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Senior Java Engineer Jobs in Ontario (NOW HIRING)

StackandCo

\n \n \n Senior Java Engineer \- \/AWS \n \n * Dublin\/ Galway - Remote\/WFH \n * Long Term Contract \n * Negotiable Day Rate \n Leading Fintech\/ Financial Services organisation is looking for a ...

Collabera Canada Inc

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Senior Java Engineer (React)

Toronto, ON · On-site

CA$70 - CA$120/hr

Title: Senior Java Engineer Type: 6-month contract + opportunity to extend Location: 1 Queen Street East, Toronto Work Model: Hybrid (4 days on-site) Day-to-Day Responsibilities * Refactor and ...

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 complex problems? If so, we have an exciting opportunity for you! We are looking for a Senior Java ...

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 complex problems? If so, we have an exciting opportunity for you! We are looking for a Senior Java ...

StackandCo

\n \n \n \n \n Our client has a requirement for a highly experienced Java Developer for a contract position in Dublin. You will be joining a highly collaborative team offering you the opportunity to ...

Virtusa

Senior Java Developer

Mississauga, ON · On-site

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 ...

Virtusa

Senior Java Developer

Mississauga, ON

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 ...

Virtusa

Senior Java Developer

Mississauga, ON

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 ...

Targeted Talent

Senior Java Developer

Kitchener, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

Targeted Talent

Senior Java Developer

Waterloo, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

Targeted Talent

Senior Java Developer

Waterloo, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

Targeted Talent

Senior Java Developer

Kitchener, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

Targeted Talent

Senior Java Developer

Ottawa, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

Targeted Talent

Senior Java Developer

Ottawa, ON · Remote

We are looking for an experienced Senior Java Developer for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that ...

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

\n \n \n \n \n Senior Java Developer required for a Cybersecurity organisation in Dublin, working ... engineer who is interested in working with some of the newest tech available. \n \n \n \n \n \n ...

StackandCo

\n \n \n \n \n Senior Java Developer required for a Cybersecurity organisation in Dublin, working ... engineer who wants to work with some of the newest tech available. \n \n \n \n \n \n This is a ...

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Showing results 1-20

All JobsJava Engineer JobsSenior Java Engineer JobsSenior Java Engineer Jobs in Ontario

Senior Java Engineer information

See Ontario salary details

$77.5K

$133.8K

$193K

How much do senior java engineer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for senior java engineer in Ontario is $133,849.00, according to ZipRecruiter salary data. Most workers in this role earn between $113,000.00 and $150,000.00 per year, depending on experience, location, and employer.

What is a senior Java engineer?

Senior Java Engineers are experienced software developers who specialize in designing, developing, and maintaining applications using the Java programming language. They often lead development teams, architect solutions, and ensure that software meets both technical and business requirements. Their responsibilities also include code reviews, mentoring junior developers, and optimizing application performance. Typically, they have several years of experience and a deep understanding of Java frameworks and best practices.

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

To thrive as a Senior Java Engineer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and a degree in computer science or related field. Experience with frameworks like Spring, Hibernate, build tools such as Maven or Gradle, and familiarity with cloud platforms and CI/CD systems are typically required. Excellent problem-solving abilities, leadership, and effective communication help you guide teams and collaborate with stakeholders. These skills are crucial for delivering robust, scalable software solutions and mentoring junior engineers in complex development environments.

What are some common challenges senior Java engineers face when working on large-scale enterprise applications?

Senior Java Engineers often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining high performance under heavy loads. They are also responsible for implementing robust security practices and integrating new technologies without disrupting existing systems. Effective collaboration with cross-functional teams and mentoring junior developers are crucial aspects of the role, as these responsibilities help maintain code quality and project momentum.

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

AspectSenior Java EngineerJava Developer
Required CredentialsBachelor's in Computer Science, Java certifications (e.g., Oracle Certified Professional)Bachelor's in Computer Science or related field, Java certifications optional
Work EnvironmentDesigning, developing, and maintaining complex Java applications, often in team leadership rolesDeveloping Java applications, focusing on coding and implementation
Industry UsageUsed across finance, tech, and enterprise sectors for large-scale projectsCommonly employed in software development firms, startups, and tech companies

While both roles involve Java programming, Senior Java Engineers typically handle complex system design, mentorship, and project leadership, whereas Java Developers focus more on coding and implementing features. The senior role often requires more experience and certifications, with a broader scope of responsibilities.

What cities in Ontario are hiring for Senior Java Engineer jobs?

Cities in Ontario with the most Senior Java Engineer job openings:

What are popular job titles related to Senior Java Engineer jobs in ON?

For Senior Java Engineer jobs in ON, the most frequently searched job titles are:

Senior Java Engineer jobs near you
Infographic showing various Senior Java Engineer job openings in Ontario as of August 2026, with employment types broken down into 85% Full Time, 12% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution, with an average salary of $133,849 per year, or $64.4 per hour.

Senior Java Software Engineer

StackandCo

Remote

Full-time

Re-posted 20 days ago

Job description

\n <\/head>\n \n

Senior Java Engineer \- \/AWS<\/u><\/b><\/span><\/span><\/span><\/span>
<\/p>


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    \n
  • Dublin\/ Galway - Remote\/WFH
    <\/li>\n
  • Long Term Contract
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  • Negotiable Day Rate
    <\/li>\n <\/ul>

     <\/span><\/span><\/span><\/span>
    <\/p>


    <\/p>

    Leading Fintech\/ Financial Services organisation is looking for a number of experienced Senior Java Engineers to join the team on a long\-term contract with full time WFH\/ Remote options. AWS experience a distinct advance however, strong engineer may still apply as there will be an opportunity to get cloud\/AWS experience.<\/span><\/span><\/span><\/span>
    <\/p>


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    Candidates must be based in Ireland with full work rights.<\/span><\/span><\/span><\/span>
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     <\/span><\/span><\/span><\/span>
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    <\/p>\n

      \n
    •  Degree in Computer Science, Engineering, Information Technology or equivalent.
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    • Minimum 6 years of design & development experience.
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    • Desired skillset Java, AWS Cloud, Python.
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    • Expertise with Continuous Integration practices and automated deployment tools.
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    • REST API Test Automation experience in Java and Python development
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    • Experience of working with a distributed team.
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    • Experience with deploying applications to AWS.
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    • Solid Jenkins experience a distinct advantage.
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    • Experience working in financial services desired.
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      \n <\/div><\/span>
      \n <\/body>\n<\/html>

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