Company InformationAtos is a leader in digital services with annual revenue of € 12 billion and 100,000 employees in 72 countries. Serving a global client base, Atos offers Consulting & Systems Integration, Managed Services & BPO, Cloud, Big Data & Cyber-security solutions. With deep technology expertise and industry knowledge, Atos works with clients across many business sectors: Defense, Financial Services, Health, Manufacturing, Media, Utilities, Public Sector, Retail, Telecommunications, and Transportation.Atos is focused on business technology that powers progress and helps organizations to create their firm of the future. In addition, Atos is the Worldwide Information Technology Partner for the Olympic & Paralympic Games and operates under the brands Atos, Bull, Canopy, Unify and Worldline.Atos offers a broad professional perspective and the opportunity to build a rewarding career across either the technical or business paths. With our worldwide presence and our broad range of professional services, Atos provides training programs across all our competencies and markets worldwide for employees in all stages of their career. In addition, we offer programs that are focused on engaging and developing people who are at the beginning of their career through internships and graduate opportunities. For more information, please see the Atos corporate web site: www.atos.net.Atos is an EEO employer, providing employment opportunity regardless of race, color, religion, sex, age, national origin veteran status, disability or other factors protected by law. Job DescriptionJob DescriptionResponsible for administration of MS Exchange 2007 through 2016 including O365 in a large enterprise class, high availability global messaging environment. Working within Atos Messaging team and coordinating with cross-functional infrastructure teams to provide primary operations support for e-mail. The Senior Exchange Administrator will provide guidance and assistance to less experienced team members, and will be responsible for the more complex administration duties and projects.Job ResponsibilitiesIdentify and perform the daily operational tasks that are necessary to provide a stable and robust Exchange/Skype environments, including monitoring, proactive maintenance, and problem resolution.Provide tier three troubleshooting support of Exchange issues; investigate user escalation calls, finding optimum solutions for both users and the company.Perform scripting administration tasks and reporting using Powershell or other scripting technology, developing scripts for automating processes within the environment.Represent the department to other groups in the company and with external vendors. Facilitate and/or coordinate interactions with these parties as needed to deliver results.Take ownership of the most complex messaging issues and work to resolution and root cause identification.Provide on-call support for the corporate messaging environment.Participate in weekend maintenance activities, as required.Assess and perform systems utilization and headroom reports to assist in troubleshooting and performance tuning.Create and maintain appropriate documentation on the messaging environment.Assist in defining and coordinating team projects and activities.Help ensure team performance meets or exceeds defined Service Level Agreements.Analyze new technologies and advise management on suitability.Maintain & perform periodic testing of disaster recovery procedures for the MS Exchange, Lync and BES environments.Maintain and administer third party applications including, but not limited to, Blackberry Enterprise Server, Symantec eVault etc. Create appropriate documentation for application deployment, configuration, and related processes.Adhere to and help enforce change management and compliance processes.Work with key business users to understand the business requirements and identify potential messaging solutions. Job Requirements Skills, Knowledge, & ExperienceProven troubleshooting skills and ability to understand complex relationships between components of multi-tiered and distributed mail systems.Strong understanding of mail dependencies with DNS, routing, relays, and emerging technologies around encryption, TLS, SPFProficiency with load balancers/proxies such as IIS web technology with Microsoft TMG/ARR/CAS etc.Antivirus product experience in a messaging environment such as McAfee MSME and MS EOP.Possess excellent interpersonal, verbal and written skills: ability to clearly and concisely articulate issues, alternatives, and recommendations.Flexible, adaptable, and able to manage multiple tasks in a dynamic, high-pressure, fast-paced environment.Self-driven and be able to work independently with minimal supervision.Experience in a user-focused technical-support environment.ITIL Foundations knowledge.Qualifications Work EnvironmentMinimum of 7 years experience in an enterprise MS Exchange environment (5,000+ mailboxes).Relevant Microsoft certification (MCTS/MCITP/) is a plus.Bachelor’s degree (B.S./B.A.) in Computer Science, Business Information Systems, or related field is desired. * Available for off hours escalations as part of an on-call support rotationLittle to no travel required (