Senior Systems Engineer Cloud, Security & Networking

Openkrill; United States; Hybrid; USD 100,000 - 160,000; Full time

Benefits offered by this job

Medical insurance

Home office setup allowance

Internet allowance

Gym & wellness allowance

Flexible work

Team events

Certifications reimbursement

Job summary

Openkrill is seeking a Level 3 Systems Engineer to act as a senior escalation point and lead complex incidents across Microsoft 365, security, identity, endpoints, cloud and on‑premises infrastructure. You will design, build and deploy infrastructure and security solutions for technology projects, while supporting remote-site initiatives.

You will collaborate with senior engineers and project managers, guiding Level 1/2 staff and ensuring security, risk and compliance considerations are embedded

Qualifications

• Demonstrated Level 3 or senior systems engineering experience within an MSP or complex, multi-site IT environment.
• Advanced troubleshooting expertise across Microsoft 365, Windows, cloud and on-premises infrastructure.
• Strong knowledge of Microsoft cloud technologies, security, identity, endpoint and access management.
• Solid experience with servers, virtualisation, networking, firewalls and infrastructure deployments.
• Proven ability to own complex incidents, identify root causes and determine effective resolutions or escalation paths.
• Experience contributing to or delivering infrastructure and technology projects from configuration through deployment.
• Strong understanding of cybersecurity and compliance-focused environments.
• Familiarity with the Australian Essential Eight is strongly preferred; exposure to ISO-aligned, DISP, SOCI or comparable environments is highly regarded.
• MSP experience is preferred, although candidates from sophisticated internal IT environments may also be considered.
• Exposure to VMware, SD-WAN, Starlink, remote-community networks, IoT, cameras, alarms or building systems is advantageous.
• Experience with PSA, RMM and knowledge-management platforms is desirable.
• Strong technical fundamentals with the ability to quickly learn new technologies and vendor platforms.

Responsibilities

• Act as a senior escalation point for complex, high-impact and persistent technical incidents.
• Lead advanced troubleshooting and root-cause analysis across Microsoft 365, Microsoft security, identity, endpoints, cloud and on-premises infrastructure.
• Design, build, configure and deploy infrastructure and security solutions for technology projects.
• Support server, virtualisation, networking, firewall, SD-WAN, remote-site and security uplift initiatives.
• Collaborate with senior engineers, project managers and technical leadership throughout project deployments.
• Provide technical guidance to Level 1 and Level 2 engineers and assist with complex escalations.
• Review technical changes with consideration for security, operational risk and compliance requirements.
• Apply cybersecurity frameworks such as the Australian Essential Eight to practical configurations, controls and remediation activities.
• Create and maintain solution designs, configurations, handover materials and technical documentation.
• Maintain accurate ticket, project and service records across PSA and RMM platforms.

Skills

Senior systems engineering

Advanced troubleshooting

Microsoft cloud technologies

Security & compliance

Infrastructure design

Incident ownership

Project delivery

Documentation

Tools

Microsoft 365 (Intune, Defender)

Azure / Entra ID

SharePoint & Teams

Google Workspace

Datto PSA & RMM

Datto SaaS Protection

Hyper-V / VMware

Fortinet / Firewalls

3CX / Adobe products

Job description

Openkrill is seeking a Level 3 Systems Engineer to act as a senior escalation point and lead complex incidents across Microsoft 365, security, identity, endpoints, cloud and on‑premises infrastructure. You will design, build and deploy infrastructure and security solutions for technology projects, while supporting remote-site initiatives.

You will collaborate with senior engineers and project managers, guiding Level 1/2 staff and ensuring security, risk and compliance considerations are embedded