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Senior Java Software Developer Jobs in Mississauga, ON

Poly Services Group

Senior Java Developer

Toronto, ON · On-site

SENIOR JAVA SOFTWARE DEVELOPER Location: Toronto, ON (uptown) Industry: Technology Type: Permanent WHAT IS THE OPPORTUNITY. Our client is an 18-year-old SaaS developer and recognized leader of ...

Hire DigITalent

Senior Java Developer

Toronto, ON · Hybrid

Minimum of 7 years of professional experience in Java software development. * Strong expertise in Object-Oriented Programming (OOP) and Functional Programming paradigms. * Experience working in an ...

Targeted Talent

Senior Java Developer

Toronto, ON · On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Apply software engineering fundamentals such as data structures, testing and debugging to ensure ...

Targeted Talent

Senior Java Developer

Toronto, ON · On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Apply software engineering fundamentals such as data structures, testing and debugging to ensure ...

Luxoft

Senior Java Software Engineer

Toronto, ON · On-site

Design software solutions by interacting with portfolio managers, traders, operations staff and ... Strong Java experience in enterprise environments + Knowledge in Python (2 years) * Experience with ...

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 ...

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 ...

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 ...

Scotiabank

Java Developer - Java/React

Toronto, ON · On-site

Reporting to the Senior Manager Development, this Sr. Software Developer role is responsible for ... Must have technical working experience with Core Java (Version 8 or higher)/Java, JDK17+

Atyeti Inc

Sr Java developer

Toronto, ON · On-site

A Java Developer designs, develops, tests, and maintains scalable Java-based applications (web, enterprise, mobile) by writing clean code, collaborating with teams, and integrating with databases and ...

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Senior Java Software Developer information

See Mississauga, ON salary details

$81.5K

$127.2K

$247.3K

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

As of Jun 25, 2026, the average yearly pay for senior java software developer in Mississauga, ON is $127,159.00, according to ZipRecruiter salary data. Most workers in this role earn between $110,210.00 and $129,992.00 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, and why are they important?

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 near Mississauga, ON are hiring for Senior Java Software Developer jobs? Cities near Mississauga, ON with the most Senior Java Software Developer job openings:
Senior Java Software Developer jobs near you

Senior Java Developer

Poly Services Group

Toronto, ON • On-site

Other

Posted 14 days ago

Job description

Job Description The Role: SENIOR JAVA SOFTWARE DEVELOPER Location: Toronto, ON (uptown) Industry: Technology Type: Permanent WHAT IS THE OPPORTUNITY. Our client is an 18-year-old SaaS developer and recognized leader of encryption solutions for a range of markets - think Public Sector, Financial Services, Healthcare, and Legal. Some of the problems they try to solve are developing highly scalable products following the best development practices, improving the usability and user experience and ensuring that their enterprise customers get an uninterrupted service 24/7.

We are currently looking for a passionate and versatile Senior Java Software Developer who is able to learn new skills quickly, and who can thrive in a fast-paced environment along with a team of talented developers. WHAT YOU'LL DO IN A DAY: Design, develop, test, maintain and enhance software Work with stakeholders to clarify and define feature requirements and take ownership over projects. WHAT YOU BRING TO THE ROLE: Bachelor's Degree in Engineering, Computer Science, Mathematics or Science or relevant education and experience 6+ years of software development experience Knowledge and experience in development and testing best practices including minimum 3 years' experience using Spring Framework Hands on experience developing application on the Cloud and in containers Mobile application development experience (Android and IOS) Excellent verbal and written communication skills Strong organizational skills and highly detail oriented Collaborative, who is able to work well in a team environment.

Experience with PKI, Cryptography algorithms, Java Cryptographic libraries, JavaScript and UI development and design is an asset Email standards is an asset. We thank all candidates who apply for this role but only those shortlisted will be contacted. If you do require any sort of accommodation during the recruitment process for this role, please contact us directly.

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