Senior S4/HANA BASIS Consultant

Status: Permanent Full Time

Education Level: A 4 year university degree in Computer Science, Software Engineering.

Base Location: Oshawa, ON

Shift:Days

Travel:10%

Deadline to Apply:July 6, 2026

Salary Range:$1,764.34 - $2,663.56 Per Week

Electrify your career and help build a brighter tomorrow.

Every generation has a challenge that defines them. At OPG, we are calling on all innovators, disruptors, thought leaders and change-makers. Join us as we work to electrify life in one generation and build a sustainable future powered by our electricity, our ideas, and our people. Join OPG and make history.

Whether you work in the skilled trades or are a business professional, a career at OPG is an opportunity to electrify your life on -- and off -- the job.

JOB OVERVIEW

Ontario Power Generation (OPG) is looking for a dynamic, strategic and results-driven professional to join our team in the role of Senior S4/HANA BASIS Consultant.

Reporting to the Manager, IT Product Delivery, this position is responsible to partner with business, compliance, and technical teams to deliver secure access, maintain strong controls, and support audit-ready processes while enabling delivery teams during implementations and releases.

The Senior S/4HANA BASIS Consultant is responsible for the technical integrity, performance, and security of the SAP landscape. This role drives the installation, configuration, upgrading, and maintenance of SAP S/4HANA systems, ensuring maximum uptime and optimal performance. As a senior member, you will lead complex projects (conversions, migrations, BTP integration), provide architectural guidance, mentor junior team members, and ensure compliance with "clean core" strategies.

KEY ACCOUNTABILITIES

• S/4HANA Administration & Maintenance: Lead the installation, configuration, upgrade, and patching (kernel, Support Packages, Notes) of SAP S/4HANA and HANA databases
• Provide production support of ECC 6 systems.
• Provide support of ICFR audits
• Performance Tuning: Monitor system health (using SAP HANA Cockpit/Solution Manager, CloudALM) and optimize database/application performance, including memory management and SQL tuning.
• Landscape Management: Oversee system copies, client refreshes, transport management (TMS/CTS+), and cross-landscape changes (CloudALM).
• Cloud & Hybrid Management: Manage SAP systems in hybrid or pure cloud environments (RISE with SAP, Azure), including SAP BTP connector configuration.
• Security & Compliance: Ensure system security, manage user authorizations/roles, and implement compliance audits, including SAML/SSO configuration.

QUALIFICATIONS

• Requires a 4-year university degree in Computer Science, Software Engineering, and minimum of over 6 years and up to and including 8 years is considered necessary to gain this experience.
• Requires eexperience in SAP security/authorizations supporting SAP S/4HANA and/or SAP ECC.
• Requires working experience supporting a multi-system SAP landscape with exposure to: BTP, BDC, Cloud ALM, GRC, and/or IAG.
• Requires practical experience with SAP authorization concepts (roles, profiles/authorizations, user administration, troubleshooting).
• Requires understanding of Segregation of Duties (SoD) principles and access governance controls.
• Requires strong communication skills with the ability to work effectively with business users, technical teams, and auditors.
• Requires strong organizational skills-able to manage multiple access requests, incidents, and project tasks concurrently.
• Requires hands-on experience with SAP IAG and/or SAP GRC Access Control (ARA, BRM, EAM/Firefighter, workflows).

The successful candidate will exhibit uncompromising integrity and commitment to upholding corporate values, and the OPG Code of Business Conduct.

OPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the selection process, please contact

What makes a career at OPG different?

With operations across Ontario, OPG is one of the most diverse power producers in North America. As the largest generator in Ontario, we meet approximately 50% of the province’s electricity needs, largely from low-carbon sources like nuclear and hydro.

As we work to achieve our vision of Electrifying life in one generation, OPG and our family of companies are also helping advance the development of new low-carbon technologies such as Small Modular Reactors (SMRs), refurbishment projects, and electrification initiatives to help power the growing demands of a growing economy. Join OPG and make history.

Please submit your applicationonline at.OPG thanks all those who apply; however, only candidates considered for an interview will be contacted.

#LI-Hybrid

Please note: All job postings at OPG are to fill existing vacancies within our organization.

OPG may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.

The base salary range considers many factors including, but not limited to experience, education, and training, including any collective agreement requirements for union represented positions. It is not typical for the salary to be offered near the top of the range, and salary is dependent on numerous factors. For management roles, the base salary range does not represent the total compensation package. The total compensation package for regular full-time management roles includes pay-for-performance programs for annual and medium time periods. Maintaining a high-performance culture and excellence is a core expectation of every member of our leadership team and is rewarded through the established compensation framework.

OPG is committed to employment equity. As such, we encourage applicants from equity-seeking communities (Indigenous Peoples, racialized persons, persons with disabilities, and women). We strongly believe that alleviating the under-representation of equity-seeking individuals will create a stronger OPG team and allow us to better serve the needs of our diverse communities.

In order to fulfill the above-mentioned purpose, priority in hiring may be given to qualified persons who self-identify as a member of equity-seeking groups as identified in the application process. This initiative constitutes a special program under the Human Rights Code/Canadian Human Rights Act.