Freelancers 분야의 채용

  • 아스테리스크 PBX
  • 컴퓨터 보안
  • Online Users
제안:
더 보기

국가

특정 위치

기술 시험

시급 (USD)

평점

온라인

279건의 결과 표시
  •     srmukul2
 님에 대한 채용 진행     srmukul2
 님에 대한 채용 진행

    srmukul2 srmukul2

    Bangladesh $70 USD (1시간 기준)
    Certified Ethical Hacker and Pentester
    Bangladesh
    6.5
    25개 리뷰 25개 리뷰 시간당 $70 USD
    ✔️Certified at Windows Security & Forensics ✔️Certified at Ethical Hacking ✔️Certified at WEB APP SECURITY FUNDAMENTALS ✔️Certified at Website Hacking / Penetration Testing Main Skills: Penetration Testing, Web Application Security. Social Engineering, Red team assessment, Ethical Hacking & Countermeasures,...
    ✔️Certified at Windows Security & Forensics ✔️Certified at Ethical Hacking ✔️Certified at WEB APP SECURITY FUNDAMENTALS ✔️Certified at Website Hacking / Penetration Testing Main Skills: Penetration Testing, Web Application Security. Social Engineering, Red team assessment, Ethical Hacking & Countermeasures, Vulnerability Assessment, Malware Analysis and server Security Hardening. My core competency lies in performing black and gray box testing, on the live web applications/networks or in lab environments.I am familiar with all common attack vectors and mitigation techniques, as well as finding unknown to public exploits known as 0days in web applications. Even though most of my work is confidential I can share vulnerability assessment sample. I have experience in vulnerability assessment for PCI & HIPAA Compliance. 덜 보기
  • srmukul2 님에 대한 채용 진행
  •     servermaster
 님에 대한 채용 진행     servermaster
 님에 대한 채용 진행

    servermaster servermaster

    Estonia $25 USD (1시간 기준)
    Professional IT specialist
    Estonia
    4.7
    4개 리뷰 4개 리뷰 시간당 $25 USD
    About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is...
    About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is easy to setup systems. I am not picky about what systems to use but i do have experience what to use. I know following operating systems + distros: debian, ubuntu, gentoo, suse, redhat, centos, rocky linux, almalinux and arch linux, freebsd, netbsd, openbsd, sun solaris plus ms windows servers. I also know following systems: Web servers: Apache, Nginx, Lighttpd, Litespeed, Hiawatha. Javascript: nodejs,npm Java web servers: Tomcat, Jrun, Jboss Proxy systems: Haproxy, Varnish, Squid. DB servers: MySQL (and forks, including MariaDB), PostgreSQL Mail systems: Postfix,exim,dovecot.. and implementing: DKIM, SPF, MX, DMARC. Monitoring systems: Nagios, zabbix, cacti, grafana. SMS: SMSC, Kannel DNS: Bind, Djbdns, Dnsmasq. VPS: Vmware, Hyper-v, Proxmox, bhyve, kvm, xen, openstack.. Containers: docker, lxc, jail, kubernetes Cloud providers: AWS, Digitalocean, Azure.. My knowledge does not stop here. I troubleshoot easily. Let's chat Please see my reviews of my previous works.. PS! With my bid you will get one week free support for work done 덜 보기
  • servermaster 님에 대한 채용 진행
  •     rupa37
 님에 대한 채용 진행     rupa37
 님에 대한 채용 진행

    rupa37 rupa37

    Nepal $25 USD (1시간 기준)
    System Administrator/DevOps Engineer/CICD/CLOUD
    Nepal
    4.0
    4개 리뷰 4개 리뷰 시간당 $25 USD
    I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise...
    I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise extends to a wide range of Linux systems, and I am well-versed in handling various distributions, ensuring their stability, security, and performance. I have a proven track record of successfully deploying web applications, guaranteeing smooth and reliable online experiences for users. One of my core strengths lies in managing system updates and applying security patches promptly, reducing vulnerabilities and minimizing downtime. My commitment to network security is unwavering, and I implement robust measures to protect data and maintain the integrity of systems. Furthermore, my proficiency in Cisco networking solutions allows me to design, configure, and troubleshoot complex network infrastructures, ensuring seamless connectivity and optimal performance. Additionally, I have a solid understanding of HPE (Hewlett Packard Enterprise) equipment, enabling me to efficiently manage and maintain these devices to meet organizational needs. With my extensive knowledge, practical experience, and dedication to staying updated with the latest industry trends, I am well-equipped to contribute significantly to any organization's IT operations, ensuring they run smoothly, securely, and efficiently. 덜 보기
  • rupa37 님에 대한 채용 진행
  •     AhmedMFakkar
 님에 대한 채용 진행     AhmedMFakkar
 님에 대한 채용 진행

    AhmedMFakkar AhmedMFakkar

    Egypt $40 USD (1시간 기준)
    Cisco Professional
    Egypt
    6.8
    125개 리뷰 125개 리뷰 시간당 $40 USD
    I'm network engineer holding Cisco CCNP certificate. I have 6 years of experience in IT networks. I am expert of network simulation softwares like Cisco Packet Tracer and GNS3 and in Data analysis using Wireshark. Also, i have strong experience in writing technical reports and summaries. My specialties: - Design and...
    I'm network engineer holding Cisco CCNP certificate. I have 6 years of experience in IT networks. I am expert of network simulation softwares like Cisco Packet Tracer and GNS3 and in Data analysis using Wireshark. Also, i have strong experience in writing technical reports and summaries. My specialties: - Design and implement medium and large scale enterprise networks. - Expertise of VPN technologies such as, OpenVPN, IPsec, L2TP, PPTP, SSL, etc. - Routing technologies RIP, OSPF, EIGRP, ISIS, BGP, etc. - Switching technologies VLANs, STP, VTP, Etherchannel, HSRP, etc. My hands-on experience, - Cisco routers (ASR 1K & 9k, 2900, 2800), Switches (Nexus 9000, Nexus 7000, Nexus 3000, CAT 6500, CAT 3750, CAT 2900, SG- 300, SG-500) and Firewalls (ASA 5505, 5506x). - Palo Alto 220, 550, 850 and 3200 and Fortigate 100E, 200E and 800E Firewalls. - Juniper Routers (M7, M10, MX 480, MX 960) and SRX (300, 500). - Huawei routers NE-40, NE5000E and Switches Quidway S2700 and S5300. - HP Switches procurve 3500 and procurve 5900. 덜 보기
  • AhmedMFakkar 님에 대한 채용 진행
  •     touhidecevw
 님에 대한 채용 진행     touhidecevw
 님에 대한 채용 진행

    touhidecevw touhidecevw

    Bangladesh $50 USD (1시간 기준)
    Network & System Specialist|CCNP|Fortinet|RHCE|CEH
    Bangladesh
    4.5
    19개 리뷰 19개 리뷰 시간당 $50 USD
    ✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...
    ✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH Cloud and Digital Ocean ✅VMware ESXi, VMware Workstation, VirtualBox, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration (Windows Server 2008, 2012, 2016, etc.), Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python 덜 보기
  • touhidecevw 님에 대한 채용 진행
  •     mobimubasir
 님에 대한 채용 진행     mobimubasir
 님에 대한 채용 진행

    mobimubasir mobimubasir

    Pakistan $25 USD (1시간 기준)
    Top #2 Percent Freelancer
    Pakistan
    3.3
    4개 리뷰 4개 리뷰 시간당 $25 USD
    I am a seasoned Web Engineer and Software Designer with over seven years of extensive experience in the IT industry. My professional journey began after graduating with a degree in Computer Science, fueling a passion for solving complex technological challenges and fostering a love for coding. I've since evolved into...
    I am a seasoned Web Engineer and Software Designer with over seven years of extensive experience in the IT industry. My professional journey began after graduating with a degree in Computer Science, fueling a passion for solving complex technological challenges and fostering a love for coding. I've since evolved into a dynamic, versatile problem-solver who thrives on being able to improve system efficiency and user interaction. 덜 보기
  • mobimubasir 님에 대한 채용 진행
  •     RafimKs
 님에 대한 채용 진행     RafimKs
 님에 대한 채용 진행

    RafimKs RafimKs

    India $50 USD (1시간 기준)
    Expert System, Network & VOIP Administrator
    India
    5.7
    38개 리뷰 38개 리뷰 시간당 $50 USD
    Top 1% in the Freelancer.com Community. 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...
    Top 1% in the Freelancer.com Community. 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) - Wireless(Cisco,Unify,Grandstream,Fortigate) - 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 Freelancer chat .I am looking to show each client my worth to build a long relationship. Get started by clicking on "Hire Me" 덜 보기
  • RafimKs 님에 대한 채용 진행
  •     RomanSattar
 님에 대한 채용 진행     RomanSattar
 님에 대한 채용 진행

    RomanSattar RomanSattar

    Pakistan $5 USD (1시간 기준)
    Cyber Security Analyst | Penetration Tester
    Pakistan
    4.1
    9개 리뷰 9개 리뷰 시간당 $5 USD
    Hello There! As an experienced Cyber Security Analyst, I specialize in safeguarding the confidentiality, integrity, and availability of digital assets. With a profound grasp of industry-recognized cyber security standards and best practices, my expertise extends to cyber threat intelligence, forensic analysis, and...
    Hello There! As an experienced Cyber Security Analyst, I specialize in safeguarding the confidentiality, integrity, and availability of digital assets. With a profound grasp of industry-recognized cyber security standards and best practices, my expertise extends to cyber threat intelligence, forensic analysis, and deep web exploration. By leveraging tools such as Tor, Maltego, and Shodan, I identify and mitigate hidden cyber threats, crucial for fortifying your cyber security defenses and guiding your decision-making process. As a proficient Ethical Hacker, I employ state-of-the-art methodologies and tools, including Kali Linux, Nessus, Metasploit, and Wireshark, to conduct comprehensive security evaluations. My approach to ISO 27001 Penetration Testing and assessments against the OWASP Top 10 Vulnerabilities ensures thorough identification of security weaknesses and the formulation of effective remediation strategies. With expertise in data forensics using EnCase and FTK, I offer insights that empower you to make strategic, data-informed decisions. I empower clients to strengthen their digital environments against cyber threats through the implementation of advanced security measures, including Firewalls, Intrusion Detection/Prevention Systems (IDS/IPS), and robust encryption protocols. My knowledge of CASA Tier 2 standards enhances the resilience of cyber security solutions. Offering Specialized Services In: Comprehensive Incident Response Planning and Cyber Security Risk Analysis aligned with the OWASP Top 10 framework. Advanced Threat Modelling utilizing tools such as Microsoft Threat Modeling Tool and OWASP Threat Dragon, With comprehensive DREAD & STRIDE Analysis. Detailed Cyber Security Audits, leveraging industry-leading tools like Qualys and SolarWinds Penetration Testing and Vulnerability Discovery, employing Burp Suite and OWASP ZAP for in-depth analysis Advanced Cyber Defense Mechanism Deployment, meeting CASA Tier 2 and ISO 27001 standards Strategic Cyber Security Enhancement Recommendations, tailored to the latest industry trends and standards Collaborating with me guarantees prompt responses, transparent communication, and a commitment to a 24-hour turnaround time. ⏱️ Let's elevate your cyber security together. Reach out to discuss how I can customize my services to meet your specific needs. Thank you for considering my profile :) 덜 보기
  • RomanSattar 님에 대한 채용 진행
  •     iemumair
 님에 대한 채용 진행     iemumair
 님에 대한 채용 진행

    iemumair iemumair

    Pakistan $19 USD (1시간 기준)
    Network and System Engineer | CCNA | CCNP
    Pakistan
    6.4
    215개 리뷰 215개 리뷰 시간당 $19 USD
    A dynamic IT Engineer with 8 years plus experience of Systems and Networks. I have experience of End User Technical Support, Desktop Support, Network Design, Development, Operations, Maintenance, Routing & Switches, Firewalls and Load Balancer from the well-reputed organization. Working knowledge of major networking...
    A dynamic IT Engineer with 8 years plus experience of Systems and Networks. I have experience of End User Technical Support, Desktop Support, Network Design, Development, Operations, Maintenance, Routing & Switches, Firewalls and Load Balancer from the well-reputed organization. Working knowledge of major networking components & hardware components. Redesign and Re-engineering of existing networks for future growth. Configuring Network in a simulation environment such as Packet Tracer, GNS3, My expertise are given below ✅ Configuration of Cisco Firewalls, Routers & Switches ✅ Existing Network Connectivity Issues ✅ Expert in VPN (GRE, SSL, DMVPN, IPSec Site to Site). ✅ Routing Protocol (IPV4 and IPV6) ✅ Network Design, Troubleshooting in GNS3 & Cisco Packet Tracer ✅ Report Writing Guidance for Network ✅ Routing Protocols (Static and Dynamic) ✅ Technical Documentation & Report Writing ✅ Network Diagram using MS Visio *** Just A Trial Will Convince You. *** 덜 보기
  • iemumair 님에 대한 채용 진행
  •     amprosolutions
 님에 대한 채용 진행     amprosolutions
 님에 대한 채용 진행

    amprosolutions amprosolutions

    Pakistan $20 USD (1시간 기준)
    IT & Networks | Web & App Development | VA
    Pakistan
    5.4
    33개 리뷰 33개 리뷰 시간당 $20 USD
    Thank you for having a glance at my profile. I am Amaan Malik, a professional and experienced IT Consultant with over 9 years of successful and proven record in the IT industry. My aim is to grow businesses to the next level by providing high-quality IT services. I am providing the following services to businesses...
    Thank you for having a glance at my profile. I am Amaan Malik, a professional and experienced IT Consultant with over 9 years of successful and proven record in the IT industry. My aim is to grow businesses to the next level by providing high-quality IT services. I am providing the following services to businesses and individual clients. => COMPUTER NETWORKS > Network administration, network monitoring > Network support level 1/2/3, managed services on monthly subscription/SLAs > Network designing, HLDs, LLDs, Network diagrams on MS Visio > Network configurations and testing > Network troubleshooting > Technical proposals, RFPs > Configuration, provisioning, and testing of VoIP phones. > Platforms: Juniper (SRX Series, EX Series, MX Series, Junos space), Aruba (ClearPass/WLAN), Cisco (routers/switches/firewalls/WLAN/ISE), Ruckus WLAN, Fortinet firewalls, Whatsup gold, Cisco IP phones SPA series > Expertise: Routing protocols (OSPF, EIGRP, RIP, BGP), STP, RSTP, VLANs, DNS, DHCP, MPLS, VRRP, HSRP, NAT/CGNAT, PAT, ACLs, port forwarding => SYSTEM SERVICES > System administration, system support, desktop support on monthly subscription/SLAs > OS installation, software installation > Server installation and configurations > Chat applications installation on Linux servers > Virtualization, Virtual machine setup > Installation and configuration of VoIP/PBX on Linux servers. > Installation and configuration of service desk solutions of Jira and ManageEngine. > Data visualization and dashboards using Power BI > Installation, configuration, and testing for RapidPro > Platforms: Linux (Ubuntu, CentOS, Debian), Windows servers (R2012, R2016, R2019), Active Directory, Microsoft Exchange, Sharepoint, MS Teams, Azure AD, Jira, Confluence, Miro, Zoho, Rocket chat, Hyperledger, VMware, FusionPBX, Docker, ManageEngine Service Desk Plus Cloud, Yealink IP phones, Power BI => WEB DEVELOPMENT > Website design and website development > Payment integrations > Theme installation/plugin installation > Custom website development > Website content > Website optimization > Complete website SEO > Website maintenance on a monthly subscription > Platforms: WordPress, Wix > Web programming: PHP, HTML, CSS, Laravel => APPLICATION DEVELOPMENT > Android apps > iOS apps > Hybrid apps > Desktops apps > Web applications > App publishing on app store and play store > Expertise: JAVA, Kotlin, Flutter, Reactnative, Firebase => E-COMMERCE > Dropshipping websites > Single product store > Custom e-commerce store > Product Listing > Complete store SEO > Store optimization > Platforms: Shopify, OpenCart, Prestashop, Woo-commerce I have always satisfied my past clients with my work. That’s why all of them gave me a five-star rating which of course is a huge achievement for me. I always meet deadlines and never hesitate to make the best use of my skills and knowledge to complete a project successfully. Feel free to contact me any time. 덜 보기
  • amprosolutions 님에 대한 채용 진행

님, 다음 프리랜서는 현재 오프라인 상태에 있습니다.

님, 다음 프리랜서는 현재 오프라인 상태에 있지만, "" 분야와 일치합니다.