Digital IC Implementation Engineer

Raspberry Pi Foundation; Cambridge; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Private medical insurance

Life assurance 4× base salary

Employer pension contributions 8%

Income protection 75% of base salary

Electric vehicle salary sacrifice

Job summary

Raspberry Pi Foundation seeks a Digital IC Implementation engineer to join the ASIC team in Cambridge, working full-time on-site to deliver next-generation silicon. You will drive physical design from RTL to GDS, optimize timing, power and area, and mentor colleagues.

The role covers constraint development, UPF, floorplanning, CTS, STA and sign-off, with opportunities to influence all stages of the silicon flow from specification to production.

Qualifications

• Extensive tapeout experience on advanced technology nodes.
• Deep knowledge of modern place-and-route flows and methodologies.
• Experience with full tapeout sign-off including Physical Verification, STA and Power Integrity.

Responsibilities

• Contribute to physical design from RTL to GDS.
• Set timing constraints, UPF rules and CTS.
• Develop high-quality floorplans and power grid designs.
• Collaborate on design discovery, ECO methodology and physical verification.
• Mentor teammates and share knowledge.
• Work on site in Cambridge office.

Skills

Multiple tapeouts

Place & route

Sign-off experience

Floorplanning

UPF constraints

Synthesis & RTL input

Power Integrity

Scripting/automation

Tools

Cadence implementation tool flow

Job description

Raspberry Pi is seeking a Digital IC Implementation engineer to join our expanding ASIC team to help deliver our next-generation products. We have been building our own silicon at Raspberry Pi for some years now, starting with the RP2040 microcontroller in 2021, and following with the RP1 southbridge chip for the main Raspberry Pi platform on Raspberry Pi 5. Our second-generation microcontroller, RP2350, was released in 2024. The ASIC team looks after everything in the silicon flow, from specification through design, verification, and implementation, including ATE test and qualification. With a small team, we get involved in all aspects of getting successful products into production.

As a Digital IC Implementation Engineer, you will be expected to work closely with the design team to understand requirements and close ambitious performance, power, and area goals. You will contribute in all aspects of physical design from RTL to GDS, including timing constraints, UPF, synthesis, design discovery, place & route, CTS, STA, formal verification, ECO methodology, and physical verification.

The successful candidate will be:

• Able to demonstrate a good level of understanding in all aspects of the implementation flow, from synthesis through to silicon sign-off.
• A specialist in at least one area of the flow.
• Willing to share knowledge and mentor other members of the team.
• Able to demonstrate excellent interpersonal and communication skills.
• Able to work on site in our Cambridge office.

Requirements and skills

This role requires a good level of experience and a wide range of skills:

• Multiple tapeouts on advanced technology nodes.
• Strong understanding of the details of modern place and route flows, and insight into methodologies.
• Experience of full sign-off for tapeout, including Physical Verification, STA, and Power Integrity.
• Experience of chip-level floorplanning, hierarchical methodologies, and power grid design.
• Experience of developing constraints, UPF, and high-quality floorplans.Experience with Synthesis and giving input into RTL designs for better physical QOR.
• Scripting skills both to drive tools and to analyse results.

The following would also be useful:

• Experience of Cadence implementation tool flow.
• Experience of implementation complex designs.
• Advanced FinFET technologies.
• Good understanding of design/front-end processes.

The role is based in Cambridge with an expectation of full-time office attendance.

• Competitive salary based on level of experience
• Employer pension contributions of 8% when the employee contributes 4% of their gross salary into the salary sacrifice scheme
• Life assurance of 4 × base salary
• Income protection of 75% of base salary in the event of critical illness, commencing after 13 weeks of long-term illness or absence from work
• Private medical insurance (medical history disregarded)
• Access to our electric vehicle salary sacrifice scheme, subject to eligibility