Senior/Principal Digital Logic Circuits Engineer for NAND Flash

brightecs innovation pte. ltd.; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

BRIGHTECS INNOVATION PTE. LTD. in Singapore is looking for a skilled engineer for digital IC design focusing on NAND Flash technologies. Responsibilities include architecture design, verification of digital control logic, and collaboration with firmware and system teams.

The ideal candidate should have a Master's degree in relevant fields, at least 5 years of experience in digital IC design, and strong collaboration skills. Experience with ONFI protocol and NAND Flash projects is a plus.

Qualifications

• Minimum 5 years of digital IC design experience.
• In-depth understanding of ONFI protocol specifications.
• Excellent cross-functional collaboration skills.

Responsibilities

• Design architecture and RTL encoding for digital control logic.
• Develop command decoders and timing control logic.
• Participate in chip bring-up and performance optimization.

Skills

Digital IC design experience

Understanding of ONFI protocol specifications

NAND Flash integration experience

Control logic design experience

Collaboration skills

Education

Master's degree in Microelectronics, Electrical Engineering or related fields

Job description

Key Responsibilities

• Responsible for the architecture design, RTL encoding (Verilog/SystemVerilog), and functional verification of digital control logic in 3D-NAND memory;
• Design a state machine (FSM) to manage complex NAND operation processes (such as Program, Read, Erase, Copy-back, Suspend/Resume, etc.);
• Develop a command decoder and address/parameter parsing logic to ensure compliance with JEDEC and internal specifications;
• Implement high-precision timing control logic to accurately generate the internal timing signals required for various operations (such as tR, tPROG, tBERS, etc.);
• Deeply involved in the physical layer and link layer logic implementation of ONFI (Open NAND Flash Interface) or Toggle Mode interface protocols, supporting DDR, NV-DDR, NV-LPDDR, and other modes;
• Collaborate with the analog/mixed-signal team to define array access timing, voltage switching windows, and read/write path control interfaces;
• Collaborate with firmware (FW) and system architecture teams to develop register maps, interrupt mechanisms, error handling strategies, and debug interfaces;
• Support UVM verification environment setup, provide Design for Testability (DFT) support, and participate in FPGA prototyping;
• Participate in chip bring-up, post-silicon debugging, and performance optimization to ensure products meet specification requirements.

Required Qualifications

1. Education: Master's degree or above
2. Major: Microelectronics and Integrated Circuits, Electrical Engineering, Computer Engineering, or related fields;
3. Other Requirements:

• Minimum 5 years digital IC design experience, experience in NAND Flash or SSD controller projects is a plus;
• In-depth understanding of ONFI 4.x or Toggle 2.0/3.0 protocol specifications, with practical interface IP development or integration experience;
• Experience in control logic design under 3D-NAND or TLC/QLC architectures is a plus;
• Familiar with ECC control interfaces (such as LDPC/BCH engine scheduling and interaction);
• Excellent cross-functional collaboration skills, able to communicate efficiently with simulation, firmware, verification, testing, and product teams to jointly develop technical solutions.
• Experience with successfully tape-out and mass-produced memory chip projects is a plus.