Network & System Administrators

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Timur Birsh

Timur Birsh

Unix Systems Expert and Oracle DBA

Kazakhstan - Tests: 7

Hello, Over the last 15 years, I am working with the following Unix systems: BSD based systems, Solaris and Linux distributions including Debian, RedHat Enterprise Linux, CentOS, Oracle Linux and Ubuntu. Over the past years I have developed a wide range of solutions: VPN, proxy, mail, web, file, Samba, DNS, DHCP, SSO, database, monitoring, backup, virtualization and high availability servers. I am Oracle DBA with the 5 years of experience. I work for financial institution. On my control a 21 databases. Mission critical and big databases runs on the IBM hardware and AIX operating system. Other databases runs under control of Solaris (SPARC) and Linux operating systems. For data protection we use Data Guard. One of the best products of the Oracle is Enterprise Manager Cloud Control. We use it for the databases and hosts monitoring. Its management repository contains a lot of information. It is very useful in building of custom applications (reports, etc). I have work experience with the following Oracle RDBMS versions: 8i/9i/10g/11g. I am big fan of a tasks automation. For small jobs I use shell scripts. For jobs that have complex logic I use Python or Perl. For complex text processing I use awk, sed and shell scripts as a glue. I have 5+ experience of C language programming for Unix. Hardware administration of the following vendors: Oracle (Sun), HP, Dell. I am contributor of the following free software projects: Debian (, Transmission Bittorrent Client, inadyn Dyndns client. I maintain the following opensource programs: * sXid - * cd-discid - I use Git for source code management. I would be happy to help you. Please do not hesitate to contact me.

$33.33 /hr
18 hours

Ambiorix Rodriguez Placencio

Ambiorix Rodriguez Placencio


Dominican Republic - Tests: 1 - Portfolio: 5

Extensive, practical and relevant industry experience in the following area : -> Asterisk and FreePBX customizations. -> Custom Asterisk Development (PHPAGI,Bash Scripting). -> Hosted PBX Solutions (Amazon AWS, DIgitalOcean, SolarVPS). -> Complex IVR Solutions (Databases Integrations, Web App Integration). -> Call Center Solutions (Vicidial,Goautodial). -> Customized Broadcasting solutions. -> Technical Consultancy. -> Asterisk & MYSQL-PHP Integration. -> Asterisk Security (Fail2ban, IPTABLES). -> PHP&MYSQL Developer.

$35.00 /hr
16 hours

Dmytro M.

Dmytro M. Agency Contractor

Senior System/Network Administrator

Ukraine - Portfolio: 3

Best skills: Platforms: FreeBSD, Linux (RHEL / CentOS, Ubuntu Server / Debian, Gentoo) Network solutions: HAProxy, keepalived, GlusterFS Databases: MySQL, PostgreSQL, MySQL Cluster Virtualization: Xen, KVM Cloud Technologies: Amazon Web Services (AWS), OpenStack Security tools: PF, IPFW, iptables, VPN, OpenSSL, RADIUS, and more Additional skills: Languages: C/C++, Python, Perl, PHP, JavaScript

$30.00 /hr
117 hours

Tusk Software

Tusk Software Agency Contractor

Agile, American based web-centric .NET development

United States - Portfolio: 3

Finding a software development partner is a headache. At Tusk, we want to make that process easy for you. Our passion is bringing your ideas to life and delivering an excellent customer experience along with excellent quality. Our expertise lies in enterprise ASP.NET development, and our processes allow us to deliver the most business value to you in the shortest amount of time. We can take web applications further than you imagined possible, unifying desktop, tablet, and mobile under a single platform. More often than not, we find that we can replace your need for a native mobile or desktop application with a web based solution, which not only increases accessibility to your software, but ultimately saves you time and money. We'd love to talk with you and see how we can make your concept a reality.

$110.00 /hr
61 hours

Anatoly Yuzefovich

Anatoly Yuzefovich Agency Contractor


Russia - Tests: 1

I'm skilled Nix-administrator and perl developer with 10-year old experience. Administration: Linux, FreeBSD. Services ftp(proftpd,vsftpd,pure-ftpd), http(apache,nginx,lighttpd),dns,email,mysql and other services. Networking: Cisco systems devices (routing & switching). Network architecture. NAS/SAN: IBM, HP, NetAPP and work with Blade Systems (IBM, HP) VmWare vSphere virtualization. Perl programming: Web-programming - DBIx, dancer, plack, templates, modern perl, mojolicious. JavaScript - extjs, jquery, node.js, angular.js

$33.33 /hr
399 hours

William Grzybowski

William Grzybowski

(Web)Development and Unix-like Consultant

Brazil - Tests: 7 - Portfolio: 2

Before I even go to university i started working with Web-development. My first experience was about 6 years ago with pure HTML using frames in Dreamweaver 3. Since then I have worked hard to improve my skills in every way possible, not just as a web-developer but as a general programmer, and now I work essentially with Open Source software like Python(+Django), PHP, Linux/FreeBSD, PostgreSQL, etc.My degree in computer science helped me to understand the basics of a computer from the bits in the processor instructions to multimedia, and thus can be used everywhere to improve the final result of a project.

$33.33 /hr
3,500 hours

Dmitrijj Sergeevich Kashirin

Dmitrijj Sergeevich Kashirin

Java Developer with Linux experience

Russia - Tests: 4

I'm Java Developer with strong Linux experience. My strong skills is Data analysis, Linux, Java, SQL. Also I have skills in Continuous Integration and build and delivery operations. My development experience is 5 years on server-side, client and desktop applications. I believe my strong points are my accuracy and punctuality. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Since 2012, I'm Java Developer in T-Systems company and developing client and server-side applications on Ubuntu and RedHat systems. Additionally I'm developing parsers, crawlers and scrappers for data-mining of different web-sites and documents. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a Masters degree in Applied Mathematics and Physics from Saint-Petersburg State University, in the Russia. Listed below are my experience and skills. — Java Core: Java Core, Multithreading, Collections API; — Frameworks: Spring, JUnit, Mockito, Jsoup, Velocity, Play Framework; — Servers: Apache HTTP, Tomcat, JBoss; — Continuous Integration: Jenkins, Maven, Gradle, Ant; — Scala (Play framework) — Core web: XML, JSON, HTML/CSS, JavaScript; — IDE: Intellij Idea, Netbeans; — OS: RedHat Enterprise Linux, Ubuntu Linux, HP-UX, Windows; — VCS: Git, Mercurial, SVN; — Bug/Issue trackers: Jira, Bugzilla; — SQL;

$20.00 /hr
169 hours

Ahmed K.

Ahmed K.

AhmedKamal, Amazon AWS, RHCE, Cloud and DevOps consultant

Egypt - Tests: 2

I have been involved with Linux professionally for the last 12 years. I have worked on setting up Linux servers, including almost all network services DNS, DHCP, Web servers, MySQL Databases, iptables Firewalls, proxies ... You name it, I've done it. I've supported various multinational petroleum companies and communication giants. I am pretty sharp debugging and troubleshooting network issues. I've also worked for the past 5 years almost exclusively on cloud computing. Be it multinationals like Microsoft, Canonical, Sun Microsystems, Oracle and others, to governmental agencies and SMBs I regularly support various smaller businesses remotely, with yearly contracts. So I'm pretty used to working remotely and getting things done that way. My scripting skills enable me to automate almost all of the needed daily tasks. I absolutely love doing Cloud/Linux/Unix design, administration and support work. I will surely enjoy supporting you and your environment. My friends tell me, "the servers love you" :) I'm sure yours will too!

$33.00 /hr
59 hours

Jose Arteaga

Jose Arteaga

Cisco Telecommunications Engineer - Powering productivity through Comm

Venezuela - Tests: 6

Who I am... Network Engineer with 5+ years of experience working with a variety of technologies from different vendor like Cisco, VMware, Microsoft, Watchguard, Barracuda, etc. I had designed and implemented networks from scratch starting on the infrastructure (Routing and Switching), Security and finally the Applications (Unified Communications and Collaboration). My Mission... I specialized on designing and implementing network solutions for small, medium and large businesses in many different vertical markets like the oil and gas industry, banking, food and beverages industry and others. I had achieved customer satisfaction 100% of the time and exceeded their expectations while staying on-budget, meeting deadlines and finding new business opportunities inside the company and the customers. Always looking for the biggest challenges that help me excel myself not only in the networking field, but also in the business management side of the company making myself an integral and interdisciplinary engineer capable of achieving the impossible.

$50.00 /hr
257 hours

Sergei L.

Sergei L.

Database engineer & system architect

Germany - Tests: 6

My experience: - Creation architecture of - working now in as system architect Strong knowledge: - CentOS(RedHat), Debian, openSuSE - Nginx, Apache - Bash, PHP - MySQL - Amazon AWS( S3, EC2, SNS, CF, RDS ) Work with: - Memcache / Redis - MongoDB I've had various expirience with high-load servers and architectures and I'm looking for non-standard, complex work, that should be interesting for me. If I'll really like your task , I could give you even a discount :-) Profile on the stackoverflow:

Groups: Coding Champs, Microsoft Certified Professionals

$30.00 /hr
134 hours