Systems Engineer

We are assisting a client with hiring a Senior Level M365 Systems Engineer to work onsite in Plano, TX. Salary - $120,000 - $140,000.

The Senior Systems Engineer is a senior-level infrastructure professional responsible for the design, implementation, operation, and continuous improvement of enterprise systems across a global, multi-office environment. This role requires deep hands-on technical expertise combined with the ability to lead by example, guide other engineers, and take ownership of complex technical outcomes.

This position is suited for a senior engineer who enjoys staying close to the technology, proactively solving problems, and supporting a team to deliver reliable, secure, and scalable infrastructure., Core Engineering Responsibilities

• Design, build, operate, and support Cloud infrastructure (M365)
• Serve as a senior technical escalation point (Tier 3) for complex infrastructure issues, including incident response and root-cause analysis
• Install, configure, and maintain hardware, software, and cloud services across enterprise environments
• Monitor system performance, availability, and storage utilization, and proactively address risks, capacity issues, and technical debt
• Plan and execute system upgrades and improvements to support growth, stability, and security
• Implement and maintain security standards and controls across infrastructure platforms
• Maintain accurate and up-to-date technical documentation, standards, and procedures

Automation & Platform Improvement

• Support and implement automation initiatives to improve reliability, efficiency, and consistency
• Manage and support open-source platforms and tools used within the infrastructure environment
• Continuously evaluate and improve tooling, monitoring, and operational processes

Team Collaboration & Leadership

Provide technical guidance and mentoring to systems administrators and engineersSupport team members by reviewing designs, assisting with complex troubleshooting, and sharing best practices. Coordinate with cross-functional teams to deliver infrastructure projects and operational improvements. Support escalated helpdesk requests when required. Work flexibly with Asia and Brazil time zones to support global operations

• Bachelor's degree in Computer Science or a related field
• Relevant certifications such as Microsoft, VMware, NetApp, or Commvault are desirable

Experience

• 9-12 years of experience in enterprise IT or infrastructure engineering roles
• Demonstrated experience working in global, multi-site environments
• Proven ability to independently own and deliver complex technical solutions

Technical Skills

Strong experience with hybrid cloud environments, including:

• VMware and Hyper-V virtualization platforms
• Administration of Microsoft M365 services (Hybrid Exchange, SharePoint Online, Teams, OneDrive, Intune) using PowerShell
• Strong programming /scripting skills
• Strong experience with backup, restore, and disaster recovery solutions
• Administration of Windows Server operating systems
• Management of Active Directory, Group Policy, DNS, DHCP, and hybrid identity environments
• Support of Exchange Server (on-premises and cloud) hybrid environments
• Experience managing NAS and SAN storage platforms
• Experience supporting Kubernetes (K8s) environments
• Working knowledge of networking fundamentals, including TCP/IP, LAN/WAN, VPN/SSL, and endpoint security
• Experience with monitoring platforms such as Zabbix, including dashboards and alerting
• Management of SCCM/MECM, OS imaging, compliance baselines, and WSUS patching
• Strong troubleshooting skills across servers, endpoints, virtualization, backups, and cloud platforms

Professional Attributes

• Strong verbal and written communication skills
• Highly organized with the ability to manage priorities and time effectively
• Proactive, self-motivated, and comfortable working independently
• Strong analytical and problem-solving skills with attention to detail
• Collaborative mindset with the ability to work effectively across global teams
• Comfortable taking ownership and accountability for technical outcomes
• Enthusiastic about learning and adopting new technologies
• Ability to clearly explain technical concepts to both technical and non-technical audiences
• Preferred bilingual: Mandarin