Senior IT Engineer
A2e Technologies
San Diego, CA
Senior IT Engineer to play a key role on our IT Team in the design, deployment, maintenance, and security of our infrastructure.
This position requires a hands-on technical expertise with deep experience across Azure AD, Intune, Active Directory, Exchange, virtualization platforms such as Proxmox, and enterprise networking.
The ideal candidate is a problem-solver who can operate independently, mentor junior staff, and help modernize and secure IT systems while supporting business operations.
Requirements
Minimum Requirements but not limited to:
- This position requires US Citizenship
- 8+ years hands-on experience across:
- Azure AD,
- Intune,
- Active Directory,
- Exchange,
- virtualization platforms such as Proxmox, and
- enterprise networking. .
- Excellent Problem solving abilities
- Can operate independently,
- Mentor junior staff, and
- help modernize and
- secure IT systems while supporting business operations.
Key Responsibilities but not limited to::
Systems & Identity Management
- Administer and maintain Azure Active Directory (Entra ID), including user lifecycle management, Conditional Access, MFA, and role-based access control (RBAC).
- Manage on-prem Active Directory, including Group Policy, DNS, DHCP, and hybrid AD configurations.
- Administer Microsoft Intune for device management (Windows, macOS, mobile), including compliance policies, configuration profiles, and application deployment.
- Manage Exchange Online / Exchange hybrid environments, including mail flow, security, retention, and troubleshooting.
- Infrastructure & Virtualization
- Design, deploy, and maintain virtualization environments, including Proxmox VE (VMs, LXC containers, backups, clustering, storage).
- Manage storage solutions (local, SAN/NAS, ZFS, backups, snapshots, replication).
- Monitor system performance, capacity, and availability; proactively resolve issues.
Networking
- Configure and support enterprise networking environments, including:
- Switching and routing (VLANs, trunking, STP)
- Firewalls and VPNs (site-to-site and remote access)
- Network security best practices
- Troubleshoot complex network connectivity and performance issues.
Security & Compliance
- Implement and maintain security best practices across endpoints, servers, and identity platforms.
- Support compliance initiatives (e.g., CMMC, SOC 2, ISO 27001, or similar).
- Manage patching, vulnerability remediation, endpoint protection, and logging.
- Participate in incident response and root cause analysis.
End-User & Operational Support
- Serve as an escalation point for complex technical issues.
- Maintain the ticketing system and work issues as they arrive within SLA.
- Create and maintain documentation for systems, procedures, and configurations.
- Assist with training and support for end users.
· Work closely with vendors and security consultants as needed.
Required Qualifications
- 8+ years of hands-on experience in a senior IT or systems engineering role.
- Strong experience with:
- Azure AD / Entra ID
- Microsoft Intune
- Active Directory (on-prem and hybrid)
- Exchange / Exchange Online
- Experience with virtualization platforms (Proxmox strongly preferred; VMware/Hyper-V acceptable).
- Solid understanding of TCP/IP networking, firewalls, VPNs, and DNS.
- Strong troubleshooting skills across systems, networking, and identity.
- Ability to work independently and manage multiple priorities.
Preferred Qualifications
- Experience with:
- Proxmox clustering, ZFS, and backup strategies
- Linux server administration (Debian/Ubuntu preferred)
- Scripting and automation (PowerShell, Bash, Python)
- Endpoint security and MDM hardening
- Familiarity with compliance frameworks (CMMC, NIST, SOC 2, ISO).
- Microsoft certifications (Azure, M365, Security) or equivalent experience.
- Experience modernizing legacy environments or migrating to cloud services.
Soft Skills & Attributes
- Strong communication skills with both technical and non-technical stakeholders.
- Detail-oriented with a strong documentation mindset.
- Security-first mentality.
- Calm and effective under pressure.
- Desire to continuously learn and improve systems.
Benefits
- Medical
- Dental/
- Vision
- 401K
A2e Does NOT Accept Unsolicited Resumes or Referrals from any source other than the candidate, and, as a result, we will not be considering any unsolicited referrals or resumes sent to us as a fee -based candidate submittal.
Any unsolicited resumes sent to A2e, including unsolicited resumes sent to a A2e mailing address, fax machine or email address, directly to A2e employees, or to A2e’s resume database will be considered A2e property.
A2e will NOT pay a fee for any placement resulting from the receipt of an unsolicited resume.