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Java Developer Java Jobs in Barrie, ON (NOW HIRING)

Use and enhance our DevOps practices and tools to enforce software guardrails, increase automation ... Hands-on expertise with Python, AWS Lambda, Java and APIs * Experience with developing AI bots ...

Use and enhance our DevOps practices and tools to enforce software guardrails, increase automation ... Hands-on expertise with Python, AWS Lambda, Java and APIs * Experience with developing AI bots ...

Proficiency in modern programming languages such as Go (Golang), TypeScript, Python, JavaScript, C#, Java, and/or C++. * Experience developing scalable APIs, backend services, and distributed ...

Diagnoses technical problems and recommends engineering solutions * Works with JANAs product and ... Hands-on ability to code in Python, JAVA, C#, or related languages * Pipeline operations or risk ...

Diagnoses technical problems and recommends engineering solutions * Works with JANA's product and ... Hands-on ability to code in Python, JAVA, C#, or related languages * Pipeline operations or risk ...

Diagnoses technical problems and recommends engineering solutions * Works with JANA's product and ... Hands-on ability to code in Python, JAVA, C#, or related languages * Pipeline operations or risk ...

Java Developer Java information

What are Java Developers?

Java Developers are software professionals who design, develop, and maintain applications using the Java programming language. They work on a wide range of projects, from web and mobile applications to enterprise-level systems. Their responsibilities often include writing clean code, debugging, collaborating with other team members, and ensuring applications are secure and scalable. Java Developers are also expected to stay updated with the latest Java technologies and frameworks to deliver efficient solutions.

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

AspectJava Developer JavaJava Software Engineer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science, Java certifications
Work EnvironmentDevelopment teams, tech companies, startupsDevelopment teams, tech companies, startups
Industry UsageSoftware development, web applications, enterprise solutionsSoftware development, web applications, enterprise solutions
Common Search IntentJob roles, skills, salary infoJob roles, skills, salary info

Java Developer Java and Java Software Engineer roles often overlap in skills and work environment. Both require similar credentials and are used interchangeably in the industry. The main difference lies in the job title emphasis: 'Developer' focuses on coding and building applications, while 'Software Engineer' may imply a broader scope including design and architecture. Candidates should review specific job descriptions to understand the expectations for each role.

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

To thrive as a Java Developer, you need strong programming skills in Java, a solid understanding of object-oriented design, and typically a degree in computer science or a related field. Familiarity with frameworks like Spring or Hibernate, version control systems such as Git, and build tools like Maven or Gradle is essential, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Effective problem-solving, teamwork, and good communication skills help Java Developers excel in collaborative and dynamic environments. These technical and soft skills are crucial for building robust, maintainable software solutions that meet business requirements.

How does a Java Developer typically collaborate with other teams during the software development lifecycle?

Java Developers often work closely with cross-functional teams, including front-end developers, QA testers, project managers, and sometimes clients. They participate in code reviews, contribute to design discussions, and coordinate with DevOps professionals to ensure smooth deployment processes. Effective communication and teamwork are essential, as Java Developers must translate technical requirements, troubleshoot issues, and ensure their code integrates seamlessly with other system components. This collaborative environment not only enhances project outcomes but also provides opportunities to learn from different disciplines.
What cities near Barrie, ON are hiring for Java Developer Java jobs? Cities near Barrie, ON with the most Java Developer Java job openings:
Infographic showing various Java Developer Java job openings in Barrie, ON as of July 2026, with employment types broken down into 79% Full Time, 9% Part Time, 1% Temporary, and 11% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution.
Lead Software Engineer (JAVA, API)

Lead Software Engineer (JAVA, API)

Sun Life Financial

King, ON

Full-time

Posted 13 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

88th of 299 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:

Lead Software Engineer - Squad Tech Lead

Our teams are dedicated to supporting, enhancing and discovering new ways to help our clients achieve lifetime financial security, live healthier lives and connect with us. Through innovation and collaboration, we're striving to deliver best-in-class technology solutions for our digital clients.

We are currently seeking a Squad Tech Lead to provide technical design, development, support and analysis for large-scale applications and systems in a new agile team within the Canadian IT Platforms and Engineering team. This permanent role combines hands-on technical work with leadership responsibilities. The successful candidate is a team player with excellent technical and problem-solving skills, is aware of industry trends, questions the status quo and can identify and propose alternatives. Come join us as we continue to intensify the focus on our digital journey, building APIs and improving our client experience.

What will you do?

  • Collaborate with skilled Agile team members to understand user needs and design, develop and deliver high quality web applications that meet those needs
  • Configure and design applications and workflows, using outside the box thinking, to create innovative ways to advance our client first strategy
  • Lead AI-assisted development practices, leveraging GitHub Copilot and other AI coding tools to accelerate development velocity and improve code quality
  • Design, develop, and integrate AI agents and conversational interfaces to enhance application capabilities and deliver intelligent automation solutions
  • Champion secure coding practices and lead efforts to identify, prioritize, and remediate application security vulnerabilities using SAST/DAST tools
  • Conduct security code reviews and ensure compliance with security standards and best practices throughout the development lifecycle
  • Coach, mentor and collaborate with members of the design and development team
  • Provide technical direction and guidance to projects, ensuring risks are mitigated and projects are implemented successfully
  • Establish coding standards and technical best practices across the squad
  • Conduct code reviews and mentor team members on technical excellence
  • Support developers in removing technical blockers and guide technical implementation of user stories and features
  • Communicate technical risks, dependencies, and constraints to stakeholders
  • Participate in planning and refinement sessions with technical perspective and collaborate with Product Owner on technical feasibility and estimates
  • Drive quality standards and testing practices; identify technical debt and propose solutions
  • Monitor system performance and reliability and champion continuous improvement initiatives
  • Contribute to defining timelines and plans; analyze and estimate feasibility, cost, time and scope
  • Ensure coding, testing, debugging, and implementation activities are completed as required
  • Participate in agile ceremonies and support on-call and incident response when needed
  • Represent the squad's technical interests in cross-squad discussions and collaborate with other Tech Leads across squads for consistency

What you need to succeed ?

  • Minimum 8 to 10 years of progressive information technology experience with full application development life cycle and systems integration experience
  • Demonstrated experience leading and mentoring teams of developers
  • Proven experience with AI-assisted development tools, particularly GitHub Copilot, and ability to train teams on effective AI pair programming techniques
  • Hands-on experience designing, developing, and deploying AI agents using agent orchestration platforms
  • Working knowledge of Large Language Models (LLMs), prompt engineering, and integrating AI APIs
  • Experience building conversational interfaces, chatbots, or intelligent automation solutions that enhance user experiences
  • Good application security knowledge with demonstrated experience identifying and remediating security vulnerabilities (OWASP Top 10, SQL injection, XSS, CSRF, authentication/authorization flaws)
  • Hands-on experience with security scanning tools (e.g., SonarQube, Checkmarx, Snyk, Veracode) and implementing security fixes
  • Understanding of secure SDLC practices, threat modeling, and security testing methodologies
  • Expert-level knowledge of Java and Spring Boot
  • Strong experience with Microservices and API Development
  • Advanced understanding and hands-on experience with front-end development, particularly React and Web Accessibility
  • Containerization experience with Docker and Kubernetes
  • Advanced overall understanding of Web applications and server technologies
  • Working experience with middleware technologies, web and web hosting technologies
  • Experience with Kafka
  • Proficiency with SOAP/XML, REST/JSON
  • Experience with Unit testing tools (e.g., JUnit, Mockito, RESTAssured)
  • Hands-on experience using DevOps tools (BitBucket, CDD, Jenkins)
  • Understanding of JavaScript and JQuery
  • Ability and desire to lead with excellent communication skills

Special Requirements

  • Periodic weekend/after-hours work may be required to support project implementations and system upgrades

What's in it for you?

  • We are thrilled to be recognized by Excellence Canada with their top-level certification, the Canada Order of Excellence for Mental Health at Work, for prioritizing employee well-being, fostering a positive work culture, and achieving excellence in mental health.

  • Wellness programs that support the three pillars of your health - mental, physical, and financial

  • The opportunity to move along a variety of career paths with amazing networking potential.

  • As a hybrid organization, you and your leader use business and Client needs to choose where you work, at home or in the office

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:

06/08/2026

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