Pre-Silicon (DDR) Validation

About the job

Choosing Capgemini means choosing a place where you’ll be empowered to shape your career, supported by a collaborative global community, and inspired to reimagine what’s possible. Join us in helping leading Consumer Products and Retail Services (CPRS) organizations unlock the value of technology and drive scalable, sustainable growth.

Your Role

1. Understanding Pre-Silicon Validation for DDR4/LPDDR4/LPDDR5

• Pre-silicon validation means verifying design and firmware before the silicon chip is fabricated. It includes simulations, emulation, and formal verification to catch bugs early.
• For DDR memory interfaces (DDR4, LPDDR4, LPDDR5), pre-silicon validation focuses on:
• Protocol compliance (timing, command sequences, training sequences)
• Signal integrity modeling and timing margins
• Firmware interactions (training firmware, calibration sequences)
• Power management features (especially for LPDDR5 with deeper power states)

2. Key Tasks in Pre-Silicon Validation of DDR Firmware

• Simulation & Emulation
  Using hardware description languages (HDL) and simulators (like Synopsys VCS, Cadence Incisive) for DDR PHY and controller.
• Firmware Debugging & understanding of the firmware algorithms
  Writing and testing memory training and calibration firmware:
• Write leveling
• Read leveling
• DQ/DQS delay adjustments
• ZQ calibration
• VREF calibration
• Testbench Development
  Creating verification environments that simulate DDR traffic, inject errors, and validate response.
• Protocol Checks
  Ensuring DDR commands follow JEDEC standards (DDR4/LPDDR4/LPDDR5 specs).
• Power Management Validation
  Especially critical for LPDDR5 — validate low power states, self-refresh, deep power down modes.
• Integration with SoC Firmware
  Ensuring smooth handoff between firmware and DDR controller.

Your Profile

. Skills for 4-5 Years Firmware Experience

• Proficient in C for low-level firmware
• Experience with hardware simulators and emulators
• Understanding DDR PHY/controller architecture and JEDEC DDR standards
• Familiarity with DDR training algorithms and calibration routines
• Debugging skills using logic analyzers, oscilloscopes, and simulation waveforms
• Version control and collaborative development (Git, Gerrit)
• Good knowledge of memory controller registers and MMIO access

What You’ll Love About Working Here

We value flexibility and support our employees with Hybrid work options and adaptable schedules to maintain a healthy work-life balance. Our inclusive culture brings together diverse professionals committed to growth, innovation, and excellence. You’ll have access to continuous learning opportunities and certifications in emerging technologies like cloud and AI.

About Us

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.