Yaroslav H.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I have more than 20 year experience in software development in telecom/networking domain; designed, developed and maintened various embedded/telecommunication/IoT/network systems. My key areas of expertise are: ● Legacy Networking Technologies: Ethernet networks, switching, bridging and routing algorithms, L2/L3 protocols and technologies (VLANs, STP, LLDP, ISDP, LAG, LACP, QAV, QoS, BGP, OSFP), TRILL, TCP/IP, ARP, ICMP, IGMP, DHCP, DNS, IPv4/IPv6, IP in IP tunneling, 802.1ag (CFM) , VoIP, PoE, management protocols (CLI, SNMP, WEB, TR-069, various customer proprietary protocols etc.) ● Software Defined Networks: OpenFlow, OpenDaylight, DPDK, NBI(northbound interface), CDPI(Control to Data-Plane Interface), SDN Applications. ● Embedded Systems: Linux/Unix, VxWorks, eCos, uBoot, OpenWRT, embedded software development, Linux IP stack, drivers, gdb, jtag, etc ● Programming: C/C++, Python, Java, Assembler x86, GNU toolchain, cross platform toolchains ● Emulations: Virtual Box, docker, vagrant, QEMU, lxc container, vmWare, kvm ● Tools: ClearCase, Perforce, Git, IXIA, WireShark, tcpdump, spirent, tcpreply