Unix Jobs

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Hourly - Expert ($$$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
As our fax processing volume grows, the file server performance and scalability start to become an issue. We would like to have a UNIX expert with strong experience in Samba file server to review our current configuration, suggest an update/reconfiguration, and, after monitoring file service performance, if necessary, perform performance tuning for better scalability of our overall system performance.
Skills: Unix System Administration Samba
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
For our analytics tool we need a simple Kismet client. The client should be accessible through a REST API and listen on a specific port on Raspbian OS. If a request is sent to the client, it has to capture all surrounding WiFi network devices. Then the client fetches a list of MAC addresses we are looking for. It returns, which MAC addresses have been found via Kismet and if one or more of the MAC addresses from the list matches the predefined MAC address list. The client can be implemented using Python, C++, Java or Node.js. The timeline is short and the project can start immediately.
Skills: Unix shell Bash shell scripting Python Raspberry Pi
Fixed-Price - Intermediate ($$) - Est. Budget: $150 - Posted
Ok I have an ecommerce site, the front end is working fine but the back end (admin panel) or checkout pages (https) are erroring. I run centos 6, nginx, redis cache, php-fpm, maria db It was working fine until all orders stopped a few weeks ago. The only thing I can think of is that we recently added a new domain on there and changed the https dedicated IP address to use for the new domain, the guy who did it was positive that we nginx did not need a dedicated IP for https? I don't know if this is the cause but I need a very experienced sys admin who can easily find and sort the issue urgently please. You must have at least 10 prior feedbacks. thanks
Skills: Unix System Administration CentOS
Fixed-Price - Expert ($$$) - Est. Budget: $150 - Posted
I'd like to contact somebody who help me to implement a real time chat and help me with other system tasks. The idea is know each other to can work in multiple projects. I'm seeing there is a lot of chat and other private message implementations ready to use. Some are : https://github.com/tinode/chat (seems alpha version ) https://github.com/dmitryweiner/secure-chat-nodejs (seems live version ) But I accept more suggestions. I don't like you create an specific chat. No!! Don't reinvent the wheel. The develop I like es you help me to implement or optimize one of free software projects what already do this function. I'd like to suggest this site ( sorry is in Spanish - soon will be multi language ) but will tell you exactly my development idea. http://metodologiasagiles.com/articulo/a0004/revolucion_en_el_desarrollo_development_revolution Possible software to use it : - Node Js - Angular Js - React Js - MongoDb - RethinkDB - Redis - Sphinx - Elasticsearch The idea is chat works in an static page with an option to integrate with Drupal or Magento. Chat must to have : 1. Multiple role to use it 2. Fully secured (SSL) with captcha login to avoid bot 3. Fast load in whatever html page 4. Of course based in free software project (never more wheels). Also you could continue working with me in a lot of other projects. Let to see chat experts. Budget is negotiable. I search expert person better than an specific project. I want real solutions. Regards. Ricardo.
Skills: Unix AngularJS Apache Solr Apache Cassandra
Fixed-Price - Entry Level ($) - Est. Budget: $75 - Posted
Essentially it will be configuring DD WRT to disconnect/dissociate/not let them connect in the first place automatically any client whose signal drops/or is below an administrator-defined threshold (eg. RF signal strength and or SNR). Having a few clients stuck on the first access point they see and not letting go is causing me a big problem. This is a large WDS spoke and wheel setup. I have examples of ubiquity scripts similar to what I'm looking for. I know there is other equipment out there that can easily manage this but I need to keep the ubiquity/ddwrt hardware in place. I will need to upload this script to about 15 access points.
Skills: Unix System Administration Computer Networking Linux System Administration Network Monitoring
Fixed-Price - Intermediate ($$) - Est. Budget: $2,600 - Posted
Requirements: We are looking for independent and proactive C++ Developer. - 5+ years front-office IT system development experience in C++ /Linux - In-depth knowledge of C++ (on Linux platform) including STL and Boost (5+ Years of overall experience) - Strong experience in real-time programming (multi-threading, OS IPC/synchronization mechanisms, communications/sockets) - Strong communication and team leadership skills - Excellent problem-solving skills - Degree in Computer Science or equivalent Desirable: - Low-latency development experience and skills - Informatica UM product experience - TIBCO EMS/RT SmartSockets experience - Knowledge of ORACLE/SQL, Linux scripting languages (e.g. Perl) is desirable - Previous financial services experience - Experience and good understanding of FIX messaging Duties: - Design and hands-on development of enhancement to the system (C++/Linux/Shell/Perl/Python/Lua) - Creating Technical/Support Documentation - 3rd line production support and issue investigation follow-up - Participation in technical architecture discussions and decisions - UAT/QA System Support and issue investigation - Participation in the entire software development lifecycle including technical design, documentation, software development, unit testing & production implementation We offer: - Stable and long-term work among professionals on the basis of contract of employment, B2B contract, contract of mandate or contract of specific work - Real influence on progress of your career path - Work in a team for which your opinion matters - Support of Business Assistant dedicated to the Specialist throughout the entire period of cooperation - Help in relocation to Wroclaw - Integration events, sport events e.g. IT run, cycling tours, football, and basketball matches - Benefits matched to your needs
Skills: Unix shell C++ Perl
Hourly - Intermediate ($$) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We are a fast growing company building a data-intensive, high-transactional, low-latency online sports betting platform, hosted on AWS. The backend role involves seamless integration with a number of providers' API, web scraping, fast data updating and bets processing. The frontend role involves web app development with AngularJS, and hybrid mobile app development with ionic. Ideally you will be a full-stack developer with up-to-date backend / frontend / DevOps skills. However all backend and frontend devs are welcome. DevOps experience with AWS, Linux, Bamboo is a bonus. You will write code from scratch, as well as refactor existing code to increase cleanness and performance. Code quality is important. Backend: Core Java. Hibernate. Spring - core, mvc, security. 2+ years experience. Relational database, preferrably PostgreSQL. SQL. 2+ years experience. Experience with Maven, Git. Experience in developing web applications. Familiar with application servers e.g tomcat. Experience in integrating external APIs. Frontend: AngularJS, JavaScript, HTML5, CSS3. Hybrid mobile apps - ionic. Good sense on UI/UX design. Experience in web scraping. Experience with GWT (Google Web Toolkit). DevOps: Comfortable with common Linux commands and Shell scripting. Experience with Amazon Web Services - EC2, RDS. Experience with Bitbucket, Bamboo. General: Keen eye on code/algorithm performance. Attention to details. Enjoy coding. Passionate about technologies. Happy to learn. Good communication.
Skills: Unix shell AngularJS Hibernate Ionic Framework
Fixed-Price - Intermediate ($$) - Est. Budget: $250 - Posted
Hi ! I got few simple tool written in python ! Problem in them is that those tools are very slow ! I need decent performance improvemnt for them ! Tool 1: https://mega.nz/#!M00BVCxS!n4UbvDvv-z4PMTE9iLcdrAWBH3F_tVgB5KGL_AmufcQ Consits of few modules: - wn_test.py - add multithreading - improve algorithm for better performance if possible - maybe using indexed database instesd of file as data source would help? - lsa_train.py - add multithreading if possible - make as fast algorithm as possible - should work with files like 50GB but not eat more than 75% of computer RAM - lsa_train.py - already multothreaded ! but still very slow !! need decent improvemnt because LSA* scripts are most important to me Tool2: https://mega.nz/#!8wEwAZQS!s8EAQK27Lh1IiA5XMbjGv1oISjbmSyOXKwIK5Phbatw removes duplicates from parallel sets of texts. Now it works but problem is that I want to process 300GB data and the tool tries to load all into memory that needs to be solved. Also introducing multithreading is needed. Other algorithmical improvements are not needed but well seen if possible. Tool3: https://mega.nz/#!E0tkUKDY!4CxlRzz3omo2ux3CpUjtsqls0wWw_QLkPbEGgHdG4uI Works good, but too slow. I would need to add multhreading (but the tools should not consume more that 75% of PC RAM). Other algorithmical improvements are in my opinion requred if possible.
Skills: Unix Artificial Neural Networks CUDA Deep Neural Networks