We are currently seeking a Senior Infrastructure & ITSM Platform Engineer to join our team on a Hybrid model in Ottawa, ON, Canada. Project Summary The client requires professional services to support and maintain an enterprise ITSM platform based on IFS assyst, including implementation of approved enhancements and ongoing system improvements. The role will also support migration activities to a modernized ITSM toolset (ITSMv2) and contribute to service improvement initiatives. The environment is built on ITSM and ITIL best practices and includes integrated technologies such as Liferay, Java-based components, and secure enterprise infrastructure across designated and classified domains. The contractor will be responsible for ensuring system stability, performance, and availability while supporting modernization efforts and evolving business requirements. Responsibilities Maintain and support Linux-based server infrastructure for the IFS Assyst platform, ensuring stability, security, and availability. Perform OS patching, upgrades, and infrastructure maintenance across platform, application, and OS layers. Plan and execute infrastructure upgrades and lifecycle activities, including platform and application components. Monitor and optimize server performance (CPU, memory, storage, network) and manage capacity, storage, and data archiving. Support database operations including performance monitoring, backups, recovery, and disaster recovery testing. Diagnose and resolve infrastructure, system, and performance issues, including support for planned outages and after-hours maintenance. Ensure integration and interoperability across enterprise systems, including CMDB and external interfaces. Support enterprise application components including Liferay, Java-based services, XML/PDF forms, and authentication systems (e.g., Kerberos). Participate in structured change and release management processes within a controlled enterprise environment. Support migration activities to the new ITSM toolset, including data integration and CMDB alignment. Contribute to infrastructure modernization initiatives (e.g., containerization and platform improvements). Create and maintain infrastructure documentation, scripts, and configuration records. Collaborate with application and support teams to ensure effective infrastructure use and alignment. Review and optimize infrastructure design for performance, reliability, and scalability. Monitor technology trends and recommend infrastructure improvements aligned with enterprise direction. Mandatory Qualifications 5+ years of experience in Linux system administration and enterprise infrastructure management and support, including patching, upgrades, performance tuning, and disaster recovery. 5+ years of experience operating and maintaining enterprise IT platforms in production environments, working in large-scale environments (e.g., 50,000+ users or complex enterprise systems). 5+ years of experience working in complex integrated environments with multiple platforms (e.g., Liferay, Java-based, XML-based interfaces, or similar enterprise application stacks). 2+ years of experience supporting enterprise ITSM platforms (e.g., IFS Assyst or ServiceNow or similar ITSM tools). Must hold a valid Secret Security Clearance with the Government of Canada. Must be located in the National Capital Region (Client) and able to work in a hybrid model (Ottawa/Gatineau). Must have a College Diploma or University Degree in an IT discipline or similar. Assets / Nice to Haves Experience with Liferay or portal technologies. Experience with Authentication frameworks (e.g., Kerberos). Experience with SSL/TLS certificate management. Experience supporting system migrations or platform modernization initiatives (e.g., containerization). ITIL Certification. Bilingual in English and French. NTT DATA Services is an equal opportunity employer and considers all applicants without regard to race, color, religion, citizenship, national origin, ancestry, age, sex, sexual orientation, gender identity, genetic information, physical or mental disability, veteran or marital status, or any other characteristic protected by law. We are committed to creating a diverse and inclusive environment for all employees. If you need assistance or an accommodation due to a disability, please inform your recruiter so that we may connect you with the appropriate team. Where required by law, NTT DATA provides a reasonable range of compensation for specific roles. The starting hourly range for this remote role is (placeholder) . This range reflects the minimum and maximum target compensation for the position across all US locations. Actual compensation will depend on several factors, including the candidate's actual work location, relevant experience, technical skills, and other qualifications. This position is eligible for company benefits that will depend on the nature of the role offered. Company benefits may include medical, dental, and vision insurance, flexible spending or health savings account, life, and AD&D insurance, short-and long-term disability coverage, paid time off, employee assistance, participation in a 401k program with company match, and additional voluntary or legally required benefits. #J-18808-Ljbffr