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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
11,605 hours

Rakeshkumar Patel

Rakeshkumar Patel Agency Contractor

Mobile App Expert - Developed 500+ Mobile Apps

India - Tests: 1 - Portfolio: 26

I have been working with iOS/Android app since 2008. I'm good at developing high quality mobile applications and developed more than 500+ mobile applications in last 5 years. I am CEO of Mobile development Company and MY current focus is on mobile applications for the iPad, iPhone and Android. I feel that the excitement around these products is a game of long run and indicative of this market's potential. I firmly embrace the fact that agility and flexibility are the keys to creating innovative technology So I have started with a small team of energetic developers and have extensive knowledge on bundling the complex enterprise apps. My mission is to enable quality returns on clients' technological investments through best-in-class iOS & Android developers and UI/UX graphical expertise on a global scale. Whether you are - a start-up - an individual - a company - a technical expert - a marketing agency or - a digital agency, I have the perfect solutions for your project and I will take care of your technical requirements. Why Me ? - Core mobile application development and services related to mobile applications - Strictly follow the LEAN principles - Crystal Clear and Pixel Perfect Designs - Amazing Ideas + Technical Consulting + Simplicity + Competence = Great Package - Focused towards success of the application - Effective communication - I believe in a long term relationship with our clients and I mean it. Service Description: I provide quality services on: Mobile iOS development (iPhone, iPad, iPod Touch) Android development (Android mobiles, Android tablets) PhoneGap development Mobile Web development Web C# ASP.NET development PHP Web development Ruby on Rails development CMS Wordpress Joomla! development Drupal development Custom CMS development Design UI/UX development Logo development Splash Screen development Payment Terms: I always prefer to work on flexible payment terms, pertaining to your feasibility. Terms will be set in agreement with the client. However, to provide with the company policy we adhere to in most of the cases: 1) Project below $5k: - 50% upfront - 50% on completion 2) Project between $5k to $10k: - 30% upfront - 40% milestone - 30% on completion 3) Project over $10k: - 20% upfront - Rest I can discuss and set accordingly

$30.00 /hr
4,719 hours

Alex Lysenko

Alex Lysenko Agency Contractor

Linux server support, system administration, DevOps

Ukraine

I am Sales Manager with NIX Solutions Ltd. I represent a great team of system administrators. We have been specializing in the work with Linux, Unix and Windows servers more than 7 years. With NIX Solutions, the IT network and infrastructure of your business will be in strong, reliable hands. We will • Set up and monitor Remote Access (VPN) • Manage your servers (E-mail, Web, Data) • Provide Anti-Virus and Anti-Spam Protection • Manage Webhosting Automation • Provide Security Audit and Consulting for Networks, Servers and Services • Provide 24x7 Technical Support

$25.00 /hr
1,740 hours

Dario Pasok Jr.

Dario Pasok Jr. Agency Contractor

Data Entry/ Web Researcher/Basic WordPress/Web 2.0

Philippines - Tests: 6 - Portfolio: 2

To work in a certain organization and to secure a position in which my skills can be applied to where my knowledge and potential can be maximized thus will help improve company's operation and enhanced my capacity to serve. Been a Team Leader, QA, and a Web Researcher for more than a year. Almost 10 years in computer shop business. Experienced in computer operations, Microsoft Office application, Encoding, Software Installation, System Upgrade and Computer Hardware and Maintenance.; Have the ability to work under pressure ,meet deadlines and Strive to provide quality service.

$3.00 /hr
2,444 hours

Naseem Haider

Naseem Haider Agency Contractor

UI/UX Expert, Webdesigner, PHP, Wordpress

Pakistan - Tests: 2 - Portfolio: 18

I am a UI/UX Designer and Developer who provides Innovative Synergy with a uniquely powerful combination of creativity and hands-on experience, generating ideas and images to support your business goals as well as executing marketing initiatives in a seamless presentation of your company’s vision. As a successful entrepreneur who has worked across Europe and the US, I offer a Global Vision for positioning your business. I understands the market and know how engage and captivate targeted audiences with aesthetic appeal and a strong message. Most importantly, I deliver Quality Results, ensuring that your campaign represents the new standard within your market. In short, I will be a partner who will go beyond expectations to ensure that your business achieves the best possible marketing return for its investment.

$50.00 /hr
2,160 hours

Oleg Huk

Oleg Huk

ASP.Net MVC, WPF, WinRT, Xamarin Developer

Ukraine - Tests: 3 - Portfolio: 6

I am a software developer. My main specialization is in MVC ASP.Net, WPF, Silverlight, Windows Phone, WinRT, WCF, WCF Ria Services, C#, MVVM, Expression Blend, MEF, Prism, Caliburn, Entity Framework, Linq, Sync Framework, Sql Server, Oracle. I have good experience in software design and automated testing.

$23.00 /hr
2,805 hours

Andrey K.

Andrey K. Agency Contractor

.NET Senior Developer: C#, ASP.NET, MVC, WebForms, WCF, WPF, Xamarin

Russia

.NET Framework, C#, ASP.NET MVC, ASP.NET WebAPI2, ASP.NET WebForms, Windows Communication Foundation (WCF), WinForms, Windows Presentation Foundation (WPF), WinRT, WinJS, Windows Phone, Xamarin, Entities Framework, ADO.NET, MS SQL Server, Kendo/Telerik, DevExpress Hirerussians LLC.

$30.00 /hr
5,167 hours

Catherine G.

Catherine G.

Rockstart Quality Assurance Engineer, Tester

New Zealand - Tests: 9 - Portfolio: 2

I'm a network test Engineer with 5+ experience in IT industry. I started out as an IT support for a multinational company for 3 years before I took CCNA certification and decided to move into Computer Networking field. I am now a part of a company that makes router and Switches a system Test Engineer and have experience with agile testing methodologies.

$18.00 /hr
1,829 hours