System Programming Jobs

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Hourly - Expert ($$$) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We are a fast growing e-Commerce custom product retailer (products made from customer photos). We are currently seeking the services of a systems architect to conduct and give advice on the following on system and hosting architecture. Our design tool/webapp is hosted on Amazon EC2. Our ecommerce database is hosted externally to our website (hosted on AWS). Our php eCommerce platform is hosted on a dedicated server (may need upgrading/migrating). We are after some advice on best configuration and optimisation of database. The initial review and advice also has potential to go from a one-off project to an ongoing consultation and monitoring/maintenance service. Any questions before submitting your proposal feel free to contact us.
Skills: System Programming Amazon EC2 Amazon S3 Amazon Web Services
Fixed-Price - Expert ($$$) - Est. Budget: $200 - Posted
Network Programming in Linux C++ tcp performance BUG. Network Simulation: There is a pcap based capture from pcap_handle interfaces to capture packets and generate a simulated response or forward otherwise. This application deploys in a cluster or at least two machines, which I will tell you how if your proposal is selected. There are bugs with UDP iperf out-or-order packet reception that needs to be solved. For distributed implementation TCP throughput (iperf) is very low say 20Mbps or sometimes 1Mbps. Performance needs to be improved by solving the bugs. expected throughput is ~800Mbps.
Skills: System Programming C++ Computer Networking Network Programming
Fixed-Price - Expert ($$$) - Est. Budget: $3,000 - Posted
Hello, We need some quotes for a programmer/application developer to design, program, and build our companies portal. We're looking for a system that customer can log into with a username and password, upload links and documents, and communicate inside the portal with employees. We already have specs and know exactly how we want the portal set up as we can provide you inside examples of this company and how their system is set up - This will be an on-going project. See attachments below with exactly how we need out system set up. Please send us quotes to development this system for our company.
Skills: System Programming Application Programming C++ Database Administration
Hourly - Expert ($$$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
Am looking to talk to talk to an OPC , SCADA expert to ask a few questions. This is a post for 2 hr consulting . I want to use 2 hrs in 2-4 sessions over 2 weeks. Expertise needed: prior design and programming experience in * OPC * OPC- UA * PLCs * SCADA * OPC applications/ clients
Skills: System Programming PLC & SCADA