Hire the best Network Security Engineers
Check out Network Security Engineers with the skills you need for your next job.
- $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 SecurityDockerEmail DesignNetwork EngineeringNetwork AdministrationNetwork MonitoringNetwork DesignLinux System AdministrationNetwork PlanningWeb HostingWindows AdministrationVirtualizationSystem AdministrationSystem MonitoringNGINX - $55 hourly
- 4.7/5
- (37 jobs)
Certified Network Administrator/ Enterprise Ubiquiti Network Expert Certified Systems Engineering Expert Certified Systems Administration, Certified IT Support Specialist/Cyber Security Consultant Certified Network Security Expert (Home / Business), VAPT Certified System Security Expert. Certified HelpDesk Support Specialist Microsoft Azure Certified, Microsoft365/Azure EntraID Network Security Certified Network Security and deployment Consultant Domotz Expert/ Synology consultant Fortigate Certified Sonicwall Expert, Unifi/Ubiquiti Expert Hands on Experience on: Microsoft Exchange Online Windows 10 Administration Server Administration Experr Windows 11 Administration Remote IT Management/ VPN management Windows Server Administration Expert Domain Migration Microsoft Outlook Network Equipment consultation Server Virtualization Microsoft Windows Powershell Microsoft Active Directory Office 365 DNS DHCP Cisco, Fortinet, Fortigate, Pfsense Expert, Unifi/Ubiquiti Expert Administrator UDM pro, USG Expert UDM vpn Expert unifi specialist., MDM solution Specialist(jamfpro, Sophos mdm,) Azure, AWS, Google Work Space, Contabo, Rackspace Unifi, Ubiquiti Expert, SonicWall Expert(VPN troubleshooting) Threat Hunting, IPS ,IDS, WEB SECURITY, QUALYS, SENTINALONE. SOPHOS Network Administration, System Administration, Office365, Intune, MDM, Windows users Administration. Domotz admin, NAS, VLan Expert Windows servers 2016-2022 Failover Clustering , Hyper-V management, RDS, Synology DSM, Virtual Hosting. QNAP , QSAN ,NAS,SAN Active Directory Expert, VPN, Switches ,Routers Zendesk trainer, EDR, XDR, Connectwise Admin, CWRMM, Sentinal one Azure Sentinal. Fortinet, Cisco, Network monitoring Expert, Veeam Backup Specialist(Cloudberry, SPX) HIPPA complaince certified, PCI DSS accessor, PCI DSS complaince Expert. Having Certs (NSE1, NSE2, NSE3) ,CCNA, CCNP(training) Crowd Strike Deployment, TrendMicro deployment. Cloud Network/ System Administrator and Network/System Security consultant NSE 1 NSE 2 ICSI CNSS certified having vast and versatile experience in Network Administration with vast working in cloud technologies, QNAPS, VIRTUAL PRIVATE SERVERS , ACTIVE DIRECTORY. SECURING THE WEBSERVERS , SECURITY OF ON PREM NETWORK. Have worked on the antivirus deployments Crowd strike TrendMicro, Webroot, managing incidents and alerts on them. also have hands on Cisco network designs firewall configurations. Server and system administration grip on Windows Server (2012 2016 2019 2022) remote task management and remote assistant to the clients as well worked with the organization and provided them with tech skills network and system administration support as well as offered soft skills, my primary skillset is Network Design Network security OWASP mitigation System Hardening System Security Network Optimization Server administration Server Migrations Network troubleshooting Firewall Configurations Backup policies / configurations Desktop support. Cloud management Failover clustering Deployment and Management (Windows Server 2019, 2016, 2022). System security Solutions and Deployment. System Hardening. I will be optimizing the networks and will be providing industry solutions to clients including deployment of Antiviruses like crowd strike as well as trend micro I will be looking forward for more technical work here to pursue as a network and security consultant and technical support freelancer. I am sure I will provide quality work to the clients as per their requirements, and for me, client satisfaction is much important than the earned amount. I have worked with the US dental offices and MSP, so I want to invest my time here to reap good results. and serve the people here with my good technical skills about home networks and office networks . Hands on experience on Cisco Switches(CCNA CCNP LEVEL) and SonicWALL's + Fortigate firewalls, QNAP , QSAN, SYNOLOGY, Buffalo NAS, During My freelancing career i have worked on multiple projects like Network Designs solution deployment across the organization and on top of it have hands on Experience of vendor Management and have know how towards the TrendMicro and Crowd Strike. Setting up IT office were the main procedures during my Job Tenures and also Veeam backup deployment across the organization. EDR, MDR AWS AZURE Specialist. Experience in QNAPS, Synology, Virtualization Expert, Hyper V. Hands on Experience for providing Remote IT Support to multiple clients. Managjng Networks servers plus Security configurations. Hypervisor Expert, Remote IT tools complete Hands on Experience, vpn Expert wiregaurd, openvpn, NAS Expert.Network SecurityUbiquitiInformation SecurityNetwork AdministrationBackup AdministrationIntrusion Prevention SystemBackup & MigrationCisco Certified Network AssociateSystem SecurityNetwork EngineeringMicrosoft AzureMicrosoft Active DirectoryOffice 365System Administration - $59 hourly
- 5.0/5
- (84 jobs)
Am a CCIE#26611 with extensive experience in Routing & Switching, Security, Datacenter, Virtualization, Programmability & Automation. Am delivering unique & absolutely different service for the below technologies: * SDN Datacenter: Cisco ACI, VMware NSX, Nutanix Flow, Arista. * SDN Storage: Cisco HyperFlex, Nutanix HCI, VMware VSAN. * SDN Access: Cisco DNA, LISP Implementation, Cisco Spaces, Cisco ISE, PacketFence. * SDN WAN: Cisco SDWAN, VMware VeloCloud, SilverPeak, PaloAlto SDWAN, FortiGate SDWAN, Meraki. * Programmability & Automation Controllers: Python & API tools to automate business intent & workflows within networks, Ansible, Chef, NSO, Terraform, OpenShift. * Monitoring Applications: Zabbix, SolarWinds, Home Made Custom Tools, Nmap, Packet Tracer (Wireshark), Splunk. * Routing & Switching and Wireless Technologies: Cisco, Mikrotik, Juniper, FS, Arista. * Security: Cisco, PaloAlto, Meraki, FortiNet, Ubiquiti, VMware MDM, Infoblox. * Datacenter, Cloud Computing, Cloud Native, Virtualization & HCI Solutions. * Public Cloud: Design, Setup & Administer Tenants on AWS, Azure. * Micro-segmentation & Containerized Applications: Docker, Kubernetes. * API Gateways & Swagger Documentation. * Python Scripting for DevOps, SecOps, NetOps & IaC. * Technical Writing & Documentation. Please refer to my LinkedIn account aossama. Certifications: * CCIE Enterprise CCIE#26611. * Cisco CCNP DevNet. * Cisco CCNP Enterprise. * Cisco CCNP Datacenter. * Cisco ACI Certified Specialist.Network SecurityServer & Virtualization SoftwareFortinetMikroTikCisco MerakiPalo Alto FirewallsNetwork DesignNetwork MonitoringNetwork EngineeringPythonInformation TechnologyCisco Certified Internetwork ExpertCisco ACISoftware-Defined NetworkingCisco - $39 hourly
- 5.0/5
- (124 jobs)
I have 30-years experience in network projects including design, implementation, system administration and in software development. For the first 5 years of my career I worked on software development: coding and especially testing. For the last 25 years I'm working on implementation and maintenance of University of Nis WAN. Last 20 years I'm deeply involved in AMRES (Academic Network of Serbia) project. Don't fix it if it ain't broken, don't break it if you can't fix it! SKILLS SUMMARY - Any system administration tasks - Operating Systems: any *nix (Linux, FreeBSD, SGI IRIX, SCO, Solaris, OSX), Windows 3.1/9x/Me/XP/Vista/W7/W8/W10, WinServer NT/2K/2003/2008/2012/2016 - LAN & WAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI and Wireless LANs. T1/T3, SDH/SONET, Frame Relay, WDM, ISDN, ADSL, SHDSL, Cable Modems, Cellular, X.25. - Network Protocols: TCP/IP, IPv6, UDP, OSI, CDP, IP Multicast, IPSec, VoIP, Routing, VLANs, Bridging, Trunking, VPN, SNA, DLS - Network Services & servers: SMTP/POP3/IMAP, FTP/SFTP, Telnet/SSH, HTTP/HTTPS, DNS, DHCP, NNTP, NTP, LDAP, SNMP, NETBIOS, Apache, Nginx, MySQL, Plesk, cPanel, Zimbra, VMware, CentOS, Ubuntu, Debian - Network Equipment: various types of modems, firewalls, switches and routers. - Dedicated, VPS and cloud environment servers (Amazon AWS, Google Cloud, MS Azure, Digital Ocean, Linode). - Programming Languages: Unix Shell scripting, BASH, C, Pascal, MS Visual Basic, PHP, HTML, (a bit of Python).Network SecurityCentOSUbuntuSystem AdministrationApache AdministrationSSLLet's EncryptLinux System AdministrationFirewallRed Hat AdministrationInternet SecurityCloudflareZimbra AdministrationUnix System AdministrationNetwork Administration - $50 hourly
- 5.0/5
- (218 jobs)
I am a 2x Certified Elastic Stack (ELK) Engineer and successfully designed and implemented over 200 Elasticsearch projects, managing hundreds of terabytes of data for different use cases. My expertise include consulting and implementation of the Elastic Stack, including Elasticsearch, Kibana, and Logstash. I specialize in cluster architecture, setup, configuration, scalability optimization, maintenance, and integration with databases, third-party tools, and custom data sources. My key skills are 1. Data Processing and Pipeline Development: Expert in crafting complex ingest and Logstash pipelines for efficient data cleaning and transforming raw logs into structured data. 2. Advanced Integrations and Tooling: Skilled in integrating Elastic Stack with machine learning, Generative AI (RAG), Elastic Agent, filebeat, metricbeat, auditbeat, winlogbeat, uptime monitoring, APM, Kibana Canvas, and other Elastic tools. 3. Specialized Applications: Implemented Elastic Stack solutions for a variety of applications, including log analytics, SIEM, cybersecurity, full-text search, data analytics, and reporting. If you’re seeking support for implementation, upgrades, maintenance, optimization, cluster review, or proof-of-concept development around the Elastic Stack, I’m here to help. Additionally, I provide migration services from other platforms such as Solr, OpenSearch (OpenDistro), QRadar, and Splunk.Network SecurityIT InfrastructureObservational Data AnalysisGrok FrameworkKibanaLogstashFirewallElasticsearchApache LuceneFull-Text SearchSphinxApache SolrMySQL - $75 hourly
- 5.0/5
- (19 jobs)
My approach involves a meticulous understanding of project requirements, coupled with a hands-on approach to problem-solving. I am committed to delivering comprehensive solutions that span from the endpoint to the perimeter, ensuring the integrity and security of your IT infrastructure. Key Areas of Expertise: - Cybersecurity: Specialized in Fortinet products - Fortigate, Forticlient, FortiEMS, Fortianalyzer, FortiManager, Fortiswitch, FortiAP - with a keen focus on innovative solutions. I'm also Fortinet NSE4 certified and an official Advocate Fortinet Partner. - Virtualization: Proficient in installation, configuration, and troubleshooting of virtualization solutions using VMware and Hyper-V. - Cloud Solutions/Architect: Well-versed in Microsoft 365 and Azure cloud solutions. - Networking: Extensive experience in building and implementing end-to-end projects for small/medium LAN/WAN environments using a variety of vendors and technologies like Cisco, Aruba, and Fortinet. Why Choose Me? - Diverse Skill Set: As a "jack of all trades," I bring a wealth of experience across various IT domains. - Cybersecurity Focus: My dedication to Cybersecurity and Fortinet projects ensures cutting-edge solutions. - Commitment: I am incredibly responsive, responsible, and available for any IT infrastructure/operation project, ready to contribute my expertise to drive your success.Network SecurityDNSMicrosoft Active DirectoryVMware vSphereVirtual LANNetwork AdministrationLAN ImplementationFortinetCisco UCS - $165 hourly
- 5.0/5
- (32 jobs)
Sr. 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 SecurityCertified Information Systems Security ProfessionalFirewallHigh Availability and Disaster RecoveryNIST Cybersecurity FrameworkNetwork DesignNetwork ArchitectureSolution ArchitectureCloud ArchitectureCloud SecurityBusiness DevelopmentSystem AdministrationCybersecurity ManagementInformation SecurityVPN - $28 hourly
- 5.0/5
- (20 jobs)
Dedicated and detail-oriented Security Engineer with over 5 years of experience, I specialize in protecting networks and systems from potential threats and ensuring the integrity of your data. My passion for cybersecurity drives me to stay ahead of the latest trends and threats, allowing me to implement robust solutions tailored to your need. I have a proven track record of enhancing security postures through: Threat Analysis: Conducting comprehensive risk assessments to identify vulnerabilities and threats. Security Architecture: Designing secure infrastructure, including firewalls, intrusion detection systems, VPN, and secure application development practices. Incident Response: Leading incident response efforts to mitigate breaches, minimize damage, and conduct thorough investigations. Data Loss Prevention: To safeguard sensitive information and ensure compliance with data protection regulations. Security Awareness Training: Educating teams on best practices to cultivate a security-first culture. I am proficient in a range of security tools and technologies, including Firewalls, VPN, SIEM, endpoint protection, Data Security and encryption solutions, and I continuously stay updated with the latest trends and emerging threats in cybersecurity. My goal is to help businesses secure their assets, ensure compliance, and foster trust with clients through effective security measures.Network SecurityCloud SecurityData ProtectionData Center OperationsSOC 2DockerLinux System AdministrationFirewallVPNSecurity TestingDatabaseInformation SecurityAmazonWindows Server - $50 hourly
- 4.9/5
- (137 jobs)
Over 25 years of progressive experience in computer networks field. Comprehensive network technology knowledge in designing, implementation, administration and support. In-depth knowledge of deploying IP protocols and troubleshooting. Experienced in layer 2 switching and 3 routing, security and wireless. Extensive experience in Planning, Implementation, Configuring, Testing and Troubleshooting of networking systems. Competent in handling escalating problems. 7+ years as a Cisco Networking Academy Manager and Instructor. In-depth knowledge of major server OSes. Exceptional analytical abilities. Confident, polite and patient.Network SecurityPfSenseProxmox VEWireless Network ImplementationVPNWireless SecurityUbuntuCisco Certified Design AssociateOpenVPNServer VirtualizationLinux System AdministrationCisco IOSNetwork DesignCisco Certified Network Associate - $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 SecurityNetwork EngineeringSecurity EngineeringVulnerability AssessmentInfrastructure ManagementSystem DeploymentVMware AdministrationCitrixCloud ArchitectureCitrix HypervisorCitrix Virtual Apps & Desktops - $125 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.Network SecurityFirewallTechnical WritingIT ConsultationSystem ConfigurationTroubleshootingSystem AdministrationInformation SecuritySecurity EngineeringSystem SecurityIT ManagementIT Compliance AuditNetwork Engineering - $80 hourly
- 5.0/5
- (11 jobs)
Passionate IT professional offering more than 15 years of experience in design, deployment and troubleshooting of medium to large scale fast converging optimized and scalable multi-site enterprise data center and campus network infrastructure, including 7+ years of leading successfully performing teams. Proven experience in transforming enterprise network infrastructure into a highly available, secure, and reliable environment. Adept at multitasking to achieve individual and team goals. Strong problem-solving skills, fast learner & excellent communication skills. The buck stops here.Network SecurityWireless Network ImplementationWireless CommunicationWiresharkCisco Certified Network ProfessionalWiFiPalo Alto FirewallsCisco IOSCiscoCisco Firepower Threat DefenseJuniperCisco ASANetwork AdministrationCisco MerakiFortinetVPNUbiquiti - $130 hourly
- 5.0/5
- (37 jobs)
I specialize in building, designing and troubleshooting network infrastructure and transport. Wired, Wireless, LAN, WAN, VPN and Security solutions to fit your business needs. I have been employed as a Network Engineer for Snapchat, Fortinet, Nuance Communications, Port of Seattle, Infospace, and Costco Wholesale. As a consultant I have worked on network and firewall projects as part of the AT&T consulting team for the State of Texas, New York Yankees and HP Enterprise. As a Professional Services Engineer for Fortinet, I deployed hundreds of Fortinet appliances for a large-scale IPSec VPN deployment for the State of Washington. Vendor Certifications include: Cisco CCNA, CCNP, Fortinet NSE4, NSE5, CWNA, Ekahau ECSE Design, Juniper JNCIA, and ITIL Foundations.Network SecurityGoogle Cloud PlatformF5, Inc.Cisco Certified Network AssociateWireless CommunicationNetwork DesignUbiquitiExtreme NetworksNetwork EngineeringFortinet - $40 hourly
- 5.0/5
- (30 jobs)
I'm an experienced network, cloud and system engineer. Networking : - Design, configurations, implementations, maintenance ; switches, routers, firewalls, monitoring systems, Cisco ISE, Wifi Controllers and APs, VoIP infrastructures - Vendors : Cisco, Checkpoint, Fortinet, PfSense, Mikrotik, Ubiquiti (Unifi),Watchguard, HP, DELL, - Projects : Edge and internal firewalls, DMVPN solutions, Core and DC infrastructures, Wifi Systems, Bank VoIP system (CUCM, IVR, CUBE, Call Center solution) etc - Certifications : Cisco (CCNP Security & Enterprise & VoIP), CCNA CyberOps, Checkpoint CCSA and CCSE Cloud : - Azure infrastructure using portal or automation via Terraform - Resource Group, VNETs, Azure AD, Storage Accounts, VMs, VMSS, private link, VPN site to site and point to site, Enterpise Apps integration, IAAS, PaaS, etc - Intune (MDM), Microsoft365 (Exchange Online, Teams,OneDrive) - SD WAN network solution on cloud (Aviatrix) - Certifications : Azure Administrator Az-104, ACE Associate (Aviatrix) Systems : - Windows Server (AD, file server,DHCP, DNS, GPOs, user and groups, persmissions etc) - Linux (Ubuntu & CentOS) - Veaam Backup solution, VMWare, Proxmomx, Hyper-VNetwork SecurityFortinetPfSenseWindows ServerCisco WLCCisco ISECisco ASACisco RouterDockerCheck PointNetwork DesignLinux System Administration - $20 hourly
- 4.9/5
- (50 jobs)
I am Working with Cyberoam/Sophos products. Having 5+ Yrs of hand on Exp. for Cyberoam/Sophos product. Certified Sophos Support Engineer, Cyberoam Certified Engineer as well as working as a Customer support representative for the E-commerce Shopify dropshipping website. 1. Working with Routing, Creating policy Configuring IPSec VPN, SSL VPN, PPTP VPN, L2TP VPN. 2. IPS policy. 3. Spam filter 4. Authentication service on Cyberoam. 5. Depth knowledge in VPN technology. Trained on AWS with skill of create and maintain instances, Assign a role to user, VPC, DNS, Cloudwatch, etc. Troubleshooting, installing, configuring software System Back up & Recovery Using Symantec Ghost Server Back up & Recovery. DNS, DHCP & Active Directory Configuration. OU & GPO Creation. Firewall Configuration & Creating Policy Printer installation Remote Support Feel free to contact me on any related project. It would be my pleasure to do work with you. thank you so muchNetwork SecurityTechnical SupportMicrosoft OfficeShopifySophos Sophos UTMCustomer ServiceCustomer SupportNetwork MonitoringFirewallVPN - $25 hourly
- 5.0/5
- (13 jobs)
Hello, I am Richard Reyes, a network and security engineer based in Philippines, Manila. I have six years of professional IT experience and have worked on enterprise networks that serve thousands of users. When we work together, we share the same goal, maximizing the productivity of your network to keep your business operations going securely for your valuable data. Specialization: IPsec and SSL VPN implementation and troubleshooting Fortigate firewalls administration - DHCP, NAT, DNS, AP, TCP/UDP/IP Sophos firewalls administration - DHCP, NAT, DNS, AP, TCP/UDP/IP Advanced troubleshooting & traffic analysis Enterprise network design SD-WAN implementation High Availability Fortimanager - Policy/Device configuration and propagation, VPN management Fortianalyzer - Network security logging, analysis, and reporting Fortiswitch - Device configuration, and propagation. Professional qualifications : Fortinet Certified Network Security Professional (NSE4) Cloudpath 5.1 SE and Partner Assessment Accreditation Exam Certified Bosch Security Camera Expert Malware Assessment Training and Certification Sophos Firewall Support Certified for XG/UTM Sophos Firewall Architect Certified for XG/UTM Sophos Firewall Engineer Certified for XG/UTM Sophos Central Email Engineer Certified Sophos Wireless Access point Certified Engineer/Support You can send me initial information regarding your project and requirements. After I analyzed it, Let's discuss the work around.Network SecurityFortinetSophos Sophos UTMHP Network Management CenterNetwork AdministrationSonicWallWireless Network ImplementationFirewall - $10 hourly
- 4.0/5
- (4 jobs)
* I was covid positive and couldn't reply to messages. Because of that I have a one 3.7 review. I have 8+ years s experience as a Senior Systems Engineer. My Technical Skills: Experience in implementing, configuring, and administering Server and Network (Wired/Wireless) hardware, Microsoft Windows (Server, Desktop), Linux (CentOS, Ubuntu, Oracle Linux, RedHat) operating systems and services and BASH, Powershell Scripting. Hands-on experience in Cisco (Nexus,IOS), Palo Alto, Checkpoint and Juniper, Network Devices and Firewalls. Hands-on experience in virtualization and cloud technologies including Hyper-V, VMware VSphere, AWS, Oracle Cloud and Scaleway. Hands-on experience in administering Avast Business, McAfee EPO, Kaspersky, Desktop Central and Nexpose Vulnerability Assessment tool.Network SecurityAnsibleNetwork DesignServerCisco Certified Network AssociateWeb HostingFirewallNetwork AdministrationEmail SecurityVMWareAmazon Web ServicesSystem AdministrationDNSWindows Server - $125 hourly
- 5.0/5
- (20 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 SecurityCisco RouterCisco Certified Network ProfessionalRoutingFirewallPalo Alto FirewallsCisco IOSCiscoDHCPCisco Certified Network AssociateNetwork EngineeringSSLNetwork EquipmentNetwork AdministrationCisco Meraki - $35 hourly
- 4.7/5
- (19 jobs)
🌟Top Rated Data Scientist | 🌟Machine Learning/ Deep Learning Expert | 🌟 Full Stack Python Developer Expert Machine Learning Engineer with a demonstrated history of designing production-level ML solutions. Farhan has a Number of Years of experience in creating Data Science Solutions and creating Machine Learning Model Using Python. As a Senior Lead Developer, he has various experiences involving the development of scalable and State-of-the-Art Data Science systems and the Internet of Things. His experience is in hands-on product development and implementation of data-driven products in the Computer Vision and Natural Language Processing domain, using state of the art deep learning algorithms. He has experience working in an international environment and leading cross-cultural teams, and the ability to communicate fluently and clearly with team members, customers, and stakeholders. Farhan proposes modern and dynamic solutions to my clients for their business goals, and guide them throughout the journey to minimize the cost and maximize the output. Elderly care Robot for which he has worked to develop its brain is in trials at leading care centers in Asia and now is raising millions of dollar as Series A funding. ☑ His Work Experience includes: 💎 Full Stack Python Development (4+ Years) ✅ Machine Learning | Deep Learning ✅ Natural Language Processing(NLP) ✅ Computer Vision(CV) ✅ Time Series Analysis ✅ Data Analysis ☑ Tools & Technologies: ✅ Python Backend Development Includes: 🔸Django, Django Rest Framework, Flask 🔸RESTful APIs 🔸Integrate Third-Party APIs 🔸Social Authentications like Google, Facebook, LinkedIn. 🔸Customized Admin dashboard 🔸User management and Custom Users 🔸User authentications and permissions 🔸Payment Gateway integration 🔸Charts, Graphs, Maps, Auto E-mail sending ✅ Industries that I worked with so far: 🔸E-Learning Platforms 🔸E-Commerce Web App 🔸Portfolio/Business websites 🔸Hospital/Medical Management Systems 🔸Fitness/Sports Web App 🔸Blogging ✅Machine Learning Languages C++, Java, Python, R ✅Artificial Intelligence Skills 🔸Supervised/Unsupervised/Semi-Supervised Technqiues 🔸Classical and Deep Computer Vision Algorithm ⠀ 🔸 Natural Language Processing/Natural Language Understanding ⠀ 🔸 Edge-AI: Edge-Device Optimization, Jetson Series, Arduino, Raspberry Pi, Neural Compute Stick. ⠀ 🔸 Image Processing and Deep Learning ⠀ 🔸 Fast Neural Networks ⠀ 🔸 Artificial Neural Networks (including DNN, CNN, FCNN, RNN, LSTM, GAN, VAE, etc.) ✅Tools and Technologies 🔸 Deep Learning/Machine Learning Pytorch, TensorFlow, Keras, scikit-learn, TensorRT, Weka, mxnet 🔸 Computer Vision OpenCV, 🔸 Natural Language Processing NLTK, SpaCy 🔸Data Manipulation Pandas, NumPy, Apache Spark 🔸Cloud AI Azure Machine Learning, Azure Cognitive Services, AWS SageMaker and GCP ✅Machine Learning Techniques Gradient Boosting, Random Forest, Logistic Regression, Deep Belief Network, Decision Trees, Linear Regression, Bayesian Statistics, Autoencoders, Word Embedding, Support Vector Machine, Classification, Principal Component Analysis, Generative, Anomaly Detection 🔵🔵 Let's Connect and build the Next AI/ML or Python solution for you!! 🔵🔵 🌟 What My Clients Say about me: 🌟 🔸 I needed someone to implement a very specific functionality on a website using Django. Farhan did a great job from the very beginning: he asked for a call to go through the requirement, we agreed on a delivery date and we stayed in touch during the development. After Project delivery, a few tweaks were needed and once again Farhan proved to be an excellent developer, providing reliable support and delivering a quality product. 🔸 Fast and helpful service, got what I asked for, and support to set it up. Would work with him again and again. Saved my $$$$, thank you. 🔸 Very professional approach to Creating a Machine Learning Model, clear from the first call I had with him. He was quick to understand my requirements and he correctly implemented them.Network SecurityTrading StrategyPrompt EngineeringArtificial IntelligenceGPT-3Machine LearningPyTorchDeep LearningTensorFlowNeural NetworkPythonNatural Language ProcessingAzure Machine LearningAmazon SageMakerComputer VisionData Science - $57 hourly
- 5.0/5
- (20 jobs)
I'm Sera, a seasoned Reverse Engineer and API Expert. I thrive on tackling challenging tasks and take pleasure in guiding fellow developers to overcome project hurdles. Drawing upon my extensive expertise, I offer top-tier solutions and excel in managing intricate assignments. My interventions have consistently delivered significant time and cost savings for companies, leveraging API endpoint solutions across diverse development challenges. My strength lies in crafting tailored solutions vital for client triumph. By deeply understanding objectives and business requirements, I develop customized solutions that surpass expectations, propelling businesses to new levels of success. If you seek a developer who combines technical prowess with a genuine dedication to your success, let's collaborate and make it happen. Regards.Network SecurityLinuxVideo StreamAutomationData ScrapingEmail DeliverabilitySMTPNetwork MonitoringPenetration TestingReverse EngineeringEncryptionAPI TestingAPI DevelopmentWeb APIAPI - $50 hourly
- 4.9/5
- (36 jobs)
HI!! I am Virtual CISO, Cyber Security, Cyber defense, Ethical Hacker, expert I am prompt engineer working to create and maintain AI-generated content in Spanish. I love finding creative and innovative ways to ensure the perfect prompts are provided for our users I am a computer security scientist with an intensive hacking background. I do have a Msc in computer engineering I am working for severals Internationals Enterprises where I do intensive researches in Penetration Testing, Vulnerability managements, Technological Risk, Security Architecture and Forensic I am Professional with over 20 years experience in the area of information and communications technology, including 15 years of experience in networks and security infrastructure Analytical skills to solve problems, ability to work with new technologies, adaptable to any situation, pro-activity and motivation to individual and team achievements Self-management capacity of the learning process to successfully assume the continued improvement of my functions My passion is to help SMBs gain a fighting chance in an increasingly hostile information security threat environment by providing part-time vCISO services. Whether PCI , GDPR, NIST, ISO27000 and any other Security Standards gap analysis, information security risk assessments, audit remediation, strategic planning, interim CISO services, or anything else information security related, I offer you my vCISO Services, Information security ISO27001 consultancy and Policies Documentations With the following responsibilities and functions; Recommend modifications to application development, database design, networking, or infrastructure architecture with the goal of complying with internal information security policies and standards. Monitoring emerging products, technologies or best practices that will improve security for the organization and its stakeholders. Perform security audits, identify security gaps, and develop and implement risk mitigation solutions. Design and develops the organizations overall information security architecture to protect its information assets. Perform work and recomedations in relation to network, data, application and or cloud security and liaises with other areas of IT in the dissemination of this information to counter threats and internal and external vulnerabilities. Perform advanced research and identifying information security products, services, and trends, testing security configurations, and developing configuration architectures. Stong experience in Information security and Network Security: • Design Network security architecture • Design Cloud Security architecture ( AWS and Azure) • IT Vulnerability Assessment • API Security Evaluation • Cloud Security Assessment • Active Directory Security • Network and Web Application/Mobile Penetration Testing • Threat Hunting, • Red Team Program Development/Red Team Attack Simulations • Open Source Intelligence (OSINT) Gathering • IT Risk Management • Incidents Response management • Technical Writing; Information Security Policies,: ISO2700, NIST, HISPAA, PCI • Working experience of supporting Cyber Security tools such as, McAfee SIEM, Ms-SENTINEL, CISCO IPS, Citrix NetScaler, TrendMicro endpoint. Checkpoint Firewall, Bluecoat, AWS WAF, AWS Shield and AWS Firewall Manager, antivirus, CYNET security endpoint • Kali Linux Toolkit, Qualys, Nessus • MS-365 security, Defender for Cloud Strong experiece in IT Support and admin • Technical Supports Windows Server • Active Directory management • Technical Supports Azure Cloud • Technical Supports Intunes • Technical Supports Windows 10 and 11 • Technical SupportsMS- 365 • Technical writing IT Procedures,Network SecurityMobile App TestingAmazon EC2BlockchainISO 27001Cloud SecurityVulnerability AssessmentOffice 365Information SecurityMicrosoft AzureCybersecurity ManagementPenetration TestingNessusWordPressEthical Hacking - $35 hourly
- 4.8/5
- (49 jobs)
I'm a Security Specialist, with +15 yr of experience in the security field and +20 yr in system administration (Linux, AIX, BSD and Windows) on banking, education and R&D sectors. Feel free to get in touch if you need: * Security infrastructure administration or advice * Security Audit & Pentesting * Linux/Windows/AIX system administration or server troubleshooting and LAMP/LEMP stack deployments and fine tunning. I will be glad to collaborate on your project.Network SecurityAWS Systems ManagerWindows AdministrationWireless SecuritySecurity EngineeringSecurity InfrastructureLinux System AdministrationInternet SecuritySecurity AnalysisInformation Security - $99 hourly
- 4.8/5
- (42 jobs)
I'm an experienced Windows, iOS and Android Reverse Engineer. I have a lot of experience in reversing applications, games, programs and systems. With +10 years of hands-on experience in Reverse Engineer and Malware Analysis, I am also a cybersecurity expert with experience in cybersecurity research and development at a world-class R&D laboratory in the field of Cyber Operations. In this work, I gained experience in network traffic analysis, malware analysis and cryptography. My main skills: * Extract Data, Code, Algorithms, Signatures and Network Addresses from Android Apps, iOS App and Windows App * Deep expertise in Smali bytecode * Decompile Apk File and convert to full source code * Application Modification for Add, Remoave, Modify Functionalities * Bypass SSL pinning. Interception, Modification and Analysis of Network Traffic * Creation of Private API for a Applications or Programs * Decompilation, Debugging, Analysis and Modification of Native Android Libraries * Know arm and x86 assembler * Expertise in analyzing sophisticated malware using tools like IDA Pro, Ghidra, and x64dbg. * Have Experience in Reverse Unity, Cocos, Kony Android Apks * Debuggers, Disassemblers with Windows x86 and x64. * Creating Scripts/Plugins for Deobfuscation * Reversing iOS, Android Apps and Developing Tools to Automate * Server solutions (including serverless solutions) * interaction with BLE devices (BLE 4, BLE 5 Coded Phy) * Mobile apps Reverse Engineering (decompilation, creation of mods, API extraction, decryption) * Android APK patching and Binary Patching, Binary Decompilation * Root Detection and Emulator Detection Bypass * Network Traffic Analysis and Malware Analysis * Deobfuscation and Unpacking Applications * Web-Scraping/Crawling and Automation Expert * Browser Automation & Testing with Leverage Selenium, Multilogin, and Puppeteer * Data Analysis & Manipulation * Advanced Web Scraping Techniques external APIs, uncovering hidden functionalities and potential enhancements through reverse engineering.Network SecurityC++CCryptographyPythonEthical HackingEmbedded CEncryptionSecurity EngineeringAssembly LanguageWeb Application SecurityPenetration TestingAndroid App DevelopmentJavaAndroidReverse Engineering - $30 hourly
- 5.0/5
- (26 jobs)
I design and develop network routing, monitoring and security solutions using DPI (Deep Packet Inspection) with throughput ranging from 100Mbps to 1.2Tbps, such as Switches Routers NextGen Firewalls ISP Gateway Monitoring Radius CGNAT Brokers IDPS VPNs Load Balancers TCP, UDP, DNS, HTTP, Web Proxies SOC/NOC Solutions SDWAN Client/Server secure communication I have 10+ years of industrial experience in DPDK VPP AF_XDP ntop nDPI Layer 7 SSL Application detection and blocking Sockets LibNetFilter LibNFQueue Iptables TCPdump TCP/IP stack Network Automation Programming Languages: C/C++, Go, Python, Bash PHP, DjangoNetwork SecurityKernelTCP/IPLinuxClient-Server FrameworkOperating SystemC++Back-End DevelopmentPOSIXC ShellOpen SourceFirmware ProgrammingBashCUnix Shell - $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 SecurityFortinetFortiGate FirewallMicrosoft VisioNetwork DesignNetwork AnalysisNetwork Engineering - $30 hourly
- 5.0/5
- (21 jobs)
With hands-on experience in penetration testing, I specialize in network, systems, mobile applications, APIs, and web application security. My focus is on identifying and mitigating vulnerabilities to ensure robust and secure systems. Beyond my professional work, I actively explore malware analysis and digital forensics, staying updated on the latest techniques used by APT groups. I’m also passionate about CTF events, where I’ve earned top positions in national and international competitions. Competing in CTFs has refined my abilities and reinforced my determination to stay ahead in the rapidly evolving cybersecurity field. If you’re looking for expert advice on securing your systems or want a thorough security assessment based on the best industry practices, I’m here to help. Let’s work together to make the internet a safer place!Network SecurityMalware RemovalWeb App Penetration TestingInformation SecurityWiresharkNessusMetasploitPenetration TestingKali LinuxPythonInternet SecurityNetwork Penetration TestingLinuxVulnerability AssessmentDigital Forensics - $50 hourly
- 5.0/5
- (30 jobs)
Embark on a digital journey led by a Network and Security Engineer with Cisco CCNP Enterprise and Security certifications. My proficiency extends beyond Cisco, showcasing excellence in Ubiquiti, Aruba, HPE, Fortigate, pfSense, Juniper, Palo Alto, and Mikrotik technologies. 🚀 Elevating Networks Beyond Limits With over 3 years of hands-on mastery, I specialize in designing, implementing, and delivering bespoke network solutions, creating a tapestry of successes that transcend expectations. My passion for security resonates in the melody of certifications—CCNP Enterprise, CCNP Security, and Fortinet NSE4—each note composed during a 3-year crescendo in the networking realm. Within the Cisco realm, my expertise unfolds as a troubleshooter, designer, implementer, and operator, showcasing a virtuosity in routing, switching, wireless, and VoIP technologies. 🌐 Specialties: • Proficiency in diverse VPN technologies: IPsec, SSL, L2TP, PPTP, OpenVPN • Mastery of routing technologies: RIP, OSPF, EIGRP, ISIS, BGP • Expertise in switching technologies: VLANs, STP, VTP, Etherchannel, HSRP. VRRP, GLBP • Design and implementation of medium to large-scale enterprise networks. • Troubleshooting malfunctions of network hardware and security systems. 🛠️ Hands-On Experience: • Cisco: ISR 1000, 4000, ASR 1000, Nexus 9200, 9300, 9500, SG- 300, SG-350, SG-500 ASA 5505, 5506-x Cisco Umbrella, Meraki, FMC, FTD, Duo, AMP for Networks • Palo Alto: PA-400 series, PA-1400 series • Fortigate: 40F, 60F, 80F, 100F. • Juniper: EX2300, EX3400, EX4300 • HPE: Procurve 2650 and 2910 • Aruba: 8325, 6200F • SonicWall 🏆 Distinguished Certifications 🏆 CCNP Enterprise: Mastering the art of enterprise networking. 🛡️ CCNP Security: Ensuring the shield of security stands unyielding. 🚀 Fortinet NSE4 v7.0: Commanding the fortresses of network security. 🕵️ CCNA CyberOps: Unraveling the mysteries of cyber operations. 🌐 CCNA: Pioneering the fundamentals of network excellence. 🤖 Juniper JCIA: Crafting pathways in the Juniper landscape. 🌐 Aruba Mobility (ACMA): Dancing through the spectrum of wireless mobility. 🔄 Aruba Switching (ACSA): Mastering the artistry of network switching. 🌐 Palo Alto PCNSA: Guarding the gateways with Palo Alto expertise. Let's sculpt your network masterpiece together. Ready to redefine connectivity?Network SecuritySecurity EngineeringSophos Sophos UTMPfSenseFirewallVPNCiscoPalo Alto FirewallsCisco Certified Network ProfessionalCisco Certified Network AssociateNetwork EngineeringUbiquitiCisco MerakiNetwork AdministrationFortinet Want to browse more freelancers?
Sign up
How it works
1. Post a job
Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.
2. Talent comes to you
Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.
3. Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
4. Payment simplified
Receive invoices and make payments through Upwork. Only pay for work you authorize.