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Senior Oracle Developer Jobs in Ontario (NOW HIRING)

JDE Developer

Mississauga, ON · On-site

CA$96K - CA$113K/yr

Effectively communicate technical information clearly to senior management OUR IDEAL CANDIDATE; * 5+ years' experience as a JDE Developer * Significant hands-on experience with Oracle JDE Development ...

We are seeking a talented and highly motivated Senior Full Stack .NET Developer to join our team ... Solid experience with relational databases (PostgreSQL, SQL Server, Oracle) including schema design ...

We are seeking a Senior Software Developer to join our Waterloo team. As a vital member of our team ... Solid understanding of Oracle & SQL is an asset. * Experience with CI/CD tools like Jenkins, GitLab ...

\n \n \n \n \n We have a pressing requirement for an experienced Full Stack Developer to join a ... Strong database knowledge, Oracle\/Postgres etc. \n * Excellent communicator \n * REST experience ...

... Sybase and Oracle, exceptional team leadership skills, and a forward-thinking approach to ... You will lead a team of junior developers, providing technical guidance, mentorship, and fostering ...

Showing results 41-60

Senior Oracle Developer information

What is a senior Oracle developer?

Senior Oracle Developers are experienced IT professionals who design, develop, and maintain applications using Oracle databases and related technologies. They are responsible for writing complex SQL queries, PL/SQL scripts, and optimizing database performance. These developers often lead projects, mentor junior team members, and collaborate with business analysts to implement solutions that meet organizational requirements. Their expertise is essential for ensuring the reliability, security, and efficiency of database systems in large enterprises.

What are the key skills and qualifications needed to thrive as a senior Oracle developer?

To thrive as a Senior Oracle Developer, you need advanced expertise in Oracle databases, strong SQL and PL/SQL programming skills, and a background in computer science or a related field. Familiarity with tools like Oracle SQL Developer, Oracle Application Express (APEX), and certifications such as Oracle PL/SQL Developer Certified Associate are highly valued. Excellent problem-solving, analytical thinking, and communication skills help you collaborate effectively and address complex technical challenges. These competencies ensure robust database solutions, optimized performance, and successful project delivery in enterprise environments.

What are some common challenges faced by senior Oracle developers when working on large-scale database projects?

Senior Oracle Developers often encounter challenges related to optimizing database performance, managing complex data migrations, and ensuring data integrity across multiple environments. Collaborating with cross-functional teams, such as data architects and application developers, requires clear communication to translate business requirements into efficient database solutions. Staying updated with Oracle's evolving technologies and best practices is also crucial to maintain secure and scalable systems.

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

AspectSenior Oracle DeveloperOracle Database Administrator
Primary FocusApplication development, SQL coding, PL/SQL programmingDatabase maintenance, performance tuning, security management
Required SkillsSQL, PL/SQL, application design, codingDatabase architecture, backup/recovery, performance optimization
CertificationsOracle Certified Professional (OCP), Developer certificationsOracle Certified Professional (OCP), Database Administrator certifications
Work EnvironmentDevelopment teams, software projectsDatabase operations, system administration

While both roles require Oracle certifications and involve working with Oracle databases, Senior Oracle Developers focus on creating and optimizing applications using SQL and PL/SQL, whereas Oracle Database Administrators manage the overall health, security, and performance of Oracle databases. Understanding these differences helps employers and professionals identify the right role for their needs.

What are the most commonly searched types of Oracle Developer jobs in Ontario?

The most popular types of Oracle Developer jobs in Ontario are:

What are popular job titles related to Senior Oracle Developer jobs in Ontario?

For Senior Oracle Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Senior Oracle Developer jobs in Ontario look for?

The top searched job categories for Senior Oracle Developer jobs in Ontario are:

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

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

Infographic showing various Senior Oracle Developer job openings in Ontario as of August 2026, with employment types broken down into 75% Full Time, 12% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Java Developer, Vice President

Citi

Mississauga, ON

CA$120K - CA$170K/yr

Full-time

Posted 17 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 174 rated banks


Job description

We're currently looking for a high caliber professional to join our team as Senior Java Developer, Vice President. Cross Asset Margin technology teams actively develop and enhance set of strategic systems and services which are regulatory driven and have a direct bearing on how Citi Capital Markets manages risk arising from trading, including both market and counterparty credit risks. We are responsible for calculating margin requirements for OTC bilateral derivatives and optimizing margin requirements for clients by considering offsets across various financial products using models like VaR, SIMM and Credit Stress.

We support traders, salespeople, risk managers, financial controllers and operations staff. The Lead Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis, design and programming activities.

This is a senior technical position responsible for accomplishing results through the management of a team to drive a variety of engineering activities including the design, acquisition and deployment of hardware, software and network infrastructure in coordination with the Technology team. Responsibilities: Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint. Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation.

Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals. Guide team to establish design standard, improving efficiency of development workflow and product rollout. Take ownership of smooth Production releases planning and execution Oversee software quality and system modifications Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary.

Analyze existing operations to identify risks and redundancies Conduct comprehensive assessments to develop solutions Liaise with team members, management to ensure projects are completed to application development and governance standard Keep up-to-date with industry trends and developments Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards Appropriately assess risk when business decisions are made, demonstrating consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. Qualifications: 8+ years of relevant experience in Apps Development role with hand on coding Demonstrated thought leadership in designing complex and distrusted systems In depth knowledge of Java, Spring, Kafka, Distributed Cache/Systems (e.g. Apache Ignite) Hands on experience on relational databases like Oracle Any experience with NoSQL databases like MongoDB is preferred Experience with Python is preferred Great exposure to microservices architecture

API first design thinking and implementation using Rest, websocket and gRPC Experience with building applications on cloud platform such as Docker, Kubernetes or OpenShift Proven implementation of design pattern and enterprise level architecture Strong analytical, troubleshooting and problem-solving skills Excellent verbal and written communication skills Able to work independently and as part of a team Able to multi-task and prioritize tasks effectively. Strong organizational and project management skills UI tech stack knowledge will be advantage Understanding of Risks (Greeks), risk calculation models like VaR/SIMM preferred and ability to work with Quant team is preferred. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: $120,800.00 - $170,800.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above

------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi's EEO Policy Statement and the Know Your Rights poster.


What Citibank employees say

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Benefits

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Workplace

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About Citigroup Inc

Sourced by ZipRecruiter

We live in an increasingly complex world. Companies these days are either born global or are going global at record speed. Business and geopolitics are forging an entirely new dynamic and consumers now expect financial services to be a seamless part of their digital lives. Citi is a bank that’s uniquely positioned for this moment. Through our vast global network and our on-the-ground expertise, we can connect the dots, anticipate change and empathize the needs of our clients and customers in ways that other banks simply cannot. Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We have set expectations for how we must act to bring our mission to life. These expectations are at the heart of our Leadership Principles – we take ownership, we deliver with pride and we succeed together.

Industry

Banking and credit intermediation

Company size

5,001 - 10,000 Employees

Headquarters location

New York City, NY, US