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# Senior Systems Engineer

- **Company:** E.C.I., Inc.
- **Location:** Stamford, CT, United States
- **Experience:** Expert
- **Salary:** $130,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Domain Controllers, Amazon Web Services, Antivirus Softwares, Systems Engineering, Microsoft Azure, Microsoft Online Services, Cloud Computing, Cyber Security, Computer Networks, Disaster Recovery, Multi-Factor Authentication, Microsoft Exchange Server, Hyper-V, Mobile Application Software, Microsoft Operating Systems, Windows Servers, Routing, Network Administration, Azure Active Directory, Zero Trust Network Access, Runbook, Microsoft SharePoint, Security Information and Event Management, Software Deployment, Systems Integration, Virtual Local Area Networks, VMware VSphere, Software Vulnerability Management, SSL Certificate Management, Google Cloud, Cloud Platform System, Microsoft InTune, Microsoft Onedrive, Information Technology, Palo Alto Networks, Cloudflare, Wireless Technologies, Malware Detection, Gsuite, 3-tier Architectures, Cisco
- **Published:** July 23, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=e27647356269e082

## About the Role

As a Senior Systems Engineer, you will play a key role in our technical delivery team to drive the technology programs, including Cloud implementation and support, desktop engineering escalation and networking for a defined portfolio of clients. Using latest and greatest technologies and solutions, you will support our client's innovation by following a set of standards and best practices in a rapidly evolving technology landscape., * Bachelor's degree in an Information Technology related field, or a minimum of 6+ years comparable experience in a technology administration role

 * Advanced knowledge of Microsoft Operating Systems such as Windows Server and Windows 11
 * Advanced administration experience with Public Cloud platforms with focus in Microsoft 365 and Azure (Azure AD, Exchange Online, SharePoint Online, OneDrive for Business, Teams, Intune)
 * Experience in administration of e-mail platforms and security integrations such as Exchange Online
 * Experience in virtualization administration on platforms such as VMware vSphere and Hyper-V
 * Hands on experience in deployment and management of routing, switching, wireless, and security appliance technologies using vendors such as Cisco, Palo Alto Networks, and Meraki
 * Proficient in incident response management during security events and high-priority escalations, as well as disaster recovery and business continuity activations

Bonus points if you have:

 * Managed Service Provider (MSP) experience
 * Certifications in cloud services, network management or cyber-security, such as CCNA, CISSP, Azure Fundamentals and VCP a plus

## Description

As a Senior Systems Engineer, you will play a key role in our technical delivery team by working with a Client Technology Manager (CTM) to drive the technology programs, including Cloud implementation and support, desktop engineering escalation and networking for a defined portfolio of clients. Using the latest and greatest technologies and solutions, you will support the client's innovation by following a set of standards and best practices in a rapidly evolving technology landscape.

What you will do:

 * Collaborate with, and act as a tier 3 escalation point for Client Technology Management, Service Desk, Engineering and other client support teams
 * Provide advanced support of cloud infrastructures such as Microsoft 365/Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), and ECI's proprietary technology
 * Implement and manage enterprise mail platform and security systems such as Microsoft Exchange, Google Workspace, Proofpoint Essentials and Mimecast
 * Execute basic tasks on enterprise switching, routing, security and wireless systems like VLAN changes, ACL updates, key rotations, and port reconfigurations
 * Take ownership of complex technical challenges and provide long term fixes based on root cause analysis
 * Document processes and procedures which explain system functionality or regular tasks to contribute to our internal knowledge base including architecture diagrams, runbooks, and standard operating procedures (SOP)
 * Audit undocumented client environments and provide technical recommendations based on findings
 * Apply best-practice configurations to client security platforms such as Azure Active Directory Conditional Access, DUO Multifactor Authentication (MFA) services, and zero-trust services such as Cloudflare and iBoss.
 * Provide high-level consultation on information security fundamentals such as good password hygiene practices, multi-factor authentication recommendations and social-engineering defense
 * Perform system maintenance tasks including software and operating system patching, software version upgrades, critical patch applications, and vulnerability remediation
 * Provide advanced support of Active Directory such as Domain Controller upgrades, Group Policy creation, scheduled software deployments, network policy maintenance, and certificate management
 * Interface with common technology support tools such as Remote Monitoring and Management (RMM), Mobile Device/Mobile Application Management, Anti-Virus/Anti-Malware
 * Collaborate cross-functionally to ensure successful delivery of project implementations, migrations, and upgrades
 * Acting as a technical lead for small projects and maintain accountability to delivery of scope


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