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Senior AS400 Application Support Engineer

00070349471

About the role

As a Senior AS400 Application Support Engineer, you will make an impact by ensuring the stability, reliability, and continuous enhancement of business-critical applications running on the IBM i (AS400) platform. You will be a valued member of the Application Support team and collaborate with business stakeholders, development teams, and client partners to support enterprise systems while contributing to modernization and transformation initiatives.

In this role, you will:

  • Monitor AS400 batch cycles, production jobs, and system performance to proactively identify and resolve issues before they impact business operations.
  • Troubleshoot and resolve production incidents, defects, and application issues while meeting established service level agreements.
  • Analyze, develop, maintain, and enhance applications using RPGLE, RPG, SYNON, COBOL, CLP, and SQL.
  • Collaborate with business users to gather requirements and translate them into technical solutions and specifications.
  • Support modernization initiatives by documenting business processes, identifying system gaps, and validating integration processes and data flows.
  • Perform data analysis and reconciliation activities to ensure data accuracy across applications and reporting environments.
  • Review code changes, provide technical guidance, and support testing, deployment, release, and post-production activities.
  • Partner with cross-functional teams to drive operational excellence, continuous improvement, and application reliability.

Work model

We strive to provide flexibility wherever possible. Based on this role's business requirements, this is a remote position open to qualified applicants in Mississauga, Ontario, Canada. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered

  • Strong experience supporting and maintaining IBM i (AS400) applications in enterprise environments.
  • Hands-on experience with RPGLE, RPG, SYNON, COBOL, CLP, and SQL development and support.
  • Experience troubleshooting production incidents, batch processing failures, and application performance issues.
  • Experience supporting application integrations, data validation, and production support processes.
  • Strong analytical and problem-solving skills with the ability to diagnose and resolve complex technical issues.
  • Experience gathering business requirements and translating them into technical solutions.
  • Excellent communication and stakeholder management skills.
  • Ability to work effectively in a remote environment while collaborating with geographically distributed teams.

These will help you stand out

  • Experience supporting retail, merchandising, or supply chain applications.
  • Exposure to enterprise application modernization and transformation initiatives.
  • Experience mentoring junior developers or support engineers.
  • Knowledge of enterprise integration patterns and data migration processes.
  • Familiarity with Agile delivery methodologies.
  • Experience working within global delivery and onshore-offshore models.

Applications accepted until October 8th, 2026.

Salary and Other Compensation

The annual salary for this position is between CAD $74,250 and CAD $115,500, depending on experience, skills, qualifications, and other job-related factors. In addition to base salary, eligible associates may participate in Cognizant's discretionary annual incentive program, subject to the terms of the applicable plan. Pay ranges are reviewed regularly and may vary based on geographic location, market conditions, and business needs.

Benefits

Cognizant offers the following benefits for eligible associates:

  • Comprehensive health, dental, and vision benefits
  • Life insurance and disability coverage
  • Employee and Family Assistance Program (EFAP)
  • Registered Retirement Savings Plan (RRSP)
  • Paid vacation and personal days
  • Paid statutory holidays
  • Parental and family leave programs
  • Learning and development opportunities, including training and certification programs
  • Employee wellness and mental health programs
  • Associate recognition and rewards programs

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

About Cognizant
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.

Things to know before you apply

  • Work authorization: Cognizant will only consider applicants for this position who are legally authorized to work in Canada without requiring employer sponsorship, now or at any time in the future.
  • Accommodations: If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
  • AI in hiring: We use artificial intelligence (AI) tools to help us screen and assess applications more efficiently. Our team performs additional human review and ultimately decides who moves forward in our hiring process.
  • Open position: Unless otherwise stated, this job posting is for an open position on our team.
  • Language proficiency: We ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
  • Inclusion: Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include financial education, a pension plan with matching contributions, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

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Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

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Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

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Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

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Step 4: Decision time

Our team will then review each candidates’ potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us—but you can count on us to keep you updated.

CAN Brigitte
Cognizant is great for those wanting to make the world a better place, as we create solutions with top technology partners to address complex problems for our clients.
Brigitte Roy Director of Strategy Alliances
CAN Rahul
I’m supported by motivational leaders who empower me to grow in my career through learning programs, industry conferences and internal job moves. I’m proud of the career progression I’m making here.
Rahul Sathe Principal Product Architect – Insurance
Can Amita
The moment I joined Cognizant, I felt like I belonged. I was heard and empowered to challenge ideas—and I still am to this day.
Dr. Amita Oppal Gill Service Line Sales Manager
1 (2)
Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.
Debashish Mishra SAP MM Developer

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