FPGA Engineer - Quantum Networking (Early Career)

Nu Quantum Ltd.; Cambridge; On-site; GBP 55,000 - 90,000; Full time

Benefits offered by this job

Flexible working options

DIS cover

Sabbatical after 4 years

Employee referral scheme

Private Medical & Dental

On-site gym

Cycle scheme

28 days leave

Cambridge Gardens access

Job summary

Nu Quantum Ltd. is seeking an early‑career FPGA Engineer to help implement real‑time control systems for quantum networking hardware. The role emphasizes hands‑on development with Xilinx FPGAs, SystemVerilog/Verilog/VHDL, and collaboration across software, hardware, and physics teams.

Professional exposure through university projects, placements, or internships is valued. Visa sponsorship is available and location is Cambridge, UK, with a supportive environment for growth in quantum information

Qualifications

• Proficiency in SystemVerilog/Verilog/VHDL for FPGA projects.
• Experience with Xilinx FPGAs; Zynq/Ultrascale design exposure preferred.
• Familiarity with SPI, I2C and Ethernet interfaces.
• Experience writing/testbenches and debugging real‑time systems.
• Strong RTL design fundamentals and timing/CDC concepts.
• Python scripting for automation and tooling is beneficial.
• Ability to document technical work clearly and communicate results.

Responsibilities

• Design, develop, and verify RTL code for Xilinx Zynq/Ultrascale devices.
• Develop, debug, and verify real‑time control systems for quantum networking hardware.
• Collaborate with software and hardware engineers to meet project needs.
• Contribute to documentation, test plans, and technical reports.
• Assist in automation of tool flows, CI/CD pipelines, and releases.
• Support Artiq Sinara hardware and future platform iterations.
• Work with physicists and engineers to capture requirements and provide solutions.

Skills

SystemVerilog

Verilog

VHDL

Xilinx FPGA

I2C

SPI

Ethernet

Python

RTL design

Testbenches

Job description

Join Nu Quantum - Shaping the Future of Technology

Nu Quantum is at the forefront of quantum computing and advanced technology, driven by innovation, diversity, and a commitment to excellence. We're creating an environment where brilliant minds from all backgrounds collaborate to push the boundaries of what's possible.

Founded to commercialise research generated over the last decade at the Cavendish Laboratory, Nu Quantum is on a mission to shape the future of quantum information systems.

We're working on exciting technology that will improve the utility and accelerate the time-to-market of quantum computing systems. We integrate novel quantum photonic technology to form an efficient and scalable quantum networking infrastructure in partnership with world-leading companies and academic groups.

Contract Type:Full-time, Permanent

Location:Cambridge, UK

Visa Sponsorship available

Join Nu Quantum - Shaping the Future of Technology

Nu Quantum is at the forefront of quantum computing and advanced technology, driven by innovation, diversity, and a commitment to excellence. We're creating an environment where brilliant minds from all backgrounds collaborate to push the boundaries of what's possible.

Founded to commercialise research generated over the last decade at the Cavendish Laboratory, Nu Quantum is on a mission to shape the future of quantum information systems.

We're working on exciting technology that will improve the utility and accelerate the time-to-market of quantum computing systems. We integrate novel quantum photonic technology to form an efficient and scalable quantum networking infrastructure in partnership with world-leading companies and academic groups.

About the role

We're looking for an early-career FPGA Engineer, with somerelevant experience, including graduates with a strong academic, project or placement background in electronic engineering, computer engineering, embedded systems or a related discipline.

Professional FPGA experience is not essential. We're particularly interested in candidates who can demonstrate hands‑on experience through university projects, internships, placements, personal projects or previous roles.

Ideally you will have experience using Xilinx FPGAs and Zynq/Ultrascale SoCs. In this role, you will work with a multidisciplinary team to implement and debug real‑time control systems for quantum networking applications. You will work closely with software and electronics engineers, andAMO physicists to bring‑up and deploy multi‑node quantum networking systems.

As a member of the Control team, you will be responsible for developing and supporting our current hardware platforms, which includes the Artiq control system with the Sinara family of hardware, while also contributing to our next generation platform based onCERN's White Rabbit technology.This is a hands‑on role where you will get to contribute to the development of cutting edge quantum networking infrastructure.

Responsibilities

• Design, develop, and verify RTL code in SystemVerilog, Verilog, VHDL and/or Migen for Xilinx Zynq and Ultrascale devices.
• Design, develop, and verify Embedded code in C/Rust.
• Develop, debug and verify real‑time control systems using ARTIQ Sinara hardware.
• Collaborate with senior engineers to develop and verify hardware subsystems.
• Contribute to the development of debugging tools to provide in-system debug visibility of real‑time systems.
• Contribute to design documentation, test plans and technical reports.
• Contribute to automation of tool flows, CI/CD pipelines and automated release flows.
• Collaborate with physicists, optical engineers, hardware and software engineers to define requirements, capture specifications and design appropriate solutions.

Requirements

What we're looking for

Essential skills and experience

• A foundational understanding of digital design and RTL principles, with some experience using SystemVerilog, Verilog and/or VHDL.
• Experience with, or a strong understanding of, FPGA development, ideally with Xilinx or Altera devices.
• Familiarity with hardware interfaces and communication protocols such as SPI, I2C and Ethernet.
• Some experience developing and testing digital designs, including the use of testbenches and simulation.
• An understanding of concepts such as clock‑domain crossing (CDC), synthesis and timing.
• Experience with a scripting language, preferably Python.
• Strong written and verbal communication skills, with an ability to document technical work clearly.
• Curiosity, initiative and enthusiasm for learning new concepts, tools and technologies.

Desirable Skills (nice to have but not required)

These are not expected for a graduate or early-career candidate, but would be advantageous:

• Experience in low latency and/or real‑time systems.
• Experience debugging Arm or RISC‑V CPU subsystems with GDB, debuggers and trace tools.
• Experience writing embedded C or Rust.
• Verification using Cocotb and/or SystemVerilog, the use of SVAs within verification testbenches and Formal workflows.
• Experience with RF signal generation and processing, including the use of Direct Digital Synthesis (DDS) frequency synthesis techniques, RF communication protocols and modulation techniques.
• Proficiency in working with high‑speed DACs and ADCs for RF and mixed‑signal applications.
• Experience working with Linux.

Benefits

Why work with us?

At Nu Quantum, we celebrate diversity and are committed to creating an inclusive workplace where people of all identities, orientations, backgrounds, and experiences are empowered. We value diverse perspectives as a source of creativity and innovation and encourage applications from all backgrounds, including those from underrepresented and marginalised communities. Joining Nu Quantum means joining a team where you can grow professionally and be part of an inspiring mission to shape the future of technology.

• Flexible working options

• Group DIS cover (4 x salary)
• 1 month paid Sabbatical after 4 years of service
• Generous Employee Referral Scheme
• Private Medical and Dental Cover (With Vitality and Bupa)
• On‑site gym membership
• Cycle scheme
• Refreshments, including fruit and beverages, are available in the office.
• 28 days annual leave, including a 3‑day company shutdown period + UK Public Holidays
• Option to purchase up to 5 days holiday per year
• Enhanced paid family leave policies
• Access to the Cambridge Botanical Gardens