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Systems Engineer III

Company: Arch Insurance Group, Inc.
Location: Jersey City
Posted on: September 24, 2022

Job Description:

Systems Engineer III


Arch Capital Services LLC

Job Locations

US-NC-Raleigh - US

Job ID


Business Segment


# of Openings



Information Technology

The Position

The Systems Engineer III is primarily responsible for the administration and operation of the firm's complex O365 services and AD Infrastructure setup. This role requires in-depth knowledge of MS Exchange on-prem and online, Mimecast, PowerShell and a good understanding Active Directory, Azure AD connect, Azure AD Conditional Access and other related O365 technologies (SPO, Teams, One Drive, etc.). The ideal candidate is expected to be skilled at troubleshooting, be a self-starter, and demonstrate experience in managing projects to completion.

Job Responsibilities

Develop processes and procedures to ensure managed environments maintain the highest levels of availability, security, and quality.

  • Follow all set procedures to the change management system.
  • Develop capacity forecasts for managed environments and prevent problems prior to outages.
  • Serve as an escalation point and provide guidance and direction for the resolution of escalated issues and/or complex production, application or system problems.
  • Must be able to accommodate schedule flexibility to deal with escalations and occasional changes during non-core business hours.
  • Exchange 2010/2013/2016 and Exchange online Administration
  • Ensure email services are stable, secure, and available across various Business Units (BU's) at Arch.
  • Install Exchange and set up Exchange orgs from scratch or upgrading from MS 2010 to 2013 to 2016.
  • Support multiple Hybrid Exchange environments syncing to one Multi Geo O365 tenant.
  • Lead mailbox migrations, Public Folder migrations, etc.
  • Develop strategic plans for Mail flow routing, Journaling, Email retention polices, Role based access control, etc.
  • Support merger and acquisitions to lead complex Exchange, O365 tenant and AD integrations/migrations.
  • Troubleshoot complex Mail flow scenarios to resolve P1/P2 tickets across various technologies like AAD connect, Email flow.
  • Review and suggest strategic improvements
  • Email Gateway (Mimecast) Administration:
  • Build new Mimecast tenant with standard gateway configuration.
  • Develop email gateway policies, configure SSO with Azure AD, setup DirSync with AAD.
  • Work in coordination with Mimecast, corporate information security to improve security posture.
  • Document standards and schedule KT sessions with service desk teams.
  • Active Directory
  • Plan and Deploy AD Sites and Services, Promote/Demote Domain Controllers
  • AD user migration using ADMT.
  • Support Multiple AD forests and trust between them.
  • Automate AD health checks, Identity Lifecyle management, etc.
  • Setup, configure, and administer Quest Change auditor.
  • Setup and review AD health assessments to remediate any vulnerabilities.
  • Set up and support Active Directory Certificate Services.
  • Troubleshoot AD replication and AAD connect sync issues.
  • AAD Connect
  • Setup new AAD Connect connectors.
  • Develop sync rules.
  • Upgrade AAD connect and resolve Identity conflicts.
  • Configure Password hash sync, writeback, SSO etc.
  • O365/Azure AD
  • Setup and troubleshoot AAD Conditional access policies.
  • configure Privileged Identity Manager to administer various AAD Roles.
  • Create enterprise apps to setup SSO with third party vendors.
  • Setup Multifactor Authentication.
  • Assign/reassign various O365 licenses and enable relevant services within the O365 licenses.Automation
  • Develop Powershell scripts to help automate routine tasks, monitor and generate reports on various workloads (EXO, Azure AD, Teams, SPO, O365 licensing, etc.).
  • Working experience with Github and YAML configuration.

    Required Skills/Experience

  • A minimum of 5 years of relevant experience supporting Microsoft Exchange 2010/2013/2016 and Exchange Online.
  • 5+ years of relevant practical experience managing/troubleshooting email Gateway solutions, Mimecast preferred.
  • 5+ years of strong PowerShell automation and advanced active directory experience.
  • Knowledge of Kerberos, LDAP, Active Directory, ADFS, DNS, DHCP.
  • Strong knowledge of Azure AD, Conditional Access, MFA,O365 licensing etc.
  • Expert knowledge of Windows servers, Active Directory, ADFS, GPO's in a Windows Server 2012 R2 and 2016 environment.

    Desired Skills/Experience

  • Ability to effectively plan, facilitate, and participate in meetings with employees from all organizational levels.
  • Effectively use teamwork to contribute to a high morale/high-performance team culture, leading by example.
  • Demonstrate the ability to work in an open way, willingness to share knowledge and resources and to educate others within a global team.
  • Effective team player and collaborator.
  • Strong skills in prioritization and reprioritization to react to a dynamic environment as Arch continues to evolve.
  • Excellent interpersonal and communication skills, including strong listening skills.
  • Ability to effectively communicate business and technical information to audiences with varying backgrounds.
  • Ability to communicate with offshore teams and technical development teams
  • Strong documentation and presentation skills.
  • Ability to interact with management in a professional manner.


    • Technical degree or certifications preferred but not required
    • Industry specific training or designation a plus

      The Company

      Arch Capital Group Ltd. is a Bermuda-based company which provides insurance, reinsurance and mortgage insurance on a worldwide basis. Arch Capital Services LLC provides support and expertise to entities across ACGL to help them operate effectively and efficiently. With a company culture rooted in collaboration, expertise, and innovation, we aim to promote progress and inspire our clients, employees, investors and communities to achieve their greatest potential. Our work is the catalyst that helps others achieve their goals. In short, We Enable Possibility. Our Values - to work hard and smart, embrace the power of teamwork, continually pursue innovation and improvement, exhibit honest and integrity in all we do, and strive to make a difference - define and shape our behaviors and our culture. We believe a diverse workforce and commitment to inclusivity help fuel our success. Our people are one of our greatest strengths, and we strive to attract, develop, engage and retain top talent with career opportunities and a comprehensive benefits package. Learn more about #TeamArch and #LifeAtArch on our Careers page or on LinkedIn. #LI-Remote#LI-DT1

Keywords: Arch Insurance Group, Inc., Jersey City , Systems Engineer III, Other , Jersey City, New Jersey

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