, including a recent top ranking at the country level. TCS also sponsors 14 of the world's most prestigious marathons and endurance events, including the TCS Toronto Waterfront Marathon, reflecting its commitment to health, sustainability, and community empowerment. Job Description :- Role and 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. Support production deployment and other maintenance activities over weekend and “after office” hours on weekdays as needed. “Mandatory” Skills: Senior years of experience in Oracle Database Administration Oracle Application DBA Expertise: good 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. Ability to work with offshore teams for maintenance and production support activities “NICE TO HAVE” skills • 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 Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources. Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.

What you’ll do

Requirements

The role requires extensive Oracle Database and Oracle Application DBA experience, including advanced PL/SQL, performance diagnostics, and administration of AWS managed databases and PostgreSQL. Candidates should have a proven record of AWS database migrations, CI/CD and release management, and collaboration with Agile and offshore teams; Exadata, scripting, and relevant certifications are advantageous.