Network & System Administrators

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Alfonso Valdes

Alfonso Valdes

Linux / Amazon AWS / WHM WordPress / Nginx / Security / Docker DevOps

Mexico - Tests: 4 - Portfolio: 6

A self-motivated System and Network security administrator with more than 10 years in the management and analysis of Linux/Unix enterprise Servers (60- 70 servers). With deep and advance knowledge of highly scalable servers, Cloud Computing, High Performance, Hardening Servers, Migrations, Ethical hacking, Development Operations - DevOps, Open Source services and Server optimization. Lately Building WordPress hosting environments highly available and scalable in AWS/DigitalOcean/Google Compute/Azure. Certifications such as: Certified Ethical Hacker - Red Hat Certified Engineer - Cisco CCNA. Expertise in: MIGRATIONS: Wordpress/Magento/LAMP/Cpanel migrations. Helped dozens of clients migrate their web sites and applications into the AWS, Digital Ocean, Google Cloud Compute. Design and build Web Servers with HIGH PERFORMANCE (LAMP, NGINX/python, Nginx/Varnish, Nginx/php-fpm, Jboss, Apache Tomcat and Varnish) - Improve and Fix performance issues, service optimization, security issues and deployments. WORDPRESS HIGH PERFORMANCE AND TRAFFIC SITES IMPLEMENTATIONS: Improve Wordpress performance, design a cloud hosting with complex services using Wordpress, Wordpress multisite, wordpress + woocommerce, wordpress with NGINX/varnish , integration with CDN, Memcached/Redis, Amazon S3, etc etc. Build an entire HOSTING environment from design, implementation and maintenance. MALWARE removal and analysis: WordPress / Magento / Joomla Malware removal and remediation, Incident handling and Forensics analysis. BOOST and optimize websites with: NGINX, Varnish, REDIS, Amazon S3, Memcached, APC, apache tunning and mysql tunning, Amazon CloudFront and more. Amazon Cloud Computing ( AWS ) - AMAZON EC2, Amazon CDN S3, Amazon RDS, Amazon ELB, Amazon AutoScaling, Amazon VPC, CloudFront, Route53, etc. Also Management of multiple Control panels like Rackspace Cloud Computing, SoftLayer, GoDaddy, HostGator, dreamhost and MediaTemple. DevOps and Continuous integration: Docker + vagrant, Vagrant + Puppet, Puppet + Git, Docker + Ansible. Continuous integration with Jenkins, travisCI, distelli and more... Designing and deploying scalable & Highly available systems such as: Amazon Load Balancing (ELB), Hearbeat, HAProxy, Mysql cluster, Nginx Load Balancer, Apache cluster... Network and web security such as: Vulnerability Assessments, Hardening servers, security audits, Penetration testing, Virus/Malware/Threats/Vulnerabilities countermeasures, web security, fail2ban, Tripwire-AIDE-OSSEC, mod_security, mod_evasive, Denial of Services (DDOS) countermeasures, Firewalls (iptables, CSF and apf), etc. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, maintenance and high level of Administration. Databases Administration such as: Mysql tweaking and tunning, MongoDB, load balancing and Mysql replication (Master & Slave) for High traffic. Database: Mysql tweaking and tunning, MongoDB, ElasticSearch, Apache Solr, Sphinx, lucene, MariaDB, Postgresql replication & Pgpool, Mysql load balancing and Mysql replication (Master & Slave) for High traffic. Networking: TCP/IP high expertise, NAT, FIREWALLS, CISCO routing and switching and Packet analysis with tcpdump and wireshark. Storage solutions and Directory management: SAMBA, NFS, FTP and sftp. LVM and RAID*. SCRIPTING: Bash and python. Proficient with MAIL Servers: postfix, sendmail and Zimbra. Source control versioning: GIT and SVN. Deploying and maintaining Monitoring systems such as: nagios, ZAbbix, cacti and Jboss Operation Network (JON). Research & development (R & D) for any open source service and technology.

$24.80 /hr
11,604 hours

Alexey Kucherenko

Alexey Kucherenko Agency Contractor

Node.js full stack expert developer

Russia - Tests: 20 - Portfolio: 14

Last 3 years working only with * Back-end: NodeJS * Front-end: Angular.js / Backbone.js * TDD/BDD: Mocha, Sinon.js, should.js, jasmine, chai, protractor (server/client) Experienced in WebRTC * Chrome/Firefox native API * Opentok/TokBox API * Vidyo API Other experience: .NET Framework / ASP.NET MVC / SQL Server / Azure / AWS / Heroku / PHP / Zend Framework / Kohana / Yii / CodeIgniter / Ruby / Rails / Sinatra / Vert.x / MySQL / PostgreSQL / Python / Django / Redis / MongoDB / SQLite / node.js / express.js / socket.io / CoffeeScript / Backbone.js / Angular.js / Require.js / Bootstrap / HTML5 / CSS3 / LESS / Javascript / jQuery / TDD / BDD / Git / Mercurial / SVN / GitHub / BitBucket

$50.00 /hr
5,471 hours

Jagdish H.

Jagdish H. Agency Contractor

Mobile App, iOS, Swift, Android, Titanium, PhoneGap, Ionic, PHP, Ruby

India - Tests: 17 - Portfolio: 72

10+ Experience in development of Mobile and Web Application. • Excellent Hands on coding experience with designing skill and integration of codes. • Committed to assignments, capability to withstand pressures & ability to produce within deadlines. • Good communication and user interaction skills, capacity to work with a team sincerely and dedication towards work and organization. •Expertise in Adaptor handling includes Drag & Drop, Cache Lazy List, Endless Adapter , Pull To Refresh, Horizontal Pager implementation, •Advance knowledge of web Services implementation and Parsing for SOAP, XML or JSON format, JSON parsing and RSS feed handling •Advance knowledge of Fragment, Widgets and Weather API implementation. •Advance knowledge of Social SDK (Facebook, Twitter, LinkedIn, Fore-square, Google plus) •Advance knowledge of Integration of Bluetooth Printer (D-250), Socket 10 Scanner with SDK (hardware) Core expertise is focused around SIX key areas: 1. Native Mobile Application Development: -Apple iOS: iPhone, iPad, iPod compatible apps using Xcode and Objective C -ANDROID: Phone, Android Tablet compatible apps across all resolutions -BLACKBERRY: Phone, Playbook application development -QA: Testing and quality assessment -Digital Branding and Promotion for Mobile Applications -Mobile Device Management -Web back-end for content updates in Mobile applications -Mobile application integration with databases like MySQL, SQL, MS Access, Oracle, Sybase, SAP.. 2. Cross Platform Mobile Application Development -TITANIUM based cross platform applications for iOS, Android and Blackberry Phones and Tablets -PHONE GAP based applications for iOS, Android, Blackberry and Windows Phones and Tablets -HTML 5 based web applications -QA: Testing and quality -Digital Branding and Promotion for Mobile Applications -Web backend for content updates in Mobile applications -Mobile application integration with databases like MySQL, SQL, MS Access, Oracle, Sybase, SAP.. 3. Web Application Technologies - Ruby, Ruby on Rails Frontend Basic: HTML5/CSS3, Javascript, ajax, bootstrap JS framework: Jquery, Backbone.js Rails toolbox: HAML, Simple Form, Coffeescript, SAAS, Compass, Twitter-Bootstrap-rails Ruby Toolbox Skill Ruby Versions - 1.9.2, 1.9.3, rails Versions - 3.0, 3.1, 3.2 Rails Frameworks - MVC Rails testing tools: Cucumber, Rspec Rails social network builders: SAAS Rails eCommerce frameworks: Spree, Active Merchant Rails CMS framework: Refinery API Integrating: Facebook, Twitter, Google -DBA Skill MySQL, PostgreSQL, MongoDB, Couch DB -Cloud Computing Heroku, Amazon EC2, Engine Yard, Codeship -Rails IDE Skill Aptana, Sublime text -Project Management Tool Skill SVN, Git, GitHub, -Linux OS Skill Ubuntu 12.04 4. Web, CMS and Cloud based services and solutions: -End to end Drupal, Joomla, Wordpress- Design, Development, Upgrades, Theming, Migration, QA and Training -Web Security: Consultancy and Implementation -E-Commerce, Social Network, Aggregator Portal development -Payment gateway integration. -Load Balancing and CDN implementations for big websites -Quality Assessment and Testing: Manual/Automated -Server side set up, monitoring, reporting and consultancy 5. Social Media Integration -Fb, Twitter, Youtube etc channels' integration with Mobile and Web applications -Facebook application development -Social Media integration: Measurement and consultancy. -Online reputation management services Looking forward to provide you highest quality of coding and solutions at most competitive rates!

Groups: Application Developers Alliance, Corona Labs

$25.00 /hr
4,035 hours

Amit S.

Amit S. Agency Contractor

Magento CE-Enterprise Expert,Custom Extension,Server Administrator

India - Tests: 10 - Portfolio: 5

With the last 6 years of experience I have Designed, developed, and supported 50+ Magento Extensions including Magento Enterprise Version , Magento Enterprise Extensions / Modules , payment gateways , Dynamic Feed manager , extra features for enhancing user experience and 25+ Magento Project from Scratch. I had also Experience of large Customized PHP, Zend Projects , Server Administration , AWS ,Shell (Linux) Scripting and MySQL Procedure and trigger Implementation. I am seeking opportunities to work and build Projects from scratch or Magento Extensions.

$21.00 /hr
5,388 hours

Rakesh T.

Rakesh T. Agency Contractor

PHP, Mysql, Magento, E-commerce, SugarCRM, Payment Gateways Expert

India - Tests: 4 - Portfolio: 5

Over the last 11 years, I have developed a wide range of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. From last 7 year I have worked on many magento projects I also have some experience in the following areas: MySQL, Ajax, OOP, magento, Payment Gateways, wordpress and software design and testing.

$12.00 /hr
1,448 hours

Simranjeet Singh

Simranjeet Singh Agency Contractor

Virtual Assistant Team Manager and Project Manager, Available 24x7

India - Tests: 4 - Portfolio: 4

I have been working as IT Trainer and Data Entry Team Manager for Past 10 Years. I am avail 24/7 in oDesk and Skype. I am an extremely fast-learner and can follow instructions quickly. Also I manage to learn any task/software in seconds. I am here to provide Accurate solution to employers need. As i am hard worker, sincere due to my services,highly self motivated and seeking for new challenges to achieve targets so my first priority is the satisfaction of my clients.I would like to invest my skills and attentions to deserving people. 'I love good earning with my hard work as compare to my services and skills. I am Working as Data Entry team manager from 2002. We have done lot of Govt. and Non Govt. Projects.I have Data Entry team of 26 Members. ( 12 Member's are working as Full time and 14 Members are working as Part time or on call basis). We are able to Complete Any task related to admin support Services within very short time duration. I am Able to Extend my team to 50 or more members to my team. I Have following Experience:- 1. MS Office 2000/2003/2007/2010 (Word,Excel, Power Point, Access, Outlook and One Note) with use of Macros. With Very Good Data Entry Typing Speed. 2. Internet Technologies :- Web Browsers, Live web Chat, Instant Messengers, Data Mining, Data Internet, Social Networking, Blogs, Articles, IT Questions, Youtube Video Uploads, Internet Marketing, etc. 3. Training :- Creating PPT Slides, Video Tutorials by Screen Capturing Softwares like Camtasia Studio, Webinaria, etc. Softwares. 4. Web Designing :- Photoshop, Coraldraw, HTML 4, HTML5, CSS, Dreamweaver, Notepad++. 5. IT Support :- Very Good Knowledge of Windows 98/ 2000/ XP / 7 / Vista. (I have Very Good knowledge of Windows XP and Windows7, I can also Provide Training for MCP [Microsoft Certified Professional] Course.), Administration of Server 2003/2008 (DHCP, RIS, Group Policy, Software Deployment, Windows Diployment Service, FTP, Basic and Dynamic Disk, Disk Quota etc.) Hardware Troubleshooting, Data Recovery, LAN Networking, Remote Administration via Ammyy Admin, Remote Assistance, Team Viewer, and Linux Administration. ALL these Information's are Correct and Honestly Entered by Me. I am always Ready and Available for Any Kind of Test or Interview for These Topics.

$5.56 /hr
7,704 hours

Puneet Singla

Puneet Singla Agency Contractor

PHP | Mobile Programming |

India - Tests: 7 - Portfolio: 1

Having 8+ years of experience with Web and Mobile Application development with good experience of PHP, Javascript, Jquery, CSS, ASP.NET, iPhone, Android SQL Server (MySQL and MSSQL), LINQ, Entity Framework, Web Services, HTML, Jquery, CSS, Debugging and Web Services. I also have familiarity with relational databases such as MySQL and Oracle and an understanding of RESTful Web Services technologies such as JSON, SOAP, and HTTP. As a self-motivated, solutions-oriented and passionate individual, I have been actively involved in implementing WordPress security best practices and have considerable knowledge of PHP, XSS, CSURF and MySQL Injection. With over five years’ experience with jQuery, HTML and CSS3, I have been able to develop interactive websites which have been commended for their functionality many times. Also, since I possess great familiarity of APIs and JSON, I believe that I will not need any training and will be productive immediately. My experience also includes building Responsive and Mobile Experiences and in software engineering using source code management tools such as GIT/ Bitbucket and SVN.

$15.00 /hr
3,183 hours

Priya Shahi

Priya Shahi Agency Contractor

Core PHP |Angular.Js | Node.Js|UI / UX | Magento |Mobile App

India - Tests: 4 - Portfolio: 5

Over the last 8 years, I have worked on a wide range of websites using HTML, DHTML, AJAX, jquery/javascript, PHP, and MySQL including sites for startup companies and small businesses. I am also good with web designing, logo design, corporate identity design, graphic designing etc. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: software design and testing. PS: 100% money back guarantee if you will not be satisfied with my performance.

$16.67 /hr
1,109 hours

Hien Nguyen-Van

Hien Nguyen-Van Agency Contractor

Ruby on Rails | Mobile | CSS | HTML5 | Javascript

Vietnam - Tests: 10 - Portfolio: 16

I founded NUS Technology in 2013, which is now globally ranked in the TOP 20 of the highest level software outsourcing companies on Elance. I've got more than 15 years of experience in IT, including but not limited to: + Software Start-up Management + Strategic Planning + Project Management Professional (PMP), CMMI Appraisal Team Member (ATM), and ISO 9001:2008 Internal Auditor + Project, program, and portfolio management: knowledge, skills, and experience. + CMMI for Development and SCAMPI method at theoretical and practical level + Organizational standard process definition which conforms to ISO 9001:2008, Agile, RUP, CMMI and PMBOK + Process assessment and improvement through SEPG activities + Quality Control and Quality Assurance + Business Analysis in various domains such as: procurement and acquisition, healthcare content management, customer relationship management, etc My specialty also includes: Application Technologies: Ruby, Ruby on Rails, iOS Web Application Technologies: AJAX, ExtJS, Javascript, JSON, jQuery, CSS3, HTML5 iOS Technologies: iOS 6, iOS 7, Storyboard, Keychain, AFNetworking, Core Data, SQLite, Facebook, Twitter, Google Maps, Mapkit, Mapbox, Stripe, Test Flight UI Frameworks: Twitter Bootstrap, Zurb Foundation, Backbone, Angular Testing Tools: RSpec, Cucumber, Watir, Capybara Database Platforms: PostgreSQL, MySQL, AllegroCache, RRD, MS SQL Server, MongoDB Operating Systems: Linux, Windows, OS X Cloud Platforms: Heroku, AWS, DigitalOcean, Hostgator, GoDaddy Others: Stripe, Paypal, Checkout, Facebook API, Google Map API, CMS Management Process: I have defined and followed standard processes which comply with Agile, or PMBOK, or CMMI. Customization is easy and based on customer's need

$20.00 /hr
7,269 hours

arun prasher

arun prasher Agency Contractor

Wordpress, Optimizepress, Buddypress, Woocommerce

India - Portfolio: 9

My aim is to provide the top quality work while meeting deadlines. I am working as a Wordpress developer from last 7+ years now and have created, customized more than 100 Wordpress, buddypress, Woocommerce, Learndash, Nette framework websites in the past. I too have expertise of working with various Wordpress frameworks like Nette Framework, Genesis Framework and many more and have created many membership websites using the same. My Expertise: - Learndash : Websites creating and customizing using Learndash - Wordpress theme creation - Woocommerce and wordpress ecommerce - custom post type and widget creation - wordpress plugin development and customization - Responsive website - Speed Optimization - Code optimization - API Integration - Paypal, Paypal Pro, Authorize.net, Payspace Integration - Buddypress - Membership websites - PSD to HTML Conversion

$10.00 /hr
4,438 hours