Senior Systems Engineer

Senior Systems Engineer (L3)

Location: Connecticut USA (Hybrid / On-site as required)
Type: Full-Time
Company: Netsurit Global Managed Services Provider

If Microsoft is your playground and outages are boss fights this role is for you.

About Netsurit

Netsurit is a global MSP helping organizations grow scale and stay secure through modern IT. Our mission is to Support the dreams of the doers with a culture that genuinely supports personal and professional growth.

This is not a keep-the-lights-on role.

This is for senior engineers who thrive in MSP environments own complex infrastructure and lead when things get difficult.

The Role

As a Senior Microsoft Systems Engineer (L3) youll work across projects and advanced support acting as a technical leader for customers and internal teams.

You will:

• Design build migrate secure and optimize Microsoft environments
• Lead infrastructure DR security and modernization projects
• Handle advanced L2/L3 escalations
• Work directly with customers as a trusted technical advisor
• Act as Technical / Project Lead on MSP platform and standardization initiatives

Your Tech Stack

• Windows Server Microsoft 365 Exchange
• Azure & hybrid infrastructure
• Disaster Recovery & BDR: Datto Veeam SaaS backups
• Cybersecurity best practices across client environments
• Core MSP platforms and tooling (full ownership expected)

Infrastructure Cloud & Project Delivery

Youll plan implement and manage:

• Server deployments and migrations
• Microsoft 365 & Exchange migrations
• Azure and hybrid infrastructure
• DR & BDR solutions (Datto Veeam SaaS)
• Cybersecurity standards across all client environments

Support & Operations

Provide L2/L3 escalation support for:

• Servers Microsoft 365 networks endpoints and security platforms

Day-to-day includes:

• Troubleshooting via phone email and ticketing systems
• SLA and ITIL-aligned ticket management
• Proactive queue monitoring and escalation
• Maintaining accurate technical documentation
• Participation in a rotating after-hours support schedule

Networking & Systems Expertise

Troubleshoot and support:

• LAN/WAN connectivity switches routers firewalls
• Endpoints and peripherals
• DNS SPF DKIM DMARC
• Email systems and deliverability

Plan and implement:

• Patch management strategies
• Application deployments service packs and updates

What You Bring

Experience

• 3 years in progressive systems engineering / technical support (5 preferred)
• Recent (last 1224 months) hands-on experience with:
• Server & Microsoft 365 / Exchange migrations
• DR & backup solutions (Datto Veeam)
• Email security and spam filtering platforms
• Firewalls and security tools

Technical Skills

• Windows Server Microsoft 365 Azure
• PC/laptop deployment troubleshooting malware remediation
• Strong networking fundamentals: TCP/IP DNS routing switching

Ways of Working

• Proven infrastructure design and implementation experience (Visio a plus)
• Experience across regulated industries (finance medical legal non-profit real estate)
• Vendor management and negotiation experience
• Strong analytical troubleshooting and documentation skills
• Clear confident customer-facing communication
• Highly organized self-driven and comfortable in fast-paced MSP environments

Preferred / Bonus

• A Server Security Microsoft certifications (or equivalent)
• Cybersecurity certifications (highly advantageous)
• Associates or Bachelors degree in IT or related field
• Deep expertise in Microsoft Azure networking and security infrastructure

Ready to level up your L3 career
Apply now and help build IT that actually matters.