Linux System Administration Jobs

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Hourly - Expert ($$$) - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We need a very experienced system administrator to setup the servers we use for our time critical web application (e-commerce). After the initial setup period we need availability of the same person to undertake the maintenance of the above servers. Our maintenance needs are low if the setup has been done correctly, however we need fast response in the rare case of emergencies. We need a US based administrator. Responsiveness is the quality we value more.
Skills: Linux System Administration Nginx Python
Hourly - Expert ($$$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
We are in need of one high level security expert to provide server vulnerability testing and hardening and someone to assist with possible site migration efforts. You must be trustworthy, an excellent communicator and have several years of network security experience. References will be required as well as an active LinkedIn account.
Skills: Linux System Administration DNS Network Administration Network Engineering
Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
We have an existing dedicated server running LAMP (Ubuntu 14.04.3 LTS & Webmin/Virtualmin) which serves CMS/PHP websites, client portals, email and mysql etc. We have 1 spare dedicated serve which is the same hardware and has Ubuntu 16.04.1 installed but is currently blank and unused. We're looking for a solution so that when Server 1 (the dedicated server already in use) needs maintenance, updates or if it fails then the second spare server detects this and takes over and serves the websites and other services. When Server 1 is then back online, Server 2 would then detect its presence again and sync any updates, file changes/emails or websites changes back to Server 1 again and then switch back so that Server 1 is serving the content again. We only have these two server available for this and no other hardware. The other problem is that we don't think we can use block level mirroring/DRDB or similar due to not having the right partitions setup already on the server in use. We're open to ideas and solutions on this but just need a simple and cheap solution that is reliable and won't corrupt or lose any data. We've already found a couple of potential guides to Heartbeat, corosync, pacemaker and keepalived but are unsure how to best use them and set them up without causing too much downtime on the active Server 1. This guide also mentions using rsync and looks reasonable and fairly simple but misses a couple of the requirements needed and also we're unsure if it is the best solution being a 6 year old post: http://mfarrukhsiddique.blogspot.co.uk/2010/01/highly-available-webservice-by-using.html We'd also need details of what is implemented and how to make sure it can be recreated in future if we add further servers or if we have a problem and need to reconfigure things. Thanks for any options on this.
Skills: Linux System Administration Computer Networking LAMP Administration Network Administration
Hourly - Intermediate ($$) - Est. Time: More than 6 months, 30+ hrs/week - Posted
We are looking for developers that can add to our team designing and implementing new features in our eCommerce web store platform. This position is with a team responsible for the ongoing development and maintenance of multiple systems which connect with MySQL back-end systems. Servers run Apache, Linux, PHP, HTML, and MySQL. Gather and analyze complex requirements and provide the proper solution Use CSS for consistent design elements with the pages served Create and schedule cron jobs MySQL: Design/implement sub-queries stored within the database to Use MySQL to retrieve/update/insert data via advanced queries with multiple sub-queries with EXIST and NOT EXIST conditions Web Development: Use PHP server-side programming language to: Customize/create/implement dynamic web pages to aid in management of projects, schedules, training and reporting with multiple levels of privileges Design/develop dynamic web pages that create output into other systems as needed Use AJAX to dynamically retrieve data for a portion of a page instead of reloading the whole page Qualifications: Must possess a strong knowledge of PHP and MySQL database navigation and maintenance and minimum 3 year experience developing web applications in similar environment LAMP developer with MSSQL and MySQL experience Minimum 3 year experience as a web application developer in PHP environment with SQL database back end systems Web application development including PHP, AJAX, CSS, HTML SQL database administration and maintenance Linux (Ubuntu) Good interpersonal and communication skills (oral and written) Minimum 2yr degree required but Bachelor’s is preferred in Database Administration or Computer Information Systems
Skills: Linux System Administration
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Looking for a experienced Architect/Senior developer who would be able to support us in Implementing Pentho CE in our product Required Skills: • In depth and proven Pentaho implementation expertise • Experience with Integration of Pentaho with other application • Experience of designing and developing interactive reports and dashboards
Skills: Linux System Administration Java EE Node.js
Fixed-Price - Expert ($$$) - Est. Budget: $500 - Posted
We are looking to develop one CDR Analysis Application for Windows. We will show you some sample application for getting idea. We are looking for only experienced people should apply on our project. After getting selected for the project, it should be completed within 7 days. There will one admin panel from where all the user accounts will be controlled. All the users could be able to download our application from our website but for activation of the subscription, we will provide them a license. That license mechanism should be given in our admin panel of the application. There should be search button also where we could put and search anyone's mobile number or email i.d then it should show us that mobile number and email i.ds availability on internet either it is on facebook, twitter, linkedin, whatsapp or any other place on internet. There should be an option to give customer support to users. From where we at admin could see their problems through remote desktop like team viewer.
Skills: Linux System Administration .NET Framework C# C++
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
We are an Amazon FBA seller that is looking at upgrading our reporting infrastructure by interfacing directly with the Amazon MWS API. We would like to automate the data gathering and analysis using AWS infrastructure and processing services. We are looking for someone who can design and build an application(s) that gathers specific data via the MWS API and display the data in a convenient and useful form. The application(s) need to be able to handle a volume of simultaneous requests. Being fault-tolerant the application design at the same time should be cost effective in terms of AWS usage. Technologically we are looking for Java implementation using Spring or Spring Cloud since we will be able to support applications created this way. Beanstalk or Lambda with API Gateway would be preferred. The right person must have previous experience working with Amazon MWS API. Please advise experience and ability to design, build and implement. Requirements 1) Should be able to build cost effective AWS infrastructure. CloudFormation script for proposed infrastructure is highly desired. 2) Design and implement process automation - application start, stop and possibly other control actions. 3) Design and build data processing engine using Amazon MWS API. 4) Design and build data presentation forms. 5) Provide design specifications for the application and other documentation.
Skills: Linux System Administration Agile software development Amazon MWS Apache Tomcat
Fixed-Price - Expert ($$$) - Est. Budget: $150 - Posted
Looking for someone to diagnose and fix the reason why we can no longer SSH into our server. We can do so via console in cpanel, and login via WHM however putty SSH no longer works. We also have something that keeps crashing our server on a daily basis and need to get to the bottom of what is happening. We believe it is coming from too many SQL queries that are being generated by a ticketing system we have.
Skills: Linux System Administration CPanel MySQL Administration WebHost Manager (WHM)
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
You are required to setup a monitoring solution using icinga. icinga should monitor the apache web server and the mysql database server and send logs to Amazon S3 .
Skills: Linux System Administration
Hourly - Entry Level ($) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
We're a startup that requires an ongoing website updates (the site is ready). Looking for a maven in wordpress and frontend technologies. We will provide mockups / texts and that needs to be applied to our site. Our site is built in Wordpress / Linux. The candidate needs to have good understanding in - Linux - Wordpress / plugins / themes - HTML - Javascript - CSS I am looking for someone who is very organized. Someone who is testing any updates before applying them over a test-site. Someone who is also has the ability to update our theme in php and Javascript.
Skills: Linux System Administration HTML5 PHP WordPress