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Mainframe Modernization Jobs in Ontario (NOW HIRING)

Own end to end architecture for complex multi-year technology modernization initiative that ... mainframe, transactional systems) and modern technologies (microservices, REST APIs, cloud ...

... modernization Primary Location: Toronto, ON Work Model: Hybrid 3-Days Onsite Employment Type ... Lead discovery and dependency mapping of legacy environments including mainframes, core banking ...

... modernization Primary Location: Toronto, ON Work Model: Hybrid 3-Days Onsite Employment Type ... Lead discovery and dependency mapping of legacy environments including mainframes, core banking ...

Performs QE activities to support enterprise scale data transformation and modernization. Ensures ... Mainframe environment Experience with testing large data transformations and migrations at ...

Understanding of one or more computing platforms (cloud, mid-tier, mainframe), web, API and ... Experience conducting gap and impact analyses for large-scale systems or modernization programs.

Showing results 21-28

Mainframe Modernization information

What is mainframe modernization?

A Mainframe Modernization job involves updating, reengineering, or migrating legacy mainframe applications to modern platforms, technologies, or cloud environments. Professionals in this role assess existing mainframe systems, identify optimization opportunities, and implement strategies to enhance performance, scalability, and integration with modern IT architectures. They may use approaches like rehosting, refactoring, or replacing applications to reduce costs and improve agility. The job typically requires expertise in legacy systems (e.g., COBOL, DB2) and modern cloud or microservices architectures.

What are the typical responsibilities and daily tasks in a mainframe modernization role?

In a Mainframe Modernization role, you can expect to analyze and document legacy mainframe applications, design modernization strategies, and implement solutions that migrate or integrate these systems with newer technologies. Your days may involve collaborating with business analysts, developers, and project managers to prioritize features and minimize business disruption, as well as troubleshooting integration issues. Many professionals also monitor system performance post-migration and help train end-users on the new platforms. This position often requires balancing hands-on technical work with effective communication across diverse teams to ensure project success.

What are the key skills and qualifications needed to thrive in a mainframe modernization position?

To thrive in Mainframe Modernization, you need expertise in legacy mainframe systems, programming languages like COBOL, and modern software development methodologies, often backed by a degree in computer science or a related field. Knowledge of tools such as IBM z/OS, migration frameworks, cloud platforms (like AWS, Azure), and relevant certifications (e.g., AWS Certified Solutions Architect) is highly valuable. Strong analytical thinking, problem-solving ability, and effective communication skills help you succeed in cross-functional environments. These skills are crucial for executing system upgrades, ensuring minimal downtime, and facilitating smooth transitions to modern technology platforms.

Is mainframe modernization still in demand?

Mainframe modernization remains in demand as organizations seek to update legacy systems for improved efficiency, security, and integration with modern technologies. Professionals with skills in mainframe environments, such as COBOL, JCL, and modernization tools, are valued for helping businesses transition to cloud and distributed architectures.

What are popular job titles related to Mainframe Modernization jobs in Ontario?

For Mainframe Modernization jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Mainframe Modernization jobs in Ontario look for?

The top searched job categories for Mainframe Modernization jobs in Ontario are:

Infographic showing various Mainframe Modernization job openings in Ontario as of August 2026, with employment types broken down into 84% Full Time, 11% Part Time, and 5% Contract. Highlights an 79% Physical, 8% Hybrid, and 13% Remote job distribution.

Senior Solution Architect

Scotiabank

Toronto, ON • On-site

Full-time

PTO

Re-posted 14 days ago


Job description

Requisition ID: 255616 
Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture.

Canadian Banking Engineering is looking for a senior Solution Architect to enable enterprise scale platform modernization. As a senior member of Customer domain, you will own the Architecture for Customer Systems domain in technology with critical focus to establish clear architectural patterns enabling successful modernization of Customer data platform.  
This individual will bring deep technical expertise, pragmatic problem-solving ability to drive complex technology modernization. This individual will be key player in architecting the future technology road map for Canadian Banking applications. The role offers an exciting opportunity to modernize the bank's Customer data platform at enterprise scale.  


Is this role right for you? In this role, you will:

   Provide architecture leadership and act as the Architectural custodian for Customer Systems representing technology across the enterprise 
   Define and maintain target-state architecture for Customer Systems domain/ Customer platform that includes all upstream and downstream internal and 3rd party systems and data. 
   Own end to end architecture for complex multi-year technology modernization initiative that includes legacy systems and platform, master data systems, API services and other technologies.  
   Design migration strategies and patterns from legacy systems to modern platforms identifying technology challenges while offering future proof solutions  
   Own critical architectural decisions balancing technical debt reduction, operational risk, delivery timelines and regulatory requirements defending trade-offs  
   Regulatory & Security Alignment - Ensure the architecture and solution is as per bank's regulatory, security and compliance standards  
   Deep collaboration and partnership with business, operations, other technology domains and 3rd party partners with expertise in facilitating workshops, design and solution sessions to drive desired outcomes 
   Inspire teams to use AI, Tools and Automation while ensuring responsible AI usage as per bank's policy and framework 

Do you have the skills that will enable you to succeed in this role? We'd love to work with you if you have:

   15+ years of architecture (solution or enterprise) preferably with financial services with proven track record leading large scale customer information consolidation program, core / legacy system replacements and book of record migrations 
   Deep technical versatility spanning legacy platform (COBOL, mainframe, transactional systems) and modern technologies (microservices, REST APIs, cloud platforms, ETK frameworks)  
   Experience with master data management (e.g. MDM, Informatica), designing customer data models with industry specific extensions, data quality frameworks and large-scale data migration experience 
   Can do execution mindset with ability to inspire engineers, QE and other relevant stakeholders with ownership mindset driving delivery forward 
   Strong communication and articulations skills with ability to represent architectural topics at executive forums  
   Ability to effectively resolve conflicts, develop trust-based relationships and be a team player 
 


What's in it for you?
Diversity, Equity, Inclusion & Allyship - We strive to create an inclusive culture where every employee is empowered to reach their fullest potential, respected for who they are, and are embraced through bias-free practices and inclusive values across Scotiabank. We embrace diversity and provide opportunities for all employee to learn, grow & participate through our various Employee Resource Groups (ERGs) that span across diverse gender identities, ethnicity, race, age, ability & veterans.
   Accessibility and Workplace Accommodations - We value the unique skills and experiences each individual brings to the Bank and are committed to creating and maintaining an inclusive and accessible environment for everyone. Scotiabank continues to locate, remove, and prevent barriers so that we can build a diverse and inclusive environment while meeting accessibility requirements. 
   Upskilling through online courses, cross-functional development opportunities, and tuition assistance. 
   Competitive Rewards program including bonus, flexible vacation, personal, sick days, and benefits will start on day one.
   Community Engagement - no matter where you choose to work from; we offer opportunities for community engagement & belonging with our various programs.

Location(s):  Canada : Ontario : Toronto 
Scotiabank is a leading bank in the Americas. Guided by our purpose: "for every future", we help our customers, their families and their communities achieve success through a broad range of advice, products and services, including personal and commercial banking, wealth management and private banking, corporate and investment banking, and capital markets.  
At Scotiabank, we value the unique skills and experiences each individual brings to the Bank, and are committed to creating and maintaining an inclusive and accessible environment for everyone. If you require accommodation (including, but not limited to, an accessible interview site, alternate format documents, ASL Interpreter, or Assistive Technology) during the recruitment and selection process, please let our  Recruitment team know. If you require technical assistance, please click here. Candidates must apply directly online to be considered for this role. We thank all applicants for their interest in a career at Scotiabank; however, only those candidates who are selected for an interview will be contacted.