Upal Kumar Saha

About Upal Kumar Saha

4+ years of experience in development of LTE (4G) protocol layers (L2/L3) software.• 9+ years of experience in Linux Kernel, Device Driver and Linux Application development, OTA/IPSec Crypto, Data path processing, and DPDK PMDs.• Excellent design, development, and documentation skills to support cutting-edge engineering solutions with a wide range of Qualcomm products. • Experience in managing technical teams and enforcing compliance with industry standards.• Ability to quickly adapt to new environments and learn new technologies.• Good knowledge on data Structures, algorithm design and Code Optimization.Specialties: C, C++, Linux, Linux Kernel and Device Driver Development, DPDK, Qualcomm 4G & 5G Infra Platforms, 4G Protocol Stack (Layer 2 & Layer 3), Data Structure and Algorithms, System Design.

Experience

1. Senior Staff Engineer

   高通

   Dec 2025 — Present · Hyderabad, IN

   Leading Infra platform team for 5G (FSM100xx/FSM200xx/IPQ9574) and 4G (FSM99xx/FSM90xx) product lines, Qualcomm Boot (SBL, TZ and MBA), Modem (MPSS) Platform and ARM based Linux platform from Hyderabad.• Worked on multiple Qualcomm SoC (Snapdragon X50/X65, Automotive Platform, WiFi IPQ95xx) bring-ups with FSM specific requirements.• Interface design and integration of different external products like CP2130, MCP2210, (SPI-to-USB device) and SI5518 (timing solution from Skyworks) for FSM platforms. • Working knowledge of MHI (Modem Host Driver - A PCIe interface driver), involved in bug fixes and enhancements.• Responsible for bringing up multiple NXP platforms i.e, LS2088 and LX2160 and develop necessary applications and device drivers on top it.• Responsible for design and development of entire FSM control plane applications and Linux driver development (fsmMonitor, diagfwd, fpga-if, tti-intr driver etc.).• Design and development of DPDK Crypto and AF_XDP based IPSec Poll Mode Driver.• Maintainer of DPDK ETH dev and RAW Dev PMD driver for LTE and NR data path.• Experienced in developing drivers to communicate with EIP197 Rambus Crypto engine.

Education

• Vellore Institute of Technology

  Master of Technology, Computer Science and Engineering

  2009 — 2011

• WBUT

  B-Tech, Computer Science and Engineering

  2005 — 2009

• Gitam Nursery School

  Primary Schooling

  1995 — 1997

• Siliguri Boys' High School

  Secondary & Higher Secondary, Science

  2001 — 2005

Skills

• Embedded Linux
• Algorithms
• C
• Debugging
• Data Structures
• Software Development
• Device Drivers
• Lte
• C++
• Unix