Senior Signal Integrity Engineer
Graphcore is a SoftBank-owned AI-compute company developing AI processors, systems, and software for machine-learning workloads.
Funding history
About Graphcore
Graphcore develops Intelligence Processing Units (IPUs) and the Poplar SDK for building and running machine-learning applications. It continues operating under the Graphcore name as a wholly owned SoftBank Group subsidiary.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will perform end-to-end signal-integrity analysis for blade- and rack-level architectures. You will simulate and validate I/O channels, correlate measurements with simulations, resolve margin gaps, guide design decisions, review hardware data, and communicate technical recommendations.
Requirements
- Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or a related field
- Experience in signal integrity for high-speed digital systems
- Hands-on measurement expertise using VNA, TDR, BERT and high-speed oscilloscopes
- Experience measuring and analyzing S-parameters, impedance profiles, eye diagrams, jitter, timing margins, insertion loss, return loss and crosstalk
- Knowledge of PCIe Gen4/5/6, Ethernet, DDR, SerDes and related I/O technologies
- Experience with HFSS, ADS, Sigrity, CST, SPICE or equivalent SI/PI simulation tools
- Ability to correlate laboratory measurements with simulations
- Communication and technical-reporting skills
Responsibilities
- Perform end-to-end signal integrity analysis for blade- and rack-level architectures
- Analyze and optimize high-speed and low-speed I/O interfaces and interconnects
- Perform time-domain and frequency-domain simulations
- Support lab validation using measurement equipment
- Correlate simulation results with lab measurements
- Collaborate on I/O channel performance optimization
- Guide board layout, stack-up, routing and system design decisions
- Review schematics, layouts, simulation results and validation data
- Prepare validation reports, measurement summaries, debug findings and technical recommendations
Benefits
- Flexible working
- Medical coverage
- Dental coverage
- Vision coverage
- Flexible Spending Accounts
- Health Savings Accounts
- Disability insurance
- Life insurance
- 401(k) retirement plan
- Commuter benefits
- Wellness services
- Employee Assistance Programme