Onkar Patil Email and Phone Number

• Designed and implemented KLMs, image signing (bzImage, initramfs) infrastructure using Public-key cryptography.• Designed and implemented boot time optimization which saved 28% of boot time.• Developed / integrated Yocto recipes for SDK to build new tools.• Debugged kernel using different tools such as strace, audit logs, function tracing, function graph, kprobe, etc.

• Develop kernel / userspace Linux device drivers for hot-pluggable optical modules (SFPs), NICs in enterprise routers (L3)• Work on development of device drivers of MAC, PHY, I2C Mux, and GPIO Expanders for HW bring-up.• Designed and developed multithreaded application along with queue to push config messages while short-lived thread returns• Improve driver quality by optimizing, bug fixing and unit-testing the code of OS, running on Linux based x86 & ARM platforms• Build system performance testbed covering all traffic patterns for SDWAN & non-SDWAN modes• Integrated the Unbound-DNSSEC library with Cisco’s SDWAN which helped the solution to be FedRAMP Compliant• Debug embedded software using GDB as well as in-circuit emulator (JTAG)• Use test tools, and interact with HW, SoC design teams[used – Embedded C, Embedded Linux, SoC, Buildroot, OpenWRT, Yocto]

• Coordinated in setting up automation build server (Jenkins) which established a continuous integration scheme to the build process• Performed Kernel builds using buildroot• Increased testing productivity by 50% with bash script implementation to automate the testing process• Worked on RAM disk image generation, NAND flash programming, loadable device drivers for STBs (Set-Top Box)• Ported LED driver from GPIO to PWM based for headless STB in embedded C

• Developed firmware in C for microcontroller, Human Machine Interface (HMI) & inter-device communication for a control system• Engineered an algorithm for ‘Auto-Tune PID’ as a Function Block, resulted in improvement by 40% each, in case of temperature & humidity controlling– customer awarded a letter of appreciation for this achievement• Worked in cross-functional teams to design product specifications• Prepared validation strategies for hardware as well as software verification

• Developed automation test sequences for engine powertrain & emission control• Worked on validation of Cummins ECU’s (Engine Control Unit) by developing Automated Testing Sequences in NI TestStand from software requirement specifications (SRS) – using Hardware-In-Loop (HIL)testing environment #AutomationTesting #UnitTesting #RegressionTesting #agile #ClearCase #Matlab #Simulink