Top Upwork Freelancers

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  1. Igor Garkushin

    Igor Garkushin

    Software Developer

    Russia - Last active: 01/31/2014 - Tests: 6

    OBJECTIVE: Find a job in the software development industry as a project manager, senior developer or programmer for remotely work. Able to work under stress, with tight time schedules and flexible specs. Able to work with business documents (contracts, budgets, plans, etc) and participate in the business development of the software development company. SUMMARY: 10 years of experience as CIO in the software development company. 18 years of experience as developer and 10 years as team leader and project manager. Presentation and negotiation skills.

    $22.22 /hr
    68 hours
    4.77
  2. Manoj Sonawane

    Manoj Sonawane

    Expert Linux, Unix sysadmin,devops

    India - Last active: 01/02/2014 - Tests: 1

    Hello, I am an experienced programmer & system Administrator with expertise in high performance system infrastructure, customized deployment solutions, configuration management, monitoring, python , Django development, REST based backend systems and related infrastructure support. I am in process of becoming Official Amazon Provider Network Member - Consulting Partner [https://aws.amazon.com/partners/overview/consulting-partner/]. Highlights: 1. Created an infrastructure with over 4000 servers (physical as well as cloud servers aws, rackspace and go grid) distributed in 4 regions , implemented monitoring, ha, replication, configuration management. Recruited a team of 3 sys admin's , trained them and supported platform 24/7 with 3 engineers. 2. Have worked with several technologies and scaled it for high volume with massive cost savings. 3. Created a unified platform to interact with multiple public clouds. ( aws, go grid , rackspace with custom python based system) 4. Designed a geo-distributed, full tolerant with a SLA of 99.99999 deployment and deployed it using Amazon Cloud, Rackspace Cloud,gofrid cloud and on physical servers 5. Designed a scalable storage system using open source and commodity hardware. I have managed large (4000+) servers for my employers and clients, which include GE, Wipro, Lehman Brothers & Glam Media. I have managed IT security for GE and banking sectors (built a DC and developer shop for Lehman brothers in china). I now offer remote system management consultancy and training services. I have attached my linked in profile and references if you need them. I have designed, developed and maintained large scaling, load-balanced and redundant infrastructure for many clients. Most of the infrastructure I have designed are, • fully automated (saltstack/puppet and deployment via various code deployment tools integrated with git or subversion) • auto-scale (on demand scaling) • auto-heal and auto curate • fully load-balanced • in required cases geo-distributed • Monitored with custom performance plugins, logstash, nagios, check_mk, zenoss This infrastructure architecture and deployments were in different environments • Dedicated servers at various isps • Virtualized Environment (Xen, KVM, VMware and others) • Public cloud: Amazon, Rackspace, GoGrid, and others • Private Cloud:= openstack • Different Business Verticals, • Ecommerce • Social Application (www.ning.com ) • Big Data Analysis and Analytics • Media (audio and video) • Online Advertising • Banking, • BPO / KPO Web Servers (Apache, lighttpd, Nginx, Cherokee) Load Balancers (HAProxy, Nginx, Pound, LVS, balance, Varnish, Zeus Load Balancer) Ruby on Rails (Phusion Passenger, Unicorn) Python (mod_python, uWSGI, gunicorn) Java (Tomcat, Glassfish, Jetty, Jboss) Database/DataStores (Mysql + variants, Postgresql, Oracle, Mongodb, Memcached, Redis, Riak, Membase/CouchDB, nd others) Data Analysis (Hadoop, Bigdata) Distributed File System (Glusterfs, Coda, Ceph, pVFS, Lustre, ZFS, OneFS, XtreemFS) Search (Solr, Lucene, Nutch, ElasticSearch, Lily, Katta) Caching (varnish, memcache, flashcache) Monitoring (Nagios, Munin, Icinga, Ganglia, cacti, ntop, op5, Zabbix, pandoraFMS, OpsView and others) DNS (bind, tinydns,) Mail (postfix/sendmail/qmail/exim, Dovecot/Courier) Security (Snort, Splunk, Samhain, OSSEC, OSSIM, Suricata) Centralized logging (rsyslog+loganalyzer, splunk, zlogfabric, octopussy, Samhain, Graylog2, Kibana, Log.io, OpenTSDB, Flume, Scribe CMS (wordpress, joomla, mambo, typo3, etc and other custom developed CMS) and many other applications and services Most of these infrastructure architecture are for high volume traffic web application or for massive computing requirements. I can help you in following way. • python, django, golang web app development, REST back-end • code deployment, automation • Efficient monitoring system and notification configuration • OS updated and performance tuning of kernel to support database & applications. • Backup solution to take backup and transfer to offsite. • A configuration management ( saltstack / puppet/ cfengine) and load balancing solution. • • Source control using git, svn • On call support.

    $33.33 /hr
    21 hours
    5.00
  3. Hoc N

    Hoc N Agency Contractor

    Senior Php, Yii, Lavarel, Jquery, PSD to HTML

    Vietnam - Last active: 1 day ago - Tests: 3 - Portfolio: 5

    I am splashed out of others with 5+ years of programming experience developer. I have experiences in HTML, DHTML, PHP, MYSQL, NOSQL. I also have experiences with some framework PHP as Yii Framework, Codeigniter, Lavarel, CakePhp and in the following areas: Ajax, Paypal, Wordpress, Joomla. Over the last 5 years, I have developed a wide range of websites from small to large system. I have experiences with Real-Time system and payment system, which have a large of users and very much connections to database. I have done all of them by my skills. Skill sets: ✔ Php, Yii framework, Lavarel framework, CMS (Wordpress, Magento), ✔ HTML, DHTML, PHP, MYSQL, NOSQL. ✔ Google Map Service, Foursquare, Geolocation, GPS, Open Street Maps ✔ Web Service, Ajax, XML, JSON, RSS, REST ✔ Video/Audio Streaming, Decoding/Encoding ✔ Video/Image Processing, Image Filtering ✔ MySQL, SQLite, HTML5 and their Frameworks ✔ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ✔ Twilio, Cloud Communication, Quickblox ✔ Google Drive, Dropbox, SkyDrive, OneDrive, iCloud ✔ RedMine,Github, BitBucket, SVN

    Associated with: DANA

    $7.78 /hr
    419 hours
    4.56
  4. Maris V.

    Maris V.

    Professional in everything, expert in Borland

    Latvia - Last active: 21 hours ago - Tests: 6

    Preferred tasks - with Borland products.Experience and ability in almost everything, from driver writing to Web design and Business Process Management tools, Windows and Linux.

    $33.33 /hr
    8,439 hours
    4.48
  5. Justin C

    Justin C

    Big data engineer and webapp prototyper

    United States - Last active: 16 days ago - Tests: 2 - Portfolio: 1

    I am a software engineer who focuses on big data, machine learning, and analytics. I have a masters degree in computer engineering and neural engineering. My thesis focused on using machine learning techniques to classify brain signals in real time. Throughout my academic career I completed my internships at one of the "big four" and I just left a software engineering position at another one of the "big four". My other work has been in the startup world where I became familiar with agile development and getting things done! I am proficient in Python, Ruby, Rails, Hadoop, C++, Java, MATLAB, PHP, MySQL, PostgreSQL, MongoDB, Redis, and more. I have built many projects from the ground up and am familiar with cloud platforms such as Heroku and AWS. By this I mean, I can get your app up and running in no time. Here is a running list of some of my current work: tutorhunt.pw textbookx.me chronosum.com lazyprogrammer.me github.com/lazyprogrammer?tab=repositories

    $111.11 /hr
    0 hours
    5.00
  6. Dinesh Karki

    Dinesh Karki Agency Contractor

    3hammers - A Fast-paced Creative Web and Software Agency

    Nepal - Last active: 2 days ago - Tests: 5 - Portfolio: 9

    Founded in 2012 - 3hammers, from day one, has been dedicated to bringing together the most creative minds in the industry to deliver results-driven work for our clients. Thus, we don't hesitate to call ourselves a fast-paced growing company. We are truly blessed to have the most talented individuals in the creative space. From website designers/developers to social media specialists, our team is comprised of Web design, Mobile App design, development and marketing wizards who are equipped to implement the most cutting-edge solutions for business growth. Our main focus is to understand our valued clients' demand and their idea, which we believe to turn into quality and productive result. We believe, your trust on us will never make you regret on your decision. 3hammers team

    Associated with: 3hammers

    $16.67 /hr
    0 hours
    5.00
  7. Whilly B.

    Whilly B. Agency Contractor

    WB Media *World Class Web Design

    United States - Last active: 18 days ago - Tests: 1 - Portfolio: 3

    Hi, I'm a freelancer designer and running a freelancing company from a few years. We believe in quality not quantity so that's why we offer the very best. My personal Project Management skills are also proven to take you to where you want to be. I operate a full-service digital shop built on a foundation of e-commerce, media, search and analytics, that's grown into all that and tech, creative, and social media. More importantly, who are you? We are listeners first and foremost. ;-) www.GoWB.net

    Associated with: WB MEDIA

    $33.33 /hr
    0 hours
    5.00
  8. Fahmid U.

    Fahmid U. Agency Contractor

    Game Developer | Mobile App Developer | Graphic Designer

    Bangladesh - Last active: 16 days ago - Tests: 2 - Portfolio: 45

    My portfolio - http://www.fahmid.com From age 12 I've been inspired by a very amusing online game. That game (by Colin Northway - Fantastic Contraption) has motivated me to enter the vast field of programming. I've started with Graphic Designing. Designed logos, user interfaces, graphics, websites, etc for 4 years. To expand my skills I moved in to HTML/CSS/JavaScript. Then I took small routes to 3D Modeling, Video editing, mobile app development, and finally game development. Now the skill I am targeting as my career is Mobile app development, Game Development and Graphic Designing.

    Associated with: Candyballoon - Graphic design, Animation Agency

    $30.00 /hr
    6 hours
    4.91
  9. Praveen S.

    Praveen S. Agency Contractor

    Senior Web Developer, PHP ,Jquery,Mysql, Wordpress, joomla and Magento

    India - Last active: 1 month ago - Tests: 5 - Portfolio: 1

    I have one simple objective to provide the best solution to all my customers in any means of web development. I offer the solutions which are ideal for businesses and individuals who want to take advantage of the great features and flexibility, plus need to update and manage the web site themselves. Web Projects developed by me are: - Simple - Clean - Usable - Informative - Attractive I love challenges and always ready to adapt new technologies which helps me to provide the best to my all clients. Please ensure requirement should be clear before contacting. I am very managed person and need to handle my all project with extra care. Thus need exact directions what need to achieve. Willing to work on big and complex product development.

    Associated with: Webespire Consulting

    $8.00 /hr
    0 hours
    4.55
  10. Mukhtiar A.

    Mukhtiar A. Agency Contractor

    JEE/Rails Developer

    Pakistan - Last active: 1 month ago - Tests: 3 - Portfolio: 5

    Over 10 years of Software Development experience in Java Excellent JEE (EJB, Servlets,Struts),Spring, development skills. Specialties Java, JSP/Servlet, GWT, GWT-EXT, Struts, Spring, Hibernate,EJB, Spring, JPA, Velocity, iBatis, Maven Ant, JUnit, Log4j, Richfaces, Resteasy, Groovy, Grails, Ruby, Rails. Oracle 10g, SQL Server 2000, MySql 5.0, PostgreSql 9.0, Mongodb HTML, DHTML, javascript, jQuery Tomcat, JBoss 4,5,6,7, ActivMQ

    Associated with: Envabe

    $15.00 /hr
    0 hours
    4.05