System Engineer (M365, Active Directory)

UST; Mumbai; On-site; INR 1,400,000 - 2,300,000; Full time

Job summary

UST is seeking a Senior Systems Engineer to design, deploy, and optimize hybrid IT environments spanning on‑premises infrastructure, Azure, M365, VMware, and Active Directory. You will lead cross‑functional collaboration, ensure security, reliability, and high performance across systems.

The role requires expertise in cloud and on‑premises administration, strong hands‑on technical capabilities, and proactive problem‑solving across IT operations. A Bachelor’s degree in CS/IT is expected.

Qualifications

• 5+ years of hands-on experience in systems engineering or infrastructure administration.
• Experience managing hybrid on-premises and cloud environments.
• Proven expertise with enterprise virtualization, Azure infrastructure services, and AD.

Responsibilities

• Design, deploy, configure, and maintain on‑premises server infrastructure across physical/virtual environments.
• Administer and optimize VMware virtualization platforms, including clustering and performance.
• Monitor health, capacity, and performance; proactively resolve issues.
• Manage hardware lifecycle: provisioning, patching, upgrades, decommissioning.
• Collaborate with end users and app teams to troubleshoot infrastructure issues.
• Design, deploy, and manage Microsoft Azure infrastructure and cloud resources.
• Administer MS 365 services for availability and user productivity.
• Manage Active Directory and hybrid identity environments.
• Provide on‑call support and maintain runbooks/documentation.

Skills

M365

Azure

VMware

Active Directory

Education

Bachelor’s degree in Computer Science/IT

Job description

Role Description

Job Summary

We are seeking an experienced and highly motivated Senior Systems Engineer to join our IT Infrastructure team. In this role, you will be responsible for the design, deployment, maintenance, and optimization of hybrid IT environments spanning on-premises infrastructure, Microsoft Azure, Microsoft 365, VMware virtualization platforms, and Active Directory services. The ideal candidate brings strong hands-on technical expertise, a proactive mindset, and the ability to collaborate effectively across teams to ensure secure, reliable, and high-performing systems.

Key Responsibilities

Infrastructure & Systems Management

• Design, deploy, configure, and maintain on-premises server infrastructure across physical and virtual environments.
• Administer and optimize VMware virtualization platforms, including host clustering, resource management, and workload performance.
• Monitor system health, capacity, and performance, proactively resolving issues before they impact operations.
• Manage hardware lifecycle activities, including provisioning, patching, upgrades, and decommissioning.
• Collaborate with end users and application teams to troubleshoot infrastructure-related issues.

Azure Cloud & Microsoft 365 Operations

• Design, deploy, and manage Microsoft Azure infrastructure and cloud resources.
• Support Azure-based workloads, migrations, backup, disaster recovery, and hybrid cloud connectivity initiatives.
• Administer and support Microsoft 365 services, ensuring availability, performance, and user productivity.
• Manage hybrid identity environments integrating Active Directory with cloud identity services.
• Monitor service health, usage, and capacity across Azure and Microsoft 365 environments.

Active Directory Administration

• Manage and maintain Active Directory services, ensuring secure authentication and access management.
• Support directory synchronization and hybrid identity integrations.
• Maintain user, group, and organizational unit administration in alignment with operational requirements.

Network Support

• Support infrastructure teams with Routing & Switching activities related to connectivity, performance, and troubleshooting.
• Work with network fundamentals including TCP/IP, DNS, DHCP, VLANs, and related infrastructure services to ensure stable operations.

Collaboration & Support

• Serve as an escalation point for complex infrastructure incidents and service requests.
• Participate in on-call support for critical infrastructure systems when required.
• Partner with application teams, security teams, and vendors to deliver reliable infrastructure solutions.
• Maintain system documentation, operational procedures, and technical runbooks.

Required Skills

Proficient

• M365
• Azure
• VMware
• Active Directory

Intermediate

• Routing & Switching

Experience

• 5+ years of hands-on experience in Systems Engineering or Infrastructure Administration roles.
• Proven experience managing and supporting hybrid (on-premises and cloud) IT environments.
• Demonstrated experience with enterprise virtualization platforms and Microsoft Azure infrastructure services.

Education

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience.

Core Competencies

• Analytical Problem-Solving
• Technical Depth & Curiosity
• Attention to Detail
• Clear Communication
• Collaboration & Teamwork
• Ownership & Accountability

Work Environment

• Primarily office-based with potential for hybrid work arrangements depending on organizational policy.
• Occasional work in data center environments.
• Participation in an on-call rotation for critical infrastructure support.

Skills

Microsoft Azure, VMware vSphere, Windows Server