DFT Engineer

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

Benefits offered by this job

Competitive salary based on experience

Employer pension contributions 8%

Life assurance of 4 base salary

Income protection 75% after 13 weeks

Private medical insurance

Electric vehicle salary sacrifice

Job summary

Raspberry Pi Foundation is seeking a DFT engineer to join our ASIC team to deliver next-generation silicon. You will create, implement, and verify DFT solutions across the full silicon flow, from specification to production, ensuring quality for volume shipping.

The role requires defining DFT strategies, experience with Tessent DFT tools, ATPG/MBIST, and mentoring colleagues while balancing coverage, cost, and time to market.

Qualifications

• Experience with IC development flows and DFT methods.
• Familiarity with Tessent DFT tool flow and IP test.
• Understanding of on-chip clocking and IP-level DFT concepts.
• Experience with ATPG, MBIST and simulation debug.
• Willingness to mentor and share knowledge with the team.

Responsibilities

• Define a DFT strategy at chip, subsystem and IP levels.
• Implement and verify DFT solutions across ASIC designs.
• Balance test coverage, cost, and time to market.
• Debug timing, power, and formal equivalence issues during sign-off.
• Collaborate with a small team and mentor others.

Skills

Tessent DFT tools

ATPG/MBIST

IC development flows

IJTAG familiarity

TCL scripting

IP-level DFT concepts

Education

Electronic engineering / Computer science degree

Tools

Tessent DFT tools

UPF issues

Job description

Raspberry Pi is seeking a DFT 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 DFT Engineer you will be responsible for creating, implementing, and verifying DFT solutions on future Raspberry Pi ASIC designs to ensure quality standards are maintained for products shipping in volume. You will use advanced DFT methods to balance requirements for test coverage, cost, and time to market.

The successful candidate will be:

• Able to define a suitable DFT strategy at chip, subsystem, and IP level, including structural and functional methods, and make pragmatic trade-offs between methods.
• Experienced with Tessent DFT tool flow for inserting MBIST, EDT, SSN, scan controls via IJTAG, and IP test using ICL/PDL, in both flat and hierarchical designs.
• Experienced in verification of DFT structures, and debugging related issues.
• Able to support DFT through implementation and sign-off, including generating timing constraints and debugging timing, power, and formal equivalence issues.
• Willing to share knowledge and mentor other members of the team.

Requirements

Key requirements:

• Experience with IC development flows.
• Experience with Tessent DFT tools.
• A good level of understanding of complex IP issues for DFT, including on-chip clocking.
• Experience in ATPG, MBIST, and simulation debug, including UPF-related issues.
• Willingness to contribute and share activities with a wider team.
• Good scripting skills, including TCL.

The following would also be useful:

• Ability to demonstrate an understanding of advanced silicon technologies and fault models.
• Familiarity with test access standards, e.g. IJTAG/IEEE1687.
• Familiarity with vector translation and bring-up on ATE platforms.

In addition, candidates should have:

• A degree in electronic engineering, computer science, or a related discipline.
• A proactive approach to troubleshooting.
• The ability to coach other members of the team.

Benefits

• 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