Network & System Administrators

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Diego Gutierrez

Diego Gutierrez

Systems admin, DBA, developer, application architect

Argentina - Tests: 19 - Portfolio: 2

During my 20+ years of experience, I've gone through several different IT roles: developer, analyst, database designer, database admin, systems administrator, network designer, team leader, architect, CTO. This background allows me to understand all aspects involved in application development, being able to design a complex multi platform app from the ground up as well as help troubleshooting an existing app's problems or weird system behaviour. P.S.: NOT a translator.

$33.33 /hr
4,780 hours

Marek Malevic

Marek Malevic

Software Architect (Java, SQL)

Czech Republic - Tests: 11 - Portfolio: 1

IT specialist experienced in software analysis and implementation of performance improvements, databases development, implementation of information & reporting systems. Developer of server, desktop and web applications, experienced in both Linux and Windows server environments. Worked for 7 years as Senior Technical Consultant for an international company (Infor) and participated in many international projects. Since 2012 a Bottleneck Team Lead in an international team responsible for software analysis and implementation of performance improvements on various platforms (mostly C/C++, Java & DBs). Since 2013 a member of a team that develops Amazon Elastic Compute Cloud (EC2) management web service used by a company with 5000+ employers, Amazon WebServices (Java API) expert.

$40.00 /hr
7,715 hours

Oleksandr N.

Oleksandr N. Agency Contractor

Embedded C/C++ Software Developer | Linux Kernel Developer

Ukraine - Tests: 5 - Portfolio: 2

I'm the founder and CEO of Ukraine based software development company with main focus on embedded systems, embedded linux and desktop linux applications. We offer software development and software outsourcing services for companies in telecom, storage, IoT, vending industry and other domains. Always looking for challenging projects in various fields of embedded technologies.

$27.78 /hr
4,394 hours

Victor Cernobai

Victor Cernobai Agency Contractor

Senior C++ Financial/Trading Software Developer

Romania - Tests: 2 - Portfolio: 2

Hello and welcome to my oDesk profile, My name is Victor Cernobai and I am a professional C++ developer exclusively specialized in developing trading (and related) applications. I am in the financial industry since 2009. During this time I have participated in the development of a wide range of modules involving concepts such as high frequency trading, client/server architecture, distributed modules, OOP design patterns, low-latency optimizations, multi-threading, GPU acceleration, IPC, Socket Programming etc. My main IT expertise is C++, but I also do have working experience with Python and C#. Some more details about my expertise: a) API connectivity / platforms: Interactive Brokers API, Currenex API, FIX protocol with QuickFIX, IQFeed API, Trading Techologies, CQG, PFGBest, FXCMpro, Hotspot/ITCH, Bloomberg Open API, MultiCharts; b) Building financial charts: OHLC, bars, Point and Figure; c) Implementing technical indicators like: Moving Average simple/exponential, MACD, RSI, bollinger bands etc. d) Data storage solutions: MySQL, SQLite, MSSQL, binary files; e) Back-testing and Optimization solutions; f) Trading algorithms: arbitrage algos, mean reversal, trend-following, trendline based etc.; As a freelancer I am only struggling to: a) Apply my programming and trading knowledge to bring higher value to trading applications; b) Be always close to the client; c) Take projects only when 100% confident they can be done on time and on budget; d) Provide the best answers to clients questions; e) Work only with serious clients. Thank you for your time and do not hesitate to ask me for portfolio samples! Best regards, CVI

$55.56 /hr
1,091 hours

Pavel Sitnikov

Pavel Sitnikov

Java/Android Developer

Russia - Tests: 5 - Portfolio: 5

Experienced Java developer with Masters degree in Computer Science. Have 8 years of experience in developing web applications including complex applications such as project management and time planing system, workflow management system, social networking site and service for mobile payments. Have expert level skills in Spring, Hibernate, Google Web Toolkit and Tapestry 5 frameworks. Familiar and have strong skills with Tomcat, Jetty, Jboss AS servers. Have 5 years experience of developing Android applications including a number of applications which use Android Bluetooth API stack. Also I have strong skills in administration of servers running Linux-like systems.

Groups: Coding Champs

$30.00 /hr
3,426 hours

Serhiy Kanyuka

Serhiy Kanyuka Agency Contractor

I like to mix technologies to get the best solution for client.

Ukraine - Tests: 7 - Portfolio: 5

I am developing for more than 12 years and participated in development of big projects (tech lead, project manager,developer) and developed small projects on my own. There were native client-applications for Windows (C++, C#) and Linux as well as servers and web applications (Linux, Windows). For the last 4 years I was also working with architecture design and development in few areas like: Vending Machines Web Services and Web Application in Web Clouds (AWS) Internet Payments Distributed Databases Microcontrolers internet of things set-up and monitoring of Linux/Freebsd servers and developing the web-applications. I have quite a large experience in developing and debugging so I can look at project deployment as developer and as administrator that gives better and faster result. The learning of new technology and it’s intergation is my favourite activity that’s why I will understand you easily and integrate in your project team. My skills: OS: Busybox, Linux, Debian, RedHat - expert, FreeBSD and Windows Server - proficient Web servers: Apache, Nginx, Tomcat, haproxy Database servers: Mysql, Postgresql CMS:Yii, CodeIgniter Advertising: OpenX, AdSense Scripting: bash, perl, php, javascript Languages:C, C++ SDK:Qt Virtualization: Vmware esxi/server Other: standard network services (DNS, DHCP, Samba, SVN, http proxy, backups, monitoring etc), firewalls and routers I have work with hosting: AWS,, rackspace,,

$24.44 /hr
7,812 hours

Muhammad Kamran

Sharepoint/C#/VB.NET/ASP.NET MVC/Magento Developer

Australia - Tests: 2 - Portfolio: 10

• Senior Software Engineer with 9+ years of experience in design, development and delivery of innovative and scalable Microsoft centric web solutions. • Extensive experience of developing web based enterprise applications using ASP.NET Webforms, ASP.NET MVC, AJAX, Javascript, JQuery, HTML, CSS, XML and SQL Server. • Over 3+ years of Experience in Installing, Configuring, Administrating, Maintaining and Troubleshooting Microsoft Office SharePoint Server (MOSS) 2007. • Extensive experience of developing multithreaded middleware components. • Extensive experience in Developing and building WebParts using SharePoint object model. Highly skilled with object oriented design patterns and architectures. • Strong knowledge of Microsoft technologies including MOSS 2007, .NET, AJAX, ASP.NET Webforms, ASP.NET MVC, WCF, Entity Framework and SQLSever. • With over 5 years of working with U.S based clients, successfully delivered 10+ ASP.NET web applications including a product platform for an on-demand software company. • Worked through all the phases of Software Development Life Cycle (SDLC) including Requirements Gathering, Analysis, Design, Development, Testing, Production and Post-production Support. • More than 3 years of experience in developing custom extensions for Magento Commerece.

Groups: Microsoft Certified Professionals

$33.33 /hr
1,880 hours