Device Modelling & PDK Engineer

Wolviston Management Services Limited; Tees Valley; On-site; GBP 50,000 - 70,000; Full time

Job summary

Wolviston Management Services Limited is supporting a client in recruiting a Device Modelling & PDK Engineer to join their specialist engineering team in the semiconductor field. You will contribute to developing MMIC Process Design Kits and ensure device models are accurate for customer design requirements.

The role focuses on characterisation and modelling of GaN and GaAs devices, RF/microwave testing, and collaboration with design engineers to deliver reliable design solutions while keeping

Qualifications

• Degree in Electronic Engineering, Physics or closely related discipline.
• Experience in DC and RF/microwave semiconductor device characterisation.
• Strong understanding of RF/microwave device physics and behaviour.
• Experience performing RF/microwave testing and interpreting device performance data.
• Understanding of small-signal and large-signal circuit theory and device equivalent circuits.
• Knowledge of compact semiconductor device modelling.
• Programming experience within testing or engineering environments.
• Strong analytical and problem-solving abilities.
• Ability to work independently within a multidisciplinary engineering team.

Responsibilities

• Characterise and validate GaN and GaAs devices for MMIC PDKs.
• Develop compact device models for GaN and GaAs.
• Perform DC, pulsed I–V, noise, small-signal and large-signal microwave tests.
• Generate and validate small-signal and large-signal device models and passive models.
• Support development, enhancement and maintenance of MMIC PDKs.
• Provide technical support to customers using PDKs and respond to queries.
• Collaborate with design engineers to understand requirements and feedback.
• Contribute to new semiconductor process development through device assessment.
• Produce detailed technical reports and documentation.
• Stay up-to-date with emerging modelling techniques.

Skills

Analytical ability

Programming experience

Attention to detail

Education

Degree in Electronic Engineering or Physics

Tools

IC-CAP

ADS

Microwave Office

Python

LabVIEW

Job description

Device Modelling & PDK Engineer

Location: Darlington, Co Durham

Contract Type: Permanent / Full Time

Closing Date: Nov 5th, 2026

Ref: 1736242

The Opportunity

Wolviston Management Services are delighted to be supporting our client in the recruitment of a talented Device Modelling & PDK Engineer to join their specialist engineering team.

Our client operates within the highly technical semiconductor industry, developing advanced microwave GaN and GaAs device technologies for demanding RF and microwave applications.

This is an excellent opportunity for an experienced engineer with a strong background in semiconductor device characterisation, RF/microwave testing and compact device modelling to contribute to the development of advanced Process Design Kits (PDKs).

Working alongside experienced design, development and engineering teams, you will play a key role in ensuring device models are accurate, reliable and optimised to support customer design requirements.

The Role

As Device Modelling & PDK Engineer, you will be responsible for the characterisation, modelling and validation of compound semiconductor devices, supporting the development and continuous improvement of MMIC Process Design Kits.

You will work closely with device engineers, designers and technical teams to ensure models accurately represent device performance and provide customers with effective design solutions.

Key responsibilities will include:

• Performing and coordinating RF/microwave device characterisation to support device model development and validation.
• Developing compact device models for GaN and GaAs semiconductor technologies.
• Carrying out DC, pulsed I-V, noise, small-signal and large-signal microwave performance testing.
• Generating and validating small-signal and large-signal device models and passive component models.
• Supporting the development, enhancement and maintenance of MMIC Process Design Kits (PDKs).
• Providing technical support to customers using PDKs and responding to design-related queries.
• Working closely with design engineers to understand requirements, resolve technical challenges and incorporate feedback.
• Supporting new semiconductor process development through device assessment and characterisation.
• Producing detailed technical reports, documentation and supporting engineering information.
• Providing specialist device characterisation expertise to development projects and operational teams.
• Keeping up to date with emerging device modelling and characterisation techniques to support continuous improvement and technological competitiveness.

About You

We are keen to hear from technically capable engineers with experience in semiconductor device characterisation and RF/microwave technologies.

To be considered, you will ideally have:

• A degree in Electronic Engineering, Physics or a closely related discipline.
• Practical experience in DC and RF/microwave semiconductor device characterisation.
• A strong understanding of RF/microwave device physics and semiconductor device behaviour.
• Experience performing RF/microwave testing and interpreting device performance data.
• A sound understanding of small-signal and large-signal circuit theory and device equivalent circuits.
• Knowledge and appreciation of compact semiconductor device modelling.
• Programming experience, particularly within testing or engineering environments.
• Strong analytical and problem-solving abilities with excellent attention to detail.
• The ability to work independently while contributing effectively within a multidisciplinary engineering team.

Desirable experience includes:

• Experience working with compound semiconductor technologies, particularly GaN or GaAs.
• RF on-wafer testing and semiconductor device measurement techniques.
• Compact device model extraction and validation.
• Knowledge of small-signal and large-signal device modelling techniques.
• Experience using model extraction software such as IC-CAP.
• Familiarity with RF/microwave CAD tools such as ADS or Microwave Office.
• Programming experience using Python or LabVIEW within a test environment.
• A higher degree in Electronic Engineering, Physics or a related discipline.

Personal Attributes

We are looking for someone who is technically curious, proactive and passionate about semiconductor technology.

You will be a self‑motivated individual who takes ownership of technical challenges, demonstrates initiative and works effectively to demanding project timescales.

A willingness to learn, develop new technical capabilities and contribute to a collaborative engineering environment will be essential.

Additional Requirements

Applicants must be UK nationals and willing to undergo security clearance, in accordance with the requirements of the position.