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Osman A.

Osman A.

Senior Network Security Engineer | IT Infrastructure

Network Engineer with experience in Windows Administration, Cisco Networking | Meraki | DNA Center Installation, Troubleshooting and AWS | Azure Cloud - Networking. Provisioning LLD & HLD Network Design, configuration and implementation using best practice. If you looking for a Network/AWS Cloud/Windows Server Administrator to build, troubleshoot or maintain infrastructure, you can count on me. Highly experienced backend developer with 5+ years of expertise in Node.js, TypeScript, and related technologies. Proven track record of delivering scalable, efficient, and reliable server-side applications. Skilled in cloud platforms, database management, and agile development. Strong focus on code quality, performance, and maintainability. Key Skills: - Node.js - TypeScript - Express, Koa, NestJS - MongoDB, PostgreSQL, MySQL - AWS, Azure, Google Cloud - Git Highlights include: *Network Engineering, Administration, Management and Troubleshooting. - Configuration of routing protocols and technologies like BGP, OSPF, IP SLA, PBR, MPLS, IPSEC, Prefix-list, Route-Maps, Redistribution, ACLs. - QoS/IP_SLA: Traffic policing and shaping, traffic prioritization. - Configuration and management of Layer 2 & 3 networking devices. *AWS Cloud Networking and Security: - VPC, EC2, IAM, SES, DKIM, SMTP, Route 53, IAM, ELB, ASG, Cloudfront, WAF, VPN, IPsec. - AWS Client VPN and AWS Site-to-Site VPN - AWS Workspaces - AWS Application Migration Service (Next generation of CloudEndure Migration) *Windows Server Administration and Hyper-V Manager (Virtualization) Windows Server 2016/2019/2022 - Remote Desktop Services (RDS) - Virtual Desktop Infrastructure (VDI) Personal or Pooled - RD Broker, Web Access and RD Gateway. *Expert knowledge of network analysis fundamentals and robust troubleshooting skills; specifically, network performance analysis. - DNS, DHCP, TCP, HTTP, SSL/TLS - Tcpdump, windump, PRTG, netstat, Nslookup, Dig *Network and Infrastructure Automation - Network and IP Operations. - Python Automation - YAML, JSON. *System Administration and Networking

🇳🇬Ikeja, Nigeria$15/hr100% JSS4.93 (8)Since Sep 2020

Earnings and projects

MRR (estimate)
≈$0

An estimate from an earlier read

World#364,693 / 412k
🇳🇬Country#11,272 / 13.8k
Revenue, last 30 days
$0
Total earnings
$1.4k

Billed in all: $1.4k

World#364,693 / 412k
🇳🇬Country#11,272 / 13.8k
Per project
$88
Projects, last 6 months
0
World#209,850 / 412k
🇳🇬Country#8,972 / 13.8k
Projects in all
16

Across 17 contracts

76% fixed24% hourly
World#155,087 / 412k
🇳🇬Country#5,115 / 13.8k

Earnings, last 30 days

$1.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,380$1,400$1,420$1,440Oct 9Oct 24Nov 8

No data since Nov 5, 2026.

Skills