Systems Administration & Network Engineering

Managed IT Infrastructure for Serious Business Systems

Servers, endpoints, firewalls, VPNs, Microsoft 365, cloud backups, and security controls for organizations that need dependable technology operations.

Servers & VMs Microsoft 365 Network Topology Cybersecurity Cloud & Backup Healthcare Integration
Servers
Network
Endpoints
Cloud
Operations Layer Monitor / Secure
VPN M365 Backup EDR
24/7
Monitoring readiness
VPN
Secure remote access
DR
Backup and recovery

Built around infrastructure reliability, security controls, and documented systems.

Systems AdminServer, VM, identity, permissions, and application support
Network SecurityFirewall rules, VPN routing, wireless, VLANs, and remote access
Microsoft 365Tenant management, migrations, accounts, groups, and policies
Backup / DROffsite backup visibility, restore testing, and recovery planning
Cloud / VPNAWS, Azure, site-to-site connectivity, and secure access paths
Healthcare ITEHR connectivity, HL7/FHIR workflows, and HIPAA security controls

Technical Capabilities & Services

Objective service areas for organizations that need documented systems, controlled access, monitored infrastructure, dependable networks, and healthcare data exchange when clinical workflows are in scope.

Managed Infrastructure

Administration and oversight for servers, virtual machines, user access, monitoring, and network documentation.

  • Server & VM Administration

    Operating system maintenance, resource monitoring, patch review, and virtualization support.

  • User Provisioning

    Account creation, permission assignment, access removal, and group policy alignment.

  • Active Monitoring

    Availability checks, alert review, performance tracking, and incident triage.

  • Network Topology

    Documentation of routers, switches, wireless access points, VLANs, and critical dependencies.

Systems: Windows Server, VMware, Hyper-V, Microsoft 365, Azure

Healthcare Systems

Technical support for healthcare workflows that depend on accurate data exchange, secure connectivity, and compliant infrastructure controls.

  • HL7/FHIR Interface Pipelines

    Interface coordination, message routing review, endpoint validation, and data-flow documentation.

  • EHR Connectivity

    Clinical application access, authentication paths, vendor coordination, and network reachability.

  • HIPAA Security Controls

    Access review, audit readiness, backup visibility, endpoint protection, and PHI risk reduction.

  • LIS & Lab Integration

    Order/result interfaces, analyzer dependencies, lab data routing, and reference lab connectivity.

Systems: Epic, Cerner, MEDITECH, LIS, PACS, DICOM, HL7 v2, FHIR R4

Network & Security

Configuration and lifecycle management for perimeter controls, remote connectivity, endpoint segmentation, and hardware assets.

  • Firewall Rules

    Rule review, port exposure reduction, NAT policy documentation, and vendor access control.

  • VPN Routing

    Remote access configuration, site-to-site routing, authentication review, and connectivity troubleshooting.

  • Endpoint Isolation

    Segmentation planning, compromised-device containment, and access restriction.

  • Hardware Asset Lifecycles

    Inventory review, warranty tracking, replacement planning, and refresh coordination.

Systems: AWS Site-to-Site VPN, UniFi, Cisco, Meraki, EDR, encrypted backup

Business outcomes first. Technology underneath.

Your office stays online, your data stays protected, and critical systems stay monitored. The services below are how we make that happen.

๐Ÿ–ฅ๏ธ

Servers & Virtualization

Server administration, VM management, OS patching, user accounts, and performance monitoring.
  • Server & VM administration
  • User accounts & permissions
  • Shared folder management
  • Business application support
Windows ServerVMwareHyper-V
๐ŸŒ

Network, WiFi & VPN

Full management of wired and wireless infrastructure including firewalls, switches, and remote access.
  • Firewall & router support
  • WiFi optimization
  • VPN setup & security review
  • Remote user connectivity
CiscoUbiquitiMeraki
๐Ÿ’พ

Backup & Disaster Recovery

Monitor, verify, and test backups so recovery is fast and reliable when the unexpected happens.
  • Offsite backup monitoring
  • Restore testing
  • DR planning assistance
  • Redundancy recommendations
OffsiteRansomware Protection
๐Ÿ–จ๏ธ

Onsite & Remote Support

Day-to-day helpdesk, printer troubleshooting, hardware coordination, and emergency response.
  • End-user helpdesk
  • Printer & peripheral support
  • Hardware replacement
  • Emergency outage response
RemoteOnsite
๐Ÿ“ท

Security Cameras & Physical Security

DVR/NVR support, camera configuration, storage review, and coordination with vendors.
  • DVR/NVR maintenance
  • Camera access configuration
  • Retention review
  • Upgrade recommendations
DVRNVRIP Cameras
โ˜๏ธ

Microsoft 365 & Cloud

M365 administration, cloud migration planning, and ongoing cloud environment management.
  • M365 setup & admin
  • Exchange & Teams support
  • Cloud migration planning
  • Azure & cloud infrastructure
Microsoft 365Azure
โšก

HL7 & FHIR Integration

ADT, ORM, ORU, MDM message development with complete interface mapping, validation, and FHIR API design.
  • HL7 v2 interface development
  • FHIR R4 API design & deployment
  • SMART on FHIR applications
  • Message routing & transformation
HL7 v2FHIR R4MLLP
๐Ÿ”ฌ

Medical Device IT

Biomedical device network connectivity, real-time vitals streaming, and integration with clinical systems.
  • Device network configuration
  • Vitals & alarm system integration
  • DICOM connectivity support
  • Device security hardening
DICOMBiomedical
๐Ÿ–ผ๏ธ

Medical Imaging & DICOM

PACS integration, DICOM routing, imaging workflow support, and connectivity between imaging and EHR systems.
  • PACS network & storage support
  • DICOM routing & configuration
  • Imaging workflow optimization
  • Vendor coordination
PACSDICOMRIS
๐Ÿ”—

Healthcare Interoperability

End-to-end interoperability strategy, HIE connectivity, TEFCA alignment, and cross-platform data exchange consulting.
  • HIE integration & connectivity
  • TEFCA & national network onboarding
  • CMS interoperability compliance
  • Patient access APIs
HIETEFCACMS
๐Ÿงช

LIS / Lab Integration

Laboratory information system connectivity โ€” HL7 order/result interfaces, lab data routing, and cloud integration.
  • HL7 order & result interfaces
  • FHIR lab APIs
  • Lab-to-EHR data routing
  • Reference lab connectivity
LISLIMSHL7 ORU
๐Ÿ”

Cybersecurity Services

Layered endpoint protection, patch management, access controls, and security best-practice implementation.
  • Endpoint protection oversight
  • Firewall & access policy review
  • Ransomware protection
  • Security hardening
EDRFirewallZero Trust
๐Ÿ“‹

HIPAA Compliance

HIPAA risk assessments, gap analysis, remediation planning, and ongoing compliance program management for healthcare organizations.
  • Risk analysis & assessment
  • Gap analysis & remediation
  • Policy & procedure review
  • Ongoing compliance monitoring
HIPAAPHI Protection
โ˜๏ธ

Healthcare Cloud Security

HIPAA-eligible cloud architecture, security controls, and managed security for healthcare workloads on AWS and Azure.
  • HIPAA-compliant cloud design
  • Cloud security architecture
  • Compliance controls
  • Managed cloud security
AWSAzureHIPAA
๐Ÿ›ก๏ธ

Security Assessment

Comprehensive security reviews of your network, endpoints, and healthcare systems to identify and close vulnerabilities.
  • Network security review
  • Vulnerability assessment
  • User access audit
  • Remediation roadmap
AssessmentAudit
๐Ÿ“Š

Compliance Consulting

Regulatory compliance support for healthcare organizations โ€” HIPAA, HITECH, and security framework alignment.
  • HIPAA / HITECH compliance
  • Security framework guidance
  • Staff awareness training
  • Incident response planning
HIPAAHITECH
๐Ÿ”‘

Access Control & Physical Security

Secure door access systems, badge readers, and integration of physical security with your IT infrastructure.
  • Door access control systems
  • Badge & keycard setup
  • Physical-IT integration
  • Audit trail & logging
Access ControlPhysical Security
๐Ÿข

Office Setup & Relocations

New office technology deployment, structured cabling (Cat5e/Cat6), and complete relocation support.
Cat6Structured Cabling
๐Ÿ”„

Hardware Refresh Planning

Lifecycle management, server and workstation replacement planning, and vendor coordination.
LifecycleVendor Mgmt
๐Ÿ“ก

Network Expansion & WiFi

WiFi coverage improvements, network expansion across locations, and performance optimization.
WiFi 6Multi-Site
๐Ÿค

Vendor Coordination

We act as your technical representative with ISPs, software vendors, hardware suppliers, and cloud providers.
ISPHardwareSoftware
๐Ÿ“Š

Monitoring & Reporting

Proactive monitoring tools, performance dashboards, and regular reporting to keep you informed.
RMMReporting
๐Ÿฅ

Medical Office IT

Specialized IT support for medical offices โ€” practice management systems, clinical workstations, and HIPAA-aware infrastructure.
Medical OfficeHIPAA

Integration work described by challenge, architecture, and measurable outcome.

Representative technical scenarios. Client names are generalized unless a public reference is approved.

Medical Laboratory

EHR-to-lab workflow stabilization.

Challenge: Manual order handling created duplicate entry risk and inconsistent result visibility.

  • Architecture: HL7 ORM/ORU routing with validation points and vendor responsibility mapping
  • Outcome: Fewer workflow interruptions and clearer order/result accountability
  • Systems: EHR โ†’ interface layer โ†’ LIS โ†’ analyzer network
Medical Office

Clinical workstation and EHR access hardening.

Challenge: Unreliable access paths affected exam-room workflows, scanning, printing, and remote users.

  • Architecture: Firewall review, VLAN cleanup, endpoint baseline, VPN routing validation
  • Outcome: Standardized access controls and reduced escalation ambiguity
  • Systems: EHR, Microsoft 365, firewall, VPN, clinical workstations
Healthcare Infrastructure

HIPAA-aware backup and recovery model.

Challenge: Backup jobs existed, but restore paths, retention, and ownership were not documented.

  • Architecture: Encrypted backup review, restore testing, alert routing, and DR runbook creation
  • Outcome: Recoverability became testable instead of assumed
  • Systems: Server workloads, cloud backup, Microsoft 365, endpoint storage

Technical Depth. Real Accountability.

We combine hands-on infrastructure experience with genuine healthcare IT knowledge โ€” under one roof, with direct accountability.

01
Proactive, Not Reactive
We prevent issues before they impact operations through continuous monitoring, scheduled maintenance, and early intervention.
02
Healthcare & Multi-Site Experience
Deep experience with uptime-critical environments including medical offices, hospitals, and multi-location organizations.
03
Smooth Provider Transitions
Our structured transition plan ensures continuity, full documentation, and zero operational disruption when switching providers.
04
Direct, Named Accountability
You know who is responsible. Personalized service with clear ownership โ€” no ticket black holes, no runaround.
Engagement Options
Hybrid Plan
Monthly base fee + hourly for onsite & projects
Flexible
Time & Materials
Pay-as-you-go hourly or per-project support
As Needed
Free Environment Assessment
We review your current setup and identify security gaps, backup risks, and quick wins โ€” at no cost.
Schedule Assessment

A Smooth Transition to Better IT

Whether switching providers or starting fresh, our onboarding is structured and low-risk.

1
Discovery Meeting
We review your environment, pain points, and expectations in a no-pressure initial consultation.
2
Site & Systems Assessment
Hands-on review of servers, network, backups, security, and cameras to identify gaps and risks.
3
Transition & Documentation
We consolidate credentials, document every system, and coordinate with your prior vendor professionally.
4
Ongoing Support Begins
Full managed support launches with monitoring, maintenance, and a clear improvement roadmap.

Questions clients ask before switching IT support.

Do you support healthcare and non-healthcare businesses?

Yes. Healthcare IT is a major focus, but AJSJ Technology also supports professional offices, financial firms, and growing small businesses.

Can you work with our existing vendors?

Yes. We can coordinate with EHR vendors, ISPs, firewall vendors, cloud providers, camera vendors, and software support teams.

Can you help if we are switching providers?

Yes. We document the environment, organize access, identify risks, and plan the transition to reduce disruption.

Do you offer emergency support?

Yes. For urgent issues, call (646) 847-2475 so the problem can be triaged quickly.

Schedule Your Complimentary Architecture Review

45-minute assessment. No sales pitch. Just honest diagnostics on your systems, interfaces, and risk points.

Request Review (646) 847-2475