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Sr. Security Engineer, Active Directory

Comcast brings together the best in media and technology. We drive innovation to create the world s best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative and fascinating businesses and create career opportunities across a wide range of locations and disciplines. We are at the forefront of change and move at an amazing pace, thanks to our remarkable people, who bring cutting-edge products and services to life for millions of customers every day. If you share in our passion for teamwork, our vision to revolutionize industries and our goal to lead the future in media and technology, we want you to fast-forward your career at Comcast.

This position is part of the Workplace IT Experience team focused on evolving internal IT services for reliability, agility and user experience. The role focuses on Active Directory collaboration with Security partners and their integrated infrastructure including both on premise and cloud-based solutions. Responsibilities include infrastructure and enterprise solutions research, design and prototyping primarily focused on evolving on premise infrastructure, further migration to cloud services in Office 365, voice and video collaboration, productivity, wireless user experience, mobility, remote access, security, monitoring and automation.

Core Responsibilities:

The successful candidate will need to be able to communicate effectively across the business stakeholders set, work closely with technical resources guiding design and deployments, agilely execute technology research and trade studies, and take a leadership role in evolving the enterprise Workplace IT Experience platform. Possess the ability to design, engineer and operationally support Active Directory (AD) Services, Enterprise Email Services, and Skype for Business in a large enterprise infrastructure. Familiarity with Azure, Office 365 and hybrid integration into the enterprise. Concentration on Active Directory Services and integrated Security technologies include:

Required Skills for this work shall include:

  • Systems architecture, engineering and operational support of Active Directory (AD) Services, in a large enterprise infrastructure. Familiarity with Office 365 and hybrid integration into the enterprise with Concentration on Active Directory Services.
  • Active Directory Services - provide centralized authentication, authorization, directory, and policy to control user and computer configurations including (but not limited to):
    • PowerShell scripting for AD administration
    • Kerberos-based Authentication
    • Lightweight Directory Access Protocol (LDAP): Support for LDAPv2 and LDAPv3
    • Claims-based authentication using ADFS 3. 1/2016
    • Azure Active Directory Connect and Directory Synchronization
    • Azure Active Directory and other cloud administration
    • Microsoft AD PKI Administration support
    • Identity Management platforms such as FIM/MIM
    • IPv6 on Windows Servers
    • DNS-based naming and other information
    • Centralized administration and delegation of authority
    • Information security and single sign-on (SSO) for user access to network based resources

Proven functional experience in the following areas are critical to its success:

  • Focuses on architecting, building, deployment, services, systems, and tools.
  • Drives standardization and service focused instrumentation. Provides subject matter expertise.
  • Resolves break/fix scenarios, engaging broader teams as necessary and partners/leads vendors and regions to achieve continuous improvement.

Education Level: Bachelor s Degree or Equivalent

Field of Study: Engineering, Computer Science

Certifications: MCSE and/or ITIL is a plus

Years Experience: Generally, requires 7-11 years related experience

Core Skills:

Responsible for building, managing, operating, and continuously improving Systems, Storage, Database, and/or Tools Infrastructure that support Comcast's customer facing applications, back-office, and provisioning infrastructure in a 24/7 environment. Focuses on architecting, building, deployment, services, systems, and tools. Drives standardization and service focused instrumentation. Provides subject matter expertise. Resolves break/fix scenarios, engaging broader teams as necessary and partners/leads vendors and regions to achieve continuous improvement.

  • Develops solutions for very complex and wide-reaching systems engineering problems.
  • Operating Systems & Disk Management responsibilities: Provides in-depth knowledge of Operating System internals to aid in troubleshooting complex problems.
  • Storage and Backup responsibilities: Sets up, troubleshoots, and tunes complex SAN software issues.
  • Scripting responsibilities: Proficient at scripting with PowerShell. Utilizes professional best practices in day-to-day work like revision control, unit testing, or other.
  • Networking responsibilities: Recommends or helps architect an entire system, including network design and topology. Knowledge of load-balancing technologies is a plus.
  • Application Technologies responsibilities: Provides expert recommendations and advice to the team and/or department in the areas of web services, OS, and storage, including being an active liaison to Development, QA, and the Business.
  • Crisis Management/Troubleshooting - Analyzes systems and makes recommendations so problems do not happen in the first place. Takes lead on issue resolution activities, using knowledge of complex and company-wide systems.
  • Change Management - Foresees issues and impact of change prior to the implementing the change.
  • Monitoring, Metrics and System Quality - Leads end to end audit of monitors and alarms based on subsystem knowledge.
  • Capacity Management - Analysis encompasses entire network of systems. Leads the development of complex scaling models for capacity planning and financial understanding
  • Time Management - Ability to multi-task and prioritize with little to no supervision. Can provide team leadership skills for further gains in efficiency.
  • Project Management - Oversees technical details of project from inception to launch, integrating known lessons-learned, and feeds new lessons learned back into common repository. Delegates to other technical resources while setting direction
  • Communication - Provides feedback for organization-wide issues. Documents processes and procedures to be used by a wide audience. Be able to articulate expertise of various subsystems.
  • Ownership - Takes ownership of policies and procedures that the organization uses, and adjusts accordingly based on feedback and observations. Acts as a mentor to more junior technical staff.
  • Training - Takes a diverse set of training beyond immediate technical domain.
  • Consistent exercise of independent judgment and discretion in matters of significance.
  • Regular, consistent and punctual attendance. Must be able to work nights and weekends, variable schedule(s) as necessary.

Comcast is an EOE/Veterans/Disabled/LGBT employer



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