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Rating is 4.9 out of 5.
4.9/5
based on 1,535 client reviews
  2. Development & IT Talent
  3. Network Administrators
  4. (Current) VPN Specialists
  • US$150 hourly

    • 5.0/5
    • (57 jobs)
    Versed in a wide-range of IT topics including, but not limited to: - Enterprise Network Monitoring with Zabbix - Network security/implementation utilizing FortiGate/FortiManager/FortiEMS/FortiAnalyzer/FortiAP/FortiSwitch (NSE 4, NSE 5, NSE 7 Certified) - IPSec/SSL VPN - AWS Site-2-Site VPN I have a passion for learning new things and solving Information Technology challenges. The majority of my career experience has been as a Network Security Engineer for a managed security service provider for the financial industry in the United States.
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    OSPF
    Zabbix
    Fortinet
    Linux
    Network Equipment
    C#
    Network Monitoring
    Firewall
    Internet Protocol Security
  • US$95 hourly

    • 5.0/5
    • (33 jobs)
    A result-driven Senior Network Professional with over 15 years' experience in Routing, Switching, Security and Network Design for corporate and enterprise networks.
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    Computer Network
    Virtual LAN
    Amazon Web Services
    Cisco Meraki
    Network Equipment
    Ubiquiti
    Network Design
    Network Engineering
    Palo Alto Firewalls
    Cisco Router
    Fortinet
    Mikrotik RouterBOARD
    Firewall
    Cisco ASA
  • US$50 hourly

    • 4.8/5
    • (263 jobs)
    With over 16 years of experience in cloud computing, I am a seasoned professional with a strong skill set in AWS/Azure/Google Cloud, AKS, GKS, EKS, Compliance implementation (PCI/DSS, HIPPA, ISO, SOC2, GDPR), Linux system administration, DevOps, infrastructure as code using Terraform and Ansible, and CI/CD pipeline deployment. As a Cloud Computing Designer with 12+ years of experience, I specialize in AWS/Azure solutions and security architecture. My experience includes working with a range of Server OS Linux platforms, including Ubuntu, Debian, Centos, and Redhat. I have also worked extensively with Docker/K8, EKS, GKS, and AKS, as well as Compliance implementation and management, covering PCI/DSS, HIPPA, SOC, ISO, AAA, and GDPR. In addition to my proficiency in cloud servers such as AWS, Google-Cloud, Azure, Linode, DigitalOcean, Vultr, Hetzner, and Heroku, I have extensive experience in DevOps, infrastructure as code using Terraform and Ansible, and CI/CD pipeline deployment. My toolset includes Docker, Puppet, Gitlab, Jenkins, Bash, and Powershell. I am familiar with various monitoring tools such as Nagios, Zabbix, and Newrelic, and I have worked with multiple web servers, including Apache, Nginx, and IIS. My experience with SSL certificates includes working with Letsencrypt, Comodo, Symantec, Digicert, self-signed, and other SSL certificates. In addition, I have worked with email servers such as Exim, Postfix, Sendmail, Dovecot, and Cyrus-IMAP. I have also managed email deliverability using PTR, SPF, DKIM, and DMARC. My proficiency in WordPress includes installing, migrating, and troubleshooting, and I have worked with firewalls such as Linux iptables, Fail2ban, and mod_security. I am also well-versed in other application servers, including DNS, FTP, DHCP, OpenVPN, PPTP, Proxy, and Samba. Furthermore, I have experience working with Windows servers, including 2012/2016 (AD DS, DNS, DHCP, Failover, NAT, GPO, RDP, WSUS, TS, IPAM), adding to my versatility and adaptability in the industry. In conclusion, my extensive experience and diverse skill set make me a valuable asset to any organization looking to build and maintain a robust cloud infrastructure, utilizing the latest DevOps, infrastructure as code, and CI/CD pipeline deployment methodologies.
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    Docker
    Azure DevOps
    Network Security
    Git
    Windows Administration
    Security Infrastructure
    CI/CD
    Linux System Administration
    AWS Server Migration
    DevOps Engineering
    Project Management
    Cloud Engineering Consultation
    Microsoft Azure
  • US$130 hourly

    • 5.0/5
    • (49 jobs)
    With over three decades of experience under my belt as a network and security engineer, I've traversed the ever-evolving landscape of LAN/WAN network design, implementation, and maintenance. My expertise is not merely a testament to time, but also backed by credentials including Cisco CCNP (route/switch), a Cisco CCDP for network design, and a PCNSE for Palo Alto Networks. In my journey through the realm of networking, I've engaged with an extensive array of gear, from the minutest components to the behemoths, including Cisco Catalyst and Cisco Nexus switches. Additionally, I've delved deep into the intricacies of Cisco ASA and Palo Alto firewalls, sculpting security rules and configuring VPNs with precision and based on their published best practices. I am always available for consulting for short-term and long-term projects. Thank you.
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    Cisco Certified Network Associate
    Cisco Router
    Network Design
    Virtual LAN
    VoIP
    Wireless Communication
    Ubiquiti
    Cisco Certified Network Professional
    Palo Alto Firewalls
    Security Engineering
    Computer Network
    VMWare
    Network Engineering
    Cisco ASA
    Firewall
  • US$105 hourly

    • 5.0/5
    • (33 jobs)
    I am veteran IT professional with a broad range of experience. I work near fulltime (25+ hours a week) for a manufacturing company managing their infrastructure and part time honing and growing my skills in the freelance market. Please read on to see what I have to offer. A full-range IT Systems and Network Engineer and Administrator. With 21+ years of experience in a wide range of skills with a focus on project design and implementation. Equally capable of working in Windows and UNIX environments. A broad base of general IT knowledge and a constant desire to learn and add skills have provided unique insight and abilities. Experience working with many vendors specializing in medical and enterprise systems. A broad range of experience and a lasting passion for technology combined with excellent troubleshooting and research skills makes for a valuable addition to any team. Project Highlights: Private Cloud deployment, IT systems upgrades, subject matter expert. Systems/Network Administrator for public health district hospital, responsible for setup, automation, and monitoring of private cloud. Managed the transition of legacy systems to new infrastructure. Deployed and administered monitoring and management systems. Handled special projects for the IT Director testing and deploying new systems or finding solutions to long standing issues. Overhauling of existing monitoring and asset tracking systems along with transitioning existing VM’s to new High Availability “A side/B side/C remote BDR” Data Center design dramatically improving systems reliability, while reducing manpower requirements. Consultant for public health district hospital to deploy a private cloud. Deploy and configure a private cloud based on Cisco UCS/EMC VNX/Hyper-V 2012 R2 & VMWare VSPEX reference platform for a regional hospital. Worked closely with existing employees and vendors to assist in bringing the project to a successful completion. Kept on indefinitely to work on improving the existing IT systems including SNMP monitoring (WUG), Syslog, Helpdesk, security, and maintenance automation. The resulting changes improved network reliability and reduced the time and effort required for employees to manage the systems Cloud-based application development, project manager and project technical lead. Systems Administrator/Engineer for deployment of Cloud-based applications and integration with mobile and local systems. Researched, selected and integrated multiple cloud based products to form a completely integrated IT services management solution based on Autotask, N-Able, QuickBooks, StoreGrid, and Channel Online for MSP provider. The final solution handles quoting, ticketing, purchasing, billing and time management. Worked with several consultants and technicians to complete integration and training of employees saving on valuable internal labor and reducing data entry errors. Replacement of existing PACS/RIS solution with RAMSoft PACS/RIS solution Project lead for the replacement of an existing PACS RIS solution from RAMSoft. Worked with incoming and outgoing vendors along with third party vendors and outside providers to facilitate the removal and replacement of existing leased hardware. Coordinated integration of hardware and software from 11 vendors. Completing the project with minimal impact on office operations on time and within budget. HIPAA meaningful use EMR and specialty procedure management systems upgrades/deployments. Project lead for the upgrade and deployment of multiple VMWare server solutions for specialty medical offices. Solutions utilized a variety of hardware and software including Windows Server 2008 R2, 2012, Small Business Server 2008, SQL 2008 (R2), Linux, VMWare ESXi, Cisco hardware, Qnap NAS, HP Servers, and StoreGrid. Supporting various medical software solutions including GE Centricity EMR and Practice Management, GMed GGastro, Maximeyes, and more. Determining what to replace and what to upgrade significantly reducing the overall project cost while providing a solution that met their needs. Using VMWare and robust redundant servers reduced costs by more than 30% while maintaining performance and reliability. Providing the office with a complete solution including email server and BDR solution for significantly less than competitor’s estimates. Identified key performance bottlenecks and applied solutions to complete a fast and reliable solution with complete local and offsite back and disaster recovery.
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    Amazon Web Services
    Tech & IT
    VMware vSphere
    Email Deliverability
    Troubleshooting
    Cloud Computing
    Microsoft Windows PowerShell
    Microsoft Hyper-V Server
    Network Design
    Windows Administration
    Storage Area Network
    Network Administration
    Network Monitoring
    High Availability and Disaster Recovery
  • US$45 hourly

    • 4.7/5
    • (307 jobs)
    I am independent network consultant with 19 years of experience in network/security business and a CCIE Security #36569 Engineer. As a rule I only give out proposals to jobs that I know how to finish. My goal is to solve issues at hand quickly, precisely and without any delays. As a system engineer and consultant I was responsible for design, implementation and operations of setups ranging from SMB networks to large worldwide-scale deployments. Some of projects I was involved in a significant capacity (lead designer, main contractor for deployment and operations, ...) in included: - SD-WAN networks buildup and operation for two global, publicly traded corporations - Network buildup, optimization and operation for SMBs and mid-range businesses - Building infrastructure for several public VPN providers - Design and implementation MPLS Core infrastructure spanning up to 100 power plants - PCI Tier4-certified payment gateway infrastructure for national toll systems
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    Linux System Administration
    Cisco Certified Internetwork Expert
    Palo Alto Firewalls
    Cisco Router
    Network Administration
    Network Security
    Cisco Meraki
    Zabbix
    Cisco ASA
  • US$50 hourly

    • 4.8/5
    • (50 jobs)
    A dedicated VPN developer with 8+ years of experience in the VPN industry serving global VPN brands including Symlex VPN, Start VPN, Noon VPN, Vava VPN, etc. Providing VPN solutions for Android, iOS, macOS, Windows, and other major operating systems, along with protocol expertise in OpenConnect, OpenVPN, WireGuard, & Shadowsocks, VMess, VLESS, IKEv2, and IPsec. ✅ Top-Rated Plus Upwork Contractor ✅ 100%+ Job Success Rating ✅ 90% Above Re-hire Rate ✅ 108+ Companies Served ✅ Core Expertise: VPN App Development (iOS, Android, Windows, macOS, FireTV) ✅ White-Label VPN (Stand Alone Solution with Source-Code) ✅ VPN Protocol Expertise: OpenConnect, OpenVPN, WireGuard, Shadowsocks, VMess, VLESS, IKEv2, and IPsec. ✅ Customizable VPN Admin Panel ✅ iOS, Android, Windows, MacOS, TV, Browser (With in-app purchase) ✅ VPN App Development in both Native and Cross-platform ✅ Fullstack Web App Development (Laravel - PHP - MySQL- Vue JS- React JS) ✅ Database: MySQL ✅ Website Development Mobile Application Development: iOS: Objective-C, Swift, SwiftUI Android: Java, Kotlin, Composer Cross-Platform: Flutter, React Native, Ionic Desktop Application Development: macOS: C++, Swift Windows: C++, .net (Dotnet) Web Application Development: - Laravel Framework - Codeigniter Framework - WordPress - MySQL Website Development: - WordPress - Laravel - Vue.js -HTML/CSS VPN Technology Expertise: - OpenVPN (Android, iOS, Windows, macOS) - OpenConnect (Android, iOS, Windows, macOS) - WireGuard (Android, iOS, Windows, macOS) -Shadowsocks (Android and iOS) Custom Project Development Experiences: -VPN Client APP (Android, iOS, Windows, macOS) -White Label VPN with Source Code -VPN Admin/Management Portal
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    Laravel
    Android
    Android App Development
    SQL
    Vue.js
    PHP
    iOS Development
    Objective-C
  • US$59 hourly

    • 5.0/5
    • (82 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). * Routing & Switching and Wireless Technologies: Cisco, Mikrotik, Juniper, FS, Arista. * Security: Cisco, PaloAlto, Meraki, FortiNet, Ubiquiti, VMware MDM. * Datacenter, Cloud Computing, Cloud Native, Virtualization & HCI Solutions. * Public Cloud: Design, Setup & Administer Tenants on AWS, Azure. * Micro-segmentation & Containerized Applications: Docker, Kubernetes. * Private 5G Networks: Azure Private 5G Core. * 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.
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    Server & Virtualization Software
    Fortinet
    MikroTik
    Cisco Meraki
    Network Security
    Palo Alto Firewalls
    Network Design
    Network Monitoring
    Network Engineering
    Python
    Information Technology
    Cisco Certified Internetwork Expert
    Cisco ACI
    Software-Defined Networking
    Cisco
  • US$40 hourly

    • 4.9/5
    • (105 jobs)
    Hello! I am Radion, a highly skilled network engineer with over 10 years of experience in the design, implementation, and management of complex network systems. I have a proven track record of delivering secure, efficient, and reliable solutions for a diverse range of clients. Expertise: Network Design and Implementation: I specialize in creating scalable network infrastructures, ensuring robust and reliable performance: Routing Protocols: Extensive experience with BGP and OSPF, focusing on optimal routing and network reliability. Switching and VLANs: Proficient in configuring VLANs for efficient traffic management and enhanced security. Network Security: Security is integral to my approach, ensuring data protection and network integrity: Firewall Management: Skilled in configuring firewalls on MikroTik, Cisco, and Fortigate devices to safeguard against threats. VPN Configuration: Expert in deploying secure VPNs (PPTP, L2TP, IPsec) for secure remote access. Systems Administration: Windows and Linux: Proficient in managing Windows Server and Ubuntu environments, ensuring seamless operation and minimal downtime. Automation: Utilize scripting to automate tasks, increasing efficiency and reducing manual errors. Key Skills: Protocol Expertise: In-depth knowledge of IPoE, DHCP, DNS, TCP/IP, and their practical applications. Troubleshooting: Exceptional problem-solving skills, with a systematic approach to diagnosing network issues. Network Monitoring: Proficient with tools for monitoring network performance and addressing issues proactively. Certifications: MikroTik: MTCNA, MTCRE, MTCEWE, MTCTC Ubiquiti: UNS, UEWA RIPE: Certified for BGP database integration Why Choose Me? Client-Centric: I focus on understanding and exceeding client expectations with tailored solutions. Proven Success: My Upwork profile features successful projects and positive client feedback, particularly on BGP and network design tasks. Continuous Improvement: I am committed to staying updated with the latest industry trends and best practices. Past Projects: I have completed a wide range of projects, from small businesses to large enterprises, each tailored to meet specific requirements. Please refer to my portfolio for examples of past work, showcasing my ability to manage complex network configurations. I am passionate about helping businesses leverage technology to achieve their objectives. Let's discuss how I can support your network needs. Feel free to contact me to schedule a call. Thank you for considering my profile. I look forward to the possibility of working together.
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    Multiprotocol BGP
    Ingress Filtering
    Mikrotik RouterBOARD
    OSPF
    MikroTik RouterOS
    Fiber Optics
    PfSense
    Firewall
    Fortinet
    MikroTik
    Zabbix
    Ubiquiti
    Network Design
  • US$110 hourly

    • 5.0/5
    • (61 jobs)
    Experienced network engineer that has embraced the cloud and helped organizations large and small. I have done everything from establish VPNs to design global hybrid networks that utilize SD-WAN and direct connect. I have also designed multi-account AWS environments with least privilege cross account access via IAM users and SAML identity providers. I hold over 10 AWS certifications including Solutions Architect Professional, Advanced Networking Specialty, and Security Specialty. I am passionate about learning new things, expanding my existing knowledge, and sharing my knowledge to help others effectively utilize technology.
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    Cisco Router
    Cloudflare
    Linux System Administration
    OpenVPN
    Amazon GuardDuty
    Oracle Cloud
    Bash Programming
    Firewall
    Amazon Web Services
    Python
    Cisco Meraki
    Network Engineering
    Ubiquiti
    Virtualization
  • US$70 hourly

    • 5.0/5
    • (254 jobs)
    Proficient in Cisco , Mikrotik , Ubiqity gear etc, I offer my 10 years experience to design, implement and troubleshoot complex networks. I am a self-motivated professional with strong work ethic and productive self-starter. Participated in multiple projects, contributing in large teams, effectively co-working with other professionals,which strong team-player skills.
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    Firewall
    Ubiquiti
    SSL
    Amazon EC2
    Network Security
    MikroTik RouterOS
    Virtualization
    Azure DevOps
    Cisco Meraki
    Cisco ASA
    Wireless Network Implementation
    VMware ESX Server
    AWS Systems Manager
    Amazon Web Services
  • US$110 hourly

    • 4.3/5
    • (19 jobs)
    Hello, I am Juhi Jaiswal, a network and security engineer based in Houston, TX. I have eight 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 AWS Cloud Networking - VPC, Security group, NACL VPC Peering, NAT gateway, Transit Gateway Advanced troubleshooting & traffic analysis  Enterprise network design  SD-WAN implementation High Availability Static and Dynamic Routing - BGP and OSPF Fortimanager - Policy/Device configuration and propagation, VPN management Fortianalyzer - Network security logging, analysis, and reporting Professional qualifications : AWS Certified Advanced Networking – Specialty - EQW2JTVLBFV4QY39 AWS Certified Cloud Practitioner - 3WD8QBXLDMR1QDKZ Fortinet Certified Network Security Architect (Enterprise Firewall) (NSE7) – FsrQayxtj0 Fortinet Certified Network Security Analyst (FortiManager and FortiAnalyzer) (NSE5) - 7m42GMOB25 Fortinet Certified Network Security Professional (NSE4) - J98CJ0U01Z Please send me a brief about your project and your requirement. If it seems like a good fit, we will schedule a call to discuss it more detail.
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    Microsoft Azure
    Amazon Web Services
    Cloud Security
    Cisco Meraki
    PfSense
    Palo Alto Firewalls
    MikroTik RouterOS
    Network Design
    Ubiquiti
    Fortinet
    Network Administration
    Firewall
    Cisco ASA
    Internet Protocol Security
  • US$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.
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    PfSense
    Proxmox VE
    Wireless Network Implementation
    Wireless Security
    Ubuntu
    Cisco Certified Design Associate
    OpenVPN
    Server Virtualization
    Linux System Administration
    Cisco IOS
    Network Design
    Cisco Certified Network Associate
    Network Security
  • US$80 hourly

    • 5.0/5
    • (12 jobs)
    I have a 10-year experience in automation, networking and DevOps. Have a Juniper JNCIE-SP, JNCIE-DC, RHCA, Kubernetes, and AWS certification. I worked for a big Mobile operator and one of the largest hosting providers. Have experience in Enterprise, Data Center and Service Provider. List of technologies I have experience: Data Center EVPN, L2/L3 fabrics, Leaf/Spine architecture, VXLAN MPLS, LDP, RSVP-TE, L3, L2 VPN BGP, MP-BGP OSPF, IS-IS Multicast Routing, PIM, IGMP Switching: STP, VLANs, Link Aggregation Security: Cisco ASA, ACS, Radius
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    OSPF
    Juniper
    Multiprotocol Label Switching
    Cisco Router
    Network Administration
  • US$35 hourly

    • 4.8/5
    • (71 jobs)
    Technology Professional with experience in Data Center, Infrastructure and Network management. Specializing in the administration of Windows Server and Linux operating systems; VMWare vSphere and Hyper-V virtualization systems; And extensive knowledge in Networking, Active Directory, GPO, IIS, DNS, Microsoft Exchange, among others
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    Security Infrastructure
    Ubiquiti
    Network Equipment
    Network Planning
    Network Security
    Iptables
    Network Design
    Firewall
    LAMP Administration
    Cisco Certified Network Associate
    PfSense
    Wireshark
    Wireless Network Implementation
    Microsoft Exchange Server
    Windows Server
  • US$125 hourly

    • 5.0/5
    • (134 jobs)
    Experienced Network Engineer. Everything from Routing, Switching, WiFi, Designing, Troubleshooting. I started my career owning an Internet Service Provider and have worked in IT networking my entire career. I'm looking to expand my services by contracting projects for clients remotely. Currently working in with many network technologies at an expert level. Recent 2020 projects in: Cisco, Ubiquiti, Cisco Meraki, Many VOIP solutions, etc.
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    Network Planning
    PfSense
    Computer Network
    Firewall
    Internet Protocol Security
    Cisco Router
    Network Administration
    DHCP
    Network Equipment
    Virtual LAN
    VoIP
    Ubiquiti
    Network Design
    Cisco Meraki
  • US$55 hourly

    • 4.9/5
    • (43 jobs)
    I’ve helped companies get ISO 27001/SOC-2/PCI-DSS/FedRAMP/CMMC certifications and compliance against standards such as NIST and HIPAA. I offer 𝗠𝗢𝗡𝗘𝗬-𝗕𝗔𝗖𝗞 𝗚𝗨𝗔𝗥𝗔𝗡𝗧𝗘𝗘 to my clients against ISO 27001, SOC 2 and PCI-DSS compliance! Are your clients requesting security certifications or compliance against HIPAA, ISO 27001, SOC 2, PCI-DSS, or FedRAMP etc.? Do you want a cost effective solution for achieving and maintaining compliance? Do you want help is filling out the security assessment questionnaires and want someone to respond in a way that you are able to win the deal? Do you want surety/ confirmation that your certification project will be a success and you won't loose money over consultation? If you have already purchased a DIY compliance tool (Drata, Vanta, Thoropass/HeyLaika, Sprinto, OneTrust Compliance Automatization/Tugboat Logic, SecureFrame, and so on) but don’t have the time and energy to achieve and maintain compliance, Do you want to know and enhance your company's current security posture? MY PROFILE I have over 9 years of experience and have worked within IT GRC (Governance, Risk, Compliance), internal controls and review assurance roles within financial, telecom, fintech and banking industry. The combination of Information technology, accounting & auditing has molded me into an individual who can perform IS Audits (General Controls, Application Controls, Specialized Audits, IT policy & SOPs), IT risk reviews (Risk Assessments, BCP & DR, Risk Mitigation & Control Design), Functional Reviews & QA (Quality Assurance) Services, IT security consultancy (IS Policy & Implementation under different frameworks i.e. 27001, NIST, COBIT 5, PCI, HiTrust, HIPAA, GDPR, SOC 2, SOX) and pre-implementation & post-implementation project reviews, BRD creation by following industry best practices. I can secure your cloud environment with expertise in AWS and Azure by following security hardening best practices. MY CREDENTIALS - CISSP (Certified Information Systems Security Professional) - USA - CISA (Certified in Information System Audit) - USA - CRISC (Certified in Risk & Information Systems Control) - USA - CGEIT (Certified in Governance of Enterprise IT) - USA - SQL Fundamentals (Oracle) - CEH Certified (Certified Ethical Hacker) - Cyber security Fundamentals Certification - Kaspersky - Google Analytics - NSE 5 (Network Security Analyst) Tags: Information Security Analyst Chief Information Security Officer ( CISO ) Information Security Manager SOC Analyst SOC (Security Operations Center) Tools: SIEM, CrowdStrike Falcon, Fortinet, FortiAnalyzer, FortiGate, FortiSIEM, Stellar Cyber, Cylance, Splunk, AWS CloudWatch, Microsoft Defender (Azure), AWS CloudTower, GCP
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    Information Security Consultation
    Information Security
    Cybersecurity Management
    Security Policies & Procedures Documentation
    PCI
    Cloud Security Framework
    NIST SP 800-53
    SOC 2
    HIPAA
    Information Security Audit
    IT General Controls Testing
    Security Operation Center
    ISO 27001
    SOC 2 Report
  • US$50 hourly

    • 5.0/5
    • (159 jobs)
    I am trying to get ahead here doing some jobs; I have 15+ years of expertise. Making good installations and debugging of VOIP Devices and OS, also Setting up IP PBX gateways such as Elastix, Asterisk, Freeswitch, FreePBX, VOS3000, A2Billing, ASTPP, 3CX, OpenVBX, and Kazoo, also SMS Systems Like PlaySMS, Jasmin, and Kannel. If you give me the job, I'll make it a success 100%! 3CX certified! I have a good knowledge of: PHP, MYSQL, HTML, CSS, WORDPRESS, JAVASCRIPT, VPN, CLOUD COMPUTING, UNIX/LINUX ADMINISTRATION, WINDOWS ADMINISTRATION, HOSTING SERVERS ADMINISTRATION, UBIQUITI, MIKROTIK, CISCO, Repair of the older tube TV :).
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    VoIP
    Asterisk
    VoIP Administration
    Twilio API
    MySQL Programming
    Session Initiation Protocol
    SMS Gateway
    Database Optimization
    Network Engineering
    FreePBX
    3CX
    Linux System Administration
    FreeSWITCH
  • US$40 hourly

    • 5.0/5
    • (171 jobs)
    Have been working for 12 years in many roles which involves Linux systems administration in Cloud and traditional Datacenters, integration and troubleshooting in different type of industries. I have managed large number of bate-metals, VMs and wide range of applications/software, you name it!. AWS Certified Soltutions Architect, CCNA and Solaris 10 certified. Whats makes me different from others is my strong foundation of system administration and experience which results in quick troubleshooting and quick adoption of new technologies and protocols.
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    Email Deliverability
    Postfix SMTP Server
    MailWizz
    Mail Server Implementation
    Scripting
    FreeBSD
    AWS Server Migration
    cPanel
    Linux System Administration
    Email Marketing
    SMTP
    Virtualization
    System Administration
    Perl
  • US$30 hourly

    • 4.9/5
    • (41 jobs)
    Expert in Routing, Switching, and Firewalls, earned CCNA, CCNP, and CCIE Cisco Certs, proven expertise in Pfsense, Cisco devices & other firewalls. I have gained expert-level skills in diagnosis and troubleshooting for cloud-based and on-premise security and network equipment from Cisco, pfsense, Palo Alto, Sonic Wall, Ubiquity, Mikrotik, and many more. Expert level configuration skills in cloud deployments and SDNs such as Hetzner, GCP (Google Cloud Platform), Microsoft Azure, Digital Oceans, and AWS (Amazon web services), provided network and application security services using third-party cloud-provided firewalls/pfsense, etc I have managed and secured VM networks for multiple clients/Organisations and secured cloud-based and on-premise POS/ERP software, I also had the privilege of providing design and security expertise to a few local companies managing clouds and small data centers. I am well-versed with VPN technologies such as IPsec, dmvpn (cisco), flex, tail scale, gre, wireguard, and Openvpn for devices/firewalls such as Cisco, pFsense, Mikrotik, Openwrt, Linux, Sonic wall, and others. I have proven expertise in managing hypervisors such as Proxmox VE, HyperV, and KVM, also managed and configured cloud-managed backups with the proxmox backup server and Vaeem. I have proven expertise in Docker Containerisation (Application deployment) with docker swarm and docker-compose, Kubernetes, and Terraform. I have provided support/ consultancy to many call centers, software houses, and workspaces, including multiple small and medium organizations globally. I have proven expertise with s2s, remote, on-premise2cloud VPN connectivity, proven expertise with Zabbix configuration/monitoring/alert management, and provided state-of-the-art security with IDS and IPS such as Snort and Suricata on Linux, pfsense, and opensense. I have proven expertise with traffic filtering, torrent blocking, Quality of Service for VOIP, and user-specific bandwidth allocation through using Pfsense/opensense/linux/cisco limiters and shapers.
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    UniFi
    Docker
    Zabbix
    Ubiquiti
    Cisco
    MikroTik
    PfSense
    Proxmox VE
    Amazon EC2
    Network Security
    Firewall
    OpenVPN
    Linux
    Amazon Web Services
  • US$35 hourly

    • 5.0/5
    • (113 jobs)
    IT professional with more than 8 years of hands-on experience with: ● Cisco Enterprise Switches (2960-4500) ● Cisco SB Switches ● Cisco Routers (800-2900) ● Cisco ASAs (5505-5540) ● Juniper SRX Appliances (210-650) ● Juniper EX Switches (2200-4200) ● Site-to-Site VPN ● Remote Access VPN ● Network Monitoring ● Topology Planning I am result-oriented and always do my best to fulfill the client’s needs. I have strong practical skills in network infrastructure design and troubleshooting, as well as in configuration of different types of network devices of major vendors.
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    Microsoft Azure
    Cisco ASA
    Firewall
    Internet Protocol Security
    OpenVPN
    Cisco Router
    Junos OS
    Network Security
    Juniper
    Virtual LAN
    Network Design
  • US$75 hourly

    • 4.9/5
    • (375 jobs)
    🥇UPWORK EXPERT-VETTED🥇 I’m a Network and Security Engineer/Architect with 17+ years of experience and an Expert Vetted Freelancer on Upwork with 13,000+ hours. I specialize in high-quality solutions for complex networking and cloud infrastructure challenges. ✨𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 🏆Advanced Networking Solutions: ✅Vendors: Cisco, Juniper, Mikrotik, Arista, Dell, Brocade, Palo Alto, Mellanox, Sonicwall, Fiberstore, Sophos, Zyxel/Zywall, Quagga/Vyos, Fortinet/Fortigate, PFSense/OPNSense, Untangle, Unifi/Edgerouter/Edgeswitch/USG/Controller, Motorola/Cambium/PTP/PMP/Medusa, Aruba, Netonix, Cumulus, PRTG, Hyper-V, ESXI, ZTE, Huawei, DSLAM, OLT/ONT ✅Routing Protocols: RIP, EIGRP, OSPF, BGP, MPLS VPNs ✅Switching Protocols: RSTP, MST, VTP, Private VLANs, HSRP, VRRP ✅VPN Technologies: L2TP, PPTP, S2S IPSec, GRE, OPENVPN, Wireguard ✅Networking Standards: TCP/IP IPv4, IPv6 Planning and Implementation ✅Emerging Technologies: SD-WAN, ZeroTier 🏆Proficient in Linux systems: ✅Distributions: Ubuntu, Debian, CentOS, Fedora ✅Applications: Fastnetmon, GOBGP, Cacti, Librenms, Phpipam, Netbox 🏆Cloud Infrastructure Management: ✅AWS: Client/S2S VPN, VPC, EC2, SG, S3, RT ✅Azure: S2S/C2S VPN, VM, VNET, LB, SG, RT ✅Vultr: Compute, VPC, DC, Peering, RT 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻: 🎓Master of Sciences in Computers Engineering 🎓Industry-Recognized Certifications: 🌟Cisco: CCDA, CCDP, CCNA, CCNA-Sec, CCNP-R&S, CCNP-ENT, ENARSI, ENCORE, ENSLD, SWSA 🌟Juniper: JNCIA 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: ⏰ Every day, Monday to Sunday 02:00- 16:00 EST
    vsuc_fltilesrefresh_TrophyIcon VPN
    Network Design
    Cisco
    Microsoft Azure
    Amazon Web Services
    Multiprotocol BGP
    Sophos Sophos UTM
    PfSense
    Mikrotik RouterBOARD
    Security Engineering
    Network Engineering
    Ubiquiti
    Network Equipment
    Network Security
    Firewall
  • US$142 hourly

    • 4.9/5
    • (56 jobs)
    🥇ON UPWORK | ✌️ DUAL CCIE | 🔝EXPERT VETTED | ⭐️ PERFORMER | 💯% SUCCESS RATE | 🤝 CUSTOMER CENTRIC | 🏢UPWORK ENTERPRISE CLIENT | 🟢 AVAILABLE NOW I'm a highly skilled and experienced network consultant, holding dual CCIE certifications (#31084) in Security and R&S. With over 16 years in the field, I bring extensive expertise and a track record of delivering exceptional results. During my tenure as a Cisco Network Architect, I successfully planned, designed, implemented, and monitored networks for over 250 clients, encompassing more than 10,000 users. My role also involved leading the Cisco TAC Firewall and VPN team, where I gained invaluable experience working with over 10,000 unique live networks. With access to a fully equipped lab, I conduct thorough testing before implementing solutions in production environments. This proactive approach ensures seamless integration and optimal performance for my clients' networks. Furthermore, I have a strong passion for staying abreast of emerging networking technologies. By continuously expanding my knowledge, I can provide my clients with the most innovative and effective solutions tailored to their specific needs. In addition to my technical expertise, I have a proven ability to train and mentor Cisco engineers. Many of my former mentees now hold leadership positions within Cisco's TAC teams, a testament to the quality of my guidance and instruction. If you have any questions or require assistance with your networking needs, please feel free to reach out. I'm committed to delivering top-notch service and helping you achieve your goals. Let's connect and explore how I can contribute to your success. Following are my area of Expertise: 1. SD-WAN / Viptela 2. Cisco ASA / Firepower 3. Cisco APIC / ACI 4. Cisco DNA Center 5. Cisco Duo 6. Cisco Firepower 7. Cisco Secure Endpoint 8. Cisco Anyconnect VPN 9. Cisco ISE 10. Cisco Umbrella & Cloudlock 11. Cloud Email/Web Security 12. Cisco Anti Malware Protection (AMP) 13. Web Security Appliance 14. Email Security Appliance 15. Cisco Stealthwatch (Secure Analytics) 16. Cisco IP Telephony / Video Conferencing 17. Nexus Switch 18. Cisco Flexpod 19. Cisco Hyperflex (HCI) 20. Cisco Intersight 21. Cisco UCS 22. Cisco Telepresence 23. Microsoft Azure 24. Amazon Web Services 25. Cyber Security 26. Managed Services Provider (MSP) 27. Network Designing 28. Network Implementation 29. Network Optimisation 30. Microsoft O365 31. Cisco Thousandeyes 32. Cisco Secure Client 33. 1000 eyes 34. RingCentral #SDWAN #Viptela #DNACenter #APIC #SDN #ISE #IdentityServicesEngine #Firepower #CiscoUmbrella #EmailSecurityAppliance #WebSecurityAppliance #CloudWebSecurity #ciscoasa #Meraki #Stealthwatch #CUCM #BE6K #BE7K #CallManager #VPN #ASA #CallManagerExpress #UCCX #UCCE #Telepresence #IPCameras #ASR1K #ASR9K #NexusSwitches #PrimeInfrastructure #IPTelephony #SoftwareDevelopment #NetworkDesigning #Monitoring #SecurityInfrastructure
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    Cisco Router
    Cisco CallManager
    Cloud Security Framework
    Cisco Certified Network Associate
    Cisco ASA
    DevOps
    Computing & Networking
    Data Center Migration
    Firewall
    Cisco ACI
    Cisco Certified Internetwork Expert
    Microsoft Azure
    Network Engineering
    Microsoft Active Directory
    Cisco Meraki
  • US$150 hourly

    • 4.7/5
    • (122 jobs)
    I have over 20+ years 🏅 of experience in Cloud, System, Network, and Security Administration. My primary focus is on first understanding business objectives and then providing technical solutions. Communication and customer satisfaction are my top priority with every project. 👈👈👈 You are contracting someone who is an expert in multiple areas. Many projects start with an idea of what the problem is, only to find out it is something else. You won't have to go find another expert in that area to get the job done. 🏆🏆🏆 🌟 I have worked with clients of all sizes and all industries 🌟 ✔ MSPs ✔ Government ✔ Insurance ✔ Education ✔ Dallas Cowboys Football Stadium 🌟 Here are my core competencies 🌟 ✔ Server Administration: Windows and Linux ✔ Virtualization: VMware, Hyper-V, and Proxmox ✔ Network Administration: Switches, Routers, Load Balancers, and Wireless ✔ Cloud Administration: AWS, Azure, Vultr, OVHCloud, and Hetzner ✔ Cloud Productivity: Google Workspace and Microsoft 365 ✔ Firewall Administration: FortiNet/FortiGate, Cisco, Juniper, pfSense, Ubiquiti, Sonicwall, etc. ✔ Security Administration: Firewalls, Site-to-Site VPN, Remote Access VPN, Multifactor Authentication, and Endpoint Protection
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    Windows Administration
    Data Migration
    VMware Administration
    DNS
    Office 365
    Backup & Migration
    Cloud Security
    Google Workspace Administration
    Email Security
    Acronis
    Firewall
    Cloud Migration
    Network Administration
    SSL
  • US$35 hourly

    • 4.9/5
    • (293 jobs)
    CCSE, ITILv3 , Fortinet NSE4 CCNP R&S,CCNP Security. In the last 12 years, I have been working on various network products and have gained comprehensive experience in Cisco, Fortinet, Sonicwall, Checkpoint, HP, F5, Radware technologies. I have been involved in the design, configuration, and troubleshooting of Network products. Firewalls: Cisco ASA 5500 Series Cisco ASA 5500-X Series Cisco Firepower 2100Series Cisco Firepower 4100Series Fortigate 400F Fortigate 200F Fortigate 100F Checkpoint 5800 Appliance Checkpoint 12400 Appliances Checkpoint 12600 Appliances Sonicwall TZ Series Sonicwall NSA Series Pfsense ZTNA FortiGate ZTNA Load Balancers: F5 BIG-IP Application Delivery Controllers Radware Application Delivery Controllers Array Application Delivery Controllers Fortinet Application Delivery Controllers. Routers: Cisco, Arista, HP Switches: Cisco Catalyst Cisco Nexus N5K & N9K HP Switches Wireless Controller & Access Points: Cisco WLC, Aruba WLC Unify WLC Meraki
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    Cisco Router
    Firewall
    SonicWall
    Cisco Firepower Threat Defense
    FortiGate Firewall
    Zero Trust Architecture
    Web Proxy
    Cisco ASA
    Cisco Certified Network Professional
    Load Balancing
    Check Point
    Network Security
    Cisco Meraki
  • US$35 hourly

    • 5.0/5
    • (27 jobs)
    Below are highlights of my technical skills, feel free to discuss anything in details. Openstack PaloAlto (Certified) Puppet Ansible Terraform Prometheus Grafana Alertmanager DPDK Fast DataPlane OVS SRIOV Ubuntu/RHEL Orchestration NFV, LTE
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    Amazon ECS for Kubernetes
    CI/CD
    Palo Alto Firewalls
    DevOps
    Firewall
    Network Administration
    Network Monitoring
    OpenStack
    Prometheus
    Kubernetes
    Grafana
    GitLab
    Network Security
    Puppet
  • US$45 hourly

    • 4.9/5
    • (6 jobs)
    ITIL v4 Foundation | Azure Architect | Azure Administrator | Azure Security Specialist Houcem is a multi-faceted enterprise solution architect and administrator, with extensive expertise leading project teams in developing and implementing compatible solutions that leverage the latest technologies and apply modern architecture principles and patterns to address immediate requirements and proactively prepare for future requirements. I’ve been passionate about technology since I was 7 years old and have been fortunate enough to make a career out of my hobby! Simply put: The best man for your Job !!!
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    Kubernetes
    System Administration
    Terraform
    Service Cloud Administration
    Microsoft Azure
    Microsoft SCCM
    Azure DevOps
    Office 365
    Ansible
    Spring Boot
    Business with 1000+ Employees
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