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

Experience in Java (6+ years) in an enterprise environment, covering the whole development life cycle * Knowledge and technical skills in Python 2 years * Must have good communication skills, strong ...

Strong Java experience in enterprise environments + Knowledge in Python (2 years) * Experience with SQL queries, Docker/Kubernetes * Strong cloud experience (AWS) * Strong unit and integration ...

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 ...

Java Backend Developer

Etobicoke, ON · Hybrid

CA$100K - CA$135K/yr

As a Java Back-End Developer at Localcoin, you will be responsible for developing and maintaining functional and stable back end applications for our company, ensuring system consistency and ...

As a Sr. Consultant, Back End Developer, you will build, implement and maintain , flexible and ... This role requires Java (Java EE/Java SE) development ability. Also, having good knowledge of ...

We are seeking a skilled Java Backend Developer to join our team supporting a major banking client in Toronto. The ideal candidate will have hands on experience with modern backend technologies and ...

Commercial Banking Engineering is seeking a skilled Java Developer with extensive experience in Java, Struts, SQL, REST APIs, SOAP services, and other backend Java technologies. The ideal candidate ...

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Senior Java Developer information

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 are the most commonly searched types of Java Developer jobs in Toronto, ON? The most popular types of Java Developer jobs in Toronto, ON are:
What are popular job titles related to Senior Java Developer jobs in Toronto, ON? For Senior Java Developer jobs in Toronto, ON, the most frequently searched job titles are:
What job categories do people searching Senior Java Developer jobs in Toronto, ON look for? The top searched job categories for Senior Java Developer jobs in Toronto, ON are:
What cities near Toronto, ON are hiring for Senior Java Developer jobs? Cities near Toronto, ON with the most Senior Java Developer job openings:

Senior Software Engineer - Java

Sun Life Financial

King, ON • On-site, Remote

Full-time

Posted 6 days ago


Sun Life Assurance Company of Canada rating

8.6

Company rating: 8.6 out of 10

Based on 18 frontline employees who took The Breakroom Quiz

73rd of 260 rated insurance


Job description

You are as unique as your background, experience and point of view. Here, you'll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your potential and soar to new heights. Every day, you'll have new and exciting opportunities to make life brighter for our Clients - who are at the heart of everything we do. Discover how you can make a difference in the lives of individuals, families and communities around the world.

Job Description:

About the role:

The e-Business team in Application Operations Support (AOS) provides operations and support services to ensure reliability of IT applications. Through innovation, continuous improvement, and collaboration, we strive to find new and better ways to bring value to Sun Life.

We are looking for a highly motivated Senior Software Engineer with at least 10 years of Java application support, analysis, and development experience. The successful candidate will have strong technical and problem-solving skills and the ability to work independently. This unique opportunity offers a dynamic space and a chance to collaborate with multiple business units.

What you will do?

  • As part of the Security team review, assess, triage, communicate, and resolve issues in production environments at the application level.
  • Provide ongoing support of Java based applications in Production and test environments including responding to Service requests, Incident & Problem analysis, Service restoration and recovery, Security vulnerability remediation, Audits, and reporting as necessary.
  • Interface with other Software Engineers, Business Systems Analysts, and other stakeholders to deliver high quality solutions.
  • Identify and participate in continuous improvement opportunities, monitoring system or metrics set-up, system renewal, stability, upgrade, and Disaster Recovery projects.
  • Participate in design, develop, test and debug programs for Java services. Deployment is done using Kubernetes containers.

What do you need to succeed:

  • Degree in Computer Science, Computer Engineering, or equivalent discipline
  • 10+ years of information technology experience in Java application support and development
  • 10+ years experience in:
    • Java, JavaScript & web development languages like HTML, XML, CSS
    • Java Enterprise Edition (J2EE)technologies such asServlet,JDBC andJSP
    • Spring framework
  • 4+ years experience in:
    • ReactJS/ React.js -> Angular
    • Container technologies - Kubernetes, Docker
    • Web Security Knowledge (OWASP top 10)

Preferred Skills:

  • Collaboration and teamwork
  • Continuous learning mindset
  • Ability to work in a dynamic environment with changing priorities
  • Strong analysis, debugging and problem-solving skills
  • Solid written and verbal communication skills

Learn on the job:

  • Web services and frameworks such as SOAP, REST API, Java APIs, JSON, Spring Boot
  • Database technologies like SQL, Oracle, POSTGRES
  • DevOps tools - Jenkins, Artifactory, Bitbucket/Git, Gradle, Maven, CDD, Ansible
  • Multi-Factor Authentication (MFA)
  • Exposure to Agile framework (Kanban, Scrum)
  • Experience working with cloud hosted applications / servers on AWS.
  • Exposure to team collaboration tools like Confluence, JIRA, MS Teams
  • Experience with Kafka and light car proxy
  • Knowledge of Middleware technologies such as WebSphere/WebLogic

Notes/Unique requirements:

  • The role includes on-call and after-hours support on a team rotation basis.
  • As a condition of the role, the successful candidate must obtain a Government of Canada Reliability Status security clearance through Sun Life before the start date.

What's in it for you:

  • An environment of continuous learning and improvement
  • A friendly, collaborative, and inclusive culture in an interactive team environment
  • Pension, stock and savings programs to help build and enhance your financial security
  • Working together, sharing common values, and encouraging growth & achievement.

#LI-Hybrid #LI-remote

The Base Pay range is for the primary location for which the job is posted. It may vary depending on the work location of the successful candidate or other factors. In addition to Base Pay, eligible Sun Life employees participate in various incentive plans, payment under which is discretionary and subject to individual and company performance. Certain sales focused roles have sales incentive plans based on individual or group sales results.

Diversity and inclusion have always been at the core of our values at Sun Life. A diverse workforce with wide perspectives and creative ideas benefits our Clients, the communities where we operate and all of us as colleagues. We welcome applications from qualified individuals from all backgrounds.

Persons with disabilities who need accommodation in the application process, or those needing job postings in an alternative format, may e-mail a request to thebrightside@sunlife.com.

We are proud to be a hybrid organization that offers our employees the choice and flexibility to work from both the office and virtually based on the needs of the business, our Clients and you! Several work options are available and can be discussed throughout the selection process depending on the role requirements and individual needs.

We may use artificial intelligence to support candidate sourcing, screening, interview scheduling.

We thank all applicants for showing an interest in this position. Only those selected for an interview will be contacted.

Salary Range:

90,000/90 000 - 140,000/140 000

Job Category:

IT - Application Development

Posting End Date:

11/06/2026

What Sun Life Assurance Company of Canada employees say

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