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Senior Java Developer Jobs in Ontario (NOW HIRING)

Senior Java Developer

Etobicoke, ON · Hybrid

CA$120K - CA$140K/yr

As a Senior Java Back-End Developer at Localcoin, you will be responsible for developing and maintaining functional and stable back end applications for our company, ensuring system consistency and ...

\n \n \n \n \n Are you a Senior Java Developer with extensive cloud experience looking for your next challenge? Do you have Microservices and TDD? Are you interesting in working in the banking sector?

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly motivated and experienced Senior Java Developer to join our dynamic team focused on enhancing developer productivity. Our mission is to build and maintain cutting-edge ...

We are seeking a highly motivated and experienced Senior Java Developer to join our dynamic team focused on enhancing developer productivity. Our mission is to build and maintain cutting-edge ...

The Applications Development Senior Manager (Senior Java Developer - Vice President) is a senior-level position responsible for driving results through hands-on technical leadership and team guidance ...

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 ...

The Senior Java Developer is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly experienced and motivated Lead Java Developer with 6+ years of industry experience to spearhead the development of robust, scalable, and innovative enterprise applications.

You will work on a high performing team of Senior Java Developers where you will be joining the newly formed Cloud Transformation team. There are many Cloud Architects across the team who you will be ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin. You will be joining a rapidly expanding team who are working on the most cutting edge products. \n \n ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin. You will be working as part of an agile team to deliver the highest quality solutions! \n \n \n \n \n ...

\n \n \n \n \n We have a contract position available for a Java developer within a rapidly growing global team. You will be responsible for the design and development of the company's platform and ...

... performing team of Senior Java Developers where you will be joining the newly formed Cloud ... Transformation team. There are many Cloud Architects across the team who you will be working ...

Senior Java Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

\n \n \n \n Senior Java Engineer \- \/AWS \n \n \n \n \n \n * Dublin\/ Galway - Remote\/WFH\n \n * Long Term Contract\n \n * Negotiable Day Rate\n \n \n \n \n \n \n \n Leading Fintech\/ Financial ...

You will work on a high performing team of Senior Java Developers where you will be joining the newly formed Cloud Transformation team. There are many Cloud Architects across the team who you will be ...

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

Senior Java Developer

Mississauga, ON · On-site +1

CA$129K - CA$194K/yr

Primary Programming Languages: Java, Bash shell and Coreutils, Perl, Python, Go, Rust * OS/Technologies: Linux SuSE Operating system * Experience in DICOM and HL7 * An undergraduate or college degree ...

... Senior Software Engineer vacancy. \n \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 \n

Showing results 21-40

Senior Java Developer information

See Ontario salary details

$67.5K

$125.1K

$172K

How much do senior java developer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for senior java developer in Ontario is $125,072.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,000.00 and $141,500.00 per year, depending on experience, location, and employer.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

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

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

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

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

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

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are the most commonly searched types of Java Developer jobs in Ontario?

The most popular types of Java Developer jobs in Ontario are:

What job categories do people searching Senior Java Developer jobs in Ontario look for?

The top searched job categories for Senior Java Developer jobs in Ontario are:

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

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

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

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

Infographic showing various Senior Java Developer job openings in Ontario as of September 2026, with employment types broken down into 84% Full Time, 6% Part Time, and 10% Contract. Highlights an 79% Physical, 5% Hybrid, and 16% Remote job distribution, with an average salary of $125,072 per year, or $60.1 per hour.

Senior Java Developer

Etobicoke, ON • Hybrid

CA$120K - CA$140K/yr

Full-time

Posted 18 days ago


Key responsibilities

  • Develop, maintain, troubleshoot, and debug Java applications and integrations to ensure high availability and optimal performance.

  • Collaborate with stakeholders and UI teams to design and implement secure, scalable, and maintainable integration solutions.

  • Monitor application performance, identify bottlenecks, and respond to integration issues and production incidents.


Job description

ABOUT US

Localcoin, founded in 2017 with headquarters in Toronto, is on a mission to simplify the process and experience of buying or selling digital currencies globally. We envision bringing digital currency to the mainstream financial market through partnerships with leading corporate and franchised retail spaces. With terminals across Canada, Poland and the APAC region, including Australia, Hong Kong, and New Zealand, Localcoin is now the fastest growing Bitcoin ATM operator in the world.

At its core, Localcoin believes that everyone should be able to own cryptocurrency and have a deep understanding of blockchain technology. As a member of our rapidly growing team, you'll join a talented, dynamic group of team members who will encourage you to learn, grow, and thrive in your career every step of the way.

If you're a self-starter looking to hone your skills in a startup environment that fosters innovation, transparency, and team connectivity, we look forward to hearing from you!

THE ROLE

Salary Range: $120,000 - $140,000

Localcoin seeks to inspire the future of digital currency globally as the largest bitcoin ATM network in Canada. We are looking for an individual who is passionate about learning new technologies to join our growing Engineering team as our Senior Java Back End Developer. 

As a Senior Java Back-End Developer at Localcoin, you will be responsible for developing and maintaining functional and stable back end applications for our company, ensuring system consistency and availability. Working alongside the Engineering team, you should have an unyielding desire to learn and broaden your horizon along with contributing towards daily deliverables. You should be a team player, familiar with the Agile framework of delivery.

This position will be based out of our office in Etobicoke, ON, and will have a hybrid work schedule of 2 days a week. 

WHAT YOU'LL BE DOING 

  • Work closely with technical and non-technical stakeholders to design and implement secure, scalable, and maintainable integration solutions aligned with business strategy.
  • Ensure applications and integrations adhere to best practices for security, compliance, and data protection, proactively identifying and mitigating vulnerabilities.
  • Develop, maintain, troubleshoot, and debug Java applications and integrations, ensuring high availability and optimal performance.
  • Collaborate with UI teams to ensure seamless front-end and back-end interactions, optimizing for performance, security, and user experience.
  • Implement secure coding practices, conduct peer code reviews, and contribute to system stability and resilience.
  • Monitor application performance, identify bottlenecks, and enhance efficiency to improve user experience and system reliability.
  • Respond to integration issues, resolve production incidents efficiently, and contribute to post-mortem analysis and improvements.
  • Stay updated with the latest Java development trends, security best practices, and architectural improvements to enhance system robustness.
  • Guide and mentor junior developers, fostering a culture of learning, best practices, and technical excellence. Provide support through code reviews, technical guidance, and skill development.

WHAT WE'RE LOOKING FOR 

  • 5+ years in backend development and strong knowledge in Java 8 along with Maven or Gradle.
  • In-depth experience with Spring framework, including Spring - Boot, JPA, MVC and Spring Security for building RESTful services.
  • Experience with functional testing, unit testing, code coverage and static code analysis tools such as Sonar.
  • Experience with BDD and related tools.
  • Strong proficiency in SQL. DDL, DML, relational database design and indexing in any well known SQL databases such as MySQL, Postgres, Oracle DB, MSSQL
  • Proficient in Git flow, Maven, NGINX and Docker.

NICE TO HAVES

  • Experience with any CI/CD platforms on the cloud
  • Expertise on Linux platforms and shell commands
  • Good understanding of cloud environments like AWS/GPC
  • Experience in Angular/React JS
  • Expertise using Swagger and/or Postman tools
  • Good understanding about database-migration tools such as Flyway


WHAT YOU'LL LOVE ABOUT US

  • Competitive Salary & Benefits – We value and reward our team members.
  • RRSP Group Matching Program – We invest in your financial well-being.
  • Hybrid Work Environment – Enjoy flexibility while being part of a dynamic team.
  • Professional Development – Opportunities for learning and growth covered by Localcoin.
  • Team Culture & Events – Regular socials, team meetings, and collaborative workspaces.
  • Impactful Work – Play a key role in a growing company and make a real difference.
  • Great Place to Work® Certified – Proudly recognized for our positive workplace culture and employee experience.

JOIN OUR INCLUSIVE TEAM

Localcoin is committed to building an inclusive, accessible, and equitable workplace. We welcome applicants from all backgrounds and do not discriminate based on race, ancestry, place of origin, color, ethnic origin, citizenship, creed, sex, sexual orientation, gender identity or expression, age, marital status, family status, or disability.

If you require accommodation at any stage of the recruitment process, please notify the Talent team or email careers@localcoinatm.com.

Applicants must be legally eligible to work in Canada. At this time, we are not able to provide visa sponsorship.

AI DISCLOSURE STATEMENT

We want to share that we may use artificial intelligence (AI) tools to help screen and assess applications. While technology helps us stay organized and efficient, every hiring decision at Localcoin is made by real people who care about finding the best addition to our team. These tools are used to support our process—not to replace the human judgment and connection that are core to our culture.