Job Title: BIOS Firmware Engineer – Memory Initialization & DDR Training

Location: Banglore

Experience: 3–9 years

Employment Type: Full time

About the Role

Krisemi Design Technologies is hiring a BIOS / Firmware Engineer to develop pre-OS BIOS firmware and silicon initialization code for x86 and/or ARM SoCs. You'll work closely with firmware developers, architects, and hardware validation teams on firmware that spans both pre-silicon and post-silicon phases.

What You'll Do
Develop, port, debug, and document core firmware support for DRAM technologies: DDR4, LPDDR4/4x, DDR5, LPDDR5/5x, RDIMM, LRDIMM, 3DS
Support emulation and simulation teams in the pre-silicon phase to validate memory hardware and firmware
Work with hardware validation teams to optimize memory signal integrity, performance, and feature support
Assist with debug from initial power-on through full feature functionality
Build custom memory firmware features for internal and external customers
Coordinate with technical leads and geographically distributed teams to meet milestones

Must-Have Skills




Strong low-level C programming and debugging for embedded systems
Exposure to simulation and/or emulation platforms
Familiarity with JEDEC, SPD data, I2C/I3C, ECC, mode registers, self-refresh, and DDR4/5, LPDDR4/4x/5/5x, UDIMM/RDIMM/LRDIMM/3DS
Knowledge of DRAM initialization and training algorithms, memory timings, addressing, and overclocking
Experience debugging memory initialization and training issues

Valuable to Have
Understanding of the firmware development cycle for pre-si and post-si SoC designs
Root-causing complex failures at IP, subsystem, and system level
Board, processor, or ASIC bring-up experience
Hardware/software interface debugging using JTAG and source-level debuggers
Git/Gerrit experience
Solid written and verbal communication skills

Qualifications Bachelor's or Master's (preferred) in Computer Science, Computer Engineering, Electrical Engineering, or equivalent.

📌 Bios Firmware Engineer Bengaluru
🏢 KriSemi Design Technologies
📍 Bengaluru