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Full Time Java Mainframe Developer Jobs in Toronto, ON

To successfully perform the work, you'll be on-site full-time. You'll have the flexibility to ... C, C++, Java, SQL. * You put our clients first. You engage with purpose to find the right solutions.

To successfully perform the work, you'll be on-site full-time. You'll have the flexibility to ... C, C++, Java, SQL. * You put our clients first. You engage with purpose to find the right solutions.

This role spans both modern full-stack development and Mainframe-based payment processing, offering ... Must have: * 3-4 years of hands-on experience (or strong internship/co-op) in Java / Spring Boot ...

Sr. Java Developer

Toronto, ON ยท On-site

$80K - $150K/yr

Strong expertise in Java programming, including proficiency with generics and lambda expressions ... Employment Type: FULL_TIME

Java Developer (Contract)

Toronto, ON ยท Remote

CA$40 - CA$48/hr

... for a Java Developer to join KeyData Cyber's Delivery Services team. This role is focused on ... Canada, Remote Employment Type : Full-time contract position starting in mid-May 2026 through ...

Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%. We are looking for a Java IVR Application Developer to join our voice/contact center engineering team and ...

Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%. We are looking for a Java IVR Application Developer to join our voice/contact center engineering team and ...

... in Java and GoLang. You'll assist with the planning and strategy for the technical design ... To successfully perform the work, you'll be on-site full-time. You'll have the flexibility to ...

... in Java and GoLang. You'll assist with the planning and strategy for the technical design ... To successfully perform the work, you'll be on-site full-time. You'll have the flexibility to ...

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Full Time Java Mainframe Developer information

What are the key skills and qualifications needed to thrive as a Full Time Java Mainframe Developer, and why are they important?

To thrive as a Full Time Java Mainframe Developer, you need proficiency in Java programming, mainframe technologies like COBOL or JCL, and a relevant degree in computer science or a related field. Familiarity with mainframe development tools (e.g., IBM z/OS, TSO/ISPF), version control systems, and sometimes certifications such as IBM Certified System Programmer are typically required. Strong problem-solving, communication, and teamwork skills help developers translate business needs into robust mainframe solutions and collaborate across diverse IT teams. These capabilities ensure the reliable modernization, maintenance, and integration of enterprise-level legacy systems with new Java applications.

What are some common challenges faced by Full Time Java Mainframe Developers when integrating modern Java applications with legacy mainframe systems?

A common challenge for Full Time Java Mainframe Developers is ensuring seamless communication between modern Java-based applications and existing mainframe systems, which often use older technologies and data formats. Developers need to address issues such as data mapping, protocol compatibility, and performance optimization to maintain reliable and efficient integration. Additionally, understanding both Java and mainframe environments is crucial, as troubleshooting can require knowledge of mainframe batch jobs, COBOL code, or CICS transactions alongside Java frameworks. Collaborative work with mainframe specialists and clear documentation are essential for overcoming these challenges.

What is a Full Time Java Mainframe Developer?

A Full Time Java Mainframe Developer is a professional who specializes in developing, maintaining, and enhancing applications that run on mainframe systems using the Java programming language. These developers often integrate modern Java-based applications with legacy mainframe systems, ensuring seamless data flow and system compatibility. Their responsibilities may include coding, debugging, testing, and optimizing applications for performance on mainframe platforms, as well as collaborating with other IT professionals to support business operations. This role typically requires knowledge of both Java and mainframe technologies like COBOL, JCL, and CICS.

What is the difference between Full Time Java Mainframe Developer vs Mainframe Developer?

AspectFull Time Java Mainframe DeveloperMainframe Developer
Required SkillsJava, Mainframe (COBOL, JCL), DB2, CICSCOBOL, JCL, DB2, CICS
Work EnvironmentBanking, Finance, Insurance sectors with Java and Mainframe integrationLegacy systems in banking, government, insurance
CertificationsJava certifications, Mainframe certifications (e.g., IBM Certified)Mainframe certifications (e.g., IBM Certified)

Full Time Java Mainframe Developers combine Java programming with traditional Mainframe skills, working on integrated systems in finance and banking. Mainframe Developers focus primarily on legacy systems using COBOL and JCL. The former often requires Java certifications, while the latter emphasizes Mainframe-specific credentials. Both roles are vital in industries maintaining legacy systems but differ in technical focus and skill set.

What are the most commonly searched types of Java Mainframe Developer jobs in Toronto, ON? The most popular types of Java Mainframe Developer jobs in Toronto, ON are:
What are popular job titles related to Full Time Java Mainframe Developer jobs in Toronto, ON? For Full Time Java Mainframe Developer jobs in Toronto, ON, the most frequently searched job titles are:
What job categories do people searching Full Time Java Mainframe Developer jobs in Toronto, ON look for? The top searched job categories for Full Time Java Mainframe Developer jobs in Toronto, ON are:
Infographic showing various Full Time Java Mainframe Developer job openings in Toronto, ON as of May 2026, with employment types broken down into 100% Full Time. Highlights an 80% In-person, and 20% Hybrid job distribution.

Mainframe Developer

CIBC US

Toronto, ON โ€ข Hybrid

Full-time

Retirement

Posted 13 days ago


Job description

We're building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what's right for our clients.

At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are and what they contribute.

To learn more about CIBC, please visit CIBC.com

What you'll be doing

As a member of CIBC's Shared Platform Technology Team, the Mainframe Developer will help lead the technical design, development and integration of cross-functional, multi-platform application systems and provide enhancements to existing Mainframe COBOL Application technologies and JCL and DB2/IMS.

At CIBC we enable the work environment most optimal for you to thrive in your role. To successfully perform the work, you'll be on-site full-time.You'll have the flexibility to manage your work activities within a hybrid work arrangement where you'll spend 1-3 days per week on-site, while other days will be remote.

How you'll succeed

  • Design and Development- Perform and coordinate complicated application programming activities. Design the application's technical infrastructure using specific databases, programming languages, utilities, and testing approaches.Lead the design and development of cost-effective and innovative solutions.

  • Strategic Planning- Develop multi-year technology roadmaps that align with the bank's vision, strategy, and business goals. Lead multiple complicated projects involving backend systems, new technology, and the enhancement of existing applications.

  • Leadership Skills- Support and collaborate with intermediate and senior developers by sharing knowledge, collaborating and problem solving.

Who you are

  • You can demonstrate 5 years experience. In application development with a focus on design and develop both front-end and back-end components of web applications. Collaborate with designers to implement responsive and visually appealing web designs. Implement and maintain Main Frame applications seamless communication between front-end and back-end systems. Optimize Main Frame applications for performance, and speed. Ensure adherence to coding standards, best practices, and COBOL development guidelines. Conduct cross- mainframe and cross-device compatibility testing. Identify and troubleshoot issues in web applications, and propose and implement solutions. Collaborate with quality assurance teams to ensure proper testing and validation of web applications. Document technical specifications, system architecture, and development processes. Stay up-to-date with emerging web technologies and industry trends, and recommend innovative solutions. Nice to have: C, C++, Java, SQL.

  • You put our clients first. You engage with purpose to find the right solutions. You go the extra mile, because it's the right thing to do.

  • You're goal oriented. You're motivated by accomplishing your goals and delivering your best to make a difference.

  • You're passionate about people. You find meaning in relationships and surround yourself with a diverse network of partners. You connect with others through respect and authenticity.

  • You love to learn. You're passionate about growing your knowledge. You have a strong sense of curiosity.

  • You're a certified professional. Bachelor's degree or equivalent in Computer Science or Technical discipline.

  • Values matter to you. You bring your real self to work and you live our values - trust, teamwork, and accountability.

What CIBC Offers

At CIBC, your goals are a priority. We start with your strengths and ambitions as an employee and strive to create opportunities to tap into your potential. We aspire to give you a career, rather than just a paycheck.

  • We work to recognize you in meaningful, personalized ways including a competitive salary, incentive pay, banking benefits, a benefits program*, defined benefit pension plan*, an employee share purchase plan, a vacation offering, wellbeing support, and MomentMakers, our social, points-based recognition program.

  • Our spaces and technological toolkit will make it simple to bring together great minds to create innovative solutions that make a difference for our clients.

  • We cultivate a culture where you can express your ambition through initiatives like Purpose Day; a paid day off dedicated for you to use to invest in your growth and development.

*Subject to plan and program terms and conditions

What you need to know

  • CIBC is committed to creating an inclusive environment where all team members and clients feel like they belong. We seek applicants with a wide range of abilities and we provide an accessible candidate experience. If you need accommodation, please contact Mailbox.careers-carrieres@cibc.com

  • CIBC is committed to clarity in our hiring process. All roles posted are opportunities we're actively recruiting for, unless stated otherwise.

  • You need to be legally eligible to work at the location(s) specified above and, where applicable, must have a valid work or study permit.

  • We may ask you to complete an attribute-based assessment and other skills test (such as simulation, coding, French proficiency).

  • We use artificial intelligence tools during the recruitment process. Our goal for the application process is to get to know more about you, all that you have to offer, and give you the opportunity to learn more about us.

Job Location

Toronto-81 Bay, 22nd Floor

Employment Type

Regular

Weekly Hours

37.5

Skills

Cobol Mainframe, DB2 SQL, Dev-C++, IBM Db2, IMS Databases, Java, Job Control Language (JCL)