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Senior Java Developer Jobs in Oakville, ON (NOW HIRING)

Capgemini

Java Full-stack Developer

Mississauga, ON · On-site

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

Capgemini

Java Full-stack Developer

Mississauga, ON · On-site

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

Teranet

Angular/Java Developer

Toronto, ON · On-site

CA$104K - CA$115K/yr

To learn more about who we are, visit our website: www.teranet.ca About the Role We are seeking an analytically driven Angular/Java Developer to join our high-performing Systems Development Team. You ...

Scotiabank

Software Developer(Java)

Toronto, ON · On-site

Oracle Certified Java Developer certification will be an asset. * Technical Knowledge of event driven architecture (Kafka, Kafka connectors, Kafka brokers) * 3-5 years of working experience in the ...

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Senior Java Developer information

See Oakville, ON salary details

$61.2K

$113.3K

$155.9K

How much do senior java developer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for senior java developer in Oakville, ON is $113,345.00, according to ZipRecruiter salary data. Most workers in this role earn between $96,061.00 and $128,232.00 per year, depending on experience, location, and employer.

What is the difference between Senior Java Developer vs Java Software Engineer?

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are some common challenges Senior Java Developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

What are the key skills and qualifications needed to thrive as a Senior Java Developer, and why are they important?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What are Senior Java Developers?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.
What job categories do people searching Senior Java Developer jobs in Oakville, ON look for? The top searched job categories for Senior Java Developer jobs in Oakville, ON are:
What cities near Oakville, ON are hiring for Senior Java Developer jobs? Cities near Oakville, ON with the most Senior Java Developer job openings:
Senior Java Developer jobs near you
Senior Full Stack Java Developer - Assistant Vice President

Senior Full Stack Java Developer - Assistant Vice President

Citigroup Inc.

Mississauga, ON • On-site

$90 - $120/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Job Description

The Senior Full Stack Java 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 and programming activities.

Responsibilities
  • Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements.
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards.
  • 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.
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions.
  • Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary.
  • Appropriately assess risk when business decisions are made, demonstrating particular 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.
Recommended Qualifications
  • 5+ years of proven software development experience, specializing in Java, JavaScript framework like React, Spring Boot, and Oracle.
  • Modern Application Development: In-depth knowledge of modern application architecture principles.
  • Clear understanding of Data Structures and Object-Oriented Principles using Java.
  • Practical experience with Artificial Intelligence (AI) tools for enhancing development workflows.
  • Proficiency in Microservices frameworks (e.g., Spring Boot), Event-Driven Services, and Cloud-Native Application Development.
  • Multiple years of experience on Service Oriented and Microservices architectures, including REST and GraphQL implementations.
  • Full Stack Proficiency: Demonstrated ability to design, develop, and maintain both front-end and back-end components of robust web applications.
  • Front-End Development: Strong expertise in developing intuitive user interfaces using contemporary JavaScript frameworks (e.g., React), HTML5, and CSS.
  • Back-End Development: Solid experience in developing server-side logic and APIs using languages such as Java, Python, or similar.
  • Database Expertise: Comprehensive knowledge of SQL and PL/SQL, with a deep understanding of Relational Database Management Systems (RDBMS), particularly Oracle.
  • API Development: Proven capability in designing, developing, and implementing high-performance RESTful APIs leveraging appropriate frameworks and technologies.
  • CI/CD and DevOps: Proficiency with Continuous Integration/Continuous Deployment (CI/CD) pipelines and tools for building (e.g., Maven, Gradle) and deploying code (e.g., Docker, Jenkins, OpenShift).
  • Experience with AWS is considered a significant advantage.
  • Agile Methodologies: Practical experience working within Agile development methodologies and utilizing project management tools such as JIRA.
Education
  • Bachelor’s degree/University degree or equivalent experience.
  • Master’s degree preferred.

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.

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