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4.8/5
based on 1,140 client reviews
  2. Development & IT Talent
  3. Information Security Analysts
  4. (Current) Firewall Developers
  • $150 hourly

    • 5.0/5
    • (59 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
    VPN
    Internet Protocol Security
  • $150 hourly

    • 4.8/5
    • (123 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
    Cloud Migration
    Network Administration
    SSL
    VPN
  • $130 hourly

    • 5.0/5
    • (56 jobs)
    👑 Expert Vetted - Top 1% of talent on Upwork ⭐️ Top Rated - Highly rated for the work provided 🎯 100% Job Success Score 🕒 600+ hours on Upwork ✅ 30+ years of experience ✅ 50+ projects delivered here on Upwork With over three decades of experience under my belt as a network and security engineer, I've traversed the ever-evolving landscape of LAN/WAN network design, network security, firewalls, implementation, and maintenance. My expertise is not merely a testament to time, but also backed by credentials including Cisco CCNP (route/switch), a Cisco CCDP for network design, and a PCNSE for Palo Alto Networks. I am always available for consulting for short-term and long-term projects. Thank you.
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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
    VPN
  • $40 hourly

    • 4.9/5
    • (45 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
    VPN
    OpenVPN
    Linux
    Amazon Web Services
  • $60 hourly

    • 4.9/5
    • (342 jobs)
    There is some feedback: - Pavel was fantastic! My project hit a snag and I needed an FTP server configured quickly. When I couldn't complete the task myself, I asked for help. Pavel jumped in immediately and had me fixed in no time and friendly answered all my questions. This guy is a real problem solver! - Very smart when it comes to Linux systems, was able to help with our issue. - Very skilled and professional expert who solved all additional and unexpected problems with patience. He overdelivered and I can highly recommend working with him! - The problem was solved quickly and efficiently. - Pavel did a great job tracing the problem and solving it - Pleasure to work with. Skilled system administrator and network engineer with 18 years of hands-on experience. Know how to organise network in one office or in several offices connected via vpn. Unix system administrator, with a lot of experience in Linux and BSD distributions.. I have got working experience with: DNS; DHCP; LAMP-LEMP; FTP; SMTP; SNMP; ACL, firewalls and NAT; I have experience with cloud services (AWS, GCE, Vultr, DigitalOcean) and virtual infrastructure (vSphere, Hyper-V, Proxmox); I have got working experience with Monitoring (Zabbix); VoIP/IP telephony (Asterisk,FreePBX).
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    Asterisk
    DNSsec
    WordPress
    Linux System Administration
    Apache Administration
    MySQL
    LAN Administration
    Session Initiation Protocol
    Squid
    Web Hosting
    Network Engineering
    VMware vSphere
    NGINX
  • $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.
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    IT Infrastructure
    Observational Data Analysis
    Grok Framework
    Network Security
    Kibana
    Logstash
    Elasticsearch
    Apache Lucene
    Full-Text Search
    Sphinx
    Apache Solr
    MySQL
  • $110 hourly

    • 5.0/5
    • (63 jobs)
    Experienced network engineer that has embraced the cloud and helped organizations large and small. I have done everything from establish VPNs to design global hybrid networks that utilize SD-WAN and direct connect. I have also designed multi-account AWS environments with least privilege cross account access via IAM users and SAML identity providers. I hold over 10 AWS certifications including Solutions Architect Professional, Advanced Networking Specialty, and Security Specialty. I am passionate about learning new things, expanding my existing knowledge, and sharing my knowledge to help others effectively utilize technology.
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    Cisco Router
    Cloudflare
    Linux System Administration
    OpenVPN
    Amazon GuardDuty
    Oracle Cloud
    Bash Programming
    Amazon Web Services
    Python
    Cisco Meraki
    Network Engineering
    Ubiquiti
    Virtualization
    VPN
  • $40 hourly

    • 5.0/5
    • (77 jobs)
    Expert Network & Systems Engineering: VPN solutions, OpenWRT firmware customization, containerization with Docker/Kubernetes, thorough network monitoring, and resilience. Experience: Specialized in elevating server and network infrastructures, my VPN works encompass versatile use cases such as remote access, inter-office connectivity, secure client/end-point communication, and Internet access. Core Skills: - Expert in VPN Configuration and Management of various protocols - OpenWRT Firmware Customization - Cultivated expertise in a variety of networking platforms, such as MikroTik, OpenWrt, UniFi, and more - Proficient with Docker Containers and Orchestration, CI/CD pipelines Professional Philosophy: Commitment to delivering user-friendly, reliable, and easy-to-maintain solutions. Striving to demystify network challenges for clients and enable them to concentrate on their core business activities. My vision as a Network and Systems Engineer is to deliver solutions that provide seamless, efficient communication and operations for end-users. Contact me for network engineering expertise that advances your infrastructure in line with contemporary practices and business objectives.
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    Computer Network
    OpenWrt
    OpenVPN
    MikroTik RouterOS
    Linux System Administration
    Linux
    Network Equipment
    Network Engineering
    VPN
    SSL
  • $20 hourly

    • 5.0/5
    • (54 jobs)
    Based on knowledge and experience gained over the last 14 years as Technical Support / IT Support, I have developed a great expertise in many fields such as: -Windows Server2008R2/2012,2016,2019/2022 -Windows XP/Vista/7/8, 10, 11 - Microsoft application support. -Synology Administrator - Microsoft Cloud Services. -Outlook 2010/2013,2016/2019 -Kaseya administration,Patch management,Scripting,Backup applications, Patch management, Antivirus management, Advanced NOC and Kaseya (Customization, Development, Monitoring, Scripting, Patching, Backups, Reporting, Migration, Integrations and Upgrade versions) - CW Automate administration,Backup applications, Patch management, Antivirus management, Advanced NOC and Labtech/Automate (Customization, Development, Monitoring, Scripting, Patching, -Backups, Reporting, Migration, Integrations and Upgrade versions) - Cloud Technology:- Azure, AWS. -Office 365 administration -On-Premise Mailboxes migration to Office 365 -Cloud PST migration -Virtualization environments: Hyper-V, ESXi - Citrix Cloud -VMware Workstation. -VPN Configuration. -Antivirus server: Symantec Endpoint Protection, ESET NOD32 administration, Webroot, CrowdStrike, Kaspersky,Bitdefender,Sentinel antivirus. -Backup: Veeam,Shadow Protect,Symantec Backup Exec, Symantec Netbackup, Acronis, Altaro, Datto, Azure Backup. -Configure Synology NAS buffalo box, -Help Desk support. -Server Support. -Workstation Network support. -Hyper-V server Synology cloud backup
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    Windows Server
    Office 365
    Microsoft Azure
    Data Backup
    Technical Support
    VMware ESX Server
    Backup Administration
    ConnectWise Automate
    Veeam
    Network Administration
    Microsoft Active Directory
    Server Virtualization
    Helpdesk
  • $25 hourly

    • 4.6/5
    • (199 jobs)
    Hello, Thanks for visiting my profile. This is Abid Ur Rehman, Certified Asterisk Developer DCAP, VoIP Consultant, VICIDial, FreePBX SCE, 3CX v18 and v20 Certified Advanced Engineer, Elastix ECE, GoAutoDial, The SIP School SSCA, PBXWare, A2Billing, FreeSWITCH, Twilio, FusionPBX, ASTPP, Network CCNA, Windows Servers MCSE, and Linux RHCE certified expert. I graduated with a BS in Telecommunication and an MSc in Telecommunication Networks. Having 10 years of VoIP/Linux/IT/Network planning, design, development, deployment, optimization, administration, and support experience in top-notch organizations such as Telappliant Ltd., Cybergen, SCB Global, Dialer360, and Primo Dialer. Skills and Certification: IP PBX: 3CX, Asterisk, FreePBX, Elastix, PBXware MT, FreeSWITCH, FusionPBX, Issabel, VoIPOffice Bitrix24 integration with FreePBX with or without the InforUnity module and with 3CX Pro/Enterprise. SMS Blast/Broadcast using SignalWire, VoIP.ms, Telnyx, Anveo, Bandwidth.com, Plivo, Skyetel, Twilio, VoxTelesys, BulkSolutions, Flowroute, Intelepeer, and BulkVS Telecom Billing: A2Billing, ASTPP, Yeti, VOS3000, and Magnus Billing. Dialer: VoiceBroadcast, VICIDial, GoAutoDial, VICIBox Multi-Server Clustering, Dialer360, Primo Dialer IP Phones: Aastra, AND phone, Algo, AudioCodes, Cisco, Cisco/Linksys, CloudTC, Cortelco, CyberData, Digium, H-Tek, Incom, Intelbras, Konftel, Mocet, Norphonic, Obihai, Panasonic, Patton, Phoenix Audio, Polycom, Snom, Thomson, Unidata, Uniden, VTech, Xorcom, Yealink, Yealink/Dreamwave IP PBX (hardware): Sangoma PBXact UC (and FreePBX phone system), Elastix IP PBX, Grandstream UCM, Yeaster S-series, Renegadepbx-1U-Appliance-with-FreePBX, Patton's SmartNode Branch eXchange (SNBX), SwitchVox, OpenVox. VoIP Providers: USA and Canada: Twilio, VoIP.ms, Switch2VOIP, SignalWire, Anveo, Alcazarnetwork, voxbeam, Telus, RingCentral, Call Centric, Voyant (Vitelity), Nextiva, bandwidth.com, Altotelecom, FlowRoute, QuestBlue, sip.us, DIDLogic, Nexmo, Plivo, siptrunk.com, Telnyx, IDTExpress, Zadarna SMS and BulkSMS: I can write code for you to send and receive SMS using any Asterisk and FreeSWITCH server and through popular providers like Telnyx, Twilio, Bandwidth.com, VoIP.ms, SignalWire. For bulk SMS, I can setup a code with the front-end for sending bulk SMS from a CSV . UK: Fuse 2, BT, VoIPTalk, DrayTEL, Telappliant, Gamma, sipgate, VoIPFone, VoiceFlex, Voicehost, Brightstar, Yellowgrid, Gradwell, T4com Ltd, Voxbeam, and Spitfire Linux Distro: CentOS, Redhat EL, Ubuntu, OpenSUSE, Debian, Back Track (Kali Linux) Windows machines: Windows Server 2012 and 2016, Windows Desktop 11, 10, 8, 7, and XP. Cloud Platforms: AWS EC2 and LightSail, GCP, Vultr, BlueHost, HostGear, Hetzner, and Digital Ocean Hypervisor: VMware ESXi, station and player, VirtualBox, ProxMox, oVirt, HyperV, I would be very happy to assist start-ups as well as SMEs in achieving their goals and business objectives. Thank you!!
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    Twilio
    VoIP Administration
    PBX
    Full-Stack Development
    VoIP PBX
    MySQL
    A2Billing
    3CX
    Kamailio
    Asterisk
    FreeSWITCH
    Linux System Administration
    FreePBX
    VICIDIAL
    VoIP
  • $35 hourly

    • 4.9/5
    • (297 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
    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
    VPN
  • $125 hourly

    • 5.0/5
    • (730 jobs)
    Hello! I'm Tristan Curtis, a Top Rated IT Professional / Sr. Software Engineer with a passion for helping people with their technical needs. Backed with a degree in Information and Network Technology, accompanied by multiple certifications, and strengthened by extensive hands-on experience, I am well-equipped to tackle virtually any challenge you throw my way! Understanding the need for prompt assistance, I strive to be available within a moments notice, day or night. I offer a wide array of services including, but not limited to Web Application Development ▪️ Backend: PHP, Laravel ▪️ Frontend: Vue.js, JavaScript, jQuery, HTML, CSS, Sass, Bootstrap ▪️ Databases: MySQL, SQL Server, MariaDB, PostgreSQL ▪️ Specializes in: architecting complex web applications from scratch based on a provided design Web Administration ▪️ Domain and DNS support ▪️ Troubleshooting issues with Nginx, Apache and WHM/cPanel ▪️ Fine-tuning PHP FPM for optimal scalability ▪️ Installing SSL certificates and addressing renewal issues with LetsEncrypt / Certbot ▪️ Migrating websites from one hosting company to another Network Administration ▪️ Proficient in managing networks powered by the following vendors: UniFi, pfSense, MikroTik, Cisco ▪️ Expertise in deploying and troubleshooting wireless connectivity ▪️ Strong knowledge of VPN connectivity for remote access and site-to-site connections ▪️ Experience developing custom splash pages / captive portals to authorize wireless connections Desktop Administration ▪️ Experience with the following operating systems: Windows, Mac OS, Ubuntu and various other Linux distros ▪️ Virtual desktop administration utilizing VMware Horizon Database Administration ▪️ Experience with: MySQL, MS SQL Server, MariaDB and PostgreSQL ▪️ Familiarity with: Google Cloud SQL and AWS RDS Virtual Infrastructure Administration ▪️ Proficient in VMware ESXI/VMware vCenter and Hyper-V Email Administration ▪️ Setting up SPF, DKIM and DMARC for enhanced email security ▪️ Troubleshooting email deliverability issues ▪️ Seamless migration of email from one platform to another ▪️ Well versed in Google Workspace and Office 365
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    VMware Administration
    Data Migration
    Email Deliverability
    Web Hosting
    Twilio API
    Domain Migration
    MySQL
    Network Administration
    Laravel
    SSL
    PHP
    Ubiquiti
    DNS
    System Administration
  • $120 hourly

    • 5.0/5
    • (259 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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    Ubiquiti
    SSL
    VPN
    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
  • $40 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 28 years I'm working on implementation and maintenance of University of Nis WAN. Last 25 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).
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    CentOS
    Ubuntu
    System Administration
    Apache Administration
    SSL
    Let's Encrypt
    Linux System Administration
    Red Hat Administration
    Internet Security
    Cloudflare
    Zimbra Administration
    Unix System Administration
    Network Security
    Network Administration
  • $125 hourly

    • 4.8/5
    • (403 jobs)
    20+ years of experience specializing in Infrastructure and hybrid-cloud architect roles focusing on the Microsoft Azure platform as well as cloud security best practices. My technical prowess covers many different facets mostly across backend infrastructure both on-premises and cloud based. I've covered both SMB and large scale enterprise environments. I have an extensive job history of hundreds of past clients just here on Upwork across a large variety of organizations sizes and verticals. Please feel free to ask about any prior job experiences. Certifications: Microsoft Certified: Azure Administrator Associate Microsoft Certified: Azure Solutions Architect Expert Microsoft Certified: Azure Network Engineer Associate Microsoft Certified: Azure Virtual Desktop Specialty Microsoft Certified: Azure Security Engineer Associate Skill set includes but not limited to the following: Windows Server, Exchange, Active Directory, PowerShell, VMWare, Hyper-V, RHEL, SUSE Linux Exchange Online, Entra ID (Azure AD), Teams, Sharepoint Online, Onedrive, Entra ID Premium, Enterprise Applications/App Registrations (SAML), Entra ID Connect, DLP and Governance, Conditional Access, Intune (MEM) with Autopilot, Sentinel, Front Door, Azure Firewall, , Defender for Endpoint/Cloud/Identity Virtual Machines, VMSS, Azure Backup, Azure Site Recovery, Azure Blob Storage, Azure Migrate, Azure SQL, API Management, Service Bus, App Services, Functions, Azure Container Registry, Application Gateway, App Insights, Azure Virtual Desktop (AVD/WVD), Windows 365 Cloud PC.
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    Email Communication
    Microsoft Azure SQL Database
    Information Technology Strategy
    Ubiquiti
    Computer Network
    Windows Administration
    Azure App Service
    Microsoft Exchange Server
    Microsoft Azure
    VMware ESX Server
    Microsoft Active Directory
    Cloud Engineering Consultation
    Microsoft Server
  • $150 hourly

    • 4.8/5
    • (12 jobs)
    PKI Security products and solutions related Cryptography, PKCS#11, HSM, Smart Card, Multi-factor Authentication, OTP Authentication, Bio-metric authentication, Application Security, Encryption, Digital Signature, CSP, Credential Provider, solution conforming to NIST FIPS-140 level 2/3 certification, PIV, CAC, Entrust, Id-entrust, CMS solutions, MS Identity life cycle Manager, Minidriver, SSL and VPN integration, Various Identity access control and management solutions, PDF Signing on Mobile, Remote PDF signing, Personalization of NFC mifare Classic 1K and 4Ksmart card, Access authentications, Worked on solutions targeted for Desktop (Windows, Linux, Mac), Embedded Software, IOT Device solutions, Android Native Development, Cloud solutions, - Languages*:: C, C++, Java, QT, C# ,Python,Javascript, TypeScript - Operating System:: Windows, Android,vxWorks, Linux, Embedded Linux - Tools:: GCC, GDB,LLVM, LLD, Android Studio, Shell scripting, Eclipse, Visual Studio - Standards/ API:: PKCS # 11, #12 , MS CAPI, Credential Provider, TokenD, KeyChain APIs, ISO - 7816, Bluetooth / Bluetooth LE APIs, FIPS-140 level 2 & 3, KMIP specification, FIDO specifications, PCSC lite, EMV specification, Master/Visa, ANSI Standard for key exchanges, TR31 and TR34 Key blocks, PIN, PCI DSS, CCSS level 3, - OpenSource:: OpenSSL, OpenSSH, BouncyCastle (FIPS/Non-Fips) - Web Technologies:: NodeJS, Protobuffer, DJanfo, Angular, HTML, CSS, React.js, Next.js, XML, WS security - HSM: IBM CloudHSM, AWS-CloudHSM, Google Cloud HSM, Azure Cloud HSM, Thales DPoD, Thales Luna HSM, AWS-KMS, Payment HSMs, SafeNet CloudHSM, DPoD, SoftHSM, AWS Payment Cryptography, nShiled, CiperTrust, Utimaco, - Blockchain: Bitcoin and Ethereum signing with CloudHSM, BIP32 Signing, secp256k1 signing, Ethereum Signer with CloudHSM.
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    OAuth
    Windows API Development
    Blockchain, NFT & Cryptocurrency
    C++
    Java
    JavaScript
    Reverse Engineering
    NFC
    C
    Android
    Python
    Cryptography
    Application Security
    Encryption
    Information Security
    Linux
    Elliptic Curve Cryptography
  • $180 hourly

    • 5.0/5
    • (107 jobs)
    Telecommunication and Systems engineer with a focus on Cloud, Networking and Linux, experience in Infrastructure management and deployment. Deployed Private Cloud infrastructure, Datacenter Network Design for Multi-tenancy, fault-tolerant design, NIC Bonding and VRRP for High Availability. Stack: *Full virtual networking with vSwitches and vRouters *VLAN, VxLAN, GRE and Overlay tunnels *IPv6 *MP-BGP, EVPN *Firewalling *VPN/OpenVPN/IPSec/WireGuard/Site to Site and Client-Server * VPP/DPDK for 100G VPN and routing *Advanced Linux management: IPTables, Kernel modules, Virtualization, Networking. *Traffic engineering *Advanced StrongSwan IPSec tunnels, XFRM *Cloudstack with Open vSwitch *OpenNebula with Open vSwitch *OpenDaylight SDN controller with OpenvSwitch *Advanced Proxy setup with Squid/Nginx *Virtuozzo and OpenVZ *KVM and Libvirtd *RADIUS and FreeRADIUS *Pacemaker/Corosync/Keepalived HA cluster *MTLS design and implementation with NGINX *IoT gateway implementation with Raspberry Pi and 4G modems *DevOps experience with Chef and Ansible *Bash and Python scripting
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    Internet of Things
    Apache CloudStack
    Linux System Administration
    OpenVPN
    Computer Network
    Private Cloud
    Kernel-based Virtual Machine
    System Administration
    Ubuntu
    Network Security
    Linux
    Internet Protocol Security
    Network Engineering
    VPN
  • $95 hourly

    • 4.9/5
    • (359 jobs)
    𝗬𝗼𝘂 𝗳𝗼𝗰𝘂𝘀 𝗼𝗻 𝘆𝗼𝘂𝗿 𝗕𝗨𝗦𝗜𝗡𝗘𝗦𝗦, and leave security, privacy, and compliance to me! As the founder of 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆-𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝗻𝘁.𝗰𝗼𝗺 I know that in the B2B space, you need Security, Privacy, and Compliance to sell to Enterprises! Let me help you unlock business opportunities and growth (💲millions) and sell to the likes of Disney, Pfizer, Uber, Siemens, Google, PWC, and so on. Sleep well overnight because you know you are in good hands with the 🥇 Upwork virtual CISO, Security, Privacy, and Compliance consultant (1M+ earnings, 20+ years of enterprise experience)! CEO selling to Morgan Stanley: 🥂"The certification is enabling us to strike a deal with a Fortune 100 client." CEO selling to Philips: 🍾 "We have achieved the ISO 27001:2022 certification in record time." CEO selling to Pepsi:🎉 "Attila supported the growth of our business into Fortune 100 accounts." COO selling to Fannie Mae:👏 "We achieved a successful SOC 2 Type II attestation with no exception." 💭Securing your business, passing security assessments by clients or prospects, and achieving a security certification 𝙨𝙝𝙤𝙪𝙡𝙙 𝙣𝙤𝙩 𝙗𝙚 𝙖 𝙘𝙪𝙢𝙗𝙚𝙧𝙨𝙤𝙢𝙚 𝙖𝙣𝙙 𝙥𝙖𝙞𝙣𝙛𝙪𝙡 𝙚𝙭𝙚𝙧𝙘𝙞𝙨𝙚. 👌 All you need to do is ping me on Upwork, bring your problem, and after a 15-minute scoping call, I will provide you with a detailed Scope of Work, including pricing! Specialized in business-to-business clients, providing 💸money-back guaranteed💸 ISO 27001, SOC 2, GDPR, HIPAA, PCI-DSS, CMMC, and FedRAMP projects and affordable virtual CISO (vCISO) services. ----> If you don’t get certified, all my fees will be refunded! <---- 𝙒𝙚 𝙖𝙧𝙚 𝙖 𝙜𝙤𝙤𝙙 𝙢𝙖𝙩𝙘𝙝 𝙞𝙛 𝙮𝙤𝙪 𝙖𝙧𝙚: 🤔 Want to understand the 𝙖𝙘𝙩𝙪𝙖𝙡 𝙘𝙤𝙨𝙩 for implementation and maintenance of the security controls? 😢Busy developing your product or business and don’t have time and resources to be consumed by compliance efforts and endless meetings, halting your production for months. 🤔Already purchased a DIY compliance tool (Drata, Vanta, Thoropass/HeyLaika, Sprinto, Tugboat Logic, SecureFrame, Strike Graph, Audit Board, Trust Cloud, and so on) but 𝙙𝙤𝙣’𝙩 𝙠𝙣𝙤𝙬 𝙩𝙝𝙚 𝙣𝙚𝙭𝙩 𝙨𝙩𝙚𝙥 𝙤𝙧 𝙙𝙤𝙣’𝙩 𝙝𝙖𝙫𝙚 𝙩𝙞𝙢𝙚. 😢You quickly need quick security or privacy awareness training, cloud security posture assessment (AWS, GCP, Azure), endpoint security (MS 365 - Intune, Jumpcloud, Google Workspace), or penetration testing? 💪Facing challenges with the security and privacy implications of AI products? 💪Want continuous access to a certified, creditable security, compliance, and privacy professional to manage your security framework? -> Continous virtual CISO (vCISO / fractional CISO) service with affordable weekly payments! 😟Need world-class, battle-proof security and privacy policies and you need it quickly? These are the ones that have passed audits by KMPG, Deloitte, E&Y, Pepsi, Uber, Verizon, Philips, Facebook, and many others. Working with me, you will: ● Stop struggling with compliance requirements, security questionnaires, or useless document templates. ● Make the first steps on the journey to selling Enterprises ● Receive turnkey, Enterprise-grade security operation framework ensuring long-term effectiveness ● Work with an experienced senior team (architects, pen testers, endpoint engineers, developers, auditors, consultants) that regularly helps clients score Enterprise accounts. My stats are: ✅Saved tens of thousands $$$$$ for clients, advising them on the right security tools, solutions, and approach ✅#1 in Information Security and IT compliance categories (1M+ earned) ✅Supporting all time zones ✅Long-term engagements ✅Professional certifications (CISA, CISSP, ISO 27001 IA) About the Security Consultants team: QUALITY over QUANTITY is our ethos. Excellent quality, on time, always. We only take on projects when we can deliver outstanding results. The team consists of (only) senior experts in AWS, Azure, GCP DevOps, SecOps, Penetration testing, Google Workspace, MS 365 Intune, AppSec, auditing, and compliance. Professional Integrity: We are strongly committed to moral and ethical principles and values, such as honesty, honor, responsibility, trustworthiness, and objectivity. What we look for in a new client: ● Open-minded, relaxed attitude ● Values integrity & long-term relationships ● Willing to accept advice and guidance (security is a complex niche) Security questionnaire and vendor assessment tools: CyberGRX, Panorays, KY3P (S&P, PWC), RSM, CyberVadis, SIG, SIG Lite, CAIQ, VAS, HECVAT, OneTrust, Graphite Connect, Centrl, Whistic, Process Unity Security/Compliance frameworks: ISO 27001, SOC 2, FedRAMP, NIST 800-53, NIST 800-171, NIST CSF, TISAX, HIPAA, HITRUST CSF, GDPR, NERC, ISO 27017, ISO 27018, CMMC, CMMI, TX-RAMP, StateRAMP, AZ-RAMP, NY DFS 23 / NYCRR Part 500, PCI-DSS, FFIEC, C5, ENISA, Center of Information Security (CIS) CSAT, IRAP, PIPEDA, ISO 42001
    vsuc_fltilesrefresh_TrophyIcon Firewall
    Risk Assessment
    Penetration Testing
    IT Compliance Audit
    Governance, Risk & Compliance Software
    NIST Cybersecurity Framework
    Information Security Consultation
    GDPR
    ISO 27001
    SOC 2
    AI Security
    SOC 2 Report
    Information Security Audit
    Certified Information Systems Security Professional
    Information Security
    Cybersecurity Management
  • $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,
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    Mobile App Testing
    Amazon EC2
    Blockchain
    ISO 27001
    Cloud Security
    Vulnerability Assessment
    Office 365
    Information Security
    Microsoft Azure
    Cybersecurity Management
    Penetration Testing
    Nessus
    WordPress
    Ethical Hacking
    Network Security
  • $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 much
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    Technical Support
    Microsoft Office
    Shopify
    Sophos Sophos UTM
    Customer Service
    Customer Support
    Network Monitoring
    Network Security
    VPN
  • $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.
    vsuc_fltilesrefresh_TrophyIcon Firewall
    Docker
    Email Design
    Network Engineering
    Network Administration
    Network Monitoring
    Network Design
    Linux System Administration
    Network Security
    Network Planning
    Web Hosting
    Windows Administration
    Virtualization
    System Administration
    System Monitoring
    NGINX
  • $50 hourly

    • 5.0/5
    • (21 jobs)
    Cloud Solution Expert with five years of experience designing and developing enterprise-level solutions using the latest technologies, including Azure, AWS, GCP, Terraform, Ansible, DevOps, Machine Learning, AI, C#, ASP.NET MVC, Angular, SQL Server, Power BI, and Oracle. I have designed and executed multiple cloud and colo migrations. I have also worked on Azure search and Azure ML. I have extensive knowledge of cloud security and have performed comprehensive assessments and implementation of cloud environments. I have implemented Palo Alto's next-generation firewalls for the azure environment in enterprise solutions. I have worked on projects for various clients on cloud technologies, including Schlumberger, TATA, JCB, McCann, National Express, Crown Paints, BFS, and Future Generali.
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    Microsoft Azure
    C#
    Cloud Computing
    Ansible
    Cloud Security
    Internet Security
    Kubernetes
    DevOps
    GitHub
    Azure App Service
    Microsoft SQL Server
    Cloud Architecture
    Azure IoT HuB
    Terraform
    Docker
    Machine Learning
  • $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.
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    Ansible
    Network Design
    Server
    Network Security
    Cisco Certified Network Associate
    Web Hosting
    Network Administration
    Email Security
    VMWare
    Amazon Web Services
    System Administration
    DNS
    Windows Server
  • $25 hourly

    • 4.8/5
    • (134 jobs)
    I’m a seasoned Full Stack Developer with a wealth of experience, having dedicated 8 years to the roles of Software Developer/Architect. My specialization lies in the realm of Mobile App development with a particular focus on creating innovative solutions for a wide spectrum of industries, with particular emphasis on chat-related and AI-related applications Initially, I had started my journey with “Accenture” and after having a good enough experience and knowledge I’ve started to work on my own as an independent freelancer" I’m completely available with an excellent solution and provide the best industry experience. --> Our experience & Area of expertise: I’m very passionate about creating intelligent systems that push the boundaries of human-computer interaction. With 3 years of experience in the field, I have honed my skills in developing cutting-edge AI solutions and bringing transformative ideas to life. Related to Database; I've worked with SQL relational databases like MS-SQL, MySQL, PostgreSQL, Oracle DB and no SQL databases like MongoDB, DynamoDB and Elastic search. I have strong hands on experience working with Firebase and have worked with following Firebase services as: -- Live Database -- Fire Store -- Firebase Functions -- Analytics -- Ad mob integration -- Notifications -- Test labs Worked well with the following Cloud AWS Services like below: -- Lamba -- Ec2 -- S3 -- Fargate -- Cognito -- Route 53 -- SNS -- Api Gateway -- EBS -- RDS -- Elastic search and Kendra. And good working knowledge with other Cloud Services : -- Azure -- GCP -- Linode -- DigitalOcean and Docker based images. Backend Development: I’m very good with ( Java as well as Node.js ). I’ve worked with following Java frameworks as below; -- Spring boot -- Spring MVC -- Spring security -- JPA, Hibernate -- JSF I have developed more than 100 applications in Mobile (Android/IOS), Desktop (Windows/Linux/Mac) and web applications for the different industries and their links such as; -- Instant Messaging/ Voice/ Video calling (WhatsApp/Telegram/Wechat) -- Food Delivery (UberEats/Swiggy) -- Cab booking apps (Ola/Uber) -- Hospital management (Doctor/ Patient appointment schedule) -- Booking system (Movie ticket booking / Postpaid/ Prepaid Recharges) -- Wallet management (Fund Transfer / Pay using wallets) -- Fantasy games (Dream11/ Sorare) -- Crypto based NFT minting platforms -- Dating apps (Tinder/ Bumble) -- Social media apps (Tiktok/ Facebook) -- Media streaming apps (Netflix) -- Fitness Apps Have a look few of our works that may interest you are as: =================================================== -> Instant Messaging: Okdone (like WhatsApp) Android: play.google.com/store/apps/details?id=io.okdone.chat Aapoon (like Telegram) Android: play.google.com/store/apps/details?id=go.socialchains.app iOS: apps.apple.com/in/app/aapoon/id1484191346 ==================================================== -> AI: AutoBiographer (Story Maker in written format) Android: play.google.com/store/apps/details?id=com.autobiography iOS: apps.apple.com/us/app/autobiographer/id6450035146 ArtiPic : AI Art Generator (Image Creator) Android: play.google.com/store/apps/details?id=ai.image.creator ===================================================== -> Dating: Hug Android: play.google.com/store/apps/details?id=com.hug.app iOS: apps.apple.com/in/app/허그-나를-위한-대화/id1568840820 Hihand Android: play.google.com/store/apps/details?id=com.hihand.app iOS: apps.apple.com/in/app/id6448904608 ===================================================== -> Fitness: Finutss Android: play.google.com/store/apps/details?id=com.finutss.metatrack.app ===================================================== -> Social Media: Adventure: The Bucket List App Android: play.google.com/store/apps/details?id=com.app.real4adventure Commune+ Android: play.google.com/store/apps/details?id=com.social.topg iOS: apps.apple.com/us/app/commune/id6450535334 Yeay Android : play.google.com/store/apps/details?id=yeay.tv.yeay IOS: apps.apple.com/us/app/yeay/id1070699048 Klokbox Family Memory Boxes Android: play.google.com/store/apps/details?id=com.klokbox iOS: apps.apple.com/us/app/klokbox-family-memory-boxes/id1611328703 ================================================== -> Streaming: Snibble (like Netflix) Android: play.google.com/store/apps/details?id=com.snibblecorp.snibble&hl=en_IN&gl=US iOS: apps.apple.com/us/app/snibble/id1464594506?l=lt Telly (Track TV Shows & Movies) Android: play.google.com/store/apps/details?id=com.telly.studios iOS: apps.apple.com/ca/app/telly-track-tv-shows-movies/id1589012731 ==================================================== -> Rental Booking: DriveNow (Car Rental App) Android: play.google.com/store/apps/details?id=com.drive_now ==================================================== Please take a look and ensure yourself that we are very good at delivering your requirements in a very professional way. Let’s discuss ahead.
    vsuc_fltilesrefresh_TrophyIcon Firewall
    VoIP
    XMPP
    AWS Lambda
    Chat & Messaging Software
    Flutter
    Amazon ECS
    Amazon EC2
    Java
    MQTT
    Mobile App Development
    Dart
    Microsoft Azure
    Android App Development
  • $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.
    vsuc_fltilesrefresh_TrophyIcon Firewall
    Fortinet
    Sophos Sophos UTM
    HP Network Management Center
    Network Administration
    SonicWall
    Wireless Network Implementation
    Network Security
  • $70 hourly

    • 4.9/5
    • (186 jobs)
    Hi! My name’s Jonathan and I’m a network and systems engineer. Throughout the past 7+ years, I've been both "Mr. Fix It" and "Mr. Build It" in IT, cloud, security, and network administration for healthcare practices, law firms, government contractors, non-profits, media agencies, IT service providers, and dozens of small businesses all over the country. My technical approach is analytical and systematic, but also efficient. I'm capable of working independently and/or as part of a team. During an active contract, I'm happy to work with you live over Zoom, phone, email, messages, whatever works for you! My professional experience includes (but is not limited to): - Managing/fixing/setting up domain DNS, web servers, email servers, and related components - Administrating all parts of Microsoft 365 & Windows including SharePoint, OneDrive, and Active Directory. - Administrating and implementing corporate IT security to align with strict data security standards (e.g., HIPAA, ISO 27001, and SOC2) - Design, configuration, and supervision of tailored corporate networks, VPNs, access controls, firewalls, servers, and hybrid cloud connects. I am familiar with most of the major manufacturers of networking equipment. - Engineering purpose-built cloud architectures for a variety of enterprise use cases on AWS and Azure (I can also set up Site-to-Site tunneling to/from networks based on AWS, Azure, and on-premises)
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    AWS Development
    Extreme Networks
    Troubleshooting
    Virtualization
    Data Backup
    Technical Project Management
    VPN
    SSL
    DNS
    Office 365
    Windows Server
    Virtual Desktop Infrastructure
    Network Engineering
    SQL
  • $50 hourly

    • 5.0/5
    • (90 jobs)
    System administrator for various Linux distributions, database and network administrator. Managing complex deployments for python, php, java and nodejs. Security technology specialist with over 15 years of experience in wide areas of network engineering and management, cyber and systems security, software and web development, cloud computing. Dedicated to improving critical thinking and providing best solutions and results. Able to adapt to changing priorities and maintain a positive attitude and strong work ethics. * Worked on various vpn implementation project for financing and banking industry (payment gateways, SIP implementation, etc.), gateway and remote access for both Unix and Windows servers * Experience with various vpn platforms (pfsense/opnsense, vyatta, vyos, openvpn, wireguard, shadowsocks, Unix based vpn, etc.) * PCI compliance specialist, able to deliver quality in short time * Strong troubleshooting network and routing problems skill * ElasticSearch cluster and replication, logstash, kibana and indexing strategies specialist
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    Kernel-based Virtual Machine
    Docker
    SEO Backlinking
    Information Security
    Search Engine Optimization
    Configuration Management
    Server
    Elasticsearch
    Load Balancing
    VPN
    Database Administration
    Email Security
    Linux System Administration
    Network Engineering
    NGINX
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