.Description :Senior IT Systems EngineerWhat's in Marsh for you?A company with a strong brand and results to match.Opportunity to interact with different areas of Marsh and career growth.Employee resource groups that provide access to leaders, relevant volunteer and mentoring opportunities, and interactions with counterparts in industry groups and the client organization.What is in it for you?A competitive salaryEmployee friendly policiesHealth care and insurance for you and your dependantsHealthy Work life balanceA great working environmentFlexible benefits packages to suit your needs and lifestyleWe will count on you to :Provide support to help ensure application availability, reliability and stability and assist with the documentation of root cause analysis of some in-scope, routine incidents.Support the implementation of application performance improvement initiatives and provide assistance to other technical groups on process improvement initiatives, as necessary.Under general supervision, provide engineering support and technical evaluation of application software and middleware, as well as provision of support and technical evaluation of software components.Perform assigned activities to help improve service efficiency and effectiveness.Participate in cross-OpCo technical design and engineering projects, as directed by manager/supervisor.Plan & perform major version upgrades of application and web servers such as Tomcat, Apache Web Server, etc.Follow change control processes to support application releases.Remediate application and software related security vulnerabilities.Create and maintain technical documents such as knowledge base articles, infrastructure diagrams, and FAQs.Perform routine housekeeping and health monitoring. Write Linux/UNIX Shell Scripts as and when needed for monitoring, recycling, automating tasks, etc.Support and resolve issues like application recycles, disk space issues, process hung, port conflict, logs archiving, SSL certificate expiry, etc. on Linux platform.Work on putting together and submitting infrastructure related requests, such as DNS registration, SSL certs etc.Candidate must be flexible in terms of working hours due to the nature of the role providing 24X5 weekdays support and weekend On-Call support on a rotational basis.Willingness to work on weekends to support application releases and maintenance is required.Requirements :5-7 years of experience in System Engineering providing Project and System support across a portfolio of business applications and systems focusing on supporting Client Facing Web ApplicationsStrong knowledge in Linux & Windows Fundamentals and AdministrationStrong knowledge of WebLogic, Oracle Fusion, Apache, Nginx webserver, JavaScript and Windows Server/IIS administrationStrong knowledge of cloud computing technologies and environments as well as experience with container systems (Docker) and container orchestration (e.G. Kubernetes)A good awareness of Microsoft