Lead System Engineer - AD M365

Company Profile:
At CGI, we’re a team of builders. We call our employees members because all who join CGI are building their own company - one that has grown to 72,000 professionals located in 40 countries. Founded in 1976, CGI is a leading IT and business process services firm committed to helping clients succeed. We have the global resources, expertise, stability and dedicated professionals needed to achieve. At CGI, we’re a team of builders. We call our employees members because all who join CGI are building their own company - one that has grown to 72,000 professionals located in 40 countries. Founded in 1976, CGI is a leading IT and business process services firm committed to helping clients succeed. We have the global resources, expertise, stability and dedicated professionals needed to achieve results for our clients - and for our members. Come grow with us. Learn more at www.cgi.com.
This is a great opportunity to join a winning team. CGI offers a competitive compensation package with opportunities for growth and professional development. Benefits for full-time, permanent members start on the first day of employment and include a paid time-off program and profit participation and stock purchase plans. We wish to thank all applicants for their interest and effort in applying for this position, however, only candidates selected for interviews will be contacted. No unsolicited agency referrals please.
Job Title: Lead System Engineer - AD M365
Position: Lead System Engineer - AD M365
Experience: 7-9 Years
Category: Infrastructure /Cloud
Location: Bangalore
Position ID:J0826-1319
Employment Type: Full-time
System Administrator Level 2/3
A highly skilled Level 2/3 System Administrator capable of managing and supporting a large, complex, and heterogeneous IT infrastructure.
The ideal candidate will have strong technical expertise, advanced troubleshooting capabilities, and an analytical mindset that enables rapid identification and resolution of issues across multiple technologies and systems.
Core Technical Skills
1. PowerShell (Advanced)
. Ability to write, analyze, and optimize advanced PowerShell scripts.
. Experience automating administrative tasks for Windows Server, Active Directory, Exchange, and Office 365.
. Familiarity with modules for: Active Directory, Exchange, Exchange Online, Azure AD, Microsoft Graph.
2. Active Directory & Identity Management
. Deep understanding of AD structure, GPOs, OUs, permissions inheritance, delegation, and domain trust relationships.
. Solid knowledge of DNS, DHCP, and other core infrastructure services.
3. Microsoft 365 / Office 365
. Knowledge of administration of Microsoft 365 tenant environments.
. Strong experience with Exchange Online, SharePoint Online, OneDrive, and Teams.
. Ability to troubleshoot hybrid identity scenarios (AAD Connect, SSO, MFA, Conditional Access).
. Understanding of licensing models and security/compliance configurations.
4. Exchange (On Prem & Hybrid)
. Administration and troubleshooting of Exchange Server environments.
. Hybrid configuration experience.
. Mail flow diagnostics, connector troubleshooting, certificate management.
. Good knowledge of Windows server administration
. Good knowledge of vulnerability and patch management process and tools
. Familiarity with VPN technologies and site to site connections.
. Solid understanding of TCP/IP, routing, VLANs, DNS, DHCP, and firewall rules.
. Ability to analyze network related issues impacting authentication, mail flow, connectivity, or cloud services.
. Familiarity with VPN technologies and site to site connections.
Complementary Skills (Highly Desired)
. Knowledge of virtualization platforms (VMware, Hyper V).
. Experience with endpoint management tools (Intune, SCCM, GPO based automation).
. Familiarity with backup and disaster recovery solutions.
. Knowledge of Software deployment tools
. Ability to read and interpret logs across different systems and services.
ITIL & ServiceDesk Experience
. Familiarity with ITIL framework, especially Incident, Problem, and Change Management processes.
. Experience working with ServiceDesk systems (e.g., ServiceNow, Jira Service Management, ManageEngine, or equivalent).
. Ability to document incidents thoroughly, follow escalation paths, and comply with SLAs.
. Skilled in prioritizing and categorizing tickets according to business impact and urgency.
. Capable of contributing to root cause analysis (RCA) and preventive actions.
Analytical & Problem Solving Skills
. Strong ability to quickly diagnose complex infrastructure issues.
. Capacity to correlate symptoms from multiple systems (network + AD + M365 + endpoints).
. Logical, structured approach to troubleshooting.
. Ability to work under pressure, with minimal supervision, in dynamic environments.
Soft Skills & Work Style
. Strong English communication abilities are mandatory, both written and verbal.
. Team player with a proactive approach to identifying and preventing issues.
. Ability to document systems, procedures, and troubleshooting steps.
Experience Requirements
. 3–7 years of experience in a similar role (L2/L3 System Administrator, Infrastructure Engineer, etc.).
. Hands on experience managing medium to large scale infrastructures.
. Proven track record of handling complex incidents end to end.
TARGETED ACTIVITIES
. For patch management and vulnerability management including qualys operational and reporting area
.
. For general administration of windows servers including incidents and debugging
.
. For remediation of users creation/modification process by respect to the whole chain BRD HR à HR Gate à SG apps
.
. Analyse of incidents on the exchange online BRD side, distribution lists and shared mailboxes incidents

Your future duties and responsibilities

Required qualifications to be successful in this role

Together, as owners, let’s turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.
Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.
Come join our team—one of the largest IT and business consulting services firms in the world.