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Senior Java Software Developer Jobs in Ontario (NOW HIRING)

Virtusa

Senior Java Developer

Mississauga, ON · On-site

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable ... software development Strong proficiency in Java (Java 17 ) Experience with Spring / Spring Boot ...

Virtusa

Senior Java Developer

Mississauga, ON · On-site

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable ... software development Strong proficiency in Java (Java 17 ) Experience with Spring / Spring Boot ...

NearSource

Senior JAVA Backend Developer

Toronto, ON · Remote

CA$80 - CA$90/hr

Senior Java Backend Developer Location: 100% Remote, Canada Experience: 7 to 10 Years Employment ... Must-Have Skills * 7 to 10 years of professional software engineering experience. * Strong backend ...

Citi

Drive DevOps excellence at Citi as a Senior Java DevOps Lead. Shape strategies for improved ... This role requires a leader with a strong foundation in software development and infrastructure ...

StackandCo

Senior Java Developer

Galway, NY · On-site

\n \n \n \n \n Our client in Galway are beginning to hire Java Engineers (up to senior level) to help the team build out their globally renowned and ever\-present SAAS offering on a permanent basis.

StackandCo

Minimum 5 years experience as a Senior Engineer \n * Excellent communication skills \- both written and verbal \n * Experience with Java 11 \n * Experience with TDD and CI\/CD \n * Experience in ...

StackandCo

\n \n \n \n \n We are searching for a Senior Java Developer to join a large organisation in the Dublin area. \n \n \n \n \n \n This is a unique opportunity to work with some of the newest tech on the ...

StackandCo

Minimum 5 years experience as a Senior Engineer \n * Experience with Java 11 \n * Strong experience with Spring frameworks \n * Experience with TDD and CI\/CD \n * Experience in financial services ...

StackandCo

Software Developer - Java

Galway, NY · On-site

Follow best practices and guidance provided by the Senior developer \n * Include unit tests in the ... Experience with Lean \/ Agile development methodologies and trouble shooting java. \n * Must have ...

Deloitte

Senior Java Developer - Operate

Toronto, ON · On-site

CA$72K - CA$138K/yr

... Senior Java Developers to join our team on a 1-year fixed term. As a Java Developer at Deloitte ... software solutions for a leading North American Bank. This long-term staff augmentation role ...

StackandCo

... Centre on a Senior Software Engineer vacancy (multiple available). \n \n \n \n \n \n We need ... Highly skilled Software Engineer, ideally 7+ years' experience primarily in Java (flexible) \n

StackandCo

... on a Senior Software Engineer vacancy. \n \n \n \n \n \n This is a nice opportunity to join a ... Highly skilled Software Engineer, ideally 7+ years' experience primarily in Java (flexible) \n

Konrad

Senior Java Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

Working within the software development team, your duties will require you to assist in the ... Very strong Java programming skills utilizing Spring Boot or Spring Cloud * Front end JS framework ...

StackandCo

We have a requirement for permanent Java Software Engineer to join their growing Development team in Dublin. \n \n \n \n \n \n By being apart of this growing team you will write clean and efficient ...

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All JobsJava Software Developer JobsSenior Java Software Developer JobsSenior Java Software Developer Jobs in Ontario

Senior Java Software Developer information

See Ontario salary details

$86.5K

$135K

$262.5K

How much do senior java software developer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for senior java software developer in Ontario is $134,992.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,000.00 and $138,000.00 per year, depending on experience, location, and employer.

What is a senior Java software developer?

A Senior Java Software Developer is an experienced professional responsible for designing, developing, and maintaining complex software applications using the Java programming language. They typically lead development teams, mentor junior developers, and contribute to architectural decisions. Senior Java Developers are expected to have a deep understanding of Java frameworks, best coding practices, and software development methodologies. They also collaborate with stakeholders to deliver robust, scalable, and efficient software solutions.

What are some common challenges senior Java software developers face when leading projects, and how can they effectively address them?

Senior Java Software Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members, managing project timelines, and ensuring code quality across large, distributed systems. To address these, it’s crucial to establish clear communication channels, implement robust code review processes, and leverage agile methodologies for project management. Additionally, staying up-to-date with the latest Java frameworks and best practices helps in making informed architectural decisions and streamlining development workflows.

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

To thrive as a Senior Java Software Developer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and experience with frameworks like Spring, typically backed by a bachelor's degree in computer science or a related field. Familiarity with tools such as Git, Maven, Jenkins, and cloud platforms, along with relevant certifications like Oracle Certified Professional Java SE, is often required. Strong problem-solving abilities, effective communication, and leadership skills help in mentoring teams and collaborating on complex projects. These skills ensure the delivery of robust, scalable software solutions and foster innovation within development teams.

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

AspectSenior Java Software DeveloperJava Software Engineer
Required CredentialsBachelor's degree in Computer Science or related field; extensive Java experience; certifications like Oracle Java CertificationBachelor's degree in Computer Science or related field; Java programming skills; certifications are common but not mandatory
Work EnvironmentDevelops complex applications, mentors junior staff, leads projectsDesigns and develops Java applications, collaborates with teams, implements features
Employer & Industry UsageUsed across tech companies, finance, healthcare, and enterprise sectorsCommon in software development firms, IT departments, and tech startups

The main difference between a Senior Java Software Developer and a Java Software Engineer lies in experience level and responsibilities. Senior developers often lead projects and mentor others, while Java Software Engineers focus on designing and implementing Java applications. Both roles require strong Java skills and similar educational backgrounds, but seniority involves additional leadership and project management duties.

What cities in Ontario are hiring for Senior Java Software Developer jobs? Cities in Ontario with the most Senior Java Software Developer job openings:
What are popular job titles related to Senior Java Software Developer jobs in ON? For Senior Java Software Developer jobs in ON, the most frequently searched job titles are:
Senior Java Software Developer jobs near you
Infographic showing various Senior Java Software Developer job openings in Ontario as of August 2026, with employment types broken down into 91% Full Time, 6% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $134,992 per year, or $64.9 per hour.

Senior Java Developer

Virtusa

Mississauga, ON • On-site

Full-time

Re-posted 10 days ago

Job description

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and modern backend / frontend technologies, a strong understanding of system design, and the ability to mentor junior engineers while collaborating with cross-functional teams. Key Responsibilities Design, develop, test, and maintain high-quality Java applications and services Lead technical design discussions and contribute to architectural decisions Build and optimize RESTful APIs, microservices, and backend systems Ensure application performance, scalability, reliability, and security Write clean, maintainable, and well-documented code following best practices Conduct code reviews and provide constructive feedback to team members Mentor junior engineers and support team knowledge sharing Collaborate with product managers, QA, DevOps, and other stakeholders Troubleshoot complex technical issues in development and production environments Participate in Agile/Scrum ceremonies and contribute to continuous improvement Required Qualifications Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience) 7 years of professional experience in software development Strong proficiency in Java (Java 17 ) Experience with Spring / Spring Boot Solid understanding of object-oriented design, design patterns, and SOLID principles Experience building RESTful APIs and backend services Strong knowledge of SQL and relational databases (e.g., PostgreSQL, Oracle, MySQL) Familiarity with Git and modern CI/CD pipelines Experience working in Agile development environments Excellent problem-solving, communication, and collaboration skills Preferred Qualifications Experience with microservices architecture Exposure to cloud platforms (AWS, Azure, or GCP) Experience with containers and orchestration (Docker, Kubernetes) Knowledge of message queues / streaming platforms (Kafka, RabbitMQ) Familiarity with NoSQL databases (MongoDB, DynamoDB, Cassandra) Understanding of security best practices and authentication (OAuth2, JWT) Experience supporting high-availability or mission-critical systems

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About Virtusa

Sourced by ZipRecruiter

We are builders, makers, and doers with the technical skills and domain expertise to transform your business at scale and speed without disruption. Our unique Engineering First approach blends deep industry expertise and empowered, agile teams, to create holistic solutions that seamlessly move the business forward. We help clients engage with new technology paradigms to creatively build solutions that drive them to the forefront of their industries.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Westborough, MA, US

Year founded

1996

Social media

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