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高级威客
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雇用 martini002
Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software...Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software integration using tools like Raspberry Pi and Arduino. ✴️ Core Technical Skills - Python Development – Efficient and scalable backend systems - Django & Django REST Framework – Clean, secure, and well-documented APIs - Process Automation – From workflow optimization to RPA and web scraping - Hardware Integration – Raspberry Pi, Arduino, sensors, and custom electronics - Linux Server Administration – Secure deployments, performance tuning, and uptime reliability - Database Management – MySQL, PostgreSQL, SQLite - Basic Frontend Development – Clean and functional interfaces using HTML, CSS, and JavaScript ✴️ What I Build - Custom RESTful APIs for mobile or web apps - End-to-end IoT solutions and embedded systems - Automation tools that reduce manual work - Monitoring dashboards with real-time hardware data - Backend platforms with hardware communication layers ✴️ Why Work With Me? - Specialized Expertise – I solve technical problems with depth, not with shortcuts - End-to-End Ownership – From architecture to deployment and post-launch support - Clear Communication – Technical concepts translated into actionable plans - Long-Term Support – I don’t disappear after delivery; I ensure everything works and improves Let’s Work Together If you’re looking for a backend engineer who understands both software and hardware, and who can deliver efficient, future-ready solutions, I’d love to hear about your project. ✴️ Reach out to discuss how we can bring your ideas to life. 收起 -
雇用 vano101
Professional software developer with over 25 years of overall experience in software development and maintenance looking for challenge projects fit my skills. Main specialization: • developing Windows Desktop and Web solutions (mainly using C, C++, C#, ASP.NET) • converting/translating/porting code from one...Professional software developer with over 25 years of overall experience in software development and maintenance looking for challenge projects fit my skills. Main specialization: • developing Windows Desktop and Web solutions (mainly using C, C++, C#, ASP.NET) • converting/translating/porting code from one programming language to another programming language. • writing wrappers around miscellaneous libraries, packages and SDKs, mainly for using it with other programming languages. • consuming HTTP based APIs, (RESTful APIs, etc) • scraping data from web sites, both with and without Selenium Secondary specialization: • developing Linux and cross-platform solutions and utilities. • scripts/utilities to process Excel spreadsheets • Microsoft Office Automation 收起 -
雇用 ServerOK
I have 20 years of experience in web hosting, managing RHEL, CentOS, CloudLinux, Ubuntu, Debian, FreeBSD, and Windows Servers. I am online from UTC/GMT 03:00 to 07:00 and 16:00 to 20:30. * Linux - Ubuntu/Debian/CentOS/RHEL/Fedora/FreeBSD * Azure/Amazon AWS/Google Cloud * Nginx/Apache/Lighttpd/LiteSpeed * VPS -...I have 20 years of experience in web hosting, managing RHEL, CentOS, CloudLinux, Ubuntu, Debian, FreeBSD, and Windows Servers. I am online from UTC/GMT 03:00 to 07:00 and 16:00 to 20:30. * Linux - Ubuntu/Debian/CentOS/RHEL/Fedora/FreeBSD * Azure/Amazon AWS/Google Cloud * Nginx/Apache/Lighttpd/LiteSpeed * VPS - OpenVZ/KVM/Xen/Hyper-V/SolusVM/ProxMox * Docker/RancherOS * Linux/Cpanel Server Setup * Server Security - csf/maldet * PHP - Script Installation/Custom coding/Laravel * Ffmpeg/Youtube Clone installation * WHMCS Installation * OpenAI, Gemini, Claude, Deepseek, Ollama, Local LLM, OpenClaw Listed on FreeLancer Security Hall Of Fame - Yujin Boby (@serverokin) https://www.freelancer.com/about/security/hall-of-fame 收起 -
雇用 touhidecevw
✅As a highly skilled and experienced network and system administrator with over 11 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 11 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. ✅Unifi Enterprise Fortress Gateway, 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. ✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch 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, Contabo ✅Hyper-V, VMware ESXi, VMware Workstation, VirtualBox, KVM, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration , 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 ✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems. ✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication. 收起 -
雇用 minuthomas
I can help you in the below mentioned areas: AWS Serverless Github Actions Linux Server Administration New server installation/configuration Webhosting related issues cPanel/Plesk/Sentora and other linux based control panel installations and troubleshooting issues related to it Fixing DNS/Mail/FTP/Web/Database...I can help you in the below mentioned areas: AWS Serverless Github Actions Linux Server Administration New server installation/configuration Webhosting related issues cPanel/Plesk/Sentora and other linux based control panel installations and troubleshooting issues related to it Fixing DNS/Mail/FTP/Web/Database related issues Server hardening and updating security patches Fixing issues with Spamming/Spoofing/hacking and securing the servers Shell scripting Custom software installation and configuration 收起 -
雇用 AhmedSaberfl
✅ 𝟖𝟓+ 𝑺𝒖𝒄𝒄𝒆𝒔𝒔𝒇𝒖𝒍𝒍𝒚 𝑪𝒐𝒎𝒑𝒍𝒆𝒕𝒆𝒅 𝑱𝒐𝒃𝒔 (𝑼𝒑𝒘𝒐𝒓𝒌 & 𝒇𝒓𝒆𝒆𝒍𝒂𝒏𝒄𝒆𝒓.𝒄𝒐𝒎) ⭐ 𝟓.𝟎 𝑹𝒂𝒕𝒊𝒏𝒈 ✅ 𝟐𝟎+ 𝑺𝒖𝒄𝒄𝒆𝒔𝒔𝒇𝒖𝒍𝒍𝒚 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 𝑳𝒂𝒓𝒈𝒆-𝑺𝒄𝒂𝒍𝒆 𝑷𝒓𝒐𝒋𝒆𝒄𝒕𝒔 🏆 𝟏𝟖+ 𝒀𝒆𝒂𝒓𝒔 𝒐𝒇 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 𝒊𝒏 𝑰𝑻 𝒊𝒏𝒅𝒖𝒔𝒕𝒓𝒚 🥇 𝟳 𝑪𝒍𝒐𝒖𝒅 𝒂𝒏𝒅 𝑫𝒆𝒗𝑶𝒑𝒔 𝑪𝒆𝒓𝒕𝒊𝒇𝒊𝒄𝒂𝒕𝒆𝒔 (𝑲𝒖𝒃𝒆𝒓𝒏𝒆𝒕𝒆𝒔, 𝑨𝑾𝑺, 𝑶𝑪𝑰, 𝑮𝑪𝑷) I’m a multi-skilled 𝘿𝙚𝙫𝙊𝙥𝙨 and 𝑪𝒍𝒐𝒖𝒅 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 𝑨𝒓𝒄𝒉𝒊𝒕𝒆𝒄𝒕 with over 𝟭𝟴 𝒚𝒆𝒂𝒓𝒔 𝒐𝒇...✅ 𝟖𝟓+ 𝑺𝒖𝒄𝒄𝒆𝒔𝒔𝒇𝒖𝒍𝒍𝒚 𝑪𝒐𝒎𝒑𝒍𝒆𝒕𝒆𝒅 𝑱𝒐𝒃𝒔 (𝑼𝒑𝒘𝒐𝒓𝒌 & 𝒇𝒓𝒆𝒆𝒍𝒂𝒏𝒄𝒆𝒓.𝒄𝒐𝒎) ⭐ 𝟓.𝟎 𝑹𝒂𝒕𝒊𝒏𝒈 ✅ 𝟐𝟎+ 𝑺𝒖𝒄𝒄𝒆𝒔𝒔𝒇𝒖𝒍𝒍𝒚 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 𝑳𝒂𝒓𝒈𝒆-𝑺𝒄𝒂𝒍𝒆 𝑷𝒓𝒐𝒋𝒆𝒄𝒕𝒔 🏆 𝟏𝟖+ 𝒀𝒆𝒂𝒓𝒔 𝒐𝒇 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 𝒊𝒏 𝑰𝑻 𝒊𝒏𝒅𝒖𝒔𝒕𝒓𝒚 🥇 𝟳 𝑪𝒍𝒐𝒖𝒅 𝒂𝒏𝒅 𝑫𝒆𝒗𝑶𝒑𝒔 𝑪𝒆𝒓𝒕𝒊𝒇𝒊𝒄𝒂𝒕𝒆𝒔 (𝑲𝒖𝒃𝒆𝒓𝒏𝒆𝒕𝒆𝒔, 𝑨𝑾𝑺, 𝑶𝑪𝑰, 𝑮𝑪𝑷) I’m a multi-skilled 𝘿𝙚𝙫𝙊𝙥𝙨 and 𝑪𝒍𝒐𝒖𝒅 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 𝑨𝒓𝒄𝒉𝒊𝒕𝒆𝒄𝒕 with over 𝟭𝟴 𝒚𝒆𝒂𝒓𝒔 𝒐𝒇 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 working across enterprise, telecom, startup, and freelance projects. My expertise spans the full stack of modern infrastructure—including cloud computing, OS administration, databases, middleware, CI/CD, container orchestration, and security. I’ve designed, implemented, and managed large-scale production environments both on-premises and across multiple clouds (𝑨𝑾𝑺, 𝑶𝑪𝑰, 𝑮𝑪𝑷), delivering highly available, secure, and automated infrastructures. I am an 𝑶𝒓𝒂𝒄𝒍𝒆 𝑭𝒖𝒔𝒊𝒐𝒏 𝑴𝒊𝒅𝒅𝒍𝒆𝒘𝒂𝒓𝒆, 𝑰𝒅𝒆𝒏𝒕𝒊𝒕𝒚 & 𝑨𝒄𝒄𝒆𝒔𝒔 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 (𝑰𝑨𝑴), 𝒂𝒏𝒅 𝑫𝒂𝒕𝒂𝒃𝒂𝒔𝒆 Specialist with 𝟏𝟖+ 𝒀𝒆𝒂𝒓𝒔 𝒐𝒇 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 delivering enterprise-grade solutions across government, telecom, and multinational clients. 𝗣𝗦: I am not accepting any job related to adult content and pornography, alcohol/drug, banks, Israel, illegal access, or anything against the law. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀: ========= ✅ 𝑪𝒆𝒓𝒕𝒊𝒇𝒊𝒆𝒅 𝑲𝒖𝒃𝒆𝒓𝒏𝒆𝒕𝒆𝒔 𝑨𝒅𝒎𝒊𝒏𝒊𝒔𝒕𝒓𝒂𝒕𝒐𝒓 (CKA) ✅ 𝑴𝒖𝒍𝒕𝒊-𝒄𝒍𝒐𝒖𝒅 𝒆𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆: AWS, Oracle Cloud (OCI), GCP, Azure ✅ 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏: Infrastructure as Code (Terraform), Ansible, GitOps, CI/CD pipelines ✅ 𝑪𝑰/𝑪𝑫 𝑻𝒐𝒐𝒍𝒔: (Jenkins, Argo Workflow, ArgoCD, Argo Events, Gitlab CI/CD, Bitbucket pipeline, GitHub Actions, SonarQube …etc.) ✅ 𝑳𝒐𝒈 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 & 𝒂𝒏𝒂𝒍𝒚𝒔𝒊𝒔 (ELK stack (Elasticsearch, Logstash, Kibana)) ✅ 𝑪𝒐𝒏𝒕𝒂𝒊𝒏𝒆𝒓 𝒑𝒍𝒂𝒕𝒇𝒐𝒓𝒎𝒔: Kubernetes, Docker, OpenShift, Rancher ✅ 𝑴𝒐𝒏𝒊𝒕𝒐𝒓𝒊𝒏𝒈 & 𝑳𝒐𝒈𝒈𝒊𝒏𝒈: Prometheus, Grafana, ELK Stack, CloudWatch ✅ 𝑫𝑩 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕: Oracle RAC/Data Guard, PostgreSQL, MySQL, MS SQL ✅ 𝑶𝒓𝒂𝒄𝒍𝒆 𝑭𝒖𝒔𝒊𝒐𝒏 𝑴𝒊𝒅𝒅𝒍𝒆𝒘𝒂𝒓𝒆 𝒊𝒎𝒑𝒍𝒆𝒎𝒆𝒏𝒕𝒂𝒕𝒊𝒐𝒏 (WebLogic, WebCenter Portal, Webcenter Content (UCM), WebCenter Sites, ECM, SOA, OSB, BPM) ✅ 𝑶𝒓𝒂𝒄𝒍𝒆 𝑰𝒅𝒆𝒏𝒕𝒊𝒕𝒚 𝒂𝒏𝒅 𝑨𝒄𝒄𝒆𝒔𝒔 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 Implementation (OIM, OID, OAM) ✅ 𝑺𝒄𝒓𝒊𝒑𝒕𝒊𝒏𝒈: Bash, Python, Powershell 𝗠𝘆 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: ========================= 🥇 Certified Kubernetes Administrator 🥇 AWS Certified Solutions Architect 🥇 Google Cloud Associate Cloud Engineer 🥇 Oracle Cloud Infrastructure (Associate & Professional) 🥇 Oracle Cloud Infrastructure Certified Cloud Operations Associate 🥇 Oracle Autonomous DB Specialist 🥇 Oracle Weblogic Administrator 🥇 Microsoft Certified Systems Engineer 收起 -
雇用 gattes
I am an AWS Certified (SA/PRO) with over 10 years work experience with Linux (Ubuntu/Debian & RHEL/CentOS/AlmaLinux/Rocky/Oracle) specialized in backend development, DevOps engineering, as well as Docker and Kubernetes orchestration. My expertise lies in building scalable, secure, and efficient cloud infrastructures...I am an AWS Certified (SA/PRO) with over 10 years work experience with Linux (Ubuntu/Debian & RHEL/CentOS/AlmaLinux/Rocky/Oracle) specialized in backend development, DevOps engineering, as well as Docker and Kubernetes orchestration. My expertise lies in building scalable, secure, and efficient cloud infrastructures for small, medium and large sized companies. Some of my skillset includes: - +10 years Linux Systems Administration (Linux/Unix mainly - Ubuntu/Debian & RHEL/CentOS) - +8 years providing cloud solutions and support (AWS Solutions Architect PRO Certified) - Backend programming (python, golang, Java, Bash) - CI/CD (Jenkins/CircleCI/Github Actions/Gitlab Runners) - Automation (Puppet/Ansible) - Container management (Docker & ECS/k8s) Toolkit: - AWS, Terraform, Docker, Kubernetes, Jenkins, GitLab CI/CD, Python, Node.js, PHP, MySQL, PostgreSQL ..... Monitoring Tools: Prometheus, Grafana, New Relic I speak Spanish (native), English (expert) and Italian (advanced). For more information, check my github projects page: https://github.com/mgagliardo 收起 -
雇用 kahlonkamal318
19 Years experience as Linux/Unix Admin, System/Storage/Server Admin, Virtualization Expert => Install and troubleshoot anything on Linux/Unix, Windows => Centos, RHEL, Ubuntu, Debian, Cloudlinux, Windows => Backup, Recovery, System boot and kernel issues => Server Security and Hardening: FIREWALLD, UFW, IPTABLES,...19 Years experience as Linux/Unix Admin, System/Storage/Server Admin, Virtualization Expert => Install and troubleshoot anything on Linux/Unix, Windows => Centos, RHEL, Ubuntu, Debian, Cloudlinux, Windows => Backup, Recovery, System boot and kernel issues => Server Security and Hardening: FIREWALLD, UFW, IPTABLES, Selinux, Fixing Security vulnerabilities => User, Disk, File Management,Linux Networking/Routing, ISCSI, Multipath, LVM, Partitions => Servers: Cisco, HP, IBM, Dell, Supermicro => Hardware and Software RAID, SAN/NAS Storage => Virtualizor, KVM, Xen, ESXI, VirtualBox, VMware, Vcenter Converter => Apache, Nginx, Mysql, RDS, SSL including Letsencrypt, cPanel, Webmin, Plesk => AWS, GCP, Digital Ocean => NTP, SSH, SQUID, DHCP, BIND, Postfix, Sendmail, VNC, Kannel, HA-Lizard, DRBD, XCD-NG, RSYNC, ISCSI, Multipath, NFS, VSFTPD, Samba => WHMCS, Opencloud, Nextcloud, Zulip, OpenVPN, Polr, Odoo, Advandate, Openmeetings, TOR, Keycloak, Rocket chat, Opencanary, eSignForms, Apache Nifi 收起 -
雇用 jbosseu
Started working as a Java and PHP developer before advancing into servers, cloud and network security. Worked as support executive for multiple webhosting data centers. Worked with cpanel, directadmin, plesk, aws, digital ocean, google cloud servers for over 15 years. I concentrate mostly on single and medium scale...Started working as a Java and PHP developer before advancing into servers, cloud and network security. Worked as support executive for multiple webhosting data centers. Worked with cpanel, directadmin, plesk, aws, digital ocean, google cloud servers for over 15 years. I concentrate mostly on single and medium scale projects, however large scale projects are definitely a part of my goal to be involved with a talented and coordinated team. 收起 -
雇用 uhjk
I've been on internet since 1996. I always tried to do something with programming. Started with mirc scripting, then created my own websites (I had 1500+ websites when it was 2005) and earned a lot of money with domain parking and google adsense. Since I was not so good with programming, I was asking help from other...I've been on internet since 1996. I always tried to do something with programming. Started with mirc scripting, then created my own websites (I had 1500+ websites when it was 2005) and earned a lot of money with domain parking and google adsense. Since I was not so good with programming, I was asking help from other people. But as you probably guess, I had many many problems with programmers. Then, I decided to improve my programming skills. Finally, I realized that coding is the coolest thing in the world. I feel better when I help other people over the world. This is how I became freelancer programmer :) I love coding and ready to help you. - Web Scraping / Crawling - Data extraction - Data conversion - API Integration - Wordpress plugin 收起
