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Full Time Java Mainframe Developer Jobs in Toronto, ON

... Java Cloud development The base compensation range for this role in the posted location is: 85,000 ... Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time ...

Strong knowledge of the relevant business domain, engineering frameworks, mainframe platforms ... JAVA, Angular, VB Script,Spring, HTML5. Education: Undergraduate degree in Computer Science ...

New

We are seeking a highly experienced and motivated Lead Java Developer with 6+ years of industry ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

Lead Java Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

Role Summary: We are looking for a Java Engineer to design, build, and support modern web APIs ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

New

The Java Developer Analyst is an junior level position within the Markets Treasury Technology team ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

New

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 ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

Java Backend Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

The Java Backend Developer is an intermediate level position responsible for participation in the ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

New

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 ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

Java Backend Engineer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly skilled Java Developer with strong expertise in building scalable, secure ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

We are seeking a highly motivated and experienced Senior Java Developer to join our dynamic team ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

Java Backend Engineer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly skilled Java Developer with strong expertise in building scalable, secure ... Applications Development ----- Time Type: Full time ----- Primary Location Full Time Salary Range ...

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Full Time Java Mainframe Developer information

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 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 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 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 August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Mainframe Developer

Toronto, ON


United Airlines
Aviation • 10K+ employees

7.9

Company rating: 7.9 out of 10

Based on 342 frontline employees who took The Breakroom Quiz

7th of 26 rated airlines

Great coworkers

People enjoy working here

Good employer


Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 12 days ago


Job description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you'd like, where you'll be supported and inspired bya collaborative community of colleagues around the world, and where you'll be able to reimagine what's possible. Join us and help the world's leading organizationsunlock the value of technology and build a more sustainable, more inclusive world.

Job Description

As a Senior Developer, you will be working in a development and support capacity on our core mainframe cards and transactions system.
The core application is a large, sophisticated mainframe-based system which connects clients to their banking products and services. This 24/7 application supports critical delivery channels such as Online Banking, POS, ATM and others.

What will you do?

Design, develop, test, deploy, support and evolve software to deliver banking services.
Lead conversion, attestation and audit initiatives
Manage individual priorities, deadlines and deliverables.
Assess and analyze business and technical requirements in order to provide estimates and establish plans and timelines
Create, update and contribute to critical documentation relevant to the projects
Effectively communicate and build rapport with team members and various IT partners
Available for after-hours production support when needed (rare)

What do you need to succeed?

Must-have:

Completion of a post-secondary education
Outstanding communication skills (written and verbal)
Strong background in software Maintenance especially mainframe
Expertise in COBOL, JCL, IMS (DB/Online/Batch), DB2, MQSeries, Git/Endevor and Zeke

Nice-to-have:

Understanding/usage of z/OS Connect, IDz, zUnit and test automation
Experience with CI/CD mainframe pipeline
Familiarity with Java Cloud development

The base compensation range for this role in the posted location is: 85,000 - 95,652.

Capgemini provides compensation range information in accordance with applicable national, state, provincial, and local pay transparency laws. The base compensation range listed for this position reflects the minimum and maximum target compensation Capgemini, in good faith, believes it may pay for the role at the time of this posting. This range may be subject to change as permitted by law.

The actual compensation offered to any candidate may fall outside of the posted range and will be determined based on multiple factors legally permitted in the applicable jurisdiction.

These may include, but are not limited to: Geographic location, Education and qualifications, Certifications and licenses, Relevant experience and skills, Seniority and performance, Market and business consideration, Internal pay equity.

It is not typical for candidates to be hired at or near the top of the posted compensation range.

In addition to base salary, this role may be eligible for additional compensation such as variable incentives, bonuses, or commissions, depending on the position and applicable laws.

Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time employees. In the U.S. and Canada, available benefits are determined by local policy and eligibility and may include: 

  • Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave
  • Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
  • Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
  • Life and disability insurance
  • Employee assistance programs
  • Other benefits as provided by local policy and eligibility

Important Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws. The Company reserves the right to amend or withdraw compensation programs at any time, within the limits of applicable legislation.

Disclaimers

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. Capgemini also participates in the Partnership Accreditation in Indigenous Relations (PAIR) program which supports meaningful engagement with Indigenous communities across Canada by promoting fairness, accessibility, inclusion and respect.  We value the rich cultural heritage and contributions of Indigenous Peoples and actively work to create a welcoming and respectful environment. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.

This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodation does not pose an undue hardship. Capgemini is committed to providing reasonable accommodation during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Please be aware that Capgemini may capture your image (video or screenshot) during the interview process and that image may be used for verification, including during the hiring and onboarding process.

Click the following link for more information on your rights as an Applicant in the United States.  http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.


United Airlines logo

About United Airlines

Sourced by ZipRecruiter

United Airlines is embarking on an exciting journey to become the best airline in aviation history. Our purpose, "Connecting People, Uniting the World," extends beyond transportation, emphasizing our commitment to uplift and create opportunities in the places we serve. With a global presence and diverse workforce, we value inclusivity and are dedicated to hiring tens of thousands of individuals across various roles. Our comprehensive benefits package, including perks like space available travel, parental leave, and 401k, aims to support your well-being and growth.

Industry

Aviation

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US

Year founded

1926

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Pay

Benefits

Hours and flexibility

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