I am an expert programmer with a Master's Degree in Computer Science. I've worked in Fortune 500 companies (including a Wall Street firm and a major hospital). I took time off to be a stay-at-home dad. My children are starting school and I'm looking for projects to do from home.
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Ruby is an open-source dynamic and general-purpose programming language that is similar to languages like Perl, Lisp, Python and Smalltalk. On oDesk, the world’s largest online workplace, companies hire Ruby freelancers for various Ruby development projects, from web applications and threaded database servers to chart libraries, desktop GUI applications and image recognition engines.
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I've 6 years of experience in Ruby on Rails and more than double in computer science. Here's what I can do for you: - Website, API, back office, script, background job - System administration, VPS, AWS, dedicated server - Security, authentication, oauth - Push notifications, email, sms - Integration of plugins, social networks and online services - Data modelling, SQL, NoSQL - JSON, XML - Testing, debugging and code optimization - Case studies, documentations, advices, specifications - and much more Professional and customer centric, I'd be happy to answer your inquiries. More infos about me & my works: - https://github.com/sweetdub - https://sweetdub.com/ - https://angel.co/_sweetdub
I'm am currently working as a freelancer for a major mobile operator in my country on the field of DWH and reporting. I have solid knowledge of PL/SQL which i use on a daily basis. I also use SAP BO tools for building reports and SAP DataServices ETL tool. Sometimes i write technical documentation and provide IT technical support.
I have experience using open-source software, such as Blender, Gimp, Inkscape, and Joomla. I also know HTML and CSS 2. I am most experienced at 3D modeling. My goal is to do custom 3D modeling as well as custom Joomla web design. I have completed numerous 3D graphic projects over the past four years; I have sold stock 3D models and stock 3D images. I also made a four minute animated short film.
I am in full time higher education (University) studying for a Masters (Hons.) in Physics with Particle Physics and Cosmology. Such a subject requires me to have a wide range of skills, good time management and the ability to logically approach tasks given to me. Over the past several years, I have worked on the occasional project developing my skills in basic programming, and web design; which equates to approximately two years of professional experience. Two years prior to University, I taught myself the LaTeX typesetting language; know it was the industry standard for typesetting Physics, Engineering and Mathematical documents. Since then, my skills in LaTeX have grown to include AMS-LaTeX equations and BibTeX referencing. More recently I have extended my skills further to included being able to write basic custom packages and classes. I have used Windows, Linux and Mac operating systems and comfortable on all three. I look forward to gaining more professional experience, improving myself and my skills, and your company.
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.
I received my undergraduate degree in Electrical Engineering from the Massachusetts Institute of Technology and my JD from Boston University School of Law. I practiced as an attorney from 2001-2012, with a focus on patent litigation, patent prosecution, and intellectual property strategic counseling. Areas of expertise include the following: Patents ====== - patent drafting and prosecution - patent searching - patent analysis for purposes of freedom-to-operate, infringement, IP due diligence, patentability, and validity - claims charting - claims construction Research and Writing ================ - legal research - legal writing - technical writing - report writing - resumes and cover letters
One of TOP10 freelance system administrators in Russia: https://www.free-lance.ru/users/psaux/opinions/ Highly skilled system administration expert with more than 10 years of professional background. Experience in hosting companies, software development companies, government sector. Good in firewalls, IDSes, white hat and black hat security testing, DDOS protection. Providing 24x7 uptime service. My target is to achieve BEST PERFORMANCE of servers with a decent SECURITY level. My motto is: "best system administrator work is when you don't need him in the future".
Over the last 2 years, I have developed a wide range of websites using Ruby On Rails framework, and MySQL including sites for startup companies and small businesses. I also have experience in Grails and joomla website(create : module, component and template) Certified SCRUM Master (Agile method)