Mohamed M

Network security Engineer

Movate • Período integral

Jun 2023 - Present • 3 yrs 3 mos

Network Engineer | IT Support | Network Security Network Engineer with experience in network troubleshooting, IT support, network security, and enterprise access control, with hands-on exposure to Cisco networking and Aruba ClearPass environments. I provide technical support for network connectivity, authentication, access control, troubleshooting, and customer-facing technical issues. Key Areas of Experience Network Troubleshooting – Troubleshoot connectivity, authentication, network access, and communication-related issues. Switching & Routing – Working knowledge of Cisco switching and routing concepts, VLANs, trunking, access ports, and basic routing. TCP/IP & OSI Model – Analyze network communication issues using TCP/IP and OSI-layer troubleshooting methodologies. DHCP & DNS – Troubleshoot IP address allocation, DNS resolution, and related connectivity issues. Network Security – Support network access control and authentication-related security requirements. Aruba ClearPass – Hands-on experience supporting ClearPass Policy Manager and troubleshooting network access and authentication issues. AAA & Authentication – Experience with Authentication, Authorization, and Accounting (AAA). RADIUS & TACACS+ – Troubleshooting authentication and authorization using RADIUS and TACACS+. 802.1X Authentication – Troubleshoot enterprise network authentication and endpoint access issues. EAP Authentication – Experience with EAP-TLS and EAP-PEAP authentication scenarios. Active Directory & LDAP – Work with authentication integrations involving AD and LDAP. ClearPass Guest – Support guest access, guest authentication, and related configuration/troubleshooting. Network Packet Analysis – Use Wireshark to analyze packets and troubleshoot network communication problems. Access Tracker Analysis – Analyze authentication requests, failures, enforcement profiles, and network access events. Endpoint & Device Troubleshooting – Investigate issues related to endpoints, network adapters, au

Account Receivable

Access Healthcare Services • Período integral

Dec 2021 - Jun 2023 • 1 yr 6 mos

Medical Billing & Revenue Cycle Management (RCM) Experience Experienced in US Healthcare Medical Billing and Revenue Cycle Management (RCM), supporting the complete billing process from patient and insurance information review through claims follow-up and payment/denial resolution. Key Areas of Experience: Patient Demographics & Insurance Verification – Review patient information, insurance details, eligibility, and coverage. Medical Claims Processing – Prepare, review, and process healthcare claims with attention to accuracy and billing requirements. Charge Entry – Enter and validate patient charges, procedures, services, and related billing information. Medical Coding Support – Work with diagnosis and procedure-related information and identify potential billing/coding discrepancies. Claim Submission – Review claims for completeness and accuracy before submission to insurance payers. Accounts Receivable (AR) – Monitor outstanding insurance and patient balances and work on aging accounts. Denial Management – Analyze claim denials, identify denial reasons, take appropriate corrective action, and follow up for resolution. Insurance Follow-up – Contact/follow up on unpaid, underpaid, rejected, and pending claims. Payment Posting – Review and post insurance and patient payments accurately against outstanding accounts. EOB/ERA Analysis – Review Explanation of Benefits (EOB) and Electronic Remittance Advice (ERA) to understand payments, adjustments, and denials. AR Aging Analysis – Work on aging reports and prioritize accounts based on outstanding balances and claim status. Underpayment & Reimbursement Review – Identify payment discrepancies and investigate reimbursement issues. Claim Rejections – Review rejected claims, identify errors, make necessary corrections, and resubmit. Documentation & Reporting – Maintain accurate account notes, follow-up records, claim status updates, and productivity reports. Payer Communication – Handle insurance-related queries and follow