Principal Antenna Engineer

Steatite Limited; Leominster; On-site; GBP 65,000 - 85,000; Full time

Job summary

Steatite Limited in Herefordshire invites applications for an RF/antenna engineer role. Based predominantly on-site, you will design and develop cutting-edge antenna solutions and lead customer queries, while supporting the Chief RF Engineer in delivering project and product excellence.

You will use CST Microwave Studio and EM tools, coordinate with cross-functional teams, mentor junior engineers, and travel internationally as required to support customers and projects.

Qualifications

• Degree in RF, Microwave, Electronic Engineering or related discipline.
• Experience delivering RF/antenna solutions from concept through test and verification.
• Proficiency with CST Microwave Studio or equivalent EM tools.
• Hands-on RF test/verification using VNAs and chamber measurements.
• Clear technical documentation and design records for reviews and governance.

Responsibilities

• Design and develop RF/antenna solutions.
• Lead customer queries and technical discussions.
• Deputise for the Chief RF Engineer.
• Conduct test and verification activities.
• Ensure product assurance and compliance.

Skills

RF engineering

Antenna design

EM theory

Customer liaison

Technical documentation

Mentoring

Autonomy

Cross-functional collaboration

Education

Degree in RF/Electronic Engineering or related field

Tools

CST Microwave Studio

VNAs

Microsoft Dynamics 365 (Project Operations/Planner)

Job description

Looking for more than just your next role? Join us in the beautiful rolling hills of Herefordshire, where you can combine an exciting career with an exceptional quality of life. We welcome applications from across the UK, and relocation support is available for eligible candidates, subject to individual circumstances and business requirements.

The Role

Predominantly based on‑site with occasional remote working by exception. UK and International travel is expected with this role.

You will design and develop cutting edge antenna designs, lead customer queries and support the Chief RF Engineer in delivering project and product excellence, innovation and process management alongside the mentoring of junior engineers. You will use CST Microwave Studio and associated EM tools alongside Microsoft Dynamics 365 (Project Operations/Planner) to support CRM and ERP activity, scheduling, governance and dashboard reporting.

Please note this role is subject to successful completion of SC clearance prior to commencement.

Key Responsibilities

• Design and Development
• Leading Customer Queries
• Deputising for the Chief RF Engineer
• Test and Verification
• Product Assurance and Compliance
• Mentoring and Team Development
• Cross-Functional Collaboration

Key Skills & Experience

• Degree-qualified in RF, Microwave, Electronic Engineering, Physics, or a closely related discipline
• Significant industrial experience in RF and antenna engineering, with a strong track record of delivering products or technical solutions from concept through to test and verification
• Strong understanding of electromagnetic theory, antenna principles, transmission lines, impedance matching, and RF measurement techniques
• Practical experience using CST Microwave Studio or equivalent EM simulation tools for antenna modelling, optimisation, and analysis
• Hands-on experience of antenna and RF test and verification activities, including use of VNAs and antenna or chamber-based measurements
• Experience of producing clear technical documentation, reports, and design records to support reviews, verification, and product lifecycle governance
• Proven ability to respond to complex technical queries and communicate clearly with customers, suppliers, and internal stakeholders
• Experience working across cross-functional engineering teams, including mechanical, quality, manufacturing, commercial, and project functions
• Strong problem-solving skills, sound engineering judgement, and the ability to work with a high degree of autonomy
• Experience supporting or mentoring other engineers and providing technical guidance within a team environment

Why Join Us

• Ownership of genuinely interesting, technically demanding programmes
• A chance to shape how exceptional delivery is achieved, not just executing tasks
• Close partnership with senior leadership
• Working within a business with ambition, credibility and a strong team culture

We offer a competitive salary, comprehensive benefits package and the opportunity to build a rewarding career within an innovative organisation that values technical excellence, collaboration and continuous development.