Hire the best Network Engineers
Check out Network Engineers with the skills you need for your next job.
- $50 hourly
- 5.0/5
- (16 jobs)
I am a seasoned Network Engineer with 5 years of experience and CCNP certification, specializing in LAN, WLAN, SAN, and VPN setups. I possess expertise in automation, scripting, Python monitoring, and packet capture for efficient network management. With a keen interest in AI, blockchain, and quantum physics, I bring a fresh perspective to my work. Let me be your guide to seamlessly design, configure, and troubleshoot your network infrastructure, empowering your business with reliable and secure connectivity.Network Engineering
VirtualizationVirtual LANVPNCisco Certified Network ProfessionalPalo Alto FirewallsWireless Network ImplementationLinuxCisco RouterIPv6Computer NetworkNetwork DesignNetwork AdministrationNetwork SecurityPython Script - $100 hourly
- 5.0/5
- (5 jobs)
I'm a network engineer with experience in building and maintaining networks for both small businesses and large enterprises. Whether you've got a one-time project or the need for continuous work - I'm happy to help!Network Engineering
AnsibleCiscoVMware AdministrationVPNFortinetNetwork DesignNetwork SecurityFortiGate FirewallNetwork PlanningLinux System AdministrationNetwork AdministrationSonicWallNetwork MonitoringSystem Administration - $60 hourly
- 4.9/5
- (27 jobs)
HIGHLIGHTS OF QUALIFICATIONS Experienced software engineering professional with a proven record of success in software design, development, and integration. Consistently recognized by management and peers for designing, coding, testing and installing high-quality software applications. Successfully apply new technologies and techniques to improve existing systems and processes. Strong project leadership, planning, and communication skills. Strong Quality Assurance background. Languages: C++, C#, Visual Basic, Python, QT, Perl, HTML, COBOL Databases: Microsoft SQL Server, Microsoft Access Tools: SQL Server Management Studio, Git, Gerrit, JIRA, Microsoft Visual SourceSafe, Borland StarTeam Methodologies: Agile, Scrum Hardware/Platforms: Raspberry Pi, ESP32, FreeRTOS, Android, IoT, MQTT, ArduinoNetwork Engineering
Software QAEmail SupportSensorArduinoTechnical SupportMicrosoft SQL Server ProgrammingMicrosoft Visual C++CTechnical WritingC++Python - $76 hourly
- 5.0/5
- (19 jobs)
Meraki Certified Network Operator and Firewall Network engineer, I have many years setting up and configuring, VPN, SD-WAN and remote locations Meraki and Cisco Switches and networking. Fortinet Firewall setup and config with remote locations and firewall filtering. User VPN setup and configure. Firewall rules and filtering. Nimble SAN Storage server setup and config with VMWare Esxi 5.0-6.7 setup and config with ISCSI connectivity for system storage profiles. Switches, Cisco Aeronet, Meraki, Ubiquiti and Motorola wireless, Nuuo video monitoring and LifeSize video conferencing. Troubleshoot TCP/IP, DNS, WINS, DHCP and VPN. Support and maintain computing services including Windows Hyper-V and IBM iSeries and System X servers, VMWARE Esxi 5.5-6.5. Server, 2003-2019 Citrix XenApps, and Windows environment. Troubleshoot EDI transactions in Data Masons Vantage Point and Liaison AS2. Administer Office 365 mail and apps.Network Engineering
Citrix HypervisorMikroTik RouterOSOpenWrtVMware ESX ServerVMware vSphereSecurity InfrastructurePfSenseAvayaInternet Protocol SecurityJuniperNetwork EquipmentmacOSCisco MerakiVPN - $75 hourly
- 4.9/5
- (213 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 hundreds 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)Network Engineering
AWS DevelopmentFirewallExtreme NetworksTroubleshootingVirtualizationData BackupTechnical Project ManagementVPNSSLDNSOffice 365Windows ServerVirtual Desktop InfrastructureSQL - $30 hourly
- 5.0/5
- (31 jobs)
Extensive experience in the following Roles, IT Support Engineer, System Engineer, Service Desk, Technical Support, and Customer Service at various levels and areas of responsibilities. Work experiences consist of Troubleshooting different Devices and Computers, Active Directory, Office 365 Administration, MS Exchange, FTP/sFTP, Manage Clients Network, Provision, and Setup VOIP Phone System, Giving Product Information and Product Support for Customers, Provide Technical Assistance and Customer Service through Phones, Chats, and Emails. Certificate: ITIL Foundation ver.3Network Engineering
Google Workspace AdministrationVPNTechnical SupportTechnical Documentation ManagementCustomer ServiceProcedure DevelopmentTicketing SystemNetwork AdministrationDesktop SupportHelpdeskMicrosoft Active DirectorySystem AdministrationWindows Server - $40 hourly
- 5.0/5
- (78 jobs)
Expert Network & Systems Engineering: VPN solutions, OpenWRT firmware customization, containerization with Docker/Kubernetes, thorough network monitoring, and resilience. Experience: Specialized in elevating server and network infrastructures, my VPN works encompass versatile use cases such as remote access, inter-office connectivity, secure client/end-point communication, and Internet access. Core Skills: - Expert in VPN Configuration and Management of various protocols - OpenWRT Firmware Customization - Cultivated expertise in a variety of networking platforms, such as MikroTik, OpenWrt, UniFi, and more - Proficient with Docker Containers and Orchestration, CI/CD pipelines Professional Philosophy: Commitment to delivering user-friendly, reliable, and easy-to-maintain solutions. Striving to demystify network challenges for clients and enable them to concentrate on their core business activities. My vision as a Network and Systems Engineer is to deliver solutions that provide seamless, efficient communication and operations for end-users. Contact me for network engineering expertise that advances your infrastructure in line with contemporary practices and business objectives.Network Engineering
Computer NetworkOpenWrtFirewallOpenVPNMikroTik RouterOSLinux System AdministrationLinuxNetwork EquipmentVPNSSL - $25 hourly
- 4.9/5
- (24 jobs)
-Use of radio propagation modeling and simulation tool such as IBWave, Ekahau, ATOLL,Nemo Analyze to optimise radio indoor, tunnel and outdoor coverage for WiFi and mobile networks (Tetra, LTE, PS25, 5G) -9 yrs experience in RF Postprocessing using Nemo Analyze and Report Generation using Mapinfo, Google Earth, Ekahau, and Autocad Software. -WiFi Survey Design of different WiFi OEM(Cisco, Ubiquiti, Netgear, Ruckus, Aruba,HP, NETGEAR,TP-LINK,Linksys,Zyxel) -Experience in Indoor and Outdoor Coverage Design & Planning using Ekahau, iBWave, and Atoll Software. -Experience in Cellular(2G,3G,4G,5G,Public Safety) and WiFi Antenna and Access Point Location Design. -Design and Planning of Wireless Networks using different Simulation tools(Mapinfo, Google Earth, etc.) -Ubiquiti Unifi Full System Design(WiFi,CCTV,VOIP/Phone,Access Control) -Simulations of Link budget, Coverage, Interference, neighbor lists, SC planning, site power/rf shaping/repeater configuration planning, antenna selection and co-location analysis, population/erlang based traffic planning, design approval reportingNetwork Engineering
UbiquitiCisco MerakiWireless CommunicationMapinfoTelecommunications EngineeringRF DesignWiFiGoogle EarthArubaWireless Network ImplementationAntenna DesignAutodesk AutoCAD - $40 hourly
- 4.9/5
- (17 jobs)
I have been working as Senior Network Engineer at Netfiniti Pvt. Ltd. (Distributor of Fortinet Products) for more than five years. I have been involved in various Government and Private projects regarding New Network Architecture Building, Restructuring of Networks, Deployments of various network devices. Also I have been good at troubleshooting network related problem, network connectivity and overall cloud to on-premise network security. Certified: NSE 4 Network Security Professional NSE5 FortiClient EMS NSE 7 Enterprise Firewall Fortinet Certified Professional (Network Security) Trained: FortiAnalyzer FortiManager FortiSASE FortiEDR SIEM FortiAuthenticator Cloud Security for Azure I am experienced in Secure Enterprise Network, Network Security, Cloud Solutions, Authentication Systems, Active Directory, SIEM technology, ISP Distribution Network and Technical support. I have advanced knowledge in configuration and deep-level troubleshoot of wide ranges of network security and system security solutions.Network Engineering
FortinetFortiGate FirewallMicrosoft VisioNetwork SecurityNetwork DesignNetwork Analysis - $75 hourly
- 5.0/5
- (31 jobs)
I'm Patrick Maher, an accomplished IT professional with over two decades of experience in network engineering, security, IT systems administration, and form design using JotForm. I bring to the table a broad range of expertise, including Windows server administration, VOIP PBX administration, Microsoft 365, Linux administration, Python and Powershell scripting, and proficiency in creating highly functional, user-friendly JotForms. In my current role as a Network Security Engineer for a large healthcare group, I oversee network security, administer the disaster recovery system, and create hundreds of JotForms. I have successfully automated countless IT tasks and have extensive experience migrating sites' phone systems to FreePBX, PBXact, and Switchvox. I am a graduate of Dakota State University, holding a Bachelor's degree in Cyber Operations, with a focus on information security. In addition, I have earned valuable certifications like CCNA Cyber Operations, A+, and the Accredited Configuration Engineer (ACE) Exam - PAN-OS 7.0 Version (Palo Alto Firewalls). Over the years, I have completed several JotForm projects, creating forms for public use and customizing features like conditional logic and integrations. This experience has allowed me to gain mastery over form design principles, user experience, and maintaining visual consistency with clients' branding guidelines. Whether you need assistance setting up and troubleshooting network systems, integrating legacy EMR solutions, or developing custom JotForms, I'm here to provide tailor-made solutions. My mission is to use my skills to improve businesses and provide top-tier IT services. As a freelancer on Upwork, I am thrilled to extend my services to help you achieve your IT and JotForm-related goals. Feel free to reach out to discuss how we can work together to meet your business objectives. Examples of work available, please message me for the links.Network Engineering
PfSenseVoIP AdministrationEmail SupportFreePBXNetwork AdministrationVeeamLinux System AdministrationInformation SecurityLAN AdministrationNetwork Security - $125 hourly
- 5.0/5
- (738 jobs)
Hello! I'm Tristan Curtis, a Top Rated IT Professional / Sr. Software Engineer with a passion for helping people with their technical needs. Backed with a degree in Information and Network Technology, accompanied by multiple certifications, and strengthened by extensive hands-on experience, I am well-equipped to tackle virtually any challenge you throw my way! Understanding the need for prompt assistance, I strive to be available within a moments notice, day or night. I offer a wide array of services including, but not limited to Web Application Development ▪️ Backend: PHP, Laravel ▪️ Frontend: Vue.js, JavaScript, jQuery, HTML, CSS, Sass, Bootstrap ▪️ Databases: MySQL, SQL Server, MariaDB, PostgreSQL ▪️ Specializes in: architecting complex web applications from scratch based on a provided design Web Administration ▪️ Domain and DNS support ▪️ Troubleshooting issues with Nginx, Apache and WHM/cPanel ▪️ Fine-tuning PHP FPM for optimal scalability ▪️ Installing SSL certificates and addressing renewal issues with LetsEncrypt / Certbot ▪️ Migrating websites from one hosting company to another Network Administration ▪️ Proficient in managing networks powered by the following vendors: UniFi, pfSense, MikroTik, Cisco ▪️ Expertise in deploying and troubleshooting wireless connectivity ▪️ Strong knowledge of VPN connectivity for remote access and site-to-site connections ▪️ Experience developing custom splash pages / captive portals to authorize wireless connections Desktop Administration ▪️ Experience with the following operating systems: Windows, Mac OS, Ubuntu and various other Linux distros ▪️ Virtual desktop administration utilizing VMware Horizon Database Administration ▪️ Experience with: MySQL, MS SQL Server, MariaDB and PostgreSQL ▪️ Familiarity with: Google Cloud SQL and AWS RDS Virtual Infrastructure Administration ▪️ Proficient in VMware ESXI/VMware vCenter and Hyper-V Email Administration ▪️ Setting up SPF, DKIM and DMARC for enhanced email security ▪️ Troubleshooting email deliverability issues ▪️ Seamless migration of email from one platform to another ▪️ Well versed in Google Workspace and Office 365Network Engineering
VMware AdministrationData MigrationEmail DeliverabilityWeb HostingTwilio APIDomain MigrationMySQLNetwork AdministrationLaravelSSLPHPUbiquitiDNSSystem Administration - $30 hourly
- 4.9/5
- (33 jobs)
14+ years’ experience comprises vast experience of; • Data Center Solutions (Huawei | Juniper| Mikrotik ) • IGWs Direct Peering SH1X, Amazon, AMS-IX, NETIX-GIX • IGWs Upstream/Downstream Peering with Full/Partial Routing Prefixes handling & used of BGP attributes for Traffic Engineering inbound/outbound. • IGWs Traffic Engineering inbound/outbound. • IGWs Traffic redirection to Huawei I Cache. • Customer EBGP Peering & Routes advertisement. • Juniper/Huawei Route-Reflector & VRFs route leaking & extended-communities. • Huawei/Juniper PE’s Integration for 2G/3G/4G nodes. • Huawei/Juniper Integration for MSX, IGW, UGW, RNC & BSCs. • Juniper/Huawei based IP/MPLS Backbone Networks • Juniper/Huawei based IT/Enterprise solutions • Cisco/Juniper/Huawei based ISP solutions • Huawei to Juniper IP/MPLS Migration projects • Huawei to Juniper Fixed Network Migration projects • Huawei IP/MPLS & Enterprise Modernization projects • Mikrotik Base Solution IT/PS Core. • Mikrotik IPSEC/OPENVPN deployment. • CDNs Facebook, YouTube, Google Integration on Huawei/Juniper. • Huawei/Juniper PE L2Circuits, VPLS. Training: • MTCNA (Mikrotik Certified Network Associate) • MTCRE ( Mikrotik Certified Routing Engineer) • JNCIA (Juniper Network Certified Associate) • JNCIS (Juniper Networks Certified Internet Specialist) • JNCIP (Juniper Network Certified Internet Professional) • CCNA (Cisco Certified Network Associate) • CCNP (Cisco Certified Network Professional) • CCIE R&S (Cisco Certified Internetwork Expert) • Cisco Meraki • AWS Architect Associate • AWS Architect Professional Deployment: • Deployed BGP/MP-BGP/ipv4/V6 • Deployed MPLS/L2VPN/VPLS/VRFs • Deployed ISIS/RIP/OSPF/EIGRP • Deployed NAT/SRC/DST/CGNAT • Deployed GRE/EoIP/IPSEC/l2tp/PPP • Deployed ECMP/PCC • Integrated/Routing PS Core/Gi/GB/GN/Gy/Gx/IU-U/GR/S1-MME/S1U • Integrated/Routing BSC/ABIS/GB/A-Interface/O&M • Intergated/Routing RNC/IUB/IUPS/IUCS/IUR/O&M • Intergated/Routing MSX/Billing/Signalling/LIG/O&M • Integrated/Routing UMG/Voice/Signalling/O&M • Integrated/Routing BTS/Nodeb/E-Nodeb Platforms: • Cisco Switches and Routers • Huawei Switches and Routers (ATN910B, ATN950B, S9303, CX-600X3, and NE40E X8) • Juniper Switches & Juniper Routers, MX960,SRX5800,EX4300,QFX511, SRX5400 & Ex2300-T4 • Cisco Meraki MX64/65/84/100 MR33, MS120/125 • Mikrotik's CCR1072, CCR1009, CCR1036, HEX & RB small series.Network Engineering
JNCIA-JunosJunos OSAmazon Web ServicesOpenVPNCisco RouterCisco Certified Network ProfessionalCisco Certified Network AssociateBorder Gateway ProtocolMikrotik RouterBOARDMikroTik RouterOSCisco Certified Internetwork ExpertJuniperVPNNetwork AdministrationMikroTik - $60 hourly
- 4.2/5
- (12 jobs)
Talented IT Manager offering over 25 years' experience and top-notch abilities in organizing workflows, solving complex problems and making accurate decisions based on sound judgment and analytical strengths. Diligent, forward-thinking and adaptable to dynamic company, customer and project needs. Successful at motivating teams to meet demanding timelines.Network Engineering
Security EngineeringVulnerability AssessmentInfrastructure ManagementSystem DeploymentVMware AdministrationNetwork SecurityCitrixCloud ArchitectureCitrix HypervisorCitrix Virtual Apps & Desktops - $120 hourly
- 5.0/5
- (116 jobs)
Telecommunication and Systems engineer with a focus on Cloud, Networking and Linux, experience in Infrastructure management and deployment. Deployed Private Cloud infrastructure, Datacenter Network Design for Multi-tenancy, fault-tolerant design, NIC Bonding and VRRP for High Availability. Stack: *Full virtual networking with vSwitches and vRouters *VLAN, VxLAN, GRE and Overlay tunnels *IPv6 *MP-BGP, EVPN *Firewalling *VPN/OpenVPN/IPSec/WireGuard/Site to Site and Client-Server * VPP/DPDK for 100G VPN and routing *Advanced Linux management: IPTables, Kernel modules, Virtualization, Networking. *Traffic engineering *Advanced StrongSwan IPSec tunnels, XFRM *Cloudstack with Open vSwitch *OpenNebula with Open vSwitch *OpenDaylight SDN controller with OpenvSwitch *Advanced Proxy setup with Squid/Nginx *Virtuozzo and OpenVZ *KVM and Libvirtd / Proxmox *MicroVM Managment / Firecracker *RADIUS and FreeRADIUS *Pacemaker/Corosync/Keepalived HA cluster *MTLS design and implementation with NGINX *IoT gateway implementation with Raspberry Pi and 4G modems *DevOps experience with Chef and Ansible *Bash and Python scriptingNetwork Engineering
Internet of ThingsApache CloudStackLinux System AdministrationOpenVPNComputer NetworkPrivate CloudKernel-based Virtual MachineSystem AdministrationFirewallUbuntuNetwork SecurityLinuxInternet Protocol SecurityVPN - $135 hourly
- 5.0/5
- (24 jobs)
Are you interested in remote help? - I specialize in Cisco Routing & Switching and Palo Alto Firewalls. - I have experience in other brands like Arista, Meraki, FS, Dell, Brocade. Do you have Network Infrastructure in Central Florida but no local staff to support it? - I can provide "Smart-Hands" services. - University of Central Florida, Bachelor of Science in Information Technology - Cisco Certified Network Associate (CCNA) - Cisco Certified Network Professional (CCNP) - Proficient in Cisco Switching and Routing - Proficient in Palo Alto FirewallsNetwork Engineering
Cisco RouterCisco Certified Network ProfessionalRoutingFirewallPalo Alto FirewallsCisco IOSCiscoDHCPCisco Certified Network AssociateSSLNetwork EquipmentNetwork SecurityNetwork AdministrationCisco Meraki - $15 hourly
- 5.0/5
- (10 jobs)
Hello, I am a senior network engineer with 20+ years of overall experience in Network Engineering. I got myself certified in respective domains as well through CCIE(R&S) & ACMP, ACSP(Aruba Certifications). I have held positions in Enterprise, System Integrator and Service Provider environments and gained extensive hands on experience in Network designing, implementation, troubleshooting and optimization in the domains of Routing & Switching, Wireless, Network Security and Unified Communication. I strongly believe that my knowledge, experience and technical know-how in the field will equip me to exceed your expectations if the opportunity avails to me.Network Engineering
Cisco IOSData Center DesignCisco Certified Internetwork ExpertCisco Certified Network ProfessionalOSPFNetwork Access ControlCisco RouterWiFiCisco CallManagerCisco ASACisco Certified Design ProfessionalNetwork DesignNetwork MonitoringArubaNetwork Administration - $70 hourly
- 4.9/5
- (35 jobs)
Highly skilled C / C++ / Python / Rust / Lua Senior Software Engineer, with over 20 years of experience. My area of interests is in developing high-available, multi-threaded, high-performance Linux network applications. I'm the lead developer, maintainer and the active participant of several popular OpenSource projects. My recent projects: * custom modules for Envoy / Istio / Emissary projects * custom Nginx modules development (C / C++ language) * custom Apache modules development * custom HAProxy modules development * custom Varnish modules development * porting existing C code to WebAssembly * OpenResty Lua modulesNetwork Engineering
Video StreamSystem ProgrammingEnvoyApache HTTP ServerGitNGINXLinuxSystem AnalysisSecurity EngineeringLuaRustFFmpegWeb Application FirewallC++CPython - $35 hourly
- 5.0/5
- (24 jobs)
I'm a Network Engineer, with a proven experience designing, deploying, and managing technology solutions ( Cisco/PaloAlto/Fortinet..) for a wide variety of business needs (LAN/WAN/VPN) and diverse IT scenarios for ISPs, enterprises, and startups.. Certifications: ✔️CCNA Certified Network Associate. ✔️CCNP Routing and Switching ✔️CCNP Service Provider. Skills in: ✔️ ISP environment : BGP;MPBGP,MPLS,VRF,PE,P.. ✔️Routing and Switching: Cisco, Dell, HP, Meraki ✔️Firewalling: Cisco ASA, Fortinet, Palo-Alto, Pfsense. ✔️ DataCenter : Cisco Nexcus . ✔️ Routing Protocols: BGP, IS-IS, OSPF, EIGRP. ✔️ VPN : SSL VPN ; IPSEC, Site-To-Site. ✔️ Wireless: Cisco AP,WLC, Meraki . When you working with me you will get: ✔️ High-quality work ✔️ Open communication throughout the project ✔️ All files delivered on time, before the deadline ✔️ Fast response --- Contact me for more info or to inquire about an upcoming project - I look forward to helping you achieve your goals!Network Engineering
Cisco IOSOSPFCisco RouterMultiprotocol BGPMultiprotocol Label SwitchingNetwork PlanningLAN AdministrationCisco ASACisco Certified Network ProfessionalWireless Network ImplementationNetwork AdministrationVPNFortinetNetwork Design - $25 hourly
- 4.8/5
- (59 jobs)
I am an experienced and confident (Network/System) engineer with more than 15 years' experience in a variety of network environments. Expert in: *** Operating Systems: 1- Windows Servers 2003/2008/2012/2016/2019. 2- Linux Centos/Ubuntu. *** Virtualization Technology: 1- Vmware. 2- Proxmox. *** Networking: 1- Cisco. 2- Teltonika. 3- Mikrotik. 4- Ubiquity & Unifi. 5- PFsense & OPNsense. 6- Fortigate. 7- Netgear. *** VPN 1- OpenVPN. 2- Softether. 3- WireGuardNetwork Engineering
Virtual Private ServerPythonSystem AdministrationcPanelMikrotik RouterBOARDLinux System AdministrationProxmox VENetwork AdministrationVirtualizationVirtual LANZabbixVPN - $50 hourly
- 5.0/5
- (41 jobs)
👑 Expert Vetted - Top 1% of talent on Upwork ⭐️ Top Rated Plus - Highly rated for work on large projects 🎯 100% Job Success Score 🕒 1500+ hours on Upwork ✅ 13+ years of experience ✅ 35+ projects delivered ✅ Excelling in delivering Fortune 500-scale projects Over 13 years of extensive experience in Cloud Environment, Corporate Network, FinTechs and ISPs. In Summary, my credentials include, Cloud Expertise Amazon Web Services (EC2, S3, VPC, IAM, Security-Groups, DirectConnect, Transit Gateway, WAF etc) Oracle Cloud Infrastructure (VCN, Subnets, Route Tables, Compute, IAM etc) Google Cloud Platform (IAM, Compute Engine, Firewall, Partner Interconnect, VPN, VPC etc) Security: Cisco FMC, FTDs & ASA, Palo Alto Network Firewalls and Panorama, Fortinet, FortiManager, Fortigate Firewalls, F5 BigIP LTM WAF, IPSec & Remote Access VPNs, NGIPS, Threat Prevention, URL Filtering, Cisco ISE, Cisco DUO, TACACS & Radius Authentication, SIEM, Cortex XDR, Wazuh, Rapid7, Security Onion Routing: OSPF, BGP, MPLS, Policy Base Routing using Route Maps, TCP/IP, Layer 3 Redundancy (HSRP), IP Spoofing, Virtualization (VRF), IP SLA, NAT/PAT, GRE Tunnels. Switching: Nexus VPC, Cisco Stack, Catalyst VSS, VXLAN, Spanning Tree Protocol, EtherChannels (LACP, PAGP), Access-Maps. DevOps: Terraform, Ansible, Python, Git, BitBucket, Docker, Jenkins, Linux, Netbox, Wireshark PCNSE, PCNSA CCNA 200-120 CCNA Security 640-554 CCNP R & SNetwork Engineering
FortiGate FirewallFortinetCisco Certified Network ProfessionalCisco ISEVPNOracle CloudAmazon Web ServicesGoogle Cloud PlatformCisco Firepower Threat DefensePalo Alto FirewallsAnsibleNetwork DesignFirewallNetwork Security - $45 hourly
- 5.0/5
- (18 jobs)
A self-motivated professional cloud and DevOps expert with strong work ethic. A certified GCP PCNE, ACE and boosting experience with AWS and Azure for over 3.5 years. I excel in crafting and deploying multi-cloud infrastructure solutions for businesses across startups and large scale corporations for cloud migrations. I provide services tailored to solve your business needs. I have the following: 👔 4.5+ Years of Professional Experience at coralbay.tv (including SES, other bluechip companies), GFT (Deutsche Bank account) ☁️ AWS – 4.5 years - Elastic Kubernetes Service (EKS), EC2, VPC, DynamoDB, PostgreSQL, Prometheus, Grafana, Node-exporter, Elasticsearch, Fluentd, Kibana, CloudFormation, Elastic Container Service, RDS, IAM users, EFS, NAT Gateway, S3, Security Groups ☁️ Azure – 4.5 Years - Azure Kubernetes Service, Azure Container Instances, Active Directory, VNet, Postgres Database, Postgres Flexible Server DB, AAD, Blob, Jump Box, NFS, Prometheus, Grafana, Node-exporter, Elasticsearch, Fluentd, Kibana ☁️ GCP – 4.5 Years - Google Kubernetes Engine, Network, Databases, Filestore, IAM, NAT Gateway, Firewalls, Prometheus, Grafana, Node-exporter, Elasticsearch, Fluentd, Kibana The following services are provided across all the 3 major clouds: 🏗️ Cloud and Infrastructure Architecture: Designing and implementing tailored cloud-based solutions to ensure optimal performance, scalability, and security for your business. 🛠️ DevOps: Integrating development and operations teams to establish a streamlined, automated workflow using tools such as GitHub Actions, Jenkins and BitBucket. 👨💼 Managed Services for GCP, AWS and Azure: Providing continuous support and maintenance for your cloud infrastructure, including monitoring, security, backup and disaster recovery, and cost optimization. ☁︎ Cloud Migration: Assisting in the migration of your existing applications and services to the cloud, guaranteeing a seamless transition with minimal downtime. ⚙️ Infrastructure as Code: Utilising Terraform and CloudFormation to automate deployment and management of your infrastructure. 🔐 Security: Ensuring your cloud infrastructure adheres to the latest security standards and regulatory requirements. With a deep understanding of the latest cloud technologies and best practices, I am well-equipped to help you achieve your business objectives and revolutionise the way you operate.Network Engineering
Cloud EngineeringDevOpsAutomationBash ProgrammingGitHubJenkinsCI/CDMicrosoft AzureGitDeployment AutomationKubernetesGoogle Cloud PlatformTerraformDockerAmazon Web Services - $85 hourly
- 5.0/5
- (4 jobs)
Highly skilled and results-driven DevOps engineer with a strong specialization in Kubernetes, AWS, bare metal server orchestration, Terraform, networking, and virtual machine configuration. Offering a proven track record in designing, implementing, and maintaining robust infrastructure solutions for complex software systems. Adept at driving operational efficiency, scalability, and reliability through automation, continuous integration, and cloud technologies. Passionate about optimizing deployment processes and enhancing system performance while ensuring security and adherence to best practices. As an experienced DevOps professional, I thrive on urgent challenges, understanding the value of time for your business. Dedicated to swiftly and efficiently resolving issues, often within minutes, I bring a deep understanding of optimizing servers to handle high volumes of visitors and improving website and application performance. I take pride in delivering innovative solutions that have resulted in significant cost savings for my clients, amounting to thousands of dollars in infrastructure expenses. Committed to collaborating with cross-functional teams, I streamline development workflows and maximize the agility and productivity of organizations in fast-paced environments. With a comprehensive skill set in both software development and operations, I bring expertise that drives successful outcomes for businesses.Network Engineering
Cloud Engineering ConsultationCloud EngineeringCloud MigrationDatabase AdministrationLinux System AdministrationRubyContinuous IntegrationDevOpsVMWarePythonAmazon Web ServicesCI/CDTerraformKubernetes - $200 hourly
- 5.0/5
- (15 jobs)
I have 20+ years of experience in Information Technology across a variety of roles (IT Director, Systems Administrator, Software Engineer) and with a wide range of technologies. I enjoy helping companies optimize their use of technology, reduce costs, and resolve problems. I'd love to help your business today! During my time as an IT Director for a large, multi-location non-profit I oversaw all aspects of IT including systems (servers, workstations, printers/copiers, phone systems [PBX]), networks (firewalls, security gateways, switches, wireless access points, ISPs, load balancers), applications (CRM, Office, Creative, Marketing), services (email, cloud storage), and software engineering (websites, web applications). I managed a staff and volunteers that served thousands each week, built out new locations and managed the IT for mobile locations and events. I also have first-hand experience working with IT in creative, legal, construction, social networking, and startup companies. This includes building a self-service housing management solution for a University, implementing industry specific software applications with niche requirements, and maintaining public facing websites under heavy load. I have experience with managing the build out of Building Access Control (BAC) systems, security cameras (CCTV), and even a Fire Alarm System (FAS). I've worked with a variety of equipment (Dell, HP, Cisco, NetGear) and software (Windows, macOS, Linux) over the years but there seems to be a particular interest on Upwork for individuals with Ubiquiti experience. I've been working with Ubiquiti equipment, particularly their UniFi line for 6+ years. This includes building out entire networks from UniFi OS/Console (centralized management/monitoring) to Dream Machines, Network Applications, Cloud Keys, Security Gateways, Switches, Wireless Access Points (WAPs or APs), Power-over-Ethernet (PoE), Cameras, and network video recorders (NVR). This has included load balancing scenarios and usage in temporary locations where traditional cabling was not an option. I'd love the opportunity to help you with whatever IT needs you may have!Network Engineering
Database AdministrationIT InfrastructureInfrastructure ManagementNetwork AdministrationInformation Technology OperationsSolution ArchitectureTechnical SupportIT ManagementInformation TechnologyUniFiUbiquitiIT ConsultationGoogle Workspace AdministrationWindows ServerSystem Administration - $165 hourly
- 5.0/5
- (36 jobs)
Executive Consultant, Architect and Engineer specializing in Cybersecurity, Networks, Cloud, and IT Systems with proven international business experience and management skills. UPWORK experience: 9000+ work hours, 100% Job Success, Top Rated Plus, Expert-Vetted. With 15+ years of professional experience, I provide a complete set of services from proven advanced technical solutions and methodologies to business development, team-building, and management. I have successfully delivered complex projects across heterogeneous environments such as Telco/ISP providers, SMB, and Large International Enterprises in USA, Europe & Globally. Main offered services include: • Cybersecurity Architect • Network Architect • System Architect • Cloud Architect • Digital transformation • Solution design and implementation • IT strategy development • Information Security Manager • vCTO | vCIO | vCISO • Executive Consultant Highly experienced SME in the following technology fields: Information Security & Cyber Security • Develop & enhance Cybersecurity management frameworks. • Develop, implement & monitor strategic, comprehensive enterprise information security & IT risk management programs. • Develop, and maintain cybersecurity policies, standards, baselines, guidelines, and procedures. Network/IT/System Security • Firewall, UTM, NGFW & NG-IPS protection: Fortigate, FortiManager, FortiAnalyzer, Cisco (ASA FirePower), Barracuda, pfSense, Checkpoint, PaloAlto, SonicWall, WatchGuard • Email Security: Cisco, Barracuda, Mimecast, Microsoft • Web Security: Cisco, Barracuda, Fortinet, McAfee, Zscaler • Proxy and Reverse Proxy: Squid, Nginx, Dante • IPSec VPN & SDWAN: Cisco DMVPN, HPE ADVPN, Fortigate ADVPN • SSL VPN: Fortigate, Cisco, PaloAlto, Barracuda, SonicWall, OpenVPN, pfSense, Swan, OpenConnect • Network Access Control (802.1X, Radius, Tacacs+…), BYOD and MDM : Aruba ClearPass, Cisco ISE, PacketFence, NPS, Genians, Intune... • ZTNA Expert with all leading multi-vendor solutions • IAM SSO SAML2 Oauth: OKTA, Keycloack, Auth0 • DLP & CASB Bitglass, Forcepoint • EDR McAfee, Sophos, SentinelOne... • SIEM and SOC solutions - Wazuh, Fortinet, Splunk... IT Cloud/Systems/Virtualization/Backup/DR • Hybrid Cloud, Multi Cloud Architecture • Cloud Infrastructure Security, Networking, Storage, VPC (AWS, Azure, OVH, OpenStack...) • Virtualization planning, implementation, tuning (VMware, Proxmox, KVM, Hyper-V) • Hyperconverged HCI solutions ESXi & vSAN, Proxmox & CEPH • Linux Systems deployment, administration and development (Debian Ubuntu OpenSuSE CentOS RedHat) including performance optimization, hardening, scripting, HA, backup & restore • Windows Server architecture & administration (Hyper-V AD GPO DNS DHCP PKI File Server ...) • SAN (FC/FCoE), ISCSi, NAS(File) • VDI and Virtual App (Microsoft, VMware, Citrix) • Load Balancer/Application Delivery: HAproxy, Nginx, Barracuda, F5 • ElasticSearch & OpenSearch design & implementation • Critical HA Database clusters: PostgreSQL & MySQL • HA, Backup & Disaster Recovery planning & deployment (Veeam, VMware, Proxmox, Linux, AWS, Azure, Windows...etc) Network technologies • Switches: Cisco, HPE, Comware, Aruba OS, Arista, Alcatel, Juniper, Dell • Routers: Cisco, HPE, Comware, Alcatel, Juniper, Mikrotik • WiFi Mobility: Aruba OS & Central, Cisco, Meraki, Ubiquity, Mikrotik • MPLS L2/L3 VPN, MP-BGP, VPLS, SDWAN • BGP, OSPF, IS-IS, EIGRP routing protocols • FRR, VyOS, Bird • VLAN, QinQ, VXLAN, EVPN L2 scalable overlay networks • ACL, PBR, NAT, QoS, NAS; large-scale DHCP/DNS • IGMP L2 and PIM L3 multicast • Secure WiFi planning: controller managed & cloud-managed • NMS, EMS, FCPAS and OSS/BSS systems - LibreNMS, Zabbix, Nagios, Cacti Some of the most notable certifications I hold are: • CISSP - ISC2 • HPE Master Accredited Solution Expert - Network Solutions • HPE Accredited Solutions Expert - Network Architect • SUSE Cert. Linux Admin.: SLES In addition to technical skills, I deliver proven business operations experience for: • Business development planning and acquiring the correct technology • Project Management • Team building and management • RFP preparation Proposal preparation (technical/commercial) • Pre-sales & Sales Management • Business development, planning, and acquiring the correct technology • Project Management • Team building and management • RFP preparation Proposal preparation (technical/commercial) • Pre-sales & Sales Management • Business partnership establishment and management with leading companies such as HPE, Aruba, Fortinet, Cisco, IBM, Dell, Microsoft… and many more I am an avid learner, enabling me to swiftly adapt to new business environments and new project needs. Excellent communication and interpersonal skills combined with my long experience in team-leading & management enable me to collaborate strongly and work in global project teams with multiple members (in both leading or supporting roles).Network Engineering
Certified Information Systems Security ProfessionalFirewallHigh Availability and Disaster RecoveryNIST Cybersecurity FrameworkNetwork DesignNetwork ArchitectureSolution ArchitectureCloud ArchitectureCloud SecurityBusiness DevelopmentSystem AdministrationCybersecurity ManagementInformation SecurityVPNNetwork Security - $225 hourly
- 5.0/5
- (90 jobs)
Hey, I'm James. I've been a self-employed business network and server admin for 21+ years. I've worked with all flavors of Linux and Windows for some of the best businesses in the country. My average customer that I've worked with has been with me over 10 years. I specialize in analyzing current infrastructure and determining the needs of my clients then providing a written plan to correct any issues and protect the business systems from hackers and cryptolockers. In one of my recent projects, I consulted with a six billion dollar, publicly traded company to completely redesign their infrastructure to have redundant firewalls, VMWare host servers, leased fiber lines directly to Amazon AWS with a VPN backup over a regular Internet circuit that would automatically fail over in case of any circuit issue. The vmware servers would auto migrate the guests in the case of overload or host server failure. All power systems were redundant with two powersupplies for each piece of equipment. At the end of this project, we had reduced their monthly cost of management by over 25,000 per month and reduced their server load from over 20 servers to just 8 servers. When you hire me, here's what you can expect: 1. First, click the invite button to invite me to your job. 2. Once everything is accepted, I'll jump on the phone or a zoom with you 3. We'll go over the details of the job and I'll ask questions to drill down to the specific goals you want to accomplish. 4. I'll provide you with a high level written plan to address your goals along with expected time needed to complete your project. 5. When we agree on the timeline and process, I will execute the plan. So, if this sounds good, just click the "invite" button and we can start.Network Engineering
DockerEmail DesignNetwork AdministrationNetwork MonitoringNetwork DesignLinux System AdministrationNetwork SecurityNetwork PlanningWeb HostingWindows AdministrationVirtualizationSystem AdministrationSystem MonitoringNGINX - $60 hourly
- 4.9/5
- (349 jobs)
Skilled System Administrator and Network Engineer with over 20 years of hands-on experience, adept at organizing networks for single-office environments or multiple offices connected via VPN. I am highly proficient in Unix system administration (Linux and FreeBSD), covering DNS, DHCP, LAMP/LEMP, FTP, SMTP, SNMP, ACLs, firewalls, and NAT, BGP. My expertise also extends to major cloud platforms (AWS, Vultr, DigitalOcean) and virtualization technologies (vSphere, Hyper-V, Proxmox), as well as monitoring tools (Zabbix) and VoIP/IP telephony systems (Asterisk, FreePBX). Here is what past clients have said about my work: - “Pavel was fantastic! My project hit a snag and I needed an FTP server configured quickly. He jumped in immediately, resolved the issue in no time, and answered all my questions in a friendly manner. This guy is a real problem solver!” - “Very smart when it comes to Linux systems—was able to help with our issue.” - “A very skilled and professional expert who solved all additional and unexpected problems with patience. He overdelivered, and I highly recommend working with him!” - “The problem was solved quickly and efficiently.” - “Pavel did a great job tracing the problem and solving it.” - “Pleasure to work with.” I take pride in my ability to quickly diagnose issues, implement reliable solutions, and consistently exceed client expectations.Network Engineering
AsteriskDNSsecWordPressLinux System AdministrationFirewallApache AdministrationMySQLLAN AdministrationSession Initiation ProtocolSquidWeb HostingVMware vSphereNGINX - $75 hourly
- 4.9/5
- (417 jobs)
🏆 UPWORK EXPERT-VETTED | NETWORK & SECURITY ENGINEER & ARCHITECT 🏆 I am a Network and Security Engineer/Architect with 17+ years of experience and an Expert Vetted Freelancer on Upwork, with 14,000+ hours logged. I specialize in designing, securing, and optimizing enterprise, ISP, data center, and cloud networks with a strong focus on high-performance, scalability, and security. 🔹 Enterprise Networks | Service Providers | Data Centers | Cloud 🔹 Security & Firewalls | VPN & Remote Access | Network Automation ________________________________________ 💡 CORE EXPERTISE & TECHNOLOGIES ✅ Enterprise & Service Provider Networking ✔ Vendors & Models: • Cisco: ASR 1000/9000, ISR 4000/8000, Catalyst 9000/3850, Nexus 9000/7000 • Juniper: MX480/MX204, SRX Series, QFX/EX Series, vSRX, vMX • MikroTik: CCR1036/CCR2116/CCR2004, CRS3xx, hEX, hAP • Arista: 7050X, 7280R, EOS-based solutions • Dell: PowerSwitch (S5248, S4048, N3048) • Brocade/Ruckus: ICX 6610, FastIron, VDX 6740 • Mellanox: SN2100/SN2700, ConnectX adapters • Ubiquiti: UDM Pro, USG-3P, Unifi Switch Gen2, AP U6 • Motorola/Cambium: PMP 450i, PTP 550, Medusa • Aruba: CX 6300/6400, Instant APs ✔ Technologies: • Routing: BGP, OSPF, EIGRP, IS-IS, MPLS, VXLAN, EVPN, Segment Routing • Switching: VLANs, STP, LACP, MLAG, VRRP, HSRP, QoS • Load Balancing: HAProxy, Cloud Load Balancers, Cisco SLB, F5 ________________________________________ ✅ Firewalls & Security Solutions ✔ Vendors & Models: • Fortinet: FortiGate 60F, 100F, 600E, 1000D, VM-Series • Palo Alto: PA-3200, PA-5400, VM-300 • Sophos: XG 210, XGS 3300, UTM 9 • SonicWall: TZ470, NSA 2650 • Zyxel: ZyWALL VPN 100, USG FLEX 200 • PFSense/OPNSense: Netgate 6100, SG-5100 • Untangle: NG Firewall on U50/U150 ✔ Security Services: • Next-Gen Firewall (NGFW) Deployment & Optimization • Intrusion Prevention (IPS/IDS), Zero Trust, DDoS Mitigation • Web Filtering, Application Control, SIEM Integration ________________________________________ ✅ ISP & Broadband Solutions ✔ Vendors & Models: • Huawei: MA5608T, MA5800, EchoLife ONT • ZTE: C320, C600, ZXHN series • Netonix: WS-12-250-DC, WS-26-400-AC • MikroTik: GPEN11, GPEN21 ✔ Technologies: • FTTH GPON/XG-PON, Carrier-Grade NAT (CGNAT) • PPPoE, RADIUS, BRAS/BNG, IPv4/IPv6 Migration ________________________________________ ✅ VPN & Remote Access Solutions ✔ Technologies: • IPSec, OpenVPN, WireGuard, SSL VPN, GRE, L2TP, DMVPN, SD-WAN Tunnels • Enterprise VPNs, Hybrid Cloud Connectivity, Remote Workforce Security ________________________________________ ✅ Linux, Cloud & Virtualization ✔ Linux: Ubuntu, Debian, CentOS, OpenBSD, FreeBSD ✔ Virtualization: VMware ESXi, Hyper-V, Proxmox, KVM, Xen ✔ Cloud Networking: AWS, Azure, Vultr, DigitalOcean, Linode ________________________________________ ✅ Network Monitoring & Automation ✔ Monitoring: PRTG, Grafana, LibreNMS, Cacti, NetBox, phpIPAM, Zabbix, FastNetMon ✔ Automation: Python (Netmiko, NAPALM), Ansible, Terraform, REST APIs ________________________________________ 📜 CERTIFICATIONS 📌 Cisco Certified (CCNP, CCNA, CCDA, CCDP) 📌 Juniper Certified (JNCIS, JNCIA) ________________________________________ 💼 SERVICES I OFFER ✔ Network Design & Optimization – Enterprise, ISP, Data Center ✔ Firewall & Security Hardening – NGFW, IPS/IDS, Zero Trust ✔ Cloud & Hybrid Networking – Multi-cloud, VPC Peering, Transit Gateway ✔ VPN & Secure Remote Access – IPSec, SSL, SD-WAN ✔ ISP & Broadband Solutions – BGP, MPLS, GPON, IPv6 Migration ✔ Network Troubleshooting & Performance Tuning ✔ Network Automation & Monitoring – Ansible, Python, APIsNetwork Engineering
JuniperNetwork ArchitectureNetwork PlanningNetwork DesignCiscoSophos Sophos UTMPfSenseMikrotik RouterBOARDSecurity EngineeringUbiquitiVPNNetwork EquipmentNetwork SecurityFirewall Want to browse more freelancers?
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