Senior Digital System Architect

The role

You will own the design and implementation of real-time synchronous control systems for a photonic quantum computer. You will work with physicists and engineers to turn experimental goals into digital system architecture through modeling, implementation, and verification.

What you will do

• Work with physicists to turn experimental goals and user needs into a coherent control architecture and functional requirements
• Design real-time control algorithms and evaluate tradeoffs among performance, latency, throughput, and hardware resources
• Build cycle-accurate Python models of the control system
• Use simulations to explore design tradeoffs and support system-level tests
• Implement RTL IP cores in SystemVerilog and verify agreement with Python models
• Write comprehensive Python tests for control models and RTL IP cores using Cocotb and Verilator
• Document system behavior, assumptions, design decisions, and IP interfaces

Required qualifications

• Background in experimental physics, quantum computing, electrical or computer engineering
• Experience owning open-ended scientific or technical projects from investigation through implementation and validation
• Typically around five years of professional experience in demanding technical work, or a PhD or postdoc involving substantial hands-on hardware work
• Experience with Verilog or VHDL
• Strong Python programming skills
• A strong interest in understanding the physical system being controlled
• Excellent communication and collaboration skills

Nice to have

• Experience with distributed real-time systems requiring precise synchronization and deterministic low-latency data links
• Experience with digital designs under demanding clock-frequency and latency constraints
• Experience developing instrumentation or controls for R&D or scientific experiments
• Experience with FPGA tooling (AMD/Xilinx preferred)
• Experience with Python for verification (Cocotb)
• Knowledge of linear optics or quantum computing
• Experience using Git in multi-developer projects

Benefits

• Competitive health coverage for you and your dependents
• 401(k) with company match
• Equity grants
• Access to financial wellness tools and planning resources
• Wellness benefits
• Family support programs
• Life and disability insurance
• Paid leave programs
• Company-designated paid holidays
• Discretionary time off (DTO)
• End-of-year company shutdown

About the company

PsiQuantum's mission is to build the first useful quantum computers using silicon photonics. The company focuses on building and deploying million-qubit, fault-tolerant quantum systems.