Custom Application Architect

Accenture
Accenture

IT · Full-time

Mississauga, ON, Canada

CAD 82,600-132,600 / year

Posted on Nov 3, 2026

Custom Application Architect

Custom Software Engineering Associate Manager | Mid-Level | Full time
Job No. R00365971 | Mississauga, Ontario
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We are:

The Advanced Technology Centers (ATCs) are the engine for reinvention in our clients’ transformation journey. Powered by more than 255,000 people across 24 countries, ATCs provide our clients with seamless access to industry insights and innovative technology solutions.


Stronger together!

The Advanced Technology Centers (ATCs) make a tremendous impact in solving our clients’ business problems by leveraging innovation, intelligence, industry insights, new IT, and new technology skills. With the global environment changing at a faster pace, our clients are facing unprecedented challenges, and they need us more than ever before. As a Network, ATCs are positioned to unlock greater opportunities and exponential value for our clients.


The value for our clients and our people:

For our clients, the Network provides the strength of our geographic diversity, greater resilience, and seamless access to the deepest industry knowledge, the latest in Gen AI solutions, and tech expertise from around the world.

For our people, it brings an opportunity to shape truly boundaryless career paths in a highly collaborative team of experts where they can learn from each other and solve the world’s most complex client challenges.


You Are
An experienced Mainframe Developer with a strong background in COBOL, JCL, DB2, CICS, and VSAM, ideally within Canadian retail banking or retail investments. You bring strong analytical and troubleshooting skills, hands-on mainframe expertise, and experience supporting complex, business-critical applications.


Key Responsibilities

  • Design, develop, test, and maintain applications using COBOL, JCL, DB2, and CICS
  • Build and optimize batch processing for account processing, interest calculation, fee assessment, investment transactions, income distributions, and tax slip generation (T3, T5, T4RSP/RIF, NR4)
  • Develop online transactions and interfaces for branch, advice, digital, and call-centre channels
  • Convert functional specifications into technical designs, and perform impact analysis and code reviews
  • Troubleshoot production incidents including abends, data issues, and batch delays; participate in on-call support
  • Support integration with distributed systems via MQ, APIs, and z/OS Connect
  • Deploy changes using change and release management tools, following SDLC and ITIL processes
  • Maintain technical documentation, runbooks, and operational procedures
  • Adhere to security, audit, and regulatory controls, including data privacy and segregation of duties
  • This role requires a minimum of 3 days per week of on-site presence in Mississauga.

Here’s What You Need

  • Atleast 5–10+ years of hands-on mainframe development experience, with strong exposure to Canadian retail banking and/or retail investments
  • You bring strong proficiency in COBOL, JCL, DB2 (including SQL and performance tuning), CICS, and VSAM
  • You bring experience working with DFSORT/SYNCSORT, REXX, and enterprise scheduling tools such as CA-7, Control-M, or TWS
  • You bring hands-on experience using debugging and data analysis tools such as Xpediter, Abend-AID, File-AID, and Fault Analyzer
  • You bring experience developing and maintaining COBOL programs and copybooks in IDz, including use of the z/OS Connect toolkit to map OpenAPI JSON schemas to backend data structures such as COMMAREA and containers
  • You bring experience integrating z/OS Connect adapters with CICS, IMS, and Db2 subsystems, and using IDz interactive tools to debug and trace API execution on z/OS
  • You should bring experience with source code and release management tools such as Endevor, ChangeMan, or Git-based platforms
  • You bring a strong understanding of batch processing windows, SLAs, restart/recovery design, and data reconciliation
  • You bring strong analytical thinking, problem-solving, and troubleshooting skills
  • Bachelor’s degree in Computer Science, Computer Systems Engineering, Software Engineering, or a closely related field

Bonus points if:

  • You bring experience working with a major Canadian bank, investment dealer, or fund company
  • You should bring knowledge of retail investment processing, including mutual fund trades, Fundserv messaging, registered plan contributions and withdrawals, withholding tax, and year-end slips
  • You bring exposure to IMS, PL/I, or Assembler
  • You should bring experience with mainframe DevOps tools and practices, including Zowe, Jenkins, IBM DBB, and IBM Z Open Development
  • You bring familiarity with modernization initiatives, including mainframe-to-cloud integration and API enablement
  • You should bring an understanding of OSFI technology and cyber risk expectations (B-13) and third-party risk guidelines (B-10)


Compensation at Accenture varies depending on a wide array of factors, which may include but are not limited to the specific office location,
role, skill set, and level of experience. As required by local law, Accenture provides a reasonable range of compensation, based on full-time
employment, for roles that may be hired as set forth below.
The recruiting efforts for this position are intended to fill a brand new position.
The base pay range shown below is intended as a guideline to reflect the majority of offers for this role.
It does not represent a maximum limit — in some cases, actual compensation may exceed the range where appropriate.Information on benefits is here.


Role Location: British Columbia/Ontario/New Brunswick Annual Salary Range: $82,600 to $132,600

Mississauga, Ontario

Requesting an Accommodation

Accenture is committed to providing equal employment opportunities, including reasonable accommodation when needed. If you are hired by Accenture and require accommodation to perform the essential functions of your role, you will be asked to participate in our reasonable accommodation process. Accommodations made to facilitate the recruiting process are not a guarantee of future or continued accommodations once hired.

If you require accommodation during the recruitment, assessment or selection process for a disability or other protected ground under applicable human rights legislation, please notify your recruiter or contact us toll free at 1 (877) 889-9009.

Equal Employment Opportunity Statement

All employment decisions shall be made without discrimination based on any characteristic protected by applicable federal, provincial or territorial human rights legislation, including age, race, creed, color, ethnic origin, religion, sex, place of origin, ancestry, disability status, sexual orientation, gender identity or expression, genetic information, marital status, family status, citizenship, record of offences (where applicable) or any other protected ground.

Job candidates will not be obligated to convictions for which a record suspension (formerly known as a pardon) has been granted, except as permitted or required by applicable law.

Accenture is committed to supporting current and former members of the Canadian Armed Forces and other veterans.

Please read Accenture’s Recruiting and Hiring Statement for more information on how we process your data during the Recruiting and Hiring process.

Other Employment Statements

It is currently our objective to assign our people to work near where they live. However, given the nature of our business and our need to serve clients, our employees must be available to travel when needed.

To provide you with the most effective recruiting process, Accenture may use artificial intelligence to create insights on how your candidate information matches the requirements of the role you have applied to. The final decision will always be taken by the hiring team after considering your candidate profile in full. During the application process, you can choose to opt out of this artificial intelligence screening process and be rest assured that this will not negatively impact your opportunity for employment with Accenture.

We work with one shared purpose: to deliver on the promise of technology and human ingenuity. Every day, more than 775,000 of us help our stakeholders continuously reinvent. Together, we drive positive change and deliver value to our clients, partners, shareholders, communities, and each other.

We believe that delivering value requires innovation, and innovation thrives in an inclusive and diverse environment. We actively foster a workplace free from bias, where everyone feels a sense of belonging and is respected and empowered to do their best work.

At Accenture, we see well-being holistically, supporting our people’s physical, mental, and financial health. We also provide opportunities to keep skills relevant through certifications, learning, and diverse work experiences. We’re proud to be consistently recognized as one of the World’s Best Workplaces™.

Join Accenture to work at the heart of change. Visit us at www.accenture.com.

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