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Rating is 4.9 out of 5.
4.9/5
based on 219 client reviews
  2. Development & IT Talent
  3. System Administrators
  4. (Current) OpenVPN Specialists
  • $15 hourly

    • 4.5/5
    • (90 jobs)
    **Ranked in the Top 100 Developers in the world!** **Rated as Top 1% in Upwork Tests** With 12+ years of expertise in crafting high-impact Native (𝐒𝐰𝐢𝐟𝐭 𝐚𝐧𝐝 𝐊𝐨𝐭𝐥𝐢𝐧) Apps and Hybrid Cross-platform Apps (𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐚𝐧𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫). My commitment to clean coding practices ensures the success of projects, while proficiency in iOS and Android development, coupled with cutting-edge technologies, delivers efficient, scalable, and user-friendly applications. 🛠️ **Skills Showcase:** ----------- - **Languages:** Swift, Objective-C, Java, Kotlin, Dart - **Frameworks:** Flutter, React Native - **Development Tools:** Xcode, Android Studio, Visual Studio Code - **Database:** Firebase, SQLite, Realm - **API Integration:** RESTful APIs, GraphQL, Custom API development, integration with third-party APIs - **UI/UX Design:** Figma, Sketch, Adobe XD - **Version Control:** Git, GitHub, Bitbucket - **Deployment:** App Store, Google Play Store 🌟 **Expertise Across Various Domains:** ---------------------------------------------------------------------------- - Live Streaming - E-Commerce - Fitness & Nutrition - Social Media & Broadcasting - Dating - Ride Booking / Carpooling - Job Finding - QR & Barcode Scanning - Real Estate - Travel - Food delivery/restaurant table reservation - BLE App - Radar/Lidar - Flutter, and FlutterFlow tech-based apps 🌟 **Successful Project Highlights:** ----------------------------- - PDF document editing app for Android - Custom keyboards - XMPP-based messenger - GPS-based features app using Google Maps API (Android/iOS) - Simple race game - Dating apps with features like Tinder - Shazam-like video app for both Android and iOS - Video Streaming/ OTT platform TV apps like Netflix ⌛ **Availability and Commitment:** - 40+ hours/week - Flexible time zones - Open to short and long-term projects 💡 **Promises for Your Project:** - High Quality - Effective Communication - Timely Deliverance 𝙉𝙤𝙩𝙚: 𝐃𝐔𝐄 𝐓𝐎 𝐂𝐎𝐍𝐅𝐈𝐃𝐄𝐍𝐓𝐈𝐀𝐋𝐈𝐓𝐘 𝐀𝐆𝐑𝐄𝐄𝐌𝐄𝐍𝐓𝐒 𝐀𝐍𝐃 𝐍𝐃𝐀'𝐒 𝐑𝐄𝐋𝐀𝐓𝐄𝐃 𝐓𝐎 𝐌𝐀𝐉𝐎𝐑 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐅𝐑𝐎𝐌 𝐓𝐇𝐄 𝐔𝐒, 𝐔𝐊, 𝐀𝐔𝐒𝐓𝐑𝐀𝐋𝐈𝐀, 𝐀𝐍𝐃 𝐄𝐔𝐑𝐎𝐏𝐄, 𝐈 𝐀𝐌 𝐎𝐅𝐓𝐄𝐍 𝐑𝐄𝐒𝐓𝐑𝐈𝐂𝐓𝐄𝐃 𝐈𝐍 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐃𝐈𝐒𝐂𝐋𝐎𝐒𝐄. 𝐇𝐎𝐖𝐄𝐕𝐄𝐑, 𝐈 𝐂𝐀𝐍 𝐏𝐑𝐎𝐕𝐈𝐃𝐄 𝐃𝐄𝐓𝐀𝐈𝐋𝐒 𝐀𝐁𝐎𝐔𝐓 𝐒𝐎𝐌𝐄 𝐎𝐅 𝐌𝐘 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒. 𝐅𝐎𝐑 𝐀 𝐋𝐈𝐕𝐄 𝐃𝐄𝐌𝐎𝐍𝐒𝐓𝐑𝐀𝐓𝐈𝐎𝐍, 𝐏𝐋𝐄𝐀𝐒𝐄 𝐑𝐄𝐅𝐄𝐑 𝐓𝐎 𝐓𝐇𝐄 𝐀𝐏𝐏𝐒 𝐓𝐇𝐀𝐓 𝐀𝐑𝐄 𝐀𝐋𝐑𝐄𝐀𝐃𝐘 𝐃𝐄𝐏𝐋𝐎𝐘𝐄𝐃 𝐎𝐍 𝐓𝐇𝐄 𝐆𝐎𝐎𝐆𝐋𝐄 𝐏𝐋𝐀𝐘 𝐒𝐓𝐎𝐑𝐄 𝐀𝐍𝐃 𝐀𝐏𝐏𝐋𝐄 𝐀𝐏𝐏 𝐒𝐓𝐎𝐑𝐄. Feel free to message me with any queries. I am available 𝟰𝟬+ 𝗵𝗼𝘂𝗿𝘀 𝗽𝗲𝗿 𝘄𝗲𝗲𝗸 and flexible with any timezone meetings. 📈 **Let's Collaborate:** Ready to bring your app ideas to life? Whether it's a new project or improving an existing one, feel free to extend the invitation to your job posting or schedule a consultation with me. I'm always looking forward to new and exciting opportunities!
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    iPhone
    API Development
    Websockets
    Messaging System
    Android SDK
    Swift
    Mobile App Development
    Flutter
    iOS Development
    Kotlin
    React Native
    Android
    Firebase
    Hybrid App Development
  • $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.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    UniFi
    Docker
    Zabbix
    Ubiquiti
    Cisco
    MikroTik
    PfSense
    Proxmox VE
    Amazon EC2
    Network Security
    Firewall
    VPN
    Linux
    Amazon Web Services
  • $75 hourly

    • 5.0/5
    • (26 jobs)
    I am fluent in the following areas; Linux Server Administration - RHEL & Ubuntu AWS Cloud Computing/Google Cloud Computing/Non-Hyperscale Solutions DevOps & Pipelines VMWare, Proxmox and Nutanix Administration O365 & Google Workspace Large Scale Networking for WAN & MAN Architectures Unifi/Meraki -Software Defined Networking Windows Server Products - AD, GPO, DNS Zero Trust Implementations Computer and Network Security (Zero Trust & Audits) Information Security (GDPR, PCI, HIPPA, FERPA) Patching and Software Management Solutions For me details on me please visit my website in the Portfolio section
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    Linux System Administration
    Cisco
    Salesforce CRM
    Technical Support
    Windows Administration
    HIPAA
    Firewall
    Windows Server
    Cisco ASA
    Microsoft Azure
    Microsoft Active Directory
    Network Security
    Linux
  • $70 hourly

    • 4.9/5
    • (119 jobs)
    Hello, my name is Andrii. In my childhood, I spent a lot of time with a soldering iron, making different interesting things. At high school, I got a PC at home and started... Dos, Win, Linux, FreeBSD. At the present time, I have more than 20 years of Win experience and more than 16 years of *nix experience. I like to build systems and solve interesting issues. OS - FreeBSD, Linux (CentOS, Alma, Rocky, RHEL, Ubuntu, Debian, Gentoo, etc), Windows (3.1-2019) Virtualization - vSphere 5.x, 6.x. Standalone ESXi and clusters with SAN storages (iSCSI). KVM, Proxmox, oVirt. Veeam BnR, XSI-backup. VmWare Workstation, VirtualBox. Web servers - Apache, Nginx, Lighttpd, Tomcat DB servers - MySQL, MariaDB, Postgresql, MongoDB Mail - Postfix, Courier/Dovecot/Cyrus, Rspamd, Postgrey, Clamav, PostfixAdmin, SquirrelMail, Roundcube, Sendy, AWS SES. I have experience with WHM/cPanel, Plesk, VestaCP, Virtualmin, ISPmanager, but I don't like control panels (most projects are optimized for best performance, and there is no place for CP). If needed, I can learn and work with any control panel. Samba3+LDAP, Samba4 domains (about 500 user accounts, GPO, Roaming profiles, a lot of other stuff). Standalone samba servers. Docker, docker-compose, Jenkins, Ansible. FreeNAS, TrueNas. Squid (LDAP auth, AD auth, basic auth, Kerberos), FTP, SFTP, DHCPD, BIND, TFTP, DAViCal, tinc, mpd5, quagga, BGP, NFS, rsync, snapshot, rclone, Zabbix, SVN, GIT, Moodle, NextCloud, OnlyOffice, BigBlueButton, Caddy, etc. Dell servers, Dell PowerVault MD storages, HP servers, SuperMicro servers, and usual PC hardware. HP, 3Com, Dell switches, no Cisco experience. DD-WRT, including cross-compiling software from sources for this firmware for ARM arch. Shell, PHP scripting I have a lot of other expertise. Feel free to ask.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    VMWare
    Virtualization
    LDAP
    Dovecot
    Linux System Administration
    FreeBSD
    Windows Administration
    MySQL
    PostgreSQL
    Postfix SMTP Server
    DNS
    NGINX
    CentOS
    Linux
    Ubuntu
  • $80 hourly

    • 5.0/5
    • (378 jobs)
    Highly skilled Network and System Administrator with 15 years of experience in planning, designing, and implementing complex network infrastructures and systems. Proficient in a variety of networking technologies and operating systems, and possesses in-depth knowledge of network security, routing, and switching protocols. Proven track record of delivering high-quality network solutions and maintaining systems within budget and timelines. Skills: * Systems administration: Linux (RedHat, Debian, Ubuntu), Windows, macOS * Network administration: VLAN, VPN, Wireless networks, Network equipment management (Mikrotik, Sonicwall, Ubiquiti, Meraki, Cisco, Draytek), Deep understanding of network architecture * Routing technologies: BGP, OSPF, EIGRP, IS-IS, RIP, Static routing * AWS, Digital Ocean, Hetzner * OpenVPN, Wireguard, IPsec * Active Directory (from 2008 to 2016 functional level) * Virtualization: Hyper-v, VMWARE, Xen-Server * Kerio Winroute, PFSense, IPFire * Remote Desktop Services (formerly Terminal Services) * Synology NAS * Virtual Desktop Infrastructure: Practical experience with XenDesktop/XenApp 5/6/7 (over 100 clients) * Data Recovery * CCTV, NVR, DVR
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Duo Security
    Mikrotik RouterBOARD
    Ubiquiti
    Data Recovery
    ITIL
    Microsoft Server
    Virtualization
    Network Administration
    Cisco Meraki
    MikroTik RouterOS
    Amazon Web Services
  • $40 hourly

    • 5.0/5
    • (19 jobs)
    Expert in Mikrotik, Ubiquity, gained from working in a WISP/ISP environment. Hands-on different types of gear: Meraki, Radwin, SAF, Netonix, Cambium, Mimosa. Hands-on different monitoring systems: Zabbix, PRTG, UNMS, DUDE. Planning, configuring and troubleshooting different sizes and types of networks.(Wired and Wireless)
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Customer Service
    Technical Support
    WiFi
    Mikrotik RouterBOARD
    Wireless Network Implementation
    MikroTik RouterOS
    Virtualization
    Network Engineering
    Virtual LAN
    Ubiquiti
    Network Administration
    Internet Protocol Security
    VPN
    Network Design
  • $100 hourly

    • 5.0/5
    • (9 jobs)
    20+ years experience in administering *nix systems and networks. What I can do for you: - Manage equipment in physical datacenter - Manage infrastructure on the cloud (currently AWS and DigitalOcean - Migrate equipment between sites - Migrate services physical to virtual (OpenVZ, KVM, ESXi) - Migrate services physical or virtual to the cloud - Create and support Linux devop environment - Untangle existing network configuration. Make it or simple or redundant or balance of it. - Roll out IPv6 - Organize VPNs - "Install that app" on a Linux system - Configure VoIP server or fix its issues - Automate deployment with puppet, ansible, CloudFormation - Get it monitored (mainly but not limited by zabbix) - Get extra remote hands, if I run out of my own - Not get cold in the datacenter and not fell asleep during night migration :)
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Network Design
    Network Architecture
    PfSense
    AWS CloudFormation
    Ceph
    VoIP
    Virtuoso Universal Server
    IPv6
    OpenVZ
    Zabbix
    Network Administration
    Linux System Administration
    NGINX
  • $120 hourly

    • 4.9/5
    • (47 jobs)
    10+ years of experience on Unix-based operating systems (MacOS, Linux) Deep knowledge of CPU architectures, memory management 10+ years of C++/Qt desktop GUI development experiences 5+ years of kernel driver, low-level communication protocol development 5+ years of RTOSes, baremetal systems, task scheduling and threading 10+ years of network communication and socket programming Extensive knowledge of web technologies and desktop software development Strong documentation, testing and coding skills Keywords: c++, embedded, opengl, git, cmake, gcc, clang, travis CI, unit test, java, Linux, android, ios, php, sql, c++11, c++14, c++17, agile, engineering, mathematics, physics
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Kernel
    PLC
    macOS
    Machine Learning
    QML
    MQTT
    Industrial Automation
    Socket Programming
    Multithreaded Programming
    Eigen
    Qt Framework
    OpenGL
    C
    C++
  • $40 hourly

    • 5.0/5
    • (148 jobs)
    I am excited to offer 16+ years of solid experience in Physical & Virtual Server & Networking Platforms, System Administration, Network Administration,Managing Telecommunications Networks and Technical Strategy. Below are a few of my strong assets for your business: - Microsoft(Active Directory, DNS,DHCP, RDS,SQL Server(DB Admin),SharePoint, - Hyper-V, Exchange(All Versions &O365)Azure) - VMWare (ESXi, VCenter) - Citrix (XenApp, XenCenter) - Antivirus(Symantec(SEP),Mcafee(EPO),Kaspersky) - Linux (Ubuntu, CentOS,Debian) - Cloud(MS Azure,AMAZON AWS ,Google GCP,OVH and Digital Ocean) - Storage(Synology,QNAP,FreeNAS,WD,Dell and HP) - VOIP ( Avaya,3CX,Yeastar,XCally,GrandStream & FreePBX) - Firewalls (Fortinet, Sonicwall, Sophos, ASA,WatchGuard&PFSense) - Routers (Cisco, Ubiquiti) - Servers (HP Proliant Servers) & (Dell/EMC Servers) I am happily available anytime using secure remote support or walk you through the steps via Upwork chat .I am looking to show each client my worth to build a long relationship.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Storage Area Network
    Cloud Computing
    Active Directory Federation Services
    VoIP Administration
    Microsoft Hyper-V Server
    Microsoft Active Directory
    Cisco Router
    Firewall
    FreePBX
    Microsoft Exchange Server
    Office 365
    Windows Server
    Microsoft Azure
    Microsoft Exchange Online
    Fortinet
  • $69 hourly

    • 4.4/5
    • (316 jobs)
    🏆 8,000+ 𝗛𝗢𝗨𝗥𝗦 𝗪𝗢𝗥𝗞𝗘𝗗 | 🏆 500+ 𝗝𝗢𝗕𝗦 𝗖𝗢𝗠𝗣𝗟𝗘𝗧𝗘𝗗 Experienced Network Engineer. Proficient in Cisco, Fortinet, HPE ,Meraki, AWS, Azure, Juniper, Sonicwall, Sophos, Draytek, Palo Alto etc. Highly motivated and always eager to learn and master new technologies Proven performance in fast-paced and high-stress working environments. Strong analytical skills with exceptional attention to detail. Experience Highlights: • Network Administration: VLAN, VPN, Wireless networks, Network equipment (HP, Cisco, Huawei, Juniper), Deep network architecture expertise • Wireless Technologies: Aruba (WLC, Clearpass), Fortinet, Aerohive, Cisco (WLC), Meraki • Routing Protocols: BGP, OSPF, EIGRP, IS-IS, RIP, Static routing • High Availability: Active-passive clusters (HSRP, VRRP, JRRP), Load-balancing • Security: Firewalls (ASA, FWSM, Fortigate, Juniper SSG, SonicWall, pfSense), PKI, IDS/IPS, Antivirus, Antispam techniques, RADIUS (Windows / FreeRadius) • Voice & Video Conferencing: Polycom, Skype, Cisco (VCS, CCM, CUCM, Unity, IMP), Nortel, Asterix (TrixBox, Elastix) • Digital Marketing: Facebook Ads, Google Ads, Appsflyer, TikTok Ads, Retargeting, Event Tracking, Audience Management • Network Management Systems: Cisco Prime, Cacti, PRTG, Zabbix, NAGIOS
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Sophos Sophos UTM
    Network Analysis
    WiFi
    Cybersecurity Tool
    Network Design
    AWS Lambda
    Google Cloud Platform
    Microsoft Azure
    PfSense
    Check Point
    Palo Alto Firewalls
    Cisco ASA
    Cisco
    Aruba
    Fortinet
  • $50 hourly

    • 4.9/5
    • (587 jobs)
    As a Top-rated Plus,🏆native English writer 📝 and content consultant, I'm a team player for whom communication is the key to success! I provide unique, quality website content, articles, press releases, advice on content strategy, and more. 🕒22-Years of writing and content development experience at your disposal. 🔤British, Canadian, Australian, and American English. 🕵Content consultancy: Content strategy and brainstorming; see my consultancy service. 📄 I provide researched, authoritative, and SEO-friendly text to meet your needs. 🔧 News, how-to's, marketing, content planning, reviews, blogs, PR, buyer guides, site copy, localisation, content advice, etc. 🔊 No job too big or small; contact me for a chat. ============================================================================== Areas of Expertise and Research: 💎 Business: Startup, development, operations, sales, systems, investment, marketing, and more; reach out to discuss. 💎 B2B Technology: Managed IT, Cloud adoption & migration + vendors, DevOps, VPN, Cybersecurity B2B & B2C, Web development, SaaS, AI, RPA, Machine learning, Robotics, and more; reach out to discuss. 💎 B2C Technology: Smartphones, 5G, Comms, VPN, Photography and Videography, smart homes, Solar, Electric vehicles, and more; reach out to discuss. 💎 B2C & B2B Retail: Clothing, Home furnishing, Lighting, Security, Epos, SEO, Televisions, Smartphones, smartwatches, and more; reach out to discuss. ============================================================================== 👷My working process includes client onboarding and works as follows: → Client discovery part 1: Ideally, via a Zoom call (Upwork provides this option). → Client discovery part 2: A Q&A session based on the information provided. (Open to change) → Project scope and agreement: Agree on the work required, direction, requirements, etc. → Research: I start work by conducting research. → Drafting: I draft/create an outline of the work. → Writing: I complete the first round of writing. → Proofreading: I double-check all stated facts and correct where required. → Editing: I check for and correct punctuation, spelling and grammar issues. → Handover: I deliver the content on time and to the agreed scope. 📖: Feedback is welcome, and edits will be undertaken. Please watch my introduction video, which can be found on the left-hand side of my profile.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Consultation Session
    Blog Writing
    Article Writing
    English
    Website Copywriting
    Press Release
    Research & Strategy
    WordPress
    Content Management
    Content Planning
    Search Engine Optimization
  • $45 hourly

    • 5.0/5
    • (112 jobs)
    I'm UNIX/Linux System Administrator and DevOps engineer with 20 years experience. I have in setting up and managing servers, optimizing them for best performance and security aspects. I have expertise with setting up baremetal servers of various brands via IP KVM, IPMI, DELL DRAC, HP ILO. I'm working with virtualization platforms such as - VMWare, XEN, KVM, Microsoft Hyper-V, VirtualBOX. I'm working with cloud solutions as Amazon AWS, Google Cloud, Microsoft Azure I have set up and manage web servers using Apache/NGINX, configure HA clusters by using NGINX, Haproxy. The database servers administration MySQL, MariaDB, Percona, Oracle. Also, I have strong knowledge and experience with Windows Server various editions and Windows Dekstop platforms (Windows 10/11) I have great knowledge and strong experience with VPN technologies OpenVPN, PPTP, L2TP, IPSec, Wireguard. Very good knowledge and experience in troubleshooting.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Linux System Administration
    VPN
    Windows Administration
    VMware Administration
    Network Administration
    MySQL
    Apache Administration
    Firewall
    Iptables
    FreeBSD
    DNS
    Amazon Web Services
    NGINX
  • $45 hourly

    • 4.7/5
    • (13 jobs)
    Passionate about GNU/Linux systems and network administration. Several years of experience with core administration, web/mail/database servers, radio/video streaming solutions, website/database migrations. Cheerful, hard worker and quick learner.
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    Computer Network
    Embedded System
    Red Hat Administration
    Unix
    Linux System Administration
    Virtualization
    Network Administration
    NGINX
    Bash
    Python
    Linux
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    Senior iOS engineer: Swift | Objective-C I'm a senior iOS engineer with over 8 years in the field and software engineering diploma. Have worked in digital agencies on high-scale products in health, sport and education fields. Currently, I create architecture, build and publish iOS applications as an independent developer. My areas of strength are excellent problem solving, critical thinking, and good communication skills. Natural ability to work in a fast-paced environment and deliver top-notch products. I take great care of my apps and clients. Look forward to new collaborations! My qualification: ◉ Programming languages: Swift, Objective-C ◉ Web Service: XML, JSON, REST/SOAP ◉ Frameworks: Typhoon, UIKit, HealthKit, NetworkExtension ◉ Design patterns: VIPER, MVVM, MVC ◉ Database: Realm, CoreData, FireBase ◉ Maps: MapKit, Google Maps, OpenMaps ◉ Source code management: Git(GitHub, Bitbucket), CocoaPods, Carthage ◉ Social networks integration: Facebook, Twitter, Google, Instagram ◉ Application beta testing: TestFlight, Fabric (Crashlytics), Bugfender ◉ In-App Purchases Looking forward to implementing the future!
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Swift
    iOS
    VPN
    Android
    iOS Development
    Java
    Android App Development
    Objective-C
  • $50 hourly

    • 4.9/5
    • (27 jobs)
    Hello, I'm Shahzain Ali, a Mobile App Developer with 8 years of experience in Android, iOS, desktop, and VPN apps. I specialize in Kotlin, Swift, Java, and Python. From advanced mobile apps to innovative iOS solutions and robust desktop applications, my work also extends to wearables and IoT. Android: App development with advanced skills in Java, and Kotlin. iOS: iOS app development with advanced skills in Swift, SwiftUI Desktop Applications development, I develop using Tkinter and QT framework, I have awesome experience in Python and C++ with QT. Watch Application: Proficient in crafting apps for wearable devices (wearOS, watchOS, Tizen) VPN Technology Leader: Have an awesome experience in OpenVPN and Wireguard with integration to Android, iOS, and Desktop applications using Python and QT framework. IoT: Developing smart, connected solutions with proficiency in BLE, Arduino, ESP32,nodemcu, and sensors. Technology Toolkit: Development Tools and languages: Swift, Java, Kotlin, SwiftUI, cmake, Xcode, Android studio, QT, Tkinter, Python Database: Realm, Room, Sqlite Serverless architecture: Firebase including storage, Authentication, and Realtime database. Why Work With Me? Proven Success: Over 70 Android and iOS developed for clients globally, including in the USA, Germany, UK, and UAE Skills & Achievements: Comprehensive Authentication & Payment Integrations: Specializing in Firebase, Google, and Facebook authentication, and payment solutions like Stripe and paytabs. Advanced Programming Knowledge: Expert in MVC, MVVM, Google Maps API, geolocation, and biometric authentication. Community Contributor: An active voice in the developer community with a 200K reach on StackOverflow. Here are some awesome reviews of my clients I have developed an Android and iOS applications using Java, Kotlin, Swift.Mobile applications includes complex services of VPN and have Openvpn and Wireguard Protocol. "Perfect developer, adhere to schedule, highly motivated specialist for any complex task, will hire again for sure" I have fixed issue in cmake of an iOS application "Good experience working with Ali. He has a very good attitude and does his best to help"
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Firewall
    Linux
    Testing
    Qt Framework
    Wear OS
    VPN
    Java
    Android App Development
    Kotlin
    Mobile App Development
    iOS
    Python
    Swift
  • $30 hourly

    • 5.0/5
    • (11 jobs)
    - Full Stack Web Developer Experienced Full Stack Web Developer with 10 years of experience in many stages of advanced web development. Proficient in web development languages like Golang(5 years), Java(5 years), Javascript(8 years), Ruby(3 years) and bunch of frameworks and libraries based on these languages (React, Node.js, GIN, CI, Laravel, Symfony, Spring Boot, Ruby on Rails, Django ...). Equipped with familiarity to work in various working environments including in-office and remote ones, and in various teams of any scale from small (less than 5 members) to enterprise (over 50 members). - Linux / System administration Server administration, designing optimal performance strategies for security and scalability across cloud platforms such as AWS and Azure, and implementing backup solutions to ensure system reliability. In addition, I am skilled in assessing and enhancing server security protocols to safeguard user data. I possess expertise in Docker containers and have worked on several projects involving containerization.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Spring Boot
    PHP
    Golang
    React
    Node.js
    Web Development
    Kubernetes
    Azure DevOps
    System Administration
    DNS
    LAMP Administration
    Docker
    Linux System Administration
    Network Administration
  • $50 hourly

    • 4.8/5
    • (51 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
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Laravel
    Android
    VPN
    Android App Development
    SQL
    Vue.js
    PHP
    iOS Development
    Objective-C
  • $55 hourly

    • 4.8/5
    • (21 jobs)
    🥇 Top 1% - UpWork AWS Cloud, DevOps & Data Engineering. We are Matoffo, your trusted partner in the world of AWS and cloud infrastructure. As AWS Advanced Tier Services Partners, our team of trained and certified technical experts has a proven track record of delivering exceptional customer experiences to organizations around the world. Some of the technology stack that we can help with: -Cloud: AWS - official Advanced Tier Partner -Dockerization and orchestration: Kubernetes (Bare Metal), Docker, Amazon EKS, Amazon ECS, AWS Fargate -IaC (Infrastructure as a Code): Terraform, AWS CloudFormation -CI/CD (Continuous Integration & Continuous Deployment) : Jenkins, GitLab CI, Github Actions, CircleCI, AWS CodePipeline, Azure DevOps -Monitoring and logging: DataDog, Prometheus/Grafana, New Relic, Elastic Stack (ELK stack), AWS CloudWatch; -BigData: Spark/PySpark, Hive, Kafka, ELK stack (Elasticsearch, Logstash, Kibana), Tableau, Databricks, Airflow, Amazon EMR, Amazon Kinesis -Data Lakes and Analytics: Amazon S3, AWS Lake Formation, AWS Glue, AWS Athena, Amazon Redshift 0Databases: MySQL, MongoDB, PostgreSQL, MariaDB, Amazon Aurora, Redshift, Elasticsearch, Cassandra, MongoDB, DynamoDB, Oracle SQL -Serverless: AWS Lambda, AWS Fargate, AWS Step Functions We excel in a wide range of AWS use cases, including but not limited to: -Cloud Operations -Containerization -Conversational AI -Data and Analytics -DevOps -Digital Customer Experience -Digital Workplace -Machine Learning / MLOps -Migration -Networking -Security / SecOps Where We Deliver Maximum Value: -Assessment: Whether it's a well-architected assessment or a deep dive into security, we help you understand where you stand in terms of best practices and guide you in enhancing any gaps we find. -Migration Funding: Benefit from our status as Advanced Tier Services Partners, as we can request funds or credits for your project, up to $25,000 for PoC and up to $400,000 for migration. -Expertise on Demand: If you lack an in-house Cloud or DevOps team or need specialized expertise for your projects, we're here to bridge that gap. -Kubernetes Guru: As official AWS EKS partners, we're Kubernetes experts. Building Ecosystem: We actively contribute to the AWS marketplace and create templates for common solutions. -In-House vs. Managed Services: Choose us over in-house experts because you gain access to our entire company's competency at no additional cost. -Startup/Medium Business Focus: We offer special programs and conditions designed specifically for startups. Why Choose Matoffo: 92% of our clients are long-term partners. We work with everyone from startups to enterprises and are here to help guide you every step of the way through your journey. Ready to transform your tech? Reach out to us and schedule a meeting today!
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Grafana
    Terraform
    Data Lake
    Prometheus
    CI/CD
    Jenkins
    AWS Lambda
    AWS Fargate
    MLflow
    DevOps
    Amazon Web Services
    Docker
    ETL Pipeline
    Kubernetes
    Data Engineering
  • $75 hourly

    • 5.0/5
    • (22 jobs)
    Ten years of network and systems administrator work with a focus on security. Skilled in implementing and maintaining a wide range of technologies, including: -Windows/Linux servers -Azure and AWS networking -Firewalls, Routers, and Switches -M365 Security -Email Authentication: SPF, DKIM,DMARC,BIBI -DNS -Data Center work -Active Directory -VPN
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Cisco ASA
    Firewall
    Office 365
    Cloud Computing
    Windows Server
    Linux System Administration
    Email Security
    Microsoft Active Directory
    Microsoft Azure
    Computing & Networking
    Network Administration
    Network Design
    Cisco Meraki
    Network Security
    VPN
  • $125 hourly

    • 4.7/5
    • (48 jobs)
    Thank you for visiting my profile. I have been in the Information Technology field since 1995 working with servers and end-user support. I am trained in Windows Server, Linux, Cisco, and Cyber Security. In the years I have been in the field I have picked up a lot of knowledge on many technologies. With that in mind, I am sure I can work with you to help you with whatever your project consists of. Please feel free to drop me a line so we can discuss your needs further and hopefully we can work together to build a long-lasting business relationship.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Windows Server
    Linux
    Linux System Administration
    Network Design
    Network Administration
    Educational Technology
    Database Administration
    PfSense
    Security Testing
    Network Monitoring
    Cybersecurity Tool
    Network Analysis
    Firewall
  • $45 hourly

    • 4.8/5
    • (62 jobs)
    I have over 15 years of experience in the IT industry working with Start-Ups, Corporate Enterprises and Freelancing with Small Businesses. My skills have been developed on an as-needed basis, and includes but not limited to : * Windows / Linux Server Administration, * Scripting(VB, Bash), * Web Application Development(PHP, MYSQL, Python, Postgresql), * Network Administration (Switching & Routing: mostly Cisco, some Juniper experience) Some of the recent projects I have worked on include: * Network Segmentation for a 5 site WAN, migrated from switched layout to a routed segment at each site, using OSPF for optimized routing and growth. * Web Application Development for Government of Anguilla to process and analyze data from Environmental Survey. The main goal was to allow surveys to be submitted and then provide statistics based on answers per question. The solution was completed using PHP / MYSQL backend and a Bootstrap Template for the frontend. * Integration Scripts for Online Casino to poll and send data between their Casino Software provider and their Affiliate System using their APIs. The scripts were written in PHP and exposed some settings and data in a web-based portal. * Asterisk Based PBXs for Call Center for a multinational. We use internal trunks to route calls to the call center in one territory, they can send the call back to local office if needed. * Freeswitch & FusionPBX for multitenant voip hosting. * ESL programming to integrate applications with freeswitch, developing APIs as needed and integrating with the supply chain providers. I used flask heavily for lightweight middlewares * Django api backend using DRF for a payroll and hr management. Our backend handled all of the business logic and payroll calculations as well as AAA.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    LAMP Stack
    Linux System Administration
    Computer Network
    Network Administration
    Python
    VoIP
  • $50 hourly

    • 4.9/5
    • (90 jobs)
    I have over 10+ years of practical working experience in VPN (Openvpn, IPSec, PPTP, IPSec/L2TP), Networking (Cisco Nexus, ISE, Juniper, Mikrotik, Ubiquiti) firewall (Sonicwall, Watchguard,Fortigate, Sophos, checkpoint, ASA, Palo Alto), VoIP,SIP, Asterisk, Freepbx, GSM Gateway, Cloud system (AWS, Digital Ocean, Azure), WAF (F5), Cisco ISE, Mail server (SPF,DKIM,DMARC records) and troubleshooting. Apart of that have working experience on Azure sentinel, 365 Defender, Defender for Cloud, Nessus Also I am holding the following vendor certification 1. Cisco Certified Network Associate 2. Red Hat Certificate of Expertise in Server Hardening 3. Red Hat Certificate of Expertise in Server Hardening 4. Red Hat Certified Virtualization Administrator - (RHCVA) 5. Red Hat Certified Engineer (RHCE) 6. Red Hat Certified System Administrator (RHCSA) 7. Red Hat Certified System Administrator in Openstack 8. ISC2 - Certified in Cybersecurity Certification I am interested in working on any project related to VPN, Network Security, Cisco, VoIP, Asterisk, FreePBX, Elastix, IP Networking, Firewall, Linux system administration, and network/server troubleshooting.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Amazon Web Services
    FortiGate Firewall
    Asterisk
    Information Security
    F5, Inc.
    Palo Alto Firewalls
    Cisco ACI
    Network Security
    VPN
    Firewall
    Cisco ISE
    Web Proxy
    Cisco ASA
  • $30 hourly

    • 4.2/5
    • (13 jobs)
    Companies on Upwork trust me with their infrastructure, sometimes worth $1M+. I have never failed a client, or broken trust. I am a reliable, security-orientated Engineer with a passion for system administration. .: AWS / GCP .: Linux (Redhat & Debian) .: Ansible .: Docker .: WHM/cPanel Expert .: BDR
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Linux System Administration
    Web Host Manager
    Ansible
    cPanel
    Technical Support
    Google Cloud Platform
    Linux
    System Administration
    Windows Server
  • $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
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Linux System Administration
    Cisco Certified Internetwork Expert
    Palo Alto Firewalls
    Cisco Router
    Network Administration
    Network Security
    Cisco Meraki
    Zabbix
    VPN
    Cisco ASA
  • $70 hourly

    • 4.7/5
    • (202 jobs)
    6+ years as DevOps 8+ years as Virtualization / Cluster Expert 12+ years as Linux/BSD administrator 15+ years as Network Engineer 16+ years as Systems Administrator I can help you with: ➢ Virtualization: KVM, Xen, OpenVZ, LXC, LXD, FreeBSD Jail, Proxmox, VDSmanager, Docker ➢ Management: Proxmox, OpenNebula, OpenStack, oVirt ➢ Storage: CEPH, LizardFS, DRBD, SCSI, ISCSI, SAN, NAS, LUNS, ZFS ➢ Orchestration: Puppet, Foreman, Ansible, Chef, Salt ➢ High availability: Corosync, Pacemaker, MySQL cluster, Multipathing, Bonding ➢ Monitoring: Zabbix, Monit, Cacti, ELK(Elasticsearch+Logstash+Kibana) ➢ Backup & Archiving: Bacula, rsync
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    DevOps
    Linux System Administration
    Proxmox VE
    Unix Shell
    Storage Area Network
    Cloud Computing
    Network Administration
    Docker
    Zabbix
    Virtualization
  • $70 hourly

    • 5.0/5
    • (255 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.
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Firewall
    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
  • $50 hourly

    • 4.9/5
    • (102 jobs)
    Experienced Network Operations Center Team Lead with a demonstrated history of working in the information technology and services industry. - expert in building vpn platforms - expert in Networking, Cisco Systems Products( R&S, Security and Collaboration). - expert in Palo alto , Fortinet, PFSense firewalls, Mikrotik router, VPN - very good experience in Vmware ESXi, Ubiquity, Unify , windows Servers - very good exprience in cloud (AWS, GCP, Azure, Oracle OCI) - very good experience in linux -very good experience in docker, kubernetes -very good experience in git, ci/cd - Strong Development Skills specially network development(C#, .net web API , asp.net mvc) - .net core web api, microservices, rabbitmq, Rest API, EF
    vsuc_fltilesrefresh_TrophyIcon OpenVPN
    Virtual Private Server
    PfSense
    Cisco Router
    Cisco Certified Network Professional
    .NET Core
    Cisco CallManager
    C#
    MikroTik RouterOS
    Cisco ASA
    .NET Framework
    Network Security
    VPN
    Network Design
    Ubiquiti
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