Linux Freelancers

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Umar Draz

Umar Draz

Sr. Unix/Linux System/Network Architect

Pakistan - Last active: 2 days ago - Tests: 2 - Portfolio: 5

Senior systems architect, UNIX/Linux/Solaris, VMware, OpenStack and data-center administrator, software programmer, project leader with a proven track record of applying years of experience and good practices to the specification, architecture, design, implementation and maintenance of communications information technology systems. Well-versed in the latest computer languages, operating systems, network and system administration techniques, seeking a position where my hands-on self-motivating passion with the technology provides me with a unique understanding of how to balance conflicting requirements and bring complex enterprise level IT projects to a successful completion. Ability to work both independently and as part of a team, with demonstrated results in leading and contributing to projects, interfacing with stakeholders, while training and mentoring junior staff. Also great at troubleshooting complex problems. LANGUAGES: HTML, JavaScript, Perl, PHP, LAMP, Regular Expressions, Bourne/Korn/Bash/Csh/Tcsh Shells, Structured Query Language (SQL), Python. TOOLS: Application Servers (Apache, JBoss, Tomcat, Nginx,), DBMS (Access, DBase III/IV, MySQL, Oracle, MongoDB), UNIX Scripting (all UNIX Shells, AWK, Perl, SED), Security Hardening and Performance (IP Filter, Fail2ban), Storage, Moosefs, Virtualization (SANS, NAS, VMware vSphere Server/vCenter, OpenStack, Xen)

$33.33 /hr
3,897 hours
5.00
Sampath I.

Sampath I.

AWS / Linux / EC2, RDS, VPC, Cloud Formation,Autos...

India - Last active: 8 days ago - Tests: 4

Having more than 8 years of experience in Linux/Unix IT world, from installation, configuration of OS, packages, designing High Available (HA) and Salable environments. Worked for various clients and domains - IT Telecom, E-commerce , Real-estate, Mobile and Pharma clients. More than 5 years of experience in Amazon Web Services ( AWS ), EC2, RDS, VPC, S3, etc. Designed and implemented HA and Auto Salable environments. Worked on Hardening security, Cost optimization and Performance Optimization. Load Balancing, Backup and Disaster Recovery ( DR ) environments. Managed and monitored 1000+ VMs for 50+ clients using various tools and scripts. Automated environment backups, deployments, scaling using various tools, scripts and REST API command line tools. Built tools to Vertical and Horizontal scale in and out. Regular security audits, cost optimization, backup audits. I am always look for new challenges and love my work.

$50.00 /hr
645 hours
5.00
Nallamala V.

Nallamala V.

Docker / AWS/ GCE/ Azure/ Linux/ LAMP / DevOps/ Po...

India - Last active: 2 days ago - Tests: 4

Docker & AWS & Azure & Google Compute Engine & Cloud and System administration & Production Support & Migrations & Cost Optimization & Security hardening & Performance Tuning & High availability & 24/7 detailed Monitoring & Automation & Continuous Integration & Chef & Ansible & Jenkins & LAMP & Shell Scripting EXCLUSIVE SERVICES: Docker, Ansible, Cloudformation CLOUD ASSESSMENT AND STRATGEY: Rapidly evaluate, define opportunities & the roadmap to move your IT to the Cloud. Create the optimal platform for building Systems of Engagement. I will help you develop your cloud strategy to ensure seamless and effortless migration of applications, platforms and infrastructure. DESIGN & IMPLEMENTATION Create high available and scalable architecture keeping the infrastructure and maintenance at cost at minimum. DATA CENTERS TO CLOUD MIGRATIONS (LIFT n SHIFT): Pre-migration readiness assessment. Services to seamlessly migrate your infrastructure to the cloud without any business downtime along with processes for security, backup and DR CLOUD AUTOMATION AND OPTIMIZATIONS Run your infrastructure with high efficiency by optimising and automating cloud deployments. Cost and Performance optimization. DEVOPS SERVICES Make use of industry best practices to automate the infrastructure provisioning, scaling , backup, monitoring, patch updates, code deployments TECHNOLOGY EXPERTISE: Public Clouds: AWS, Azure, Google Compute Engine Stack Migrations and Deployments: LAMP/LEMP( Wordpress, Drupal, Magento, Joomla etc), Java, RoR, .Net, Python(Django), Node.js OS Administration: Linux, Windows, Mac Web/App Servers Administration: Apache, Nginx, HAProxy, Tomcat, JBoss, IIS, Puma, Rails, Database Administration: MySQL, Postgres, SQL, Mongo, Cassandra Cache Mangament: CDN, Redis, Memcached, Varnish Automation Tools: Chef, Ansible, Jenkins, Docker Monitoring Tools: Nagios, Zabbix, NewRelic, Data Dog, Opsview Security: OpenVPN, Nessus, OSSEC Experience: Migrated 300+ Applications to AWS, Azure and GCE. Managed 10000+ VM instances in cloud. Migrated and Managed high popular applications to cloud. Designed highly scalable , available and secured architectures for popular e-commerce and Enterprise applications. Migrated and managed HIPAA complaint applications.

$49.00 /hr
2,439 hours
4.81
Vinoth kumar K.

Vinoth kumar K.

Expert Web Scraper, Automation Developer - Web/Des...

India - Last active: 3 days ago - Tests: 7 - Portfolio: 5

- Web Scraping/Crawling (using NodeJS, PhantomJS/CasperJS, CheerioJS, Python, PERL & Java) - General Automation (Web/Browser/Desktop) - Greasemonkey/Tampermonkey scripts - General Scripting (Python, PERL, Shell Scripting) - UNIX command-line tools, VIM Try me. You won't be disappointed. What have I got to offer? I’ve got some really good experience & expertise in automation (web & desktop - Linux, Win & OSX), quick scripting & general coding. You can always trust me with almost any automation/coding requirements (ex. unix command line tools, developing quick scripts, tweaking existing scripts, web scraping/crawling, creating APIs) at a fair price and a very quick turnover. When I deliver a piece of code/script, I’ll make sure that it is professionally written (to the highest quality & efficiency) and that it has a proper README file (on using it in your local system/host). For clients who are interested only in the output, I’m by all means fine to run it on my set of hosts and give them the expected output (in the requested format - TXT, CSV, JSON, XML, XSLX, DOCX, Insert directly into a DB etc.). Exclusive Experience? Web scraping & web crawling are clearly a part of automation and just here in oDesk, I’ve scraped close to 300 websites (all types - static pages, javascript/AJAX heavy websites, CAPTCHA posing websites, IP banning websites etc.) and I’m pretty comfortable with this. About me? I’m passionate about coding and so I always keep learning something new or look around github for some interesting projects to contribute. To me all programming languages are just a set of syntax rules - anyone with strong DS & Algorithm knowledge can learn and master them in days/weeks. Preferred OS: Linux, Preferred Editor: vim Work Style? My approach for any fixed price automation job is - 1. Analyse the requirements 2. Come up with a time & price estimate & Review it with the client 3. Develop a quick sample script 4. Generate a sample output of the code and send it to the client for suggestions/corrections 5. Tweak the script to accommodate the suggestions 6. Develop a full fledged perfect script 7. Run the script to get the final output 8. Send the output (and/or script according to the job) to the client for a ‘thumbs up’ 8. a. By this stage we shouldn’t be having any changes in script, but if at all the client has any last minute changes, I can accommodate them, give a fresh run/output 9. Send any other related stuff - like README file, if the script needs to be run at the client’s end 10. Get paid & reviewed 11. If unsatisfied, I’m willing to give back all the money paid by the client. If at all you want to interview me, I’m available at Skype (ID: vdraceil) Looking forward to many great work experiences.

$33.33 /hr
138 hours
5.00
Muhammad Yousuf

Muhammad Yousuf

VoIP/Linux Administrator

Pakistan - Last active: 4 days ago - Tests: 2 - Portfolio: 1

I always love to learn new technologies and try my best to accomplish new and challenging tasks. 1. Complete IP PBX from scratch (Asterisk and freepbx) 2. Elastix (call center, fax server) 3. PIAF (With all Nerd Vittels scripts and tricks) 4. Trixbox and Freepbx Distro 5. Call center applications (Goautodial, Vicidial, Elastix) 6. Broadcast and AutoDialer(Goautodial) 7. VoIP calling card, pinless calling, wholesale, DID reselling (A2billing) 8. CRM with VoIP integration (Vtiger, SugarCRM, SuiteCRM) 9. Security of Servers and VoIP (Firewalls, Monitoring, Aleting) 10. VoIP security (Application security, Brute force attacks prevention, Fail2ban) 11. Monitoring of Servers and services (Nagios, Opsview) 12. High Availability and Failover (Heartbeat, DRDB, Pacemaker, Corosync) 13. Auto Proviosioning of IP Phones (Multiple vendors) 14. Asterisk custom dialplan 15. Fax server (Hylafax, Avantfax) 16. CDR statistics, Centralize CDR server for multiple Asterisk servers. 17. Missed call notifications, Queues reporting for Asterisk 18. Asterisk Operator Panels (Isymphony, FOP2) 19. VPN (OpenVPN, IPsec, PPTP with firewall security) 20. IVR (Database Backends) 21. Asterisk Integration with Digital PBXs i.e. Avaya, Nortel(sip trunking and PRI trunking) 22. GSM gateways with Asterisk (Openvox, GoIP, Dinstar, Quescom) 23. Networks (Switching, Routing, Security, Monitoring, Alerting, Optimization) 24. Firewalls (Pfsense, UTM, IPTables) I have practically experience of all the above mentioned products and technologies and I completed many custom projects using these. I am not limited to only these technologies, I always welcome to know new technologies and environments. I am always ready for a test job to prove my skills :-).

$22.22 /hr
180 hours
4.97
Nitesh J.

Nitesh J.

Server Administrator : Linux / Windows

India - Last active: 2 days ago - Tests: 8 - Portfolio: 3

Over 3+ Years Experience in Server management and Security, WHM Hardening, Live Server Migrations, Critical Troubleshooting, Linux and Windows Server Installation and Configuration, Main area of experience has been in the capacity of a Linux/Unix Technical Support Engineer, assisting project delivery of various sizes. Expertise in the Linux Server Administration, Server hardening and server security, Google Cloud, C-Panel/WHM, Direct Admin,ISPConfig, Plesk Panel, Apache/Litespeed, Nginx, MySQL, basic PHP, Exim, DNS. Linux Shared/Dedicated/VPS (Virtuozzo, Hyper-v) server setup, administration and troubleshooting. Server and application security hardening using Firewall, malware/antivirus tools and other technologies. Backup Management operations and monitoring(Nagios), Backup taken using Rsync, and tar, applications. Installation, configuration, maintenance and troubleshooting of Apache Web servers,Nginx, Database servers, DNS server, Mail servers (Send Mail, Exims) related problems. Troubleshooting common web server/emails/scripting Linux server and network/Internet connections related problems. Configured and Maintaining Joomla, WordPress, Drupal, and Magento services as per client requirements.

$17.78 /hr
604 hours
4.88
Jisin J.

Jisin J.

Senior Linux System Administrator

India - Last active: 3 days ago - Tests: 2 - Portfolio: 1

Providing administration and technical support to web hosting clients via chat and ticketing. Handle different levels of technical issues with servers. Optimizing the server. Familiar with Vituozzo, WHM and cPanel. Configuring and managing users groups, permission levels etc. Backup and Recovery of servers. Installation and Administration of Apache, PHP, MySQL. Apache, PHP recompilations to add-on new modules. Excellent experience in various webhosting and Cloud platforms including AWS / Azure / Vcloud / Rackspace etc. I can also handle development tasks using php, codeignitor, Magento, Wordpress etc.

$16.67 /hr
132 hours
5.00
Deep S.

Deep S.

Linux System Admin/AWS Specialist/Linux and AWS Tr...

India - Last active: 4 days ago - Tests: 9 - Portfolio: 6

Red Hat Certified Architect & Red Hat Certified Datacenter Specialist & Red Hat Certified Engineer. Specialisation in AWS Platform and services such as EC2,S3,RDS,EBS,ELB,AutoScaling,VPC,Route53,CloudFront and other services. Specialisation in Virtualization using VMWare, KVM and Red Hat Virtualization Hypervisor. Hosting virtual Machines on Bare metal servers. Managing virtual machines on VMWare vCenter and RHEV-M Expertise in Hosting LAMP on Cloud and Dedicated Physical Servers. Linux expertise in Red Hat / CentOS / Debian / Ubuntu / Amazon Linux Expertise in providing Remote Server Support - IBM / DELL / HP I've over eight years of experience working in Linux environment and worked on various projects over the year involving Cloud and Dedicated servers. Being sysadmin I have worked on IBM, HP and DELL Rack Mounted Servers. Knowledge of Enterprise Infrastructure technologies and architecture. Worked as consultant on various projects in the past to design and implement an environment which uses SAN, Linux and Clusters to run Applications. Apart from the technical work I am an active member of serverfault.com community and contribute towards community in helping others. Certifications Done: Red Hat Certificate of Expertise in Enterprise Cluster and Storage Management. Red Hat Certificate of Expertise in Deployment and Systems Management. Red Hat Certificate of Expertise in Directory Services and Authentication

$25.00 /hr
377 hours
4.88
Ajin P.

Ajin P.

Linux Server Administrator (cPanel/WHM)

India - Last active: 1 day ago - Tests: 4 - Portfolio: 2

I am a cPanel/WHM server expert with the following knowledge and experience. cPanel Setup and it's administration. Administration of Linux servers. Ticketing and handling client chat Mail Server Administration Exim, Qmail, Postfix. MySQL Data Base Administration. Security updates and application software installation. Implementing security mechanisms and Spam removal. Nginx Installation and Configuration Installation of Softaclous & Fantastico CSF, and IP tables configuration and management. Backup and Restore of hosting accounts. Name server Management and Domain name registration. Blog Administration of clients Bash Shell scripting and perl scripting. Professional Qualifications. B.Tech Computer Science and Engineering Certifications: RedHat Certified Engineer(RHCE) L1: cPanel Base Certification: Technical L1: cPanel Base Certification: Sales Thank you.

$15.00 /hr
493 hours
4.83
Md Probal Rahman

Md Probal Rahman

Network, Firewall and Linux Systems Engineer

Bangladesh - Last active: 1 month ago - Tests: 10 - Portfolio: 3

Network Engineering position that capitalizes on expertise in CISCO Routers/Switches & ASA Firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu etc), Windows 2000/2003/2012 R2 platform. Dedicated to pursue further challenges in the field of Networking Engineering wherein my skills and knowledge will be highly developed and utilized. Maintain focus on achieving end-results while demonstrating strategic problem solving skills and ability to follow through with multi-tasking job. Can work with any new challenges especially in the Networking and System platform with minimum instructions. I am also experienced with other vendor swithces such as 3Com, LinkSys, Prolink etc. Firewalls from other vendors such as NetScreen, Fortigate 1000FA2, SonicWall, Monowall...Confident in HTML troubleshooting, Mail Servers in Linux Platform, RDS in Windows 2008 & 2012 R2, MySQL, SQUID, DHCP/DNS Servers and Opensource applications in Linux platforms..

$33.33 /hr
53 hours
4.96