3 to 4 years of experience in IT industry, more specifically in AIX/LINUX/UNIX OS skills
Extensive experience in programming in C
C (with data structures/advanced data structures), compilation stages, UNIX/Linux commands, shell scripting, UNIX Internals (process management, memory management, File system management, Inter process communication, io, socket programming), familiarity with binary/octal/hex/ascii packets and decode them to control structures, crash analysis, AIX system boot process and issues.
System Cloning, Backup, mksysb, Familiarity with AIX/Linux environment , Commands and filesystem.
Os Internals : Knowledge of IPC(Inter process Communication), Semaphore, Mutex, Process Synchronization, Shared Memory, Process control block
VMM (Virtual Memory Mgmt) Virtual Address, Virtual Memory, Memory Management, DMA, Memory Leaks, CPU Scheduling, Process states, System throughput, CPU scheduling algorithms, Page replacement policy, page tables, Page-frame mapping, Page replacement algorithms
Component Specific skills :
Experience on AIX/VIOS, Virtualization, C & Socket Programming.
Knowledge on Networking Concepts and its Protocols.
In-depth understanding of TCP/IP stack and Device Driver internals.
Experience using debugging/analysis tools such as tcpdump/iptrace, Wireshark, KDB, GDB/DBX, cscope.
Knowledge on Network configuration and workings of Etherchannel, Shared Ethernet Adapter, SR-IOV, vNIC, Virtual Ethernet Adapter on AIX/VIOS.
Extensive Experience using HMC GUI/cli
Excellent communication both written and verbal, Should have experience of handling cases of large customers issues, Client facing.
Preferred Technical and Professional Expertise
Good understanding of the Server Architecture ,Virtualization concepts, TCP-IP protocols/RFC’s.
Proven experience in Programming using C/advanced C programming language. Shell Scripting , perl scripting skills are added advantage/desirable skills.
Setting up lab environment to recreate the client issue to debug/troubleshoot the issue, root cause the issue, fix the issue on lab setup and verify/validate the fix.
Experience in using debugging tools like KDB/kdb/GDB, trace/truss/LMT analyzer’s.
Should have very good Networking Skills: IPv4/IPV6 Routing, Ethernetchannel Broadcasting and Multicasting.
Very good experience in using Networking Protocols: TCP-IP, UDP, ICMP, ARP
Good knowledge of Wireshark Packet Analyzer, KDB for Kernel Trace Analysis and Dump Analysis. switch concepts and understanding of VLAN and shell scripting
Must have good understanding of TCPIP & basic trouble shooting, Unix Internals & IPC mechanisms, Hands on in debugging like gdb or kdb , OS internals