Freelance Embedded Application Linux Network - Markdorf/Remote - 12months

My customer are currently looking for a specialist who will be responsible for network programming, quality of service, packet queuing, bandwidth management, and working with Ethernet IP switches with hybrid working. 

Tech stack: (Key skills required for this project)
Embedded linux
Network applications

Responsibilities (at least 3 responsibilities)
Needs a specialist in this field:

Experience in Net filter, IPTables, eRouter and Network layers (TCP/IP).
? Experience in protocols: Ethernet/ARP ICMP UDP TCP IPv4 IPv6 DHCPv4/v6 TFTP
? Experience in Linux Network stack and NexGen/NexGen2 Network stack
? Network Applications: Telnet Server, TFTP Client, and Echo Server.