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Hire the best Cisco ASA Specialists in the United States

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  • $98 hourly
    • 4.7/5
    • (85 jobs)
    Current Certifications: * CCENT ( Cisco Certified Network Technician ) * CCNA (Cisco Certified Network Admin (Routing & Switching)) * CCNP (Cisco Certified Network Professional (Routing & Switching)) * CCNA-SECURITY (Cisco Certified Network Security Admin) * SECURITY+ CE (CompTIA Certified SECURITY) * CEH (Certified Ethical Hacker) I am a Sr. Network and Security Engineer (SME) with expertise in Cisco Network Engineering and Cyber Security Engineering with year of I.T. experience managing private and government enterprise networks and Cyber security Network environments for large and small businesses . I have over 18+ years total experience as a lead Sr. network engineering SME as my foundation , and 9 yrs experience in Cyber Network Security infrastructure , design, configurations, troubleshooting, Cyber threat hunting. Also upgrading enterprise networks and security infrastructures for private companies , government organizations , including large and small business Networks and information systems. These skills include SME experience in Cisco Routing and Switching, ASA Firewalls, Palo Alto, Pfsense , VPNs, F5 Load balancer, WLAN, VoIP, and Cyber Security tools and SIEMS and Network Scanning, Windows Server, and WiFi networks.
    Featured Skill Cisco ASA
    VMWare
    Cisco CallManager
    System Configuration
    VoIP
    Ethical Hacking
    Cisco Certified Network Professional
    Cisco Certified Network Associate
    Cisco Router
    VPN
    Firewall
  • $130 hourly
    • 5.0/5
    • (59 jobs)
    👑 Expert Vetted - Top 1% of talent on Upwork ⭐️ Top Rated - Highly rated for the work provided 🎯 100% Job Success Score 🕒 600+ hours on Upwork ✅ 30+ years of experience ✅ 50+ projects delivered here on Upwork With over three decades of experience under my belt as a network and security engineer, I've traversed the ever-evolving landscape of LAN/WAN network design, network security, firewalls, implementation, and maintenance. My expertise is not merely a testament to time, but also backed by credentials including Cisco CCNP (route/switch), a Cisco CCDP for network design, and a PCNSE for Palo Alto Networks. I am always available for consulting for short-term and long-term projects. Thank you.
    Featured Skill Cisco ASA
    Cisco Certified Network Associate
    Cisco Router
    Network Design
    Virtual LAN
    VoIP
    Wireless Communication
    Ubiquiti
    Cisco Certified Network Professional
    Palo Alto Firewalls
    Security Engineering
    Computer Network
    VMWare
    Network Engineering
    Firewall
    VPN
  • $80 hourly
    • 5.0/5
    • (12 jobs)
    Passionate IT professional offering more than 15 years of experience in design, deployment and troubleshooting of medium to large scale fast converging optimized and scalable multi-site enterprise data center and campus network infrastructure, including 7+ years of leading successfully performing teams. Proven experience in transforming enterprise network infrastructure into a highly available, secure, and reliable environment. Adept at multitasking to achieve individual and team goals. Strong problem-solving skills, fast learner & excellent communication skills. The buck stops here.
    Featured Skill Cisco ASA
    Wireless Network Implementation
    Wireless Communication
    Wireshark
    Cisco Certified Network Professional
    WiFi
    Palo Alto Firewalls
    Cisco IOS
    Cisco
    Cisco Firepower Threat Defense
    Juniper
    Network Administration
    Cisco Meraki
    Network Security
    Fortinet
    VPN
    Ubiquiti
  • $125 hourly
    • 5.0/5
    • (20 jobs)
    Hi, I'm expert on Microsoft on-prem infrastructure, Microsoft 365, and cybersecurity with over 15 years of experience in the IT industry. I help businesses and individuals to leverage the power of Microsoft 365 and protect their data and systems from cyber threats. I have successfully completed many projects on Microsoft 365 migration, configuration, administration, and optimization for clients across various sectors and regions. I have also implemented cybersecurity solutions aligned to frameworks such as CIS v8 that included firewalls, identity security, endpoint detection & response, data governance & encryption, email & app protection, backup, and disaster recovery for clients who need to secure their sensitive information and assets. I have a passion for learning new technologies and staying updated on the latest trends and best practices in Microsoft 365 and cybersecurity. I have earned advanced certifications from Microsoft, such as Microsoft 365 Certified: Enterprise Administrator Expert and Microsoft Certified Master (MCM). I have excellent communication and collaboration skills. I am reliable, flexible, and committed to delivering high-quality work and exceeding client expectations. My rate may be higher than others but I’m more cost effective because I get things done correctly the first time and able to quickly adapt to changing requirements and challenges. If you are looking for a freelancer and expert on Microsoft 365 and cybersecurity who can help you achieve your goals and solve your problems, please contact me and let's discuss how we can work together. I look forward to hearing from you soon.
    Featured Skill Cisco ASA
    Microsoft Windows PowerShell
    Office 365
    Windows Server
    Microsoft Exchange Server
    NIST SP 800-53
    Microsoft Azure
    Microsoft Windows
    Microsoft Active Directory
    HIPAA
    Microsoft Teams
    Cisco IOS
    Microsoft Exchange Online
  • $75 hourly
    • 5.0/5
    • (26 jobs)
    Independent Cloud, Network, and Systems specialist Skilled in implementing and maintaining a wide range of technologies, including: -Windows/Linux servers -Azure and AWS cloud platforms -Firewalls, Routers, and Switches -M365 Security -Email Authentication: SPF, DKIM,DMARC,BIBI -DNS -Active Directory -VPN
    Featured Skill Cisco ASA
    Firewall
    Office 365
    Cloud Computing
    Windows Server
    Linux System Administration
    Email Security
    Microsoft Active Directory
    Microsoft Azure
    Computing & Networking
    Network Administration
    Network Design
    Cisco Meraki
    Network Security
    VPN
  • $90 hourly
    • 4.6/5
    • (7 jobs)
    PROFESSIONAL SUMMARY Heavily Experienced Network Architect/Engineer, with over 20 years of experience designing and managing large-scale WAN/LAN environments for multiple industries including Financial (Banking, Trading, SaaS, Private Equity), Manufacturing (Honeywell, Motorola, Church and Dwight), Airline (United, Boeing), and Healthcare. Heavy experience in environments with 50,000+ users in Multi-vendor WAN/LAN and Microsoft/Linux/VMWare and AWS, Azure, and GCP cloud environments. Self-motivated individual who is goal oriented with the ability to work well with others. Strategic thinker skilled in analyzing problems and making sound decisions. Adept at setting and exceeding group/individual objectives with strong organization and deadline focus. Multiple current Network and Security Certifications.
    Featured Skill Cisco ASA
    Cisco Certified Network Associate
    Cisco Meraki
    Cisco Certified Internetwork Expert
    Fortinet
    Cisco Firepower Threat Defense
    Cisco ISE
    Cisco
    Palo Alto Firewalls
    Computing & Networking
    Network Administration
    Cloud Computing
    Network Engineering
    Network Architecture
    Network Security
  • $78 hourly
    • 5.0/5
    • (2 jobs)
    Highly skilled and extensively trained IT professional with over 10 years of experience in network engineering, cybersecurity, infrastructure architecture, and IT project leadership. I have a proven ability to design, implement, and optimize complex network infrastructures that ensure high availability, scalability, and security for enterprise environments. My expertise extends to leading cross-functional teams, managing large-scale network deployments, and integrating cutting-edge technologies to enhance business efficiency. I specialize in network engineering and infrastructure, with extensive experience in designing and deploying enterprise-grade LAN/WAN architectures, SD-WAN, MPLS, VPNs, and cloud-based networking solutions across AWS, Azure, and Google Cloud Platform. I have deep proficiency in routing and switching technologies, including BGP, OSPF, EIGRP, STP, and VLANs, and I am adept at working with enterprise-class hardware such as Cisco, Juniper, Palo Alto, Fortinet, and Arista. My background in cybersecurity includes hands-on expertise in firewall configuration, intrusion detection and prevention systems, Zero Trust Architecture, endpoint security, and SIEM solutions. I have a strong track record of implementing and ensuring compliance with NIST, CIS, ISO 27001, and SOC 2 security frameworks. I also bring significant experience in cloud and hybrid infrastructure, deploying and securing cloud-based networking solutions using AWS VPC, Transit Gateway, Direct Connect, Azure VNets, ExpressRoute, and Kubernetes-based containerized deployments. I am well-versed in infrastructure as code methodologies using Terraform, Ansible, and CloudFormation. In addition to infrastructure and security, I have a strong foundation in network automation and scripting, leveraging Python, Bash, PowerShell, and YAML to automate network configurations, security policies, and monitoring. My expertise extends to network programmability, software-defined networking, and DevOps practices, including CI/CD pipelines and version-controlled infrastructure deployments. I also have extensive experience in high-availability solutions, implementing load balancing strategies using F5, HAProxy, and NGINX, as well as redundancy and failover clustering using HSRP and VRRP to ensure business continuity.
    Featured Skill Cisco ASA
    C++
    Network Engineering
    Azure App Service
    VMWare
    FTP
    Perl
    Ansible
    Python
    Juniper
    OpenVPN
    VPN
    Cisco Prime
    Multiprotocol BGP
    OSPF
  • $125 hourly
    • 5.0/5
    • (10 jobs)
    *Upwork Expert-Vetted Talent = top 1% on Upwork* *A Cisco CCIE-certified expert in Enterprise Infrastructure* I bring expert-level knowledge and hands-on experience in Networking and Security. My proficiency spans across a diverse range of technologies, including Cisco, Palo Alto, AWS, and Azure. With a deep understanding of complex network environments, I excel at designing, implementing, and securing robust infrastructure solutions that meet the unique needs of businesses.
    Featured Skill Cisco ASA
    Cisco CallManager
    Cisco Meraki
    Cisco
    Cisco IOS
    Cisco Firepower Threat Defense
    Palo Alto Firewalls
    Cisco ISE
    Cisco Router
    Cisco Certified Internetwork Expert
  • $95 hourly
    • 5.0/5
    • (6 jobs)
    Greetings! I am a highly skilled and certified cybersecurity professional with a strong academic background, holding a Masters in Information and Communication Systems Security. My expertise includes a range of cybersecurity domains, and I am certified in CISSP (Certified Information Systems Security Professional), CySA+ (CompTIA Cybersecurity Analyst), AWS Solutions Architect Associate, Splunk 7.x Fundamentals, ITIL v3, ICND 1 & 2 (Interconnected Cisco Network Devices), MCDBA ( Microsoft Certified Database Administrator) MCSE (Microsoft Certified Systems Engineer) Key Skills: ------------ Network Security Threat Intelligence Vulnerability Assessment Incident Response Security Policies and Procedures Risk Management Penetration Testing Security Awareness Training Services: ----------- I specialize in providing comprehensive cybersecurity solutions, from designing robust network security architectures to conducting thorough vulnerability assessments. My goal is to safeguard your digital assets and ensure a resilient cybersecurity posture. Why Choose Me: -------------------- Certified Expertise: Holding CISSP and CySA+ certifications, I bring industry-recognized expertise to fortify your cybersecurity defenses. Academic Excellence: With a Masters in Information and Communication Systems Security, I combine practical skills with a solid theoretical foundation. Proactive Approach: I adopt a proactive stance in identifying and mitigating cybersecurity threats, ensuring your organization stays ahead of potential risks. Previous Work: ------------------ Implemented NIST 800-53 RMF Framework for Enhanced Cybersecurity Led the development and execution of comprehensive cybersecurity strategies aligning with NIST 800-53 RMF for multiple critical projects within the organization. Conducted thorough risk assessments, identified vulnerabilities, and recommended mitigation strategies in accordance with NIST guidelines. Collaborated with cross-functional teams to ensure the integration of security controls and measures throughout the System Development Life Cycle (SDLC). Managed the documentation and continuous monitoring of security controls, ensuring compliance with NIST 800-53 standards. Conducted regular security audits and assessments, identifying and addressing non-compliance issues promptly. Played a key role in the preparation and successful completion of NIST-based security assessments and audits conducted by external agencies. Provided training and guidance to project teams on NIST 800-53 RMF processes and security best practices. Stayed abreast of the latest developments in cybersecurity and NIST standards, incorporating relevant updates into existing security protocols. Collaborated with the Chief Information Security Officer (CISO) to develop and update security policies and procedures in line with NIST 800-53 guidelines. Let's Enhance Your Cybersecurity: ----------------------------------------- If you are seeking a dedicated cybersecurity professional with a proven track record and academic excellence, let's connect. I am ready to contribute my skills to strengthen your organization's cybersecurity framework.
    Featured Skill Cisco ASA
    NIST Cybersecurity Framework
    Microsoft SCCM
    Windows Administration
    NIST SP 800-53
    Linux System Administration
    Security Analysis
    Cybersecurity Management
    Splunk
    VMware ESX Server
    Magento 2
    Firewall
    Network Administration
    Network Design
  • $130 hourly
    • 4.2/5
    • (67 jobs)
    I am a Network Engineer/Consultant with more than ten years of experience. My primary focus is Cisco Technologies. I am certified in Security, Wireless, Collaboration(Voice), Design, Data center.. I help businesses design, build and manage networks saving them time and money. I just get things done with lots of common sense, usability, and best practices. Cisco/Meraki firewalls (ASA/Firepower), Routers, Switches, Wireless... Cloud technologies AWS and Azure CCNA R&S, CCNA Security, CCNA Wireless, CCNA Collaboration, CCNP R&S
    Featured Skill Cisco ASA
    Network Planning
    Business with 100-999 Employees
    Network Engineering
    Wireshark
    Network Design
    Cisco Certified Network Associate
    Cisco Meraki
    Network Monitoring
    Wireless Network Implementation
    Network Analysis
    Cisco Certified Network Professional
    Network Administration
    Network Security
  • $100 hourly
    • 5.0/5
    • (2 jobs)
    Offering a solid background based on formal training, relevant certification, and 12 years progressive experience demonstrating superior personal initiative, technical expertise, performance enhancement creativity, and consistent performance success. Expert in enterprise level IT, IS, LAN/WAN/MAN networks, security, wireless systems, and complex hub and spoke platforms. Proficient in the use of a wide range of current software tools for disaster avoidance/response, systems restoration, database administration, debugging, identification of hidden or fraudulent activities, and all other faults impacting peak system performance.  Highly reliable, industrious, productive, and versatile team player and employer asset with a broad range of core competencies developed from multifaceted training and experience in enterprise IT setup and support, leadership/project management, advanced helpdesk services, hardware/software configuration, network administration, and communication/link engineering. CORE COMPETENCIES • Seasoned IT and Telecom Technical Professional • Full Scope LAN / WAN / MAN Oversight and Administration • Internet / Intranet Configuration – System Tests / Patches • Hardware/Software Maintenance – Enterprise Backups • IT Asset Inventory Management / Licenses • Research, Procurement, Technology Upgrades Implementation • Cutting Edge Cyber Security / Vulnerability Management • Strategic Planning / Enterprise IT Analysis / Change Management • Enterprise Network Design, Architecture, Footprint • Policy Writing / User Manuals / Training Programs • 11+ Years in Cloud and Data Center Networking • Customer Service / Account Management / Problem Solving • Data & PII Integrity / Firewalls / Wireless Access • Maintenance / Vendor Relations / Contract Management • Public Relations / Community Advocacy / Branding • Program Administration / Summary Reporting / Presentations OPERATING Windows (XP/Vista/7/8/10/11); Mac OS / OSX; Cisco IOS (12.0 / 15.2). SYSTEMS: Aruba Operating System (AOS) 3.4.5.1 – 6.3.1.9 NETWORKING WINS/DNS/DHCP; BGP, RIP, EIGRP, OSPF, VPLS, VDC, VPC, MPLS, STP, RSTP, VLAN, NAT/PAT Gateway Redundancy Protocols (HSRP, VRRP, and GLRP), OTV Fortinet SD-WAN TOOLS: ServiceNow, Protocol Management; Ports and Services Utilization HARDWARE: Cisco Switches: 2950, 2960, 2960S, 2960X, 3650X, 3750G, 3750X, 3850, 9200, 4506e, 4507re, 6509-E Cisco Nexus: 9k,7k, 5k, MDS Cisco Routers: 1841, 2801, 2811, 2901, 2921, ISR 4221, 4321,4331,4431,4451, ASR 1001-X. Cisco Firewalls: ASA 5505, 5520, 5545X & Firepower-2110 Cisco WLC & AP: 2504, 5508 1242, 1252, & 1260 Cisco ISE experience Meraki Switches: MS220 & MS320; Meraki Access Points: MR26, MR34, MR42, & MR66 FortiGate Firewalls: 60D, 60E (Wi-Fi), 100D, 200D 600E Meraki Firewall: MX80; Other Firewalls: Palo Alto Aruba Wireless Controllers: 7220 & 6000M3; Aruba Access Point models 105,124, 125. SOFTWARE: Microsoft Word/Excel/Outlook/PowerPoint/OneNote/Teams/Visio; MS Project; Symantec Firewall. Mozilla Firefox; CA Spectrum Solar Winds/ORION; Super PuTTY; TFTP Server; Airwave Wireless Network Monitoring; Remedy Ticket System; Triole Ticket System; Logmein123.com Remote Support. Nagios; Sprint Encompass (MPLS); Ekahau (Wireless Site Survey); ExtraHop, ServiceNow, GitHub LINKING LAN/WAN/MAN Communications; AWMS Wireless Management System; Aruba 7220, 6000, and 3200 & TELECOM Wireless Controllers; Access Point Models (105 / 124 / 125) T1 and T3 Technologies ECPI UNIVERSITY (formerly: ECPI College of Technology) - Virginia Beach, Virginia Bachelor of Science in Electronics Engineering Technology, Minor in Wireless Systems (2011) CISCO Certified: Network Associate / Network Professional / Enterprise Core / Enterprise Advanced Infrastructure Implementation • Microsoft Certified: Azure Network Engineer Associate
    Featured Skill Cisco ASA
    Cisco IOS
    Network Planning
    Network Engineering
    Network Architecture
    Network Security
    Network Administration
    FortiGate Firewall
    Fortinet
    Cisco Router
    Enhanced Interior Gateway Routing Protocol
    Cisco Certified Network Professional
    Cisco Meraki
    Network Design
    OSPF
  • $65 hourly
    • 5.0/5
    • (63 jobs)
    I have been working as a Linux server administrator for more than 20 years. In addition to that, I have extensive experience as a senior network engineer for both enterprise and small office/home office (SOHO) clients. My background also includes a strong expertise in VOIP engineering for Internet service providers (ISPs), with certifications in HDwifi and wifi design/administration. I have worked as a WISP engineer, handling routers and switches from Mikrotik, Cisco, and Juniper. Moreover, I possess the skills to create custom shell scripts using bash, python, and expect. Currently, I hold certifications as a Ubiquiti UBWA, UEWA, and UBRSA certified admin. Over the past 10 years, I have gained valuable experience in Vmware, specifically with Veeam backup, Nakivo, and AS backup integration, configuration, and administration. I have worked with Cisco UCS and Nimble infrastructure, ensuring smooth operations. Additionally, I am well-versed in Zerotrust network VPN, Zerotier, Zscaler, and hold an AWS Certified Associate certification.
    Featured Skill Cisco ASA
    VMware Administration
    Session Initiation Protocol
    Storage Area Network
    Linux System Administration
    Cisco IOS
    Database Administration
    Cloud Computing
  • $120 hourly
    • 5.0/5
    • (28 jobs)
    🟢 Available Now 🔝 *** EXPERT-VETTED | TOP-RATED PLUS - Top 1% Network & Virtualization Expert *** with 100% JOB SUCCESS. 👌 A HIGHLY SKILLED SUBJECT MATTER EXPERT (SME) NETWORK and Virtualization (VCF, NSX-T, AVI and vRealize) in Upwork. Specialized in modern technologies and engineering aspects with a wide range of analytical, configure, administer, manage, and troubleshooting skills. 🥇 Here are the certifications that I have: ✔️ 5x CCIE #37259 (Wireless | Data Center | Security | Service Provider | Enterprise Infrastructure) ✔️ 3x JNCIE ( Juniper Data Center#88 | Security#352 | Enterprise#615 ) ✔️ Cisco Certified Design Expert ( CCDE #2016::44) ✔️ VMware Certified Implementation Expert - VCIX-NV (3.x) | VCIX-DCV (7.x) | VCP-DCP6.5 (Specialized in NSX-T 3.x, NSX 4.x , vSphere 7.x , vSphere 8.x, VSAN, Avi Advanced Load Balancer [ALB] ) ✔️ vSphere/NSX 4.x with Tanzu and Kubernetes expert ✔️ DevNet ✔️ Redhat RHCSA 💥 I take up projects and responsibilities only when I am confident and only when I can provide 100% satisfaction for my client. + 12 years experience as Senior Network Engineer / Network Architect + 7 years experience as TAC Lead Solutions focused meticulous and result-oriented Senior Network Engineer professional offering above 18 years of a successful career in the IT & Telecom arena distinguished by commended performance and proven results. Network Engineering Key Qualifications: ✅ Deep understanding of Routing protocols and Overlay - EIGRP, OSPF, IS-IS, BGP, MP-BGP, VRF, Multicast, AnyCast, MPLS, L2VPN, L3VPN, MPLS-TE, RSVP, LLDP, DSCP/QoS, VXLAN, EVPN, SD-WAN, SDA, ACI, DNA Center ✅ Experience with Routing & switching platforms - Cisco Router ASR9K, ASR1K, CRS, NCS, 7500, 7600, 7200, CSR, 3900, 2800, Catalyst 9200, 9300, 9400, 9500, 9600, 8200, 8300, 8500, 6500, 6800, 6500, 4510, 4948, 3850, 3700, 3560, 2960, Nexus 9K (NX-OS, ACI), 7k, 5k, 3k, 2k, Cisco ASA55xx, FTD, FMC, Juniper QFX5100, QFX5110, EX 9200, 4500, 4300. 3300, 2200, SRX) ✅ Knowledge of Wireless standards and protocols - WPA/WPA2, 802.1x, 802.11a/b/g/n/ac/r/k, CAPWAP, RMM, WMM, X.509, CA Authority, MDM, AAA, Kerberos, Captive Portal, Guest Access, Posturing, Profiling, DACLs, PACLs ✅ Experience and deep understanding of AAA appliances - Cisco ISE, Cisco Unified Computing System UCS B Serious, UCS C Serious, Cisco WAAS, ACS, NAC, AAA, Single Sign-On. ✅ VCF and NSX-T Architecture and Design. Focused virtualization  Full Stack SDDC and VCPP also I am practicing NSX-V, NSX-T, Multi-Tenancy Architecture, vCloud Director, vCloud Availability, vRealize Suite, vSAN, VXRAIL, Horizon View, Physical SAN storages (iSCSi, Fibre Channel) and Velocloud (SD-WAN) ✅ Linux, personal, KVM, OVS, OpenFlow, NFv (CSR 1000v, vSRX, or related NFv experience) ✅ Proven track record of excellence in analyzing business requirements to develop technical network solutions and their framework; Leadership role on network infrastructure projects to design and architect large-scale networks. ✅ Instrumental in developing architectural strategy, including technology standardization and modernization of enterprise, data center, and disaster recovery network infrastructures. ✅ Adroit in writing reference architectures and strategic roadmaps for network & and network security technologies, and solution architectures for various infrastructure initiatives ✅ Synchronize with other Architects in designing solutions that are reusable, quick to market, and lower the total cost of ownership. ✅ Highly articulate, demonstrating exceptional relationship-building, communication, analytical and interpersonal skills. ✅ Specialized Cisco ISE infrastructure deployment administration and operations as well as extensive experience in dot1x configuration and troubleshooting for wired and wireless networks. Wired and wireless guest portal deployment expert.. ✅ Extensive experience configuring and troubleshooting AnyConnect User tunnels and Management tunnels by using certificate and ISE for authorizing the group policies along with Hostscan and posture pre-deploy module. 💥Joint adventure with a partner that provides popular cloud expertise as follows; ✅ Amazon Web Services (AWS) ✅ Microsoft Azure ✅ Google Cloud ✅ Alibaba Cloud
    Featured Skill Cisco ASA
    Cisco Certified Network Professional
    Juniper
    Cisco ACI
    Cisco Certified Internetwork Expert
    Network Design
    VMware vSphere
    Cisco Certified Design Expert
    VMware NSX
    Technical Support
    Data Center Migration
    Wireless Communication
    Virtualization
    VPN
    Cisco ISE
  • $125 hourly
    • 5.0/5
    • (2 jobs)
    System administrator with extensive experience in Microsoft Windows ( XP,7, 8, 2000, 2003, 2008, 2012), Microsoft DNS and DHCP Services, Novel Directory Services, Novell NetWare 6.x, VMWare ESX 4.1, Cisco Routers/Switches/ASA/Pix, WatchGuard Firewalls, IPSec/SSL VPN Knowledge of Hardware, Software, and Operating System Installation, Configuration, Diagnostics and Troubleshooting. Experienced in Microsoft Office Suite, Lotus Notes 6, Norton Ghost, Norton System Works. Skilled in LAN, WAN, VPN, RAID, SAN, Networking Essentials and Protocols, Veritas Backup Exec. Excellent background in Systems-Operation training, technical writing, support documentation, and Customer Service
    Featured Skill Cisco ASA
    VMware ESX Server
    Citrix
    Citrix Virtual Apps & Desktops
    VPN
    System Administration
    Linux System Administration
    Server
    Network Administration
  • $55 hourly
    • 5.0/5
    • (2 jobs)
    Experienced OT Cybersecurity consultant with a strong background in Industrial Control Systems (ICS) and Operational Technology (OT) security. Possess over 7 years of experience in assessing, designing and implementing security solutions for critical infrastructure and manufacturing environments. In-depth understanding of ICS protocols and OT networks, as well as industry standards such as NIST SP 800-82 and ISA/IEC 62443. Adept at bridging the gap between technical and non-technical stakeholders, ensuring that security solutions are aligned with business needs. Proven ability to lead teams, drive projects forward and deliver results under tight deadlines.
    Featured Skill Cisco ASA
    OSPF
    Cisco Certified Network Professional
    Cisco Router
    Network Security
    Network Engineering
    VPN
  • $50 hourly
    • 5.0/5
    • (3 jobs)
    I’m a certified and experienced Network & Security Engineer with over 15 years of hands-on work in secure infrastructure design, firewall configuration, VPN implementation, and cloud-network integration for businesses of all sizes. ✅ What I can help you with: Firewall setup and hardening (Fortinet, Cisco ASA, Palo Alto, pfSense, SonicWall, Sophos, WatchGuard, Ubiquiti, MikroTik) VPN setup: IPsec, SSL, OpenVPN, L2TP, WireGuard, Site-to-Site & Remote Access Router & switch configuration (Cisco, MikroTik, Juniper, TP-Link, Ubiquiti) Windows Server environments (AD, DNS, DHCP, GPOs, RADIUS) Secure network architecture design for on-premise, hybrid, and cloud (Azure, AWS) VLANs, NAT, ACLs, Port Forwarding, DMZ setups Intrusion Detection & Prevention (IDS/IPS), traffic shaping, content filtering Network audits, documentation, compliance checks, and performance optimization Experience working in merger/acquisition environments and multi-site integrations 💡 Certifications: Cisco (CCNA / CCNP) Fortinet NSE [level] Palo Alto PCNSA / PCNSE MikroTik MTCNA / MTCRE CompTIA Security+ / Network+ (if applicable) 🛠️ Tools & Platforms: Firewalls: FortiGate, Cisco ASA/Firepower, Palo Alto, pfSense, SonicWall, Sophos, WatchGuard, Ubiquiti Edge, MikroTik Routers/Switches: Cisco IOS/IOS-XE, MikroTik RouterOS, Juniper, Ubiquiti, TP-Link VPN Tools: WireGuard, OpenVPN, IPsec, SSL VPN, AnyConnect Monitoring: Zabbix, PRTG, SolarWinds, Wireshark, NetFlow OS & Platforms: Windows Server, Linux (Ubuntu, CentOS), Hyper-V, VMware ESXi, Parallels Cloud & Remote: Azure, AWS, RDP, SSH, Bastion Hosts 🧠 I focus on building reliable, secure, and scalable networks. I communicate clearly, document everything, and solve complex issues fast. Let’s work together to secure and streamline your IT infrastructur
    Featured Skill Cisco ASA
    Cisco ACI
    Cisco IOS
    VPN
    F5, Inc.
    Troubleshooting
    Palo Alto Firewalls
    Cisco
    Multiprotocol BGP
    Multiprotocol Label Switching
    Routing
  • $80 hourly
    • 5.0/5
    • (1 job)
    Are you tired of your ISP delivering you slow speeds ? Are you experiencing a weak wi-fi connection at home? Having problems with your companies network infrastructure and need extra assistance? Don't look any further! My name is Brenden Bass and I've been a network engineer for 5 years. My favorite thing about I.T is being able to troubleshoot and resolve problems for my customers. From home wi-fi, to enterprise-level integration, I'm a one stop shop for all your networking needs. If you are interested in talking about an issue you are experiencing, please send me a message or call me at 702-423-9862. Thank you and have a blessed day! ● 8 years of network engineering and design ● 8 years of network troubleshooting ● 6 years of Red/Black architecture ● 8 years of wireless experience ● 4 years military/DOD experience ● 3 years electric utility industry ● SCADA experience ● DISA STIGs experience ● NERC/CIP experience ● Palo Alto NGFW/Panorama ● Cisco ASA/Catalyst ● Juniper EX/MX ● HPE Aruba Switches & APs ● Dell Switches ● Aruba Clearpass ● Microhard ● Cradlepoint ● BeyondTrust ● General Dynamics Taclane ● SCADA Architecture ● Ethernet installation and termination ● Ubiquiti Radios/APs
    Featured Skill Cisco ASA
    Trunking
    LAN Implementation
    Wireless Communication
    WiFi
    Firewall
    SCADA
    Cisco
    Multiprotocol BGP
    OSPF
    Palo Alto Firewalls
    VPN
    Juniper
    Aruba
    Network Engineering
  • $35 hourly
    • 5.0/5
    • (1 job)
    Qualifications Summary CCNA Routing & Switching and CCNA Security Certified Network Engineer with 24 years in the network and telecommunication field including 10 years in the financial, 3 years in the retail, and 7 years in the telecom sector of network ing. Responsible for monitoring, troubleshooting, and implementing LAN/WAN, SDWAN and wireless network solutions using multiple technology solutions. Lead Network Engineer supporting stores, distribution centers, and corporate campus network s. Knowledge and experience with multiple vendor platforms for network connectivity including are Palo Alto, Juniper, Aruba Network s switches, Aruba Airwave, Clearpass, Cisco routers, switches, and firewalls and Riverbed.
    Featured Skill Cisco ASA
    AI Security
    Data Center Design
    Multiprotocol BGP
    OSPF
    SolarWinds VoIP & Network Quality Manager
    Juniper
    Aruba
    Cisco Meraki
    dot1x
    Computer Network
    Computing & Networking
    Network Design
    Network Administration
    Network Engineering
  • $75 hourly
    • 5.0/5
    • (3 jobs)
    CCIE Security (#66039) A highly proficient and internationally exposed Cybersecurity Professional with Expert knowledge across and multiple industries including DoD Cyber operations
    Featured Skill Cisco ASA
    Cisco Certified Network Professional
    Cisco
    Cisco Certified Internetwork Expert
    NIST Cybersecurity Framework
    Computing & Networking
    Computer Network
    System Security
    Network Engineering
    Cybersecurity Management
    Network Security
  • $75 hourly
    • 4.7/5
    • (2 jobs)
    15+ years of hands-on experience in Cybersecurity, AI-driven Security, and Cloud Infrastructure. I have worked with industry leaders like AT&T, Amazon, USDA, and T-Mobile, helping them build secure, scalable, and resilient digital environments.With my expertise and a dedicated team behind me, I am more than confident in securing your business, no matter how complex your infrastructure is. My Expertise Includes: - Cybersecurity & Risk Management – SIEM, SOAR, Zero Trust Security, IDS/IPS, Threat Intelligence - Cloud Security – AWS, Azure, GCP | IAM, Compliance (NIST, ISO 27001, HIPAA, GDPR) - Enterprise Networking – Cisco, Palo Alto, Fortinet | SD-WAN, SASE, VPNs - AI & Machine Learning for Security – Threat Detection, Anomaly Analysis, Predictive Analytics - Network Analytics & Automation – Python, Bash, PowerShell for Security & Network Optimization How We Can Help You: ✔ Conduct cyber risk assessments & penetration testing to identify vulnerabilities ✔ Design and implement secure network architectures for high-traffic businesses ✔ Set up and manage cloud security frameworks for AWS, Azure, and GCP ✔ Automate security monitoring and incident response using AI and Machine Learning With a proven history of securing enterprise-level networks, I’m ready to help you build a stronger and more resilient business.
    Featured Skill Cisco ASA
    Incident Response Plan
    Threat Detection
    Encryption
    Penetration Testing
    Software Testing
    Network Architecture
    Proxmox VE
    Microsoft Hyper-V Server
    VMWare
    VPN
    Firewall
    Cisco Router
    Cisco Certified Network Associate
    Network Security
  • $85 hourly
    • 5.0/5
    • (1 job)
    Summary Enthusiastic IT Director / Network Administrator proudly offering over 20 years' experience in infrastructure management, new technology implementation, vendor relations, and performance improvements. Skilled in task prioritization and troubleshooting.
    Featured Skill Cisco ASA
    Data Center Design
    High Availability and Disaster Recovery
    Business Continuity Planning
    Contract Negotiation
    Project Management
    VMware ESX Server
    Microsoft Hyper-V Server
    Cisco Meraki
    Microsoft Server
    Network Engineering
    Architectural Design
    System Administration
    Computing & Networking
    Computer Network
  • $200 hourly
    • 4.8/5
    • (419 jobs)
    Bridging Innovation in IT and Space Technology With a career in Systems Engineering and Solutions Architecture, I have helped SMEs, governments, and global enterprises optimize and scale their IT infrastructure. My expertise extends beyond traditional IT, integrating cutting-edge advancements in Space Technology to drive innovation. Founder & CEO: I am the owner of Cloudvoid (cloudvoid.com), a private cloud, MSP, and tech solutions company that provides tailored IT and cloud services for businesses worldwide. Certified Expertise: Holding over a dozen certifications across Azure, AWS, Microsoft Windows Server, and Linux/Unix, along with certifications from MIT in Space Technology and IT, I bring deep technical knowledge and strategic insight. Proven Impact: I have worked with more than 600 businesses worldwide, delivering solutions in cloud deployments, enterprise architecture, IT support, and systems administration. Industry Leader: Consistently ranked in the top 1% of my field for the past decade, I have built a reputation for delivering results and solving complex technology challenges. From cloud infrastructure to space technology applications, I provide strategic, hands-on solutions that drive efficiency, scalability, and innovation. Let’s build the future of technology together.
    Featured Skill Cisco ASA
    Microsoft Azure SQL Database
    Azure DevOps
    Microsoft SQL Server Administration
    Azure Cosmos DB
    Azure App Service
    Azure Machine Learning
    Office 365
    Microsoft 365 Copilot
    Cisco ACI
    Microsoft Hyper-V Server
    VMWare
    IBM Cloud
    AWS Development
    Network Engineering
    Network Design
    Solution Architecture
    Server Administration
    Cloud Architecture
    Windows Server
    Microsoft Azure
  • $55 hourly
    • 5.0/5
    • (1 job)
    Seeking a (Part-time/Project-based) position in the technology field where my skills and knowledge can be best utilized in the successful completion of challenging assignments and be responsible to provide the team with technical leadership, creativity, and technical judgment.
    Featured Skill Cisco ASA
    Internet Protocol Security
    OpenVPN
    Palo Alto Firewalls
    Data Center Design
    Multiprotocol Label Switching
    Multiprotocol BGP
    TCP/IP
    Enhanced Interior Gateway Routing Protocol
    Cisco Certified Network Professional
    Juniper
    Network Engineering
    VPN
  • $100 hourly
    • 5.0/5
    • (9 jobs)
    Experienced Consultant and Developer based in Cincinnati, Ohio. With years of professional IT experience in the Utilities, ISP, Higher-Ed and Defense industries, I'm able to pair my technical know-how with my soft-skills and project management abilities to ensure your project is done right. My business, Helios IT Services, serves clients nationwide via UpWork and many other platforms! Stetson Blake Owner Helios IT Services
    Featured Skill Cisco ASA
    Cisco IOS
    Ubiquiti
    Network Design
    Wireless Network Implementation
    Linux System Administration
    Cisco Certified Network Associate
    Network Engineering
    Python
    CentOS
  • $50 hourly
    • 5.0/5
    • (72 jobs)
    CCIE R&S Certified Network Engineer with 10 years of experience in Networking. - Enterprise data and voice networks; - Service Provider networks; Experience in IOS-XR platforms; - Wireless networks; - Network security with Cisco ASA; CCIE R&S Certified. Experience with following Cisco devices: - Cisco IOS XR: ASR9K, NCS5K - Cisco SOHO and branch office routers: Cisco 800, 1700, 1800, 1900, 2800, 3600, 3700, 3800 series - Cisco service provider routers: Cisco 7200, 7300, 7500, 7600, GSR 12000, ASR 1000, ASR 9000 platforms - Cisco Catalysts switches: 2950, 2960, 3550, 3560, 3750, 3800, 4500, 6500 - Cisco ME series switches: 3400, 6524 - Cisco PIX 515E Experienced in configuring: - Routing: IGP (EIGRP, RIP, OSPF), BGP, NAT, PAT, PBR, MPLS (MPLS-VPN, EoMPLS, VPLS) - Switching: VLANs, VTP, dot1q, q-in-q, Rapid PVST+, MSTP. - Network security: VPNs (IPSEC, IPSEC/GRE), ACLs, Layer 2 Security Features (port security, - DHCP snooping, dynamic ARP inspection, IP source guard) - High Availability: HSRP, VRRP, GLBP, Etherchannel, SSO, IP SLA. - WAN: PPP, PPPoE, PPP Multilink, HDLC. - QoS: Traffic policing and shaping, traffic prioritization. - Cisco PIX: NAT, Failover, Remote VPN, ACLs. I'm looking for new interesting projects related to implementing and designing Cisco IP Networks and IT consulting.
    Featured Skill Cisco ASA
    Cisco Certified Internetwork Expert
    Network Equipment
    Cisco Certified Network Associate
    Network Administration
    Virtual LAN
    Cisco WLC
    Cisco Router
    Cisco Certified Network Professional
    Network Design
    TCP/IP
    Cisco IOS
    VPN
    Network Security
    Internet Protocol Security
  • $60 hourly
    • 5.0/5
    • (43 jobs)
    Mission Statement With 20+ years of providing I.T. support and services for some of the top Fortune 100 companies in the world. I'm here to provide clients with remote administration and support services that provide the operational framework for the delivery of each organizations I.T. systems and software to meet their requirements using Open Source software, Cloud Computing and Datacenter services. I can and will deliver great results with a process that’s timely, collaborative and at a great value for my clients. * Ability to build and maintain customer relationships to allow on-going long term support services. * Provide solutions that guarantee a cost effective implementation and integration of business critical applications and components. * Coordinate and facilitate consultation with clients to define systems and business requirements for new technology implementations. * Establish clear plans and priorities. * Produce high quality technical and briefing documents. * Excellent communications skills (verbal, written and listening). Remote Administration and Support Services: Core Competencies • Cloud Platforms: AWS, Azure, GCP, IBM. • Operating Systems: Linux (Amazon Linux, Red Hat, Debian, Ubuntu), UNIX (IBM AIX, Oracle Solaris), Windows Server, and WSL2. • Infrastructure as Code (IaC): Terraform, CloudFormation. • CI/CD: GitHub Actions, GitLab CI, Bitbucket Pipelines, AWS CodePipeline, Jenkins • Containerization & Orchestration: Docker, Kubernetes, ECS, EKS, Helm, RedHat OpenShift • GitOps: Implemented GitOps workflows using Flux, Argo CD, and GitLab CI to manage Kubernetes infrastructure and application delivery, enabling declarative, version-controlled, and automated deployments. • Configuration Management: Ansible, Puppet, Salt Amazon Web Services (AWS)  Compute: EC2, ECS, EKS, Lambda, ASG’s  Networking & Content Delivery: VPC, Transit Gateway/VPC Peering, Route53 DNS, Cloudfront, ELB (ALB/NLB/CLB), AWS Global Accelerator, Client VPN Endpoints  Storage: S3, EBS, EFS, FSx, DLM, AWS Backup  Databases: RDS (PostgreSQL, MySQL, Aurora), DynamoDB, Elasticache, Neptune, DocumentDB, QLDB  Security, Identity & Compliance: IAM, IAM Identity Center, Control Tower, Organizations / SCP, WAF Shield, KMS, Secrets Manager, Cognito  Monitoring & Logging: CloudWatch, CloudTrail, AWS X-Ray, AWS Config  Developer Tools & Automation: CodePipeline/CodeBuild/CodeDeploy, AWS CLI/SDK’s/CDK, CloudFormation/Terraform via AWS Provider, Systems Manager (SSM, Sessions Manager, Patch Manager)  Migration & Hybrid Cloud: AWS Migration Hub, Server Migration Service (SMS), Database Migration Service (DSM), Direct Connect/VPN  Analytics & Machine Learning: Athena, Glue, Kinesis/Firehose, SageMaker (ML) Google Cloud Platform (GCP)  Compute: Compute Engine, GKE, Cloud Run, Cloud Functions  Networking: VPC (Global), Shared VPC, Cloud Load Balancing, Cloud NAT/Cloud VPN/Interconnect, Cloud DNS, Cloud CDN/Traffic Director  Storage: Cloud Storage, Persistent Disks, Cloud Storage Transfer Service, Backup & DR  Databases: Cloud SQL (PostgreSQL & MySQL), Firestore/Datastore (NoSQL), Cloud Spanner (Distributed SQL), Bigtable  Security & Identity: IAM & Roles, VPC Service Controls, Secret Manager, Identity-Aware Proxy (IAP), BeyondCorp  Monitoring, Logging & Operations: Cloud Logging, Cloud Monitoring (formerly Stackdriver), Error Reporting/Trace/Profiler, Cloud Audit Logs  Developer Tools & DevOps: Cloud Build, Artifact Registry/Container Registry, Development Manager/Terraform via GCP Provider, Cloud Scheduler, Cloud Shell/gcloud CLI  Hybrid & Multicloud: Anthos, Migrate from Compute Engine, Cloud Interconnect  Analytics & ML/AI: BigQuery, Dataflow/Dataproc, Pub/Sub, Vertex AI Microsoft Azure:  Compute: Azure Virtual Machines, Azure App Service, Azure Kubernetes Service (AKS), Azure Functions, Virtual Machine Scale Sets (VMSS)  Networking: Virtual Network (VNet), Azure Load Balancer/Application Gateway, Azure DNS, ExpressRoute/VPN Gateway, Azure Front Door/Traffic Manager  Storage: Azure Blob Storage, Azure Files, Azure Disks (Managed), Azure Backup/Recovery Services Vault  Databases: Azure SQL Database/Managed Instance, Cosmos DB (NoSQL), Azure Database for PostgreSQL/MySQL/MariaDB, Azure Cache for Redis  Security, Identity & Access: Azure Active Directory (AAD), RBAC/Conditional Access, Azure Key Vault, Defender for Cloud, Microsoft Entra ID, Azure Policy  Monitoring & Management: Azure Monitor, Log Analytics/Kusto (KQL), Azure Alerts/Workbooks, Azure Automation/Update Management  DevOps & Tools: Azure DevOps (Repos, Pipelines, Artifacts), GitHub Actions (with Azure Integration), ARM Templates/Bicep/Terraform, Azure CLI/Powershell  Hybrid & Migration: Azure Arc, Azure Migrate, Azure Site Recovery, Azure Stack  Analytics & AI: Azure Synapse Analytics, Azure Data Factory, Event Hubs/Service Bus, Azure Machine Learning, Cognitive Services Education: B.S.E.E.T. DeVry Institute of Technology
    Featured Skill Cisco ASA
    Linux System Administration
    Jenkins
    AWS CodeDeploy
    Amazon Web Services
    Docker
    Progress Chef
    Google Cloud Platform
    Python
    Firewall
  • $110 hourly
    • 5.0/5
    • (71 jobs)
    I have 20+ years of experience in senior networking and security positions supporting complex network infrastructures, both global and domestic. I have obtained a number of industry certifications from organizations such as Cisco, Microsoft, Citrix, and SANS and currently support a number critical networks for a diverse range of customers in a variety of industries including healthcare and defense. My services are often called upon by other IT solution providers to resolve more complex networking issues that their internal support staff have been unable to resolve. I am very security focused and as such hold a number of security certifications in the disciplines of Penetration Testing, Incident Handling, and forensic examination which allows me to ensure that my customers are provided with security centric solutions and support. I am happy to provide references and case studies upon request. Certifications ============== :: GIAC Certified Penetration Tester :: GIAC Certified Forensic Examiner :: GIAC Certified Incident Handler :: Cisco Certified Network Professional - Security (CCNP - Security) :: Cisco Certified Network Associate (CCNA) :: Microsoft Certified Systems Engineer (MCSE) Devices & Technologies ==================== :: Cisco ASA Firewalls (5500, 5500X) :: Cisco Firewall Threat Defense (FTD) :: Cisco Firepower :: Cisco Routers & Switches (Catalyst and Nexus) :: Cisco Wireless LAN Controllers (WLC) :: Citrix Netscaler :: Remote Access and L2L VPN (including DMVPN)
    Featured Skill Cisco ASA
    Cisco Certified Network Professional
    Network Penetration Testing
    Cisco Router
    Computer Network
    Cisco Certified Network Associate
    Network Administration
    Network Security
    Cisco ISE
    Network Engineering
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