Senior System Administrator responsible for managing and maintaining enterprise IT infrastructure, Microsoft 365 environments, endpoint security, cloud platforms, networking, storage, backup, and disaster recovery operations.
Responsibilities
Manage enterprise IT infrastructure, including Windows Server 2012-2022 environments
Administer Active Directory, Forest and Domain Management, DNS, DHCP, DFS, Group Policy, WSUS, PKI, IAS/NPS, and File and Print Services
Perform server administration, operating system management, patching, migrations, cloning, capacity planning, health checks, and lifecycle management
Manage VMware vSphere and Microsoft Hyper‑V environments, including VM provisioning, migration, cloning, snapshots, HA clusters, and resource optimisation
Administer Microsoft 365 services, including Exchange Online, Intune, Entra ID, Defender, Purview, Teams, SharePoint Online, OneDrive, and Windows Autopilot
L3+ NOC Engineer overseeing mission‑critical server, cloud, and network environments, performing real‑time alert triage, incident logging, and escalation to maintain system reliability and SLA commitments.
Responsibilities
Supervise enterprise network infrastructure, servers, applications, and links via monitoring tools
Acknowledge alerts, perform initial analysis, create incident tickets in ServiceNow or Jira
Apply operational procedures to remediate complex L2/L3 infrastructure incidents
Route complex issues to subject matter experts and third‑party providers
Design, implement, and optimize HealthEdge’s enterprise network infrastructure across on-premises data centers, cloud environments, and remote access platforms.
Compensation
The annual US base salary range for this position is $84,000 to $89,000.
Responsibilities
Design, configure, and maintain LAN/WAN, SD-WAN, VPN, firewall, and load-balancing infrastructure across multi-site and multi-cloud environments
Monitor network performance and proactively resolve issues before they impact service delivery and SLA targets
Implement network security controls including firewall rule sets, IDS/IPS, segmentation, NAC, and zero-trust architecture principles
Design and manage AWS network infrastructure for scalable, highly available architectures
Configure AWS Transit Gateway and VPC peering for secure, low-latency connectivity across accounts, regions, and on-premises environments
Requirements
Bachelor’s degree in Computer Science, IT, Network Engineering, or equivalent professional experience
Nice to have: CCNP, CCIE, PCNSE, NSE, or AWS Advanced Networking Specialty certifications
Nice to have: Experience in healthcare SaaS or regulated environments (HIPAA, HITRUST, SOC 2)
Nice to have: Experience with large-scale infrastructure integrations or M&A network consolidation
Nice to have: Familiarity with HealthEdge products (HealthRules® Payer, HealthEdge Source™, GuidingCare®, Wellframe™)
In accordance with the Pay Transparency requirements, the following represents a good faith estimate of the compensation range for this position. At BJ’s Wholesale Club, we carefully consider a wide range of non-discriminatory factors when determining salary. Actual salaries will vary depending on factors including but not limited to location, education, experience, and qualifications. The pay range for this position is $128,500.00 - $164,000.00
Responsibilities
Lead end-to-end Aruba WiFi deployments for new and existing retail stores and distribution centers, from design through post-deployment validation.
Conduct professional RF site surveys using Ekahau Pro and similar predictive/post-installation tools; produce detailed heat maps, coverage reports, and capacity recommendations.
Design and maintain Aruba wireless infrastructure including APs (indoor/outdoor), Mobility Conductors/Gateways, and AOS-8/AOS-10 architecture.
Optimize RF environments for high-density retail and warehouse settings, including 2.4GHz/5GHz/6GHz band management, channel planning, and interference mitigation.
Develop and enforce wireless security standards (WPA3-Enterprise, 802.1X, PPSK) aligned with PCI-DSS requirements for retail payment environments.
Requirements
Bachelor's degree in Computer Science, Information Technology, Network Engineering, or equivalent
Nice to have: Aruba Certified Mobility Professional (ACMP)
Nice to have: Aruba Certified ClearPass Associate/Professional (ACCA/ACCP)
The Senior NOC Engineer protects production service availability by monitoring alerts, diagnosing issues across domains, executing recovery actions, and escalating incidents.
Responsibilities
Monitor alerts, dashboards and supplier notifications across networks, mobile connectivity platforms, infrastructure and applications
Validate alerts, assess impact and priority, and raise incident records
Diagnose issues using logs, traces, monitoring data and approved tools
Run approved recovery runbooks within agreed limits
Escalate to resolver teams, MNOs, carriers and suppliers with clear evidence
NETWORK ANALYST IIJEM Systems · São Paulo, Brazil
Senior NOC EngineerWireless Logic · Bucharest, Romania