Principal RF Engineer

Our client is seeking a Principal RF Engineer to join their engineering team in County Durham, UK. The role involves working on cutting‑edge RF and millimetre‑wave products, from initial concept through to full production, within a state‑of‑the‑art facility.

Major Responsibilities

• Lead the design and development of RF/mmWave circuits, subsystems, and systems
• Take ownership of RF specifications, simulation, realization, and validation
• Provide technical leadership and mentoring to engineering teams
• Conduct system line‑up and tolerance analysis, ensuring design for manufacture
• Support component and MMIC selection, liaising with suppliers where required
• Collaborate closely with mechanical, electronics, PCB, manufacturing, and test teams
• Produce and review technical documentation, including design records and release data
• Lead design reviews, identifying and mitigating technical risks
• Support verification, validation, and reliability testing activities
• Troubleshoot and resolve technical issues during development and production
• Deliver designs in line with project timelines, cost targets, and technical requirements

Required Qualifications

• Degree (or equivalent) in RF, Microwave, Electronics, or Communications Engineering
• Significant experience in RF/mmWave circuit or system design
• Strong proficiency with RF design tools such as ADS, CST, Microwave Office, or EMPro
• Solid understanding of microwave circuit design, system analysis, and design for manufacture
• Experience with transceivers, amplifiers, filters, or subsystem design is advantageous
• Proven ability to lead technical activities and mentor engineers
• Strong problem‑solving skills with a practical engineering approach
• Excellent communication skills and ability to work across cross‑functional teams

Benefits

• Private medical insurance
• Save As You Earn share scheme (£500 invested over 2 years at a discounted rate, held for 3 years)
• Pension scheme with up to 8% employer contribution (plus 2% match structure)
• Electric vehicle scheme (salary sacrifice)
• Cycle to work programme
• 15 days annual leave plus bank holidays, with option to purchase 5 extra days
• 4× life assurance and income protection

Relocation Support

• UK: Up to £5,000
• International: Up to £8,000 (covers relocation expenses such as removals, transport, and up to 3 months of temporary accommodation – excludes furniture/appliances)

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