Mainframe Application Developer - C/C++ & COBOL

Mainframe Application Developer - C/C++ & COBOL

Location: Toronto – 4 days WFO

We are seeking a highly skilled and experienced Software Developer with deep expertise in C and C++. The ideal candidate will be responsible for designing, developing, maintaining, and optimizing enterprise-grade applications, particularly in legacy systems and high-performance computing environments. This role requires strong analytical skills, attention to detail, and the ability to work collaboratively across cross-functional teams.

Key Responsibilities

Application Development & Maintenance

• Design, develop, and maintain software applications using C, C++, COBOL, and other mainframe technologies.
  
• Enhance and optimize legacy systems for performance, scalability, and reliability.
  
• Perform code reviews, debugging, and troubleshooting of complex systems.
  

System Integration

• Integrate mainframe applications with distributed systems and modern platforms.
  
• Develop APIs and interfaces for data exchange between legacy and modern systems.
  

Database Management

• Work with DB2 for data modeling, query optimization, and performance tuning.
  
• Ensure data integrity and security across applications.
  

Job Control & Batch Processing

• Develop and manage JCL scripts for batch processing and job scheduling.
  
• Monitor and resolve issues in production batch jobs.
  

Documentation & Compliance

• Create and maintain technical documentation, including design specifications, user guides, and support manuals.
  
• Ensure compliance with industry standards and internal policies (e.g., security, data privacy).
  

Collaboration & Leadership

• Collaborate with business analysts, QA teams, and project managers to deliver high-quality solutions.
  
• Mentor junior developers and contribute to knowledge-sharing initiatives.
  
  

Required Skills & Qualifications

Technical Expertise

• 6–8 years of hands-on experience in C, C++, COBOL, JCL, and DB2.
  
• Strong understanding of mainframe architecture and z/OS environment.
  
• Experience with debugging tools (e.g., Xpediter, Abend-AID) and version control systems.
  

Analytical & Problem-Solving

• Excellent analytical skills with the ability to troubleshoot and resolve complex issues.
  
• Strong understanding of software development lifecycle (SDLC) and agile methodologies.
  

Communication

• Effective verbal and written communication skills.
  
• Ability to translate technical concepts into business-friendly language.