Jul 2023 – May 2024 · 10 mos · Hybrid

• Worked on DRM based kernel mode GPU drivers for Exynos SoC platforms. Responsibilities include developing new features for the latest generation of GPUs, owning pre silicon, bring up , commercialisation and post commercialisation activities for GPU kernel drivers. Also debug wide range of issues related to GPU performance, power management, cache coherency, overall system stability, etc. Work with hardware and user mode driver teams to debug rendering and compute pipeline related issues.
• Skills: Linux kernel, Device drivers, drm, libdrm, AMD GPU, understanding of GPU software stack, Rendering APIs (Vulkan, Open GL, OpenCL), ArmV8 -A, SOC software development, Exynos

Nov 2021 – Jun 2023 · 1 yr 7 mos

• Worked on Windows Over Arm SOC platforms, developing kernel mode drivers for Adreno GPUs on Windows Operating systems. Lead a 4-member team in Hyderabad India, responsible for feature development, pre-silicon, bring-up and commercialization of GPU kernel mode drivers for new generation Windows over Snapdragon SOCs. Worked on development of new WDDM versions and various features like GPU power management, memory management, interrupt handling, firmware loading, HFI for CPU - GPU controller communication, GPU preemption, timeout detection, reset/recovery mechanism.
• Responsibilities also include debugging and fixing issues related to GPU performance, frame corruptions/rendering glitches, system stability, concurrency/multi-threading, power and thermal management, boot-up, GPU initialization, suspend-resume, etc, reported from WHCP Certification testing and various OEMs. Also worked on developing Windbg debugger extension in C++ for analyzing kernel dumps and debug kmd issues. Designed and developed techniques to automate analysis and triage of ram dumps by developing python-based scripts and Microsoft's pykd extension for Windbg, thereby significantly reducing developer’s manual efforts for issues analysis. Other responsibilities include task planning, mentoring and training team members.

Mar 2018 – Oct 2021 · 3 yrs 7 mos

Aug 2017 – Jan 2018 · 5 mos · Bengaluru, Karnataka, India

• Worked on Betula Bluetooth stack development and upgradation (4.x compliant, low energy), for various platforms (Linux/QNX/ANDROID/Windows), aimed at embedded Automotive market space. Fixed various BT Stack issues reported by customers on various products, mainly including Bluetooth-SIGs Profile Testing Suite(PTS), Automotive audio systems, etc. Also worked on prototyping Bluetooth Low Energy based beacons, used for general information broadcasting in public places like Malls, Hospitals, etc.

Sep 2015 – Jul 2017 · 1 yr 10 mos · Bengaluru Area, India

• Have worked on development of products like Bluetooth Headsets and Audio Gateways (Bluetooth dongles)over CSR SDK and BlueCore ICs solution. Worked on developing new features for applications based on Bluetooth profile like HFP(involving In-band Ringing, Proprietary Wide-band Codec Support, etc), A2DP, AVRCP. Also worked on development of proprietary transport protocols using SPP as transport layer.

Sep 2013 – Jul 2015 · 1 yr 10 mos · Kolkata Area, India

• Worked on implementation of TDLS feature, and have experience working with WiFi drivers and wpa-supplicant layer on android platform. Worked on developing test layers on top of Bluedroid stack for the following Classic Bluetooth protocols L2CAP, RFCOMM, SDP, etc, as part of BT Sig Certification of device. Also worked on fixing various stack and profile layers bugs, found during BT SIG certification process.