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BMO U.S.

Intermediate Mainframe Application Developer

BMO U.S.

Mainframe Application Developer at BMO, focusing on mainframe technologies and software design. Aiding in the financial services development team with application support and performance improvement.

Posted 5/1/2026full-timeRemote • 🇨🇦 CanadaMid-LevelSenior💰 CA$61,600 - CA$113,900 per yearWebsite

About the role

Key responsibilities & impact
  • understand BMO Mainframe environment and strategic goals and advocate for our mainframe technologies
  • assess impact of design decisions to the solution/product/service being developed
  • recommend alternate/creative solutions for mitigation/optimization if required
  • assess costs and benefits for different solutions and recommend/decide on appropriate designs
  • identify opportunities to strengthen development capability, such as sharing expertise to promote technical development, mentoring employees, building communities of practice and networks
  • devise new algorithms and data structures for target environment and platform attributes in alignment with architectural patterns
  • recommend or automate approaches to streamline and integrate technological processes and/or systems to improve operational efficiency and effectiveness
  • build effective relationships with internal/external stakeholders and ensure alignment
  • interact with key business & technology stakeholders to define, analyze, and deliver requirements that reflect the needs of both the business and end-customers
  • monitor and track code and application performance, and address any issues

Requirements

What you’ll need
  • 3+ years of experience with IBM mainframe technologies and languages such as; COBOL, z/OS, CICS, PL/1, TSO, DB2, VSAM, JCL, etc
  • working understanding of ZOS connect APIs and interaction with Mainframe systems
  • knowledge of IBM HLASM is beneficial
  • knowledge of batch and online processes within a financial system
  • knowledge of automation using IBM tools in either Dev or QA capacity
  • knowledge or related experience working in a mainframe development or production environment
  • knowledge of software development practices, concepts, and technology obtained through formal training and/or work experience
  • knowledge of Mainframe programming languages like COBOL, PL1, assembler and can code with little oversight
  • understanding functional aspects and technical behavior of the underlying operating system, development environment, and deployment practices
  • deep knowledge and technical proficiency gained through extensive education and business experience

Benefits

Comp & perks
  • health insurance
  • tuition reimbursement
  • accident and life insurance
  • retirement savings plans

ATS Keywords

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Hard Skills & Tools
COBOLz/OSCICSPL/1TSODB2VSAMJCLZOS connect APIsIBM HLASM
Soft Skills
mentoringrelationship buildingstakeholder engagementanalytical skillsproblem-solvingcommunicationcollaborationtechnical developmentcommunity buildingcreativity