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Senior Oracle Database Developer Jobs in Ontario

Maarut

CA$70 - CA$75/hr

Oracle Database upgrades (19c to 26ai) * Infrastructure modernization * Security and identity ... Experience with DevOps tools such as CodePipeline, CDK/CloudFormation, Kiro, CloudWatch, Jenkins ...

Recvue

Performance Engineer

Toronto, ON · On-site +1

The key objective of this performance engineering role is to measure, monitor, report, and optimize ... Experience with Oracle Multitenant Pluggable Databases * Experience with tools such as Oracle ...

ServiceNow

Senior Database Engineer

Toronto, ON · On-site +1

Become an SME in production database troubleshooting, ServiceNow instance performance issues and ... Formal experience on a DevOps(Kubernetes and CICD pipeline) or Performance or support team ...

Bank of Canada

Senior Developer

Ottawa, ON · On-site

Senior Developer Take a central role The Bank of Canada has a vision to be a leading central bank ... Oracle databases; solid understanding of SQL * supporting applications with high-criticality ...

Td

Database Platform Engineer

Toronto, ON

CA$81K - CA$115K/yr

We are looking for a senior hands-on engineer who can build infrastructure, automate delivery ... Position Overview We are seeking a highly skilled Senior Database Platform Engineer responsible for ...

Merative

Senior Software Developer

Mississauga, ON

Participate in the review of product engineering artifacts (e.g., specifications, designs, test ... Oracle database and SQL * Ability to work within an Agile development model. * Ability to learn ...

New

Merative

Senior Java Developer

Mississauga, ON · On-site +1

CA$129K - CA$194K/yr

Participate in the review of product engineering artifacts (e.g., specifications, designs, test ... Oracle database and SQL * Networking Technologies: VLAN, Switches, and Load Balancing * Storage ...

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Senior Oracle Database Developer information

See Ontario salary details

$50

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How much do senior oracle database developer jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for senior oracle database developer in Ontario is $62.63, according to ZipRecruiter salary data. Most workers in this role earn between $59.86 and $66.59 per hour, depending on experience, location, and employer.

What is a senior Oracle Database Developer?

A Senior Oracle Database Developer is an experienced IT professional who specializes in designing, developing, and maintaining Oracle database systems. They are responsible for creating complex database solutions, optimizing performance, and ensuring data integrity and security. Senior developers often lead database projects, mentor junior team members, and collaborate with other departments to implement business requirements. Their expertise includes SQL, PL/SQL, performance tuning, and in-depth knowledge of Oracle database architecture.

What are some typical challenges faced by senior Oracle Database Developers when optimizing complex queries?

Senior Oracle Database Developers often encounter challenges such as identifying inefficient SQL statements, resolving performance bottlenecks, and managing large volumes of data. These can involve analyzing execution plans, tuning indexes, and collaborating closely with application developers to refactor queries. Staying updated on Oracle’s evolving features and best practices is essential to ensure optimal database performance and reliability.

What are the key skills and qualifications needed to thrive as a senior Oracle Database Developer, and why are they important?

To thrive as a Senior Oracle Database Developer, you need advanced proficiency in SQL, PL/SQL, database architecture, and performance tuning, typically supported by a relevant degree and several years of experience. Expertise in Oracle Database technologies, data modeling tools, and certifications like Oracle Certified Professional (OCP) are often required. Strong analytical thinking, problem-solving skills, and effective communication set top performers apart in this role. These skills are crucial for designing robust database solutions, optimizing system performance, and collaborating with cross-functional teams to meet organizational goals.

What is the difference between Senior Oracle Database Developer vs Oracle Database Administrator?

AspectSenior Oracle Database DeveloperOracle Database Administrator
Primary FocusDeveloping, coding, and optimizing database applications and queriesManaging, maintaining, and securing Oracle databases
Required SkillsSQL, PL/SQL, performance tuning, application developmentDatabase installation, backup/recovery, security, performance monitoring
CertificationsOracle Certified Professional (OCP), Oracle Certified Expert (OCE)Oracle Certified Associate (OCA), Oracle Certified Professional (OCP)
Work EnvironmentDevelopment teams, software projects, application-focusedDatabase operations, system administration, IT infrastructure

While both roles require Oracle certifications and involve working with Oracle databases, the Senior Oracle Database Developer primarily focuses on developing and optimizing database applications, whereas the Oracle Database Administrator manages the overall health, security, and performance of the databases. Understanding these distinctions helps employers and professionals identify the right role for their skills and career goals.

What cities in Ontario are hiring for Senior Oracle Database Developer jobs?

Cities in Ontario with the most Senior Oracle Database Developer job openings:

Infographic showing various Senior Oracle Database Developer job openings in Ontario as of August 2026, with employment types broken down into 51% Full Time, 7% Temporary, and 42% Contract. Highlights an 70% In-person, and 30% Remote job distribution, with an average salary of $130,264 per year, or $62.6 per hour.

Senior Database Administrator

Canadian Nuclear Laboratories LTD

Chalk River, ON

Full-time

Retirement, PTO

Re-posted 25 days ago

Job description

Are you looking for a new and challenging opportunity? We are looking for a Senior Database Administrator to design, develop and maintain CNL's database environments, monitor standards and procedures, and integrate systems through database design. Do you have experience providing database support for engineering analysis, business and scientific systems and ERP applications such as Oracle eBusiness Suite? If so, apply now! This role will be responsible for the deployment, troubleshooting and quality assurance of databases and database applications being deployed into the CNL Information Technology ecosystems.
What you will be doing!
  • Installing database servers / databases, database patches and database upgrades and applications on servers.
  • Performing routine administrative and maintenance tasks for the database environments/servers (e, g, backups and recovery, database refreshes, data fixes).
  • Monitoring development, test and production databases to identify and report any backups, performance, space usage and security issues and recommend solutions.
  • Maintaining the integrity and availability of the production database environments.
  • Completing incident tickets as related to performance and failures.
  • Providing first and second level database support.
  • Reviewing "Requests for Changes" to implement applications and database changes in the development, test, training and production environments.
  • Ensuring that the deployments follow the properly defined Deployment, Change Management and Quality Assurance processes.
  • Ensuring that applications or databases are deployed to development, test and production with proper licensing.
  • Working closely with all IT departments on projects to identify, evaluate and approve database requirements as needed.
  • Actively participating in a Project Team to identify the technical requirements and specifications for any new databases to be installed. This includes reviewing the project proposal and making recommendations on hardware, software and licensing.
  • Providing consultation and input into, database server sizing, database design and capacity planning for current and new databases and applications.
  • Assisting developers in optimizing code to reduce database impact
  • Other duties as assigned by your manager
What we are looking for:
  • Education
    • Completed post-secondary education in a related field: database administration, software development, computer science.
  • Experience
    • Experience building, supporting, and deploying databases in a number of environments.
    • Experience in troubleshooting database issues, performing database tuning and backups.
    • Experience testing database solutions and making recommendations for improvement.
    • Experience managing/monitoring Oracle EBS 12.2.X
    • Experience working with Oracle Cloud Infrastructure
  • Knowledge, Skills & Abilities
    • Ability to manage multiple tasks and assignments managing ever changing priorities
    • Ability to work within project teams with a variety of other technical resources
    • Comfortable to make recommendations on proposed solutions and test various scenarios to ensure solutions are robust
    • Effective verbal and written communication skills to persuade, influence or educate various audiences (e.g., Management or Executive level reporting/presentations, vendors, community stakeholders, business unit managers, project teams, etc)
    • Comprehensive knowledge of generally accepted database administration principles; database audit principles; database tuning and database backup principals
  • Security clearance Eligibility Required
    • Level 2 Secret which has a minimum requirement of 7 years of verifiable history in Canada, Australia, New Zealand, United States and/or the United Kingdom. CNL implements security screening in accordance with the Treasury Board of Canada Secretariat "Standard on Security Screening" and the "Policy on Government Security".

Working Conditions:

  • Working schedule: Five (5) days per week, seven and a half (7.5) hours per day for a thirty-seven and a half (37.5) hour work week.

Why CNL?

Does the idea of working with a dynamic team across Canada to advance nuclear science and technology for a clean and secure world excite you? At CNL, we're reinventing ourselves to be industry leaders-pioneering solutions to the problems that matter most.

From building the next generation of clean nuclear and hydrogen energy technologies, to developing targeted cancer treatments, to continuing our global leadership in environmental remediation-we are driven by impact, innovation, and purpose.

What We Offer: A Total Rewards Package

We believe in taking care of our people. Here's what you can expect as part of our team:

  • Paid time off: vacation, sick, personal, and floater days
  • Benefits effective Day One - no waiting period
  • Tuition support to help you keep learning and growing
  • A defined-benefit pension plan or a defined-contribution pension plan, depending on your employee group, to support your longterm financial security

Do Our Priorities Resonate with You?

  • Delivering clean energy for today and tomorrow
  • Restoring and protecting the environment
  • Contributing to the health of Canadians

If so, you'll feel right at home at CNL!

Location: Hybrid

Located in the heart of the Ottawa Valley, our Chalk River site offers a beautiful natural setting with forests, lakes, and wildlife right at your doorstep. Surrounding communities such as Deep River, Petawawa, and Pembroke provide access to excellent recreation and a great quality of life.
Please note: This is a hybrid position, with a combination of remote work and onsite presence at our Chalk River Laboratory, Ontario.

Our Commitment to Equity, Diversity & Inclusion

At CNL, we are committed to fostering an environment that promotes equity, diversity, and inclusion. We celebrate and welcome employees, stakeholders, and partners of all backgrounds and identities. Click here to read all about it!

We are proud to uphold a workplace culture grounded in our Core Values:

  • Respect
  • Teamwork
  • Accountability
  • Safety
  • Integrity
  • Excellence

These values drive our employment practices and ensure meaningful career development opportunities and accommodations for all employees.

CNL is an equal opportunity employer. If you require accommodation during any phase of the hiring process, please let us know via jobs@cnl.ca. All requests will be handled with confidentiality.

CNL operates on sites located on the traditional lands, waterways and ceded and unceded territories of Indigenous peoples. CNL recognizes and affirms all First Nations, Metis communities and Inuit in this land we now know as Canada. We acknowledge, respect and seek to better understand Indigenous history, rights and title on the lands where we work and develop projects. We honour and respect the importance of the relationship between Indigenous peoples and their lands, waters and territories.

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Employment Type: Full-Time

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