Top 1475 Systems Engineer 3 Jobs

Tier 3 Engineer
On Call Computer Solutions, LLC —Remote
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- Full-time
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Chemical Systems Engineer 3
Lam Research —Fremont, CA
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Aflac —Remote
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IronEdge Group, LTD —Remote
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Automotive Wire Harness Design Engineer (CATIA - 3 months)
Lumenance —Detroit, MI
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MidAmerican Energy Company —Des Moines, IA
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Level 3 IT System Engineer - WFH
Edit Technology Solutions INC —Remote
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8d
Retail Systems Engineer III
Merchants Distributors, LLC —Hickory, NC
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Systems Engineer 3
Tensley Consulting, Inc. —Annapolis Junction, MD
- $180,000 - $220,000 a year
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Application Engineer III
Applied Materials —Santa Clara, CA
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HPC Systems Engineer 3
T-Rex Solutions —Fort Meade, MD
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Electrical Engineer III
Holtec —Camden, NJ
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Reliability Systems Engineer - Level 3
Northrop Grumman —Redondo Beach, CA
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Design and Analysis Engineer 3 - Electronic Systems
The Structures Company, LLC —Everett, WA
- $75.50 an hour
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Modeling and Simulation Engineer - Level 2 or 3
Northrop Grumman —Huntsville, AL
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14d
Software Engineer III
General Dynamics Information Technology —Annapolis Junction, MD
- $214,776 - $290,580 a year
- Computer Science
- Software troubleshooting
- Research
- Paid holidays
- 401(k) matching

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Tier 3 Engineer

On Call Computer Solutions, LLC
Remote

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Job Details

Full-time
$150,000 - $200,000 a year

Qualifications

Technical documentation
Data recovery
Server backup and recovery
Operating system updates
Virtualization tools
Patch management
Remote access management
Computer management
Remote access software
Customer support ticket management
Server virtualization
Data backup
Technical writing experience
IP networking
Desktop administration
Active Directory management
Ticketing system technical support

Full Job Description

Are you an experienced fully Remote, US-Based Tier 3 Engineer who enjoys solving meaningful technical problems instead of living in reactive chaos?

Do you take pride in building stable, secure, well-documented environments that keep clients productive and protected?

On Call Computer Solutions is seeking a proactive, client-focused Tier 3 Engineer to support and improve the technology environments of our managed services clients. This role is ideal for someone who can think beyond break/fix work, prevent issues before they become outages, and own escalations through resolution.

The right candidate brings strong systems administration skills, solid communication, and the ability to balance daily support, proactive maintenance, documentation, and project work in a fast-paced MSP environment. You should be comfortable working across servers, Microsoft 365, identity, backups, virtualization, endpoint management, and core infrastructure while keeping security and client experience front and center.

Key Deliverables / KPIs

Proactively administer and maintain client environments, including Windows Server, Active Directory, Microsoft 365, Entra ID/Azure AD, virtualization platforms, backup systems, and core infrastructure; keep systems healthy, patched, monitored, and operating with minimal recurring issues and downtime.
Own escalated support tickets and infrastructure tasks from diagnosis through completion, including root-cause troubleshooting, permissions, onboarding/offboarding, server maintenance, line-of-business application support, and small-to-mid-sized technical projects; document work clearly and communicate effectively with clients and internal teams.
Improve client security and resilience by enforcing standards for patching, MFA, endpoint hygiene, backup verification, disaster recovery readiness, system documentation, and change control; identify risks early and recommend practical remediation steps that improve stability, security, and long-term service quality.
Other relevant duties as assigned.

Required Qualifications

3+ years of hands-on systems administration, infrastructure support, or MSP engineering experience
Strong experience with Windows Server, Active Directory, Microsoft 365, DNS, DHCP, virtualization, backup/recovery, and endpoint management
Working knowledge of networking fundamentals, including switching, routing, VPNs, firewalls, and remote access
Experience with ticket-driven service delivery, documentation, patch management, and proactive maintenance
Strong troubleshooting skills with the ability to communicate clearly to both technical and non-technical users

Preferred Qualifications

MSP experience supporting multiple client environments
Experience with Azure, Entra ID, Intune, and cloud migrations
Experience with Nutanix
Familiarity with business continuity and disaster recovery testing
Experience working in security-conscious or compliance-driven environments
Relevant Microsoft, CompTIA, or vendor certifications

On Call Computer Solutions, LLC is an Equal Opportunity Employer. Where permitted by applicable federal, state, and local law, employment with the Company is at will. Nothing in this job posting or the hiring process creates an express or implied contract of employment or guarantees employment for any specific duration.

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Refine Your Search

Systems Engineer 3 jobs

Tier 3 Engineer

L3 Systems Engineer (Microsoft, Azure, Active Directory

IT Systems Engineer III

Systems Engineer III

Chemical Systems Engineer 3

Platform Engineer III (Workday)

Systems Engineer III

Automotive Wire Harness Design Engineer (CATIA - 3 months)

Embedded Systems Engineer 3

Network Engineer 3

Level 3 IT System Engineer - WFH

Retail Systems Engineer III

Systems Engineer 3

Application Engineer III

HPC Systems Engineer 3

Electrical Engineer III

Reliability Systems Engineer - Level 3

Design and Analysis Engineer 3 - Electronic Systems

Modeling and Simulation Engineer - Level 2 or 3

Software Engineer III

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