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Sr Java Engineer Jobs in Ontario (NOW HIRING)

\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 ...

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 ...

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 ...

\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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

\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 ...

Sr. Java Developer

Toronto, ON · On-site

$80K - $150K/yr

About the Role We are an innovative startup seeking a highly skilled and adaptable Senior Java Developer to join our dynamic team. In addition to developing robust and scalable software solutions ...

We are currently hiring a Senior Java Developer based in Toronto, ON . 🔹 This role requires strong Java backend expertise along with hands-on frontend experience in Angular to build modern ...

\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 ...

\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 ...

... performing Java and Data engineer to help us design and implement next-generation calculations ... senior, executive stakeholders. Desired Skillsets: * Java/JEE * Spark/Scala * Big Data/Hadoop/Hive

We are seeking a highly experienced and technically proficient Senior Java Developer to join a new initiative with our financial service client. The successful candidate will be part of one of two ...

\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.

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 ...

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Sr Java Engineer information

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

To thrive as a Sr Java Engineer, you need advanced expertise in Java programming, object-oriented design, and experience with frameworks like Spring or Hibernate, usually supported by a degree in computer science or related field. Familiarity with development tools such as Maven, Git, CI/CD pipelines, and cloud platforms like AWS or Azure is typically required. Strong problem-solving abilities, effective communication, and leadership skills set top performers apart in this role. These skills and qualifications are crucial for delivering robust, scalable software solutions and leading technical teams efficiently.

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

AspectSr Java EngineerJava Developer
Required CredentialsBachelor's in CS or related, often with certifications like Oracle Java CertificationBachelor's in CS or related, similar certifications
Work EnvironmentTeam projects, software development, system architectureApplication coding, feature development, bug fixing
Industry UsageUsed across tech companies, finance, healthcare, and moreCommon in software firms, startups, and enterprise applications

While both roles involve Java programming, Sr Java Engineers typically have more experience, handle complex system design, and mentor junior developers. Java Developers focus on coding and implementing features. The roles often overlap, but the seniority and scope differ.

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

Sr Java Engineers often encounter challenges such as managing complex codebases, ensuring high performance under heavy loads, and maintaining robust security standards. Collaborating with cross-functional teams—including DevOps, QA, and front-end developers—is essential for addressing integration issues and streamlining deployments. Staying updated with evolving Java frameworks and best practices is also crucial, as technology stacks in enterprise environments change rapidly. Effective communication and problem-solving skills greatly help in navigating these challenges.

What is a Sr Java Engineer?

A Sr Java Engineer is an experienced software developer who specializes in designing, developing, and maintaining complex applications using the Java programming language. They often take on leadership roles within development teams, mentor junior developers, and are responsible for making key architectural decisions. Sr Java Engineers work with frameworks such as Spring and Hibernate, implement best coding practices, and ensure that software projects meet performance, scalability, and security requirements. Their expertise is critical in building reliable enterprise-level applications.
Infographic showing various Sr Java Engineer job openings in Ontario as of May 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Remote job distribution.

Senior Java Software Engineer

StackandCo

Remote

Full-time

Posted 7 days ago


Job description

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Senior Java Engineer \- \/AWS<\/u><\/b><\/span><\/span><\/span><\/span>
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  • Dublin\/ Galway - Remote\/WFH
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  • Long Term Contract
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  • Negotiable Day Rate
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    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>
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    Candidates must be based in Ireland with full work rights.<\/span><\/span><\/span><\/span>
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    •  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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