Hands-on RF IC Designer — EM Simulation & Automation

Braintrust; United Kingdom; On-site; GBP 60,000 - 90,000; Full time

Job summary

Braintrust seeks an experienced RF IC designer to create on-chip passives, run EM simulations, and iterate designs to meet tight specs (spiral inductors, transformers, baluns, transmission lines).

You will script simulations in Python, read S-parameters, and verify layouts using GDS tools. The role requires hands-on layout experience and familiarity with open-source tools like openEMS and ngspice; SG13G2 experience is a plus.

Qualifications

• Hands-on RF IC design, including laying out passives such as spiral inductors, transformers, baluns.
• Experience reading S-parameters, inductance, and quality factor from EM simulations.
• Familiarity with GDS layouts and S-parameter files.

Responsibilities

• Write eval tasks and reference designs meeting chip-on specifications.
• Develop automatic checks to re-simulate and compare outcomes against specs.
• Start with a pilot of 5 tasks and iteratively scale.

Skills

RF IC design

EM simulations

S-parameters analysis

Python scripting

GDS layouts

Tools

KLayout

Palace

openEMS

ngspice

scikit-rf

Job description

Braintrust seeks an experienced RF IC designer to create on-chip passives, run EM simulations, and iterate designs to meet tight specs (spiral inductors, transformers, baluns, transmission lines).

You will script simulations in Python, read S-parameters, and verify layouts using GDS tools. The role requires hands-on layout experience and familiarity with open-source tools like openEMS and ngspice; SG13G2 experience is a plus.