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Clients rate Firewall developers
Rating is 4.7 out of 5.
4.7/5
based on 182 client reviews
  2. Development & IT Talent
  3. Firewall Developers
  4. (Current) United States
  • $98 hourly

    • 4.7/5
    • (83 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 Firewall
    VMWare
    Cisco CallManager
    System Configuration
    VoIP
    Ethical Hacking
    Cisco Certified Network Professional
    Cisco Certified Network Associate
    Cisco Router
    Cisco ASA
    VPN
  • $110 hourly

    • 5.0/5
    • (63 jobs)
    Experienced network engineer that has embraced the cloud and helped organizations large and small. I have done everything from establish VPNs to design global hybrid networks that utilize SD-WAN and direct connect. I have also designed multi-account AWS environments with least privilege cross account access via IAM users and SAML identity providers. I hold over 10 AWS certifications including Solutions Architect Professional, Advanced Networking Specialty, and Security Specialty. I am passionate about learning new things, expanding my existing knowledge, and sharing my knowledge to help others effectively utilize technology.
    Featured Skill Firewall
    Cisco Router
    Cloudflare
    Linux System Administration
    OpenVPN
    Amazon GuardDuty
    Oracle Cloud
    Bash Programming
    Amazon Web Services
    Python
    Cisco Meraki
    Network Engineering
    Ubiquiti
    Virtualization
    VPN
  • $45 hourly

    • 4.8/5
    • (13 jobs)
    I am a highly skilled and experienced Network Engineer with more than 10 years of experience in the industry. Although my experience cover several fields such as linux administration, VOIP, Webservers, Microsoft AD services, AWS. My specialization focus in Wired/Wireless Network architecture and security. I hold several prestige certificatons that prove my knowledge from different vendors including Meraki, Ubiquiti, Aruba, Ekahau, etc. I hold the presitgious CISCO CCIE certification focus in Wireless #60096 along with CCNA, and CCNP certifications. I have a proven track record in designing, implementing, and securing scalable wired and wireless networks. My expertise includes analyzing network requirements, designing topologies, developing project plans, and implementing solutions that meet business objectives.
    Featured Skill Firewall
    Cisco ISE
    OSPF
    Enhanced Interior Gateway Routing Protocol
    Wireless Network Implementation
    Cisco Certified Internetwork Expert
    Network Administration
    Cisco Meraki
    Virtual LAN
    Virtualization
    Network Design
    Network Security
    WiFi
  • $130 hourly

    • 5.0/5
    • (56 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 Firewall
    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
    Cisco ASA
    VPN
  • $120 hourly

    • 4.9/5
    • (34 jobs)
    Senior managed services expert with 20+ years of overall experience in IT and 15+ specifically in managed services. This experience bridges two areas: technical and internal operations. His technical experience focuses on leading senior technical work in all areas of SMB IT, with significant amounts of both project work and day-to-day technical support in addition to long-term IT strategy planning, account management, and consulting for MSP client base and MSPs in general. Technical experience is primarily but not only in Microsoft Windows Server and desktop operating systems, Active Directory and assorted common server roles, Office 365 and Exchange, Hyper-V and VMware virtualization, clustering and storage, Mimecast, Proofpoint and other email security platforms, identity management (SSO, MFA, SAML), the Azure platform, backup systems like Datto and Veeam, firewalls (SonicWALL, Sophos XTM and UTM plus some exposure to Fortigate and Palo Alto), Cisco and Cisco Meraki, Extreme Networking, Brocade, Ruckus, HP and Dell switching, Ubiquiti, and others. Chris also has significant experience and education in IT and information security in general. On the operational side, Chris's expertise includes comprehensive work in internal managed services operations, both building and expanding new and existing practices from start-ups to mature businesses. Specific areas of managed services experience aside from technical service delivery to clients includes, but is not limited to: service desk management and best practices, project management and scoping, team management and individual mentoring, reporting and dashboarding, data analytics, documentation and building or maintaining documentation repositories like IT Glue, process building and efficiency-focused strategic problem solving, internal toolset systems building and deployment, PSA/ticketing and RMMs of several vendors, and various security and management tools of many types and flavors. Chris has significant experience with EOS, Connectwise Manage and Autotask PSAs, Kaseya and Automate RMMs, Brightgauge, the entire Sophos Central product line, Auvik, Liongard, Perch, Carbon Black, Cisco Umbrella, and API integrations between all of these tools and others.
    Featured Skill Firewall
    ConnectWise Automate
    Documentation
    Process Improvement
    Windows Server
    SonicWall
    Office 365
    Ticketing System
    Help Desk Software
    VMware ESX Server
    Microsoft Teams
    Microsoft Hyper-V Server
    Managed Services
    Sophos Sophos UTM
  • $175 hourly

    • 5.0/5
    • (22 jobs)
    I'm an experienced IT professional with over 12 years experience, I've with clients in various industries and have successfully transitioned companies of all sizes from on-prem infrastructure to cloud platforms. Some of the projects I've completed include. Some of my Azure, M365, and on-premises technology skills: • Microsoft 365 • Azure Active Directory • Azure Active Directory Domain Services • Active Directory Domain Services • Azure Virtual Desktop • Azure Storage • Azure virtual machines • Azure app services • Azure SQL • Azure SQL managed instance • Azure recovery services • ADFS • Microsoft Sentinel • Microsoft conditional access • AAD SSO • Google Workspace • Windows servers and workstations • Linux servers • PowerShell • Bash • Batch • JSON • Anti-malware and EDR platforms (Webroot, Bitdefender, Symantec, Kaspersky, Microsoft, SentinelOne) • Spam protection services (Proofpoint, Mimecast, Barracuda, Microsoft ATP) • WordPress • DNS • Sendgrid • Microsoft SQL • Vulnerability assessment • Operating systems hardening • Centralized patching • Firewalls • Managed Switches • Wireless Networking Certificates: Microsoft 365 Certified: Security Administrator Associate Microsoft 365 Certified: Enterprise Administrator Expert Microsoft Certified: Azure Solutions Architect Expert
    Featured Skill Firewall
    Backup & Migration
    GPO
    Disaster Recovery
    Microsoft Azure SQL Database
    Azure App Service
    Cloud Migration
    Network Architecture
    Network Administration
    Microsoft Exchange Server
    DHCP
    Microsoft Active Directory
  • $150 hourly

    • 4.9/5
    • (73 jobs)
    🏆🥇✨Proven track record of delivering top-notch IT solutions ✨🥇🏆 - I specialize in networking, cybersecurity and virtualization including Citrix, VMware, and Microsoft technologies. My expertise spans Unifi, Meraki and Cisco in networking, SonicWall, Palo Alto and FortiNet in security as well as VMware, XenServer and Hyper-V virtualization. I've consistently achieved high client satisfaction through my dedication to excellence and attention to detail. **Key Skills:** 👉 Virtual Machine Management: Proficient in template automation, Citrix MCS, PVS, and Citrix AppLayering for efficient virtual machine deployment and management. 👉 User Experience Optimization: Skilled in enhancing user experience with Citrix WEM, Citrix UPM, Profile Unity, and AppSense solutions. 👉 Wireless Deployments: Experienced in deploying wireless solutions from Meraki, Ubiquiti, and Cisco for seamless connectivity. 👉 Network Security: Expertise in implementing and managing network security firewalls from Meraki, Ubiquiti, SonicWall, Cisco, and Palo Alto to ensure robust protection. 👉 Storage Area Network (SAN) Deployment: Knowledgeable in SAN deployment utilizing Pure Storage and Dell/EMC solutions for reliable data storage. 👉 Exchange Connectivity: Proficient in troubleshooting Exchange connectivity issues and optimizing mail flow for uninterrupted communication. 👉 Windows Patch Management: Skilled in deploying Windows patches using WSUS and Ivanti Patch for enhanced system security and performance. 👉 Microsoft Distributed File Services (DFSr) Deployments: Experienced in deploying DFSr solutions for efficient file replication and management. **Why Choose Me:** ✅ Proven Track Record: With a long history of successful client engagements, I have built a reputation for delivering exceptional IT solutions. ✅ Client Satisfaction: My focus on client satisfaction drives me to go above and beyond to meet project requirements and exceed expectations. ✅ Technical Expertise: I stay updated with the latest advancements in Citrix, VMware, and Microsoft technologies to provide cutting-edge solutions. ✅ Attention to Detail: I pay meticulous attention to detail in every project, ensuring accuracy and efficiency in implementation. ✅ Collaborative Approach: I believe in transparent communication and collaboration, working closely with clients to understand their needs and deliver tailored solutions. **Let's Connect:** 🥇 Ready to elevate your IT infrastructure? Reach out to discuss how I can help you achieve your goals efficiently and effectively.
    Featured Skill Firewall
    Email Deliverability
    Hosting Setup
    Ubiquiti
    Duo Security
    Storage Area Network
    Server Virtualization
    VMWare
    Cisco Meraki
    Citrix
    Citrix ADC
    Microsoft Active Directory
    Network Administration
    Web Hosting
    Network Security
  • $65 hourly

    • 5.0/5
    • (6 jobs)
    As an IT professional with over two decades of experience in support, administration, and troubleshooting, I bring a wealth of knowledge and expertise to any organization. I am proficient in providing comprehensive support for businesses of all sizes, from small startups to large corporations, and have a proven ability to meet the technology needs of corporate executives. My exceptional customer service skills allow me to effectively communicate technical issues in clear, concise language that is easily understood by clients. I strive to consistently exceed expectations and build long-lasting relationships with my clients. I have extensive experience working with various technologies, including Windows Server 2008/2012/2016/2019, VMware, Citrix XenApp/XenDesktop/Receiver, VisionApp, Hyper-V, Exchange, Active Directory, Office365, and Azure. Certifications Microsoft IT Support Specialist by Microsoft on Coursera. September 2024 Microsoft Azure Security Engineer Associate by Microsoft on Coursera. September 2024
    Featured Skill Firewall
    Customer Support
    Incident Management
    Load Balancing
    Server
    Cloud Computing
    Intrusion Detection System
    Data Backup
    Cisco Router
    Network Administration
    System Administration
    Microsoft Active Directory
    Microsoft Azure
    Office 365
    Microsoft Exchange Server
  • $80 hourly

    • 5.0/5
    • (25 jobs)
    Hello! I'm Spencer Bevan, a Top Rated IT Professional with extensive expertise in systems, network, and security administration. Armed with a degree in Information Technology and various professional certifications, I bring a wealth of hands-on experience to solve complex technical challenges. My commitment is to provide prompt and efficient solutions, available at a moment's notice, day or night. I offer a comprehensive range of 𝗲𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 including, but not limited to: 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • Vendor Proficiency: Skilled in managing networks using UniFi, pfSense, MikroTik, Cisco. • Wireless Solutions: Expert in deploying and troubleshooting wireless networks, including custom splash pages and captive portals for user authentication. • VPN Connectivity: Advanced setup of VPN for both remote access and site-to-site connections, ensuring secure and reliable links. 𝗗𝗲𝘀𝗸𝘁𝗼𝗽 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • Operating Systems: Broad experience across Windows, Mac OS, Ubuntu, and other Linux distributions. • Virtual Desktops: Proficient in virtual desktop infrastructure using VMware Horizon, enhancing remote access and management. 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • Database Management: Deep knowledge in MySQL, MS SQL Server, MariaDB, PostgreSQL. • Cloud Databases: Familiar with cloud solutions like Google Cloud SQL and AWS RDS, ensuring scalability and flexibility. 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • VMware and Hyper-V: Extensive experience with VMware ESXi, VMware vCenter, and Hyper-V, managing robust virtual environments. • Docker: Install, configure, and manage docker deployments locally or at scale with Kubernetes. 𝗘𝗺𝗮𝗶𝗹 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • Email Security: Setup and management of SPF, DKIM, and DMARC to protect against spam and phishing. • Troubleshooting: Expert in diagnosing and resolving email deliverability issues. • Email Migration: Seamless transition of email platforms with minimal disruption, experienced with Google Workspace and Office 365. 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗖𝗮𝗺𝗲𝗿𝗮 𝗮𝗻𝗱 𝗩𝗠𝗦 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 • System Setup and Maintenance: Install, configure, and maintain security camera systems and video management systems, ensuring comprehensive coverage and data integrity. • Integration and Support: Integrate VMS with existing IT infrastructures, providing ongoing support and upgrades. With a passion for technology and a keen eye for detail, I ensure that all systems are not only up to running but are optimized for future scalability and security challenges. Whether you need immediate troubleshooting or long-term IT management, I am here to assist. Let's connect to discuss how I can bring your IT operations to the next level!
    Featured Skill Firewall
    System Administration
    SQL
    Automation
    Managed Services
    Network Architecture
    Bash
    Amazon Web Services
    Network Administration
    Google Cloud Platform
    Python
    Server Administration
    Docker Compose
    Linux
    Desktop & Laptop Support
  • $60 hourly

    • 5.0/5
    • (56 jobs)
    Do you need assistance with Office 365 or assistance solving issues with your Windows Server, IIS Server, Active Directory, Exchange Server or SQL Server? What are you looking to achieve? Let’s explore the tools and options available and choose the best solution to solve your issue and achieve your goal. Hi There, I am a System Administrator with over 25 years of demonstrated experience in a wide array of technologies. I’ve spent the last 23 years working for the City of Berkeley, California as a member of a small team of administrators managing and supporting the network infrastructure including Network switches and routers, Windows Servers and Active Directory, Exchange Servers, SQL Servers, Office 365 and more. In my role with the City, I lead the project to implement our office 365 subscription. As part of that project, I migrated 2000+ mailboxes to exchange online, migrated personal file shares to OneDrive using the SharePoint Migration tools, rolled out Microsoft Teams to the environment, and implemented InTune to manage our inventory of 700+ iOS Mobile Devices to list a few highlights. The highlights of Skills: ◼ Windows Server Administration ◼ Active Directory Administration ◼ Azure Active Directory Administration ◼ Azure Active Directory B2C Administration ◼ IIS Server Administration ◼ Linux Server Administration ◼ Installation of Operating Systems ◼ Network Administration ◼ SQL Server Administration ◼ Microsoft Exchange Server Administration ◼ Microsoft/Office 365 Administration ◼ InTune Administration ◼ Google Workspace/G-Suite Administration ◼ System Center Configuration Manager Administration ◼ Citrix Virtual App Administration ◼ Citrix ADC Administration ◼ Windows Remote Desktop Services/Terminal Services Administration ◼ Using FSLogix with Remote Desktop Services as well as Citrix Virtual App ◼ Fortinet Fortigate Firewall management ◼ pfSense Firewall management ◼ Fortinet Fortiweb Web Application Firewall (WAF) management ◼ Virtualization Infrastructure administration on VMWare, Hyper-V, and Nutanix Acropolis Hypervisor ◼ Configuration and administration of Ubiquiti Access Points, Switches, Controller Software ◼ Managed Avaya Aura Voice Over IP PBX System. ◼ Ansible and AWX/Ansible Tower for automation. ◼ n8n for automation. ◼ Zabbix installation and administration to monitor network endpoints and services ◼ Netbox to maintain network inventory When you work with me you will get fast response, clear communication, and fast turnaround on most projects. If any of this sounds like what you need, contact me!
    Featured Skill Firewall
    Transact-SQL
    C#
    ASP.NET
    Microsoft SQL Server
    Microsoft Exchange Online
    Microsoft IIS
    Microsoft SQL Server Administration
    Microsoft Active Directory
    VMware vSphere
    Microsoft Hyper-V Server
    Office 365
    Windows Administration
    Network Administration
    Linux
  • $90 hourly

    • 5.0/5
    • (39 jobs)
    Senior Network Engineer, over 10 years experience in IT networks. Telecom, routing, switching, wireless, VOIP, VPN, firewalls, cabling, LAN/WAN. video surveillance, Cisco, Meraki, Ubiquiti, Netgear, SonicWall, HP and more. Cisco Routers, ISR 1900,2900.3900, 4300,4400, Voice Gateways, VG224, VG310, VG320,VG350, VG450. Voice, CSU/DSU, PRI, SIP. PSTN, POTS, analog lines. Cisco Wireless LAN Controllers ( WLC ) 9800, 5760, 5520, 5508, 4402, 2504. Access Points indoor,outdoor, CAPWAP, LWAPP, autonomous, mobility express, mesh and repeaters. IP Phones VOIP IP Phones Telecom Firewall ASA Network Security AnyConnect Cisco Unified Communications Call Manager, CUCM Collaboration Cisco Unity Connection, CUC CME Cisco Unity Express, CUE Power over Ethernet , POE , Network cabling Cisco Catalyst switches, 2960X, 9200, 9300, 3650, 3850,3750, 4506, 4510, 4500X Meraki Switches ,firewalls, Access Points and Cameras.
    Featured Skill Firewall
    Wireless Network Implementation
    VoIP Administration
    Cisco Certified Network Professional
    Network Video Recorder
    Virtual LAN
    Wireless Communication
    Network Administration
    Network Design
    Cisco Meraki
    Network Engineering
    Structured Cabling
    Cisco Certified Network Associate
    VPN
    Network Security
  • $50 hourly

    • 5.0/5
    • (3 jobs)
    Experienced & certified Sr Cloud Architect and engineer with over 14 years of expertise in on-prem and public cloud Infrastructure. Certified in Azure and AWS technology, with focus on building highly secure, resilient, and cost-effective solutions. Process oriented individual capable of working in high stress situation and managing critical projects.  Deployed, migrated and managed over 500+ virtual machines, storages, and network systems worldwide including four Azure regions and AWS.  Migrated 5+ full sites, 100+TB Data, 100+DB, 100+VMs to Azure using Migrate, Vnet, VM, storage account, site recovery, Azure SQL, Monitor, Defender, Policy, key vault, app services, functions, app services, Application Gateway, VPN, Firewall and many more services into five different regions.  Deep understanding of Iaas, SaaS, PaaS, DRaaS and designed cost effective yet highly secure and high performance cloud solutions.  Strong knowledge of ARM templates and automation using Powershell & Terraform and Azure CLI scripting.  Designed Azure & private cloud architecture across 5 regions and 5 data centers focusing on high availability, security, budget, redundancy, DR/BCP and compliance.  Deployed hybrid Microsoft 365 and its core Office Products, Exchange, SharePoint & Teams as well implemented data loss prevention policy, data lifecycle & data classification under Purview.  Implemented Azure AD, AD Connect, identity governance, identity security, conditional access, identity protection, access review, MFA, PIM, license and enterprise apps.  Created and managed DNS, Domain, Active Directory (Azure and On-Prem), Group Policy Objects, DHCP, Groups, SSL certificate, load balancer and exchange server 2019.  Configured on-prem & Azure firewall, web application firewall, load balancer for web applications.  Planned and executed organization’s disaster recovery plan to failover core client systems to cloud and remote datacenter for business continuity using Azure site recovery and Zerto.  Oversaw deployment of mobile device management program to control and protect organizations data over cellphones, laptops. Configured compliance policy, configuration policy along with conditional access polices and mobile application management policy.  Enforced and supervise organizations advanced threat protection systems, data loss prevention solutions using Microsoft 365 defender for endpoint & Defender for cloud for Azure services.  Configured SCCM with many global distribution points for security patch, application and OS deployment and defender patch using ADR for 2000+ systems.  Primary architect for deploying, maintaining enterprise class security, network and systems for enterprise application and solutions to Azure and AWS. PROFESSIONAL CERTIFICATES Microsoft Certified: Azure Solutions Architect Expert Microsoft Certified: Azure Security Engineer Associate Microsoft Certified: Azure Administrator Associate AWS Certified Solutions Architect Associate AWS Certified SysOps Administrator – Associate Microsoft Certified: Identity and Access Administrator Associate Microsoft Certified: Azure Fundamentals
    Featured Skill Firewall
    Microsoft Endpoint Manager
    Microsoft Azure
    Office 365
    Microsoft Active Directory
    Amazon Web Services
    System Administration
    Microsoft SCCM
    ISO 27001
    Microsoft Hyper-V Server
    Windows Administration
    IT Infrastructure
    Cloud Computing
    Cloud Architecture
    Information Security
  • $35 hourly

    • 4.9/5
    • (14 jobs)
    My name is Brent and I have over two and a half decades of progressive IT experience in all realms of Information Technology and related fields. I have held positions ranging from a help desk professional, to IT manager and CIO of medium sized businesses. I’ve managed teams and groups, coordinated large projects with many vendors and moving pieces with million-dollar budgets, and planned and implemented countless small to very large projects. Some of my skills include: Advanced Networking including advanced routing, cabling, 802.1x, 802.1ad, wireless, VLANs, and more Firewall and intrusion prevention across multiple brands including Sophos, WatchGuard, SonicWall, Fortinet, Juniper, and others Security and network hardening experience including RBAC, NAT and port protection, PKI infrastructure and certificates, and more Physical security, access control, and cameras system design, setup, and management Microsoft Active Directory Domains including DNS, group policy, RDP (Remote Desktop), and all other Microsoft Server features Expert in management of Microsoft software packages including SQL, Exchange, Office 365, and more including database management Experience designing failover and load balancing systems at the software (SQL, Exchange, many others) and hardware levels (VMWare, Raid, SAN, Datacenter, etc) SAN and storage products from many vendors including iSCSI and Fibre Channel Virtualization infrastructures including VMware, Hyper-V, and more Programming skills in several languages, and vast scripting experience in PowerShell, scripting (Powershell, VBScript), and others Vast experience with Server and Storage hardware from Dell, HP, Cisco, Nimble, NetApp, Pure Storage, EMC, Synology, and more Advanced operating knowledge of operating systems including Microsoft Server, Windows, and Mac OS Experience with VOIP from many different vendors including Cisco, Mitel, and old PBX systems Experience designing and operating data centers including layout, power design, and cooling management Experience managing and implementing cloud solutions from AWS, Azure, and more Vendor and Contract Management including contract renegotiations, licensing, and large project management Some of my certifications include: Cisco: CCNA, CCNP CompTIA: A+ Microsoft: MCP, MCSA, MCSE 2003, MCPS, MCNPS, MSBS, MCTS:Vista, MCTS: Windows Server 2008 Active Directory, MCTS: Windows Server 2008 Network Infrastructure, MCTS: Windows Server 2008 Application Platform, MCTS: Exchange Server 2010 Configuration, MCITP: Server Administrator 2008, MCITP: Enterprise Administrator 2008, MCITP: Exchange Messaging Administrator 2010 VMWare: VSP 4.1, VTSP 4.1, VCP 4.1/5.0/5.5, Exchange on VMware Accreditation Citrix: CCA XenApp 6, CCA Netscaler, CCA Access Gateway
    Featured Skill Firewall
    IT Management
    Backup & Migration
    Network Engineering
    Load Balancing
    Data Recovery
    Network Administration
    Storage Area Network
    Disaster Recovery
    Data Center
    Windows Server
    System Administration
    Microsoft Active Directory
    Citrix Virtual Apps & Desktops
    Microsoft IIS
  • $75 hourly

    • 5.0/5
    • (25 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 Firewall
    Cisco ASA
    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
  • $45 hourly

    • 5.0/5
    • (214 jobs)
    Hello, my name is Chris O'Rorke and I am a Microsoft Certified Systems Engineer with over 25 years of experience supporting Windows desktops and servers. I have over 10 years of experience with Cloudflare and am currently an enterprise-level customer with 20 domains and access to 24/7 emergency support. I also manage the configuration and monitoring of 60 clients under my Cloudflare account. I have in-depth knowledge of configuring and troubleshooting DNS (including MX/SPF/DMARC/DKIM/BIMI for email deliverability), WAF, caching and more. I have experience with multiple email services such as Mailgun, Mailjet, SendGrid, Postmark, Campaigner, Klaviyo, Amazon SES and more. I have a Folderly account that I use for generating email deliverability reports along with recommendations on how to stay out of the SPAM folder. I am a partner with Warmy for warming up new addresses or domains. I utilize DMARCian to examine and troubleshoot DMARC issues. Feel free to reach out for additional background info or questions and I appreciate your consideration!
    Featured Skill Firewall
    SendGrid
    WordPress
    Microsoft Outlook
    Klaviyo
    Email Campaign Optimization
    Email Campaign Setup
    Email Deliverability
    DNS
    Cloudflare
    Computer
    Computer Network
    Computer Maintenance
    Microsoft Windows
    System Administration
  • $70 hourly

    • 4.9/5
    • (202 jobs)
    Hi! My name’s Jonathan and I’m a network and systems engineer. Throughout the past 7+ years, I've been both "Mr. Fix It" and "Mr. Build It" in IT, cloud, security, and network administration for healthcare practices, law firms, government contractors, non-profits, media agencies, IT service providers, and dozens of small businesses all over the country. My technical approach is analytical and systematic, but also efficient. During an active contract, I'm happy to work with you live over Zoom, phone, email, messages, whatever works for you! My professional experience includes (but is not limited to): - Managing/fixing/setting up domain DNS, web servers, email servers, and related components - Administrating all parts of Microsoft 365 & Windows including SharePoint, OneDrive, and Active Directory. - Administrating and implementing corporate IT security to align with strict data security standards (e.g., HIPAA, ISO 27001, and SOC2) - Design, configuration, and supervision of tailored corporate networks, VPNs, access controls, firewalls, servers, and hybrid cloud connects. I am familiar with most of the major manufacturers of networking equipment. - Engineering purpose-built cloud architectures for a variety of enterprise use cases on AWS and Azure (I can also set up Site-to-Site tunneling to/from networks based on AWS, Azure, and on-premises)
    Featured Skill Firewall
    AWS Development
    Extreme Networks
    Troubleshooting
    Virtualization
    Data Backup
    Technical Project Management
    VPN
    SSL
    DNS
    Office 365
    Windows Server
    Virtual Desktop Infrastructure
    Network Engineering
    SQL
  • $75 hourly

    • 5.0/5
    • (8 jobs)
    Experienced technology leader and cyber security expert. Experience building security programs from the ground up for large organizations, conducting security audits, technical policy writing, and gap analysis. I am efficient, driven, and highly capable in all areas of cybersecurity. I hold both a Masters degree (MBA) as well as a Bachelor of Science in Business, IT Management. Additionally, I have received certifications which include: CISSP, CISA, CISM, GSLC, CCNA, CCNA-S, and certifications from Microsoft and CompTIA.
    Featured Skill Firewall
    Technical Writing
    IT Consultation
    System Configuration
    Troubleshooting
    System Administration
    Information Security
    Security Engineering
    System Security
    IT Management
    IT Compliance Audit
    Network Engineering
    Network Security
  • $106 hourly

    • 5.0/5
    • (6 jobs)
    As a multi-lingual Network Engineer with 20+ years in Fortune 100 companies, I specialize in crafting resilient, high-performance network infrastructures for complex Cisco, Meraki, Fortinet, and Ubiquiti systems. Here's what I bring to your project: - Strategic Planning & Implementation: Proven track record in delivering strategies that fortify networks and streamline operations for manufacturing plants, data centers, and campus environments. - Technical Proficiencies: Deep knowledge of Router/Switch, Security, WiFi, and Data Center networks across Cisco, Fortigate, Meraki, and Ubiquiti technologies. - Project Lifecycle: Expertise in guiding projects from the initial proof of concept and feasibility analysis through to design, delivery, and enhancement. - Cost-effective Solutions: Adept at designing and implementing solutions that balance performance with budgetary concerns, driving down costs without compromising security or functionality. - Team Leadership: History of leading diverse engineering teams to surpass objectives in a culturally and technically varied workplace.
    Featured Skill Firewall
    VPN
    Multiprotocol BGP
    OSPF
    Local Area Network
    Wide Area Network
    Network Architecture
    Cisco Router
    Cisco Meraki
    Cisco WLC
    Virtual LAN
    Network Design
    Network Engineering
    Ubiquiti
    Fortinet
  • $200 hourly

    • 5.0/5
    • (50 jobs)
    Network & Linux web server security systems specialist Proactive, IT professional with success directing a broad range of corporate IT initiatives while participating in planning, analysis, and implementation of solutions supporting strategic business goals. Specializing in design, implementation, and break-fix of secure networks and systems; emphasizing on security, availability, and serviceability
    Featured Skill Firewall
    Scripting
    Web Application Firewall
    LEMP Stack
    Systems Development
    Embedded Linux
    Linux System Administration
    DevOps
    WordPress
    cPanel
    LAMP Administration
    Linux
    Amazon Web Services
    CentOS
  • $95 hourly

    • 4.6/5
    • (339 jobs)
    I have 15+ years experience and I will save you time & money with my meticulous work & advice for going forward. I've worked for individuals, businesses, startups and 501(c)(3) non-profits. Skills and experience include: • All aspects of WordPress, including PHP, jQuery, HTML and CSS, Genesis and custom themes, Bootstrap CSS and Javascript, and custom fields and functions. • WooCommerce and Stripe, PayPal and other payment systems. • Cloudflare: security, DNS, WAF rules and SSL configurations. • Advanced Custom Fields (ACF) for custom themes and content input. • Site and server speed optimizations using GTMetrix and Google's PageSpeed as benchmarking tools. • SPF, DKIM and DMARC record configurations to ensure email deliverability for email providers such as Google Workspace and Office 365. • Domain verification and DNS records for third-party email services such as Constant Contact, MailChimp, Hubspot, AWeber, Market, Klaviyo, Keap/Infusionsoft and more. • Setup and configurations for SMTP services such MailGun, Mandrill, SendGrid and more. • Technical SEO: Yoast and All in One SEO, XML sitemaps and the Google Search Console and Analytics. • Linux server administration (Ubuntu, AlmaLinux, Debian): Apache Nginx Litespeed, MySQL/MariaDB, PHP configurations, security and performance, Let's Encrypt SSLs. • Paid Memberships Pro setup and customizations. • Web hosts: WP Engine, Linode, Cloudways, Digital Ocean, Liquid Web, Kinsta, Pantheon (git), Flywheel, Pressidium and Amazon AWS. • Migrations from Joomla, ExpressionEngine, Drupal, phpBB, Hubspot, TypePad, Movable Type, Blogger, Wild Apricot, and migrations from "plain" PHP & MySQL sites. • Mastodon server setup, configurations and scalability. Stack Overflow profile: stackoverflow.com/users/85385/markratledge WordPress Development profile: wordpress.stackexchange.com/users/268/markratledge
    Featured Skill Firewall
    HTML5
    Database Optimization
    PHP
    Cloudflare
    WordPress
    Internet Security
    Theme Customization
    WooCommerce
    Linux System Administration
    MySQL
    Page Speed Optimization
    Ubuntu
    Linux
  • $83 hourly

    • 5.0/5
    • (2 jobs)
    Over the last 30 years, I have acquired extensive knowledge of system administration, network design/implementation, and Microsoft cloud offerings. Expert knowledge in network analysis, implementation, optimization, troubleshooting, and documentation. Microsoft certifications from Windows NT 4.0 through Azure Administrator (AZ-104) along with many years of hands-on technical knowledge encompassing a wide range of network hardware and software. Microsoft Windows Server (NT 4.0 - Server 2022) Windows workstations (Windows 3.1 - Windows 11) Exchange Server (4.0 - 2016) SQL Server (7.0 - 2022) Active Directory (Server 2000 - Server 2022) Cloud Microsoft Office 365 Microsoft Azure Microsoft Intune Microsoft Defender Linux RedHat Fedora CentOS Network DNS DHCP Switches Routers Firewalls
    Featured Skill Firewall
    Windows NT
    Windows 11 Administration
    Windows 10 Administration
    Cisco Meraki
    Ubiquiti
    Scripting
    Network Planning
    Microsoft Hyper-V Server
    Windows Server
    Office 365
    Microsoft Active Directory
    Microsoft Windows PowerShell
    Microsoft IIS
    Microsoft Azure
  • $150 hourly

    • 4.9/5
    • (20 jobs)
    As an experienced Azure and Microsoft 365 security professional, I specialize in cloud security, compliance, and identity & access management. With expertise in technologies such as Exchange Online, Teams, Defender, Purview, and Entra Azure AD, I have developed a deep understanding of the latest cloud security and identity best practices. I am passionate about helping businesses leverage the power of the cloud to achieve their goals while ensuring the highest levels of security and identity protection. With over 10 years of experience in the industry, I have a proven track record of designing, implementing, and managing secure cloud environments, managing identity and access controls, and ensuring compliance with industry standards. I have a keen eye for identifying vulnerabilities and implementing measures to mitigate risks. My goal is to help clients optimize their cloud infrastructure while providing the highest levels of security and identity protection. If you are looking for a reliable and knowledgeable Azure and Microsoft 365 security and identity expert, let's collaborate to unlock the full potential of your cloud infrastructure.
    Featured Skill Firewall
    Information Security Consultation
    Office 365
    Microsoft Azure Administration
    Email
    DNS
    Security Management
    Information Security
    Microsoft Exchange Online
    Microsoft Azure
    Cloud Security
    Security Analysis
    Information Security Governance
    Microsoft Active Directory
    Solution Architecture Consultation
  • $95 hourly

    • 5.0/5
    • (5 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 Firewall
    NIST Cybersecurity Framework
    Microsoft SCCM
    Windows Administration
    NIST SP 800-53
    Linux System Administration
    Security Analysis
    Cybersecurity Management
    Cisco ASA
    Splunk
    VMware ESX Server
    Magento 2
    Network Administration
    Network Design
  • $100 hourly

    • 4.9/5
    • (54 jobs)
    I’m a highly accomplished Network Engineer and Information Security Specialist with over 15 years of experience managing networks and security stacks for small, mid-sized, enterprise organizations and MSP’s. I have a strong track record of planning, implementing, and improving network infrastructures and controls to meet evolving operational and security demands. With a commitment to professionalism, technical expertise, and a passion for network engineering and information security, I bring valuable skills to any organization looking to strengthen and secure its critical infrastructure
    Featured Skill Firewall
    PfSense
    Network Engineering
    Zero Trust Architecture
    Router
    Network Security
    Cisco
    Aruba
    UniFi
    Cloudflare
    Ubiquiti
    DNS
    OpenVPN
    WiFi
    VPN
  • $25 hourly

    • 5.0/5
    • (2 jobs)
    Hi, I’m a professional web developer and IT specialist with over 3 years of experience in creating and deploying websites. I can design and build responsive, user-friendly, and secure websites that meet your business needs and goals. I’m also proficient in coding and open AI, the artificial intelligence research company that aims to create and promote friendly AI. I have worked on various projects involving natural language processing, computer vision, generative models, and reinforcement learning. I can help you leverage the power of open AI to create innovative and intelligent solutions for your problems. Additionally, I have a strong background in information technology and cyber security. I have knowledge and skills in network administration, system administration, data analysis, cloud computing, and ethical hacking. I can help you protect your data and systems from cyber threats and ensure compliance with security standards and best practices. I’m passionate about learning new technologies and staying updated with the latest trends and developments in the web and IT industry. I’m always eager to take on new challenges and deliver high-quality results within deadlines and budgets. I have excellent communication and collaboration skills and can work effectively with clients and teams across different time zones and cultures. If you are looking for a reliable, skilled, and creative web developer and IT specialist who can handle your projects with professionalism and excellence, then look no further. I’m the right person for the job. Contact me today and let’s discuss how I can help you achieve your goals. Thank you for your consideration.
    Featured Skill Firewall
    Website
    SEO Setup & Configuration
    Firebase
    SQL
    C++
    Azure OpenAI Service
    Network Penetration Testing
    Penetration Testing
    Information Technology
    DevOps
    Linux
    Java
    Python
    Microsoft Azure
  • $50 hourly

    • 5.0/5
    • (14 jobs)
    Hello, my name is James Burris. I have been in the computer industry since the days of Windows NT 3.5. I am familiar with all versions of Windows server and client. I am also well versed in Mac OS. I use both Windows and Mac OS daily. I have configured and supported networks from 5 PCs and users to networks spanning the US with over 3500 users and PCs and hundreds of servers. I use and support Sophos Intercept X and Sentinel One on a daily basis. I setup, manage and support Microsoft 365 environments for tenants of all sizes including Azure AD and Intune. I also manage and support Azure VM environments. I support spam and phishing in Microsoft 365 using Defender using policies and Exchange transport rules. I manage and support SonicWall, Sophos, Meraki, and Juniper security appliances. My last project included setting up Intune to deploy new laptops to a corporation in a hardware refresh making deployment hands free by shipping hardware directly to the users and letting Intune register the PC and deploy the apps for the business. I manage Azure Conditional access, only allowing company PCs connect to Microsoft 365 applications.
    Featured Skill Firewall
    Juniper
    Internet Protocol Security
    Microsoft Endpoint Manager
    Microsoft Azure
    Microsoft Hyper-V Server
    Office 365
    Windows Administration
    Sophos Sophos UTM
    Mac OS X Administration
    Technical Support
    Microsoft Server
    Microsoft Active Directory
    VPN
  • $72 hourly

    • 4.9/5
    • (74 jobs)
    I have a wide knowledge of supporting and implementing technology. I have a background in Security, working in Military Intelligence. I have multiple certifications in networking and security. I consider myself a jack-of-all-trades and learn new technologies very fast. I currently work for a Manged Service Provider, I work with small business everyday, and support all levels of their IT needs. Some of my experience and knowledge include Software, Hardware, Servers, Workstations, Windows, Mac, Networking, Security, Firewalls, Virus removal, data backup and data recovery, printers, Email, cloud technologies, Microsoft Office, Office 365, Google Gsuite. I have a very good broad knowledge of everything IT, so even if it isn't something I do everyday, I have the ability to figure it out.
    Featured Skill Firewall
    Server
    Email Support
    Network Administration
    Microsoft Windows
    Office 365
    Hardware Troubleshooting
    Virus Removal
    System Administration
    Disaster Recovery
    Google Workspace Administration
    macOS
    Cloud Computing
    Network Security
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