Senior / Principal Microwave Filter Design Engineer in Leeds
Senior / Principal Microwave Filter Design Engineer

Senior / Principal Microwave Filter Design Engineer in Leeds

Leeds Full-Time 55000 - 75000 ÂŁ / year (est.) No home office possible
Castle Employment

At a Glance

  • Tasks: Design cutting-edge RF and microwave filters for next-gen connectivity.
  • Company: Leading engineering firm at the forefront of RF technology.
  • Benefits: Competitive salary, generous leave, pension scheme, and ongoing development support.
  • Why this job: Make a real impact on mission-critical systems in defence, aerospace, and telecoms.
  • Qualifications: Proven experience in RF/microwave filter design and hands-on engineering skills.
  • Other info: Join a dynamic team with excellent career growth and mentoring opportunities.

The predicted salary is between 55000 - 75000 ÂŁ per year.

Design the filters that power next-generation connectivity. If you are an experienced Microwave Filter Design Engineer looking to work on genuinely complex, high-performance RF technology, this is an opportunity to step into an environment where engineering excellence is at the centre of everything. This role sits within a highly specialised engineering business operating at the forefront of RF, microwave and mmWave technology. Their work supports critical communication systems across defence, aerospace, space and advanced telecoms.

You will take ownership of sophisticated filter designs that move from concept through to production, working on projects where precision, reliability and performance are non‑negotiable.

What makes this role different?

  • Work on mission‑critical RF and microwave systems used in real‑world, high‑reliability environments
  • Be part of a team that values deep technical expertise and hands‑on engineering
  • Take ownership of end‑to‑end filter design, not just analysis
  • Contribute to next‑generation product development and innovation
  • Collaborate with experienced engineers in a business known for engineering credibility and technical excellence

What you will be doing

  • Take full responsibility for the design and development of RF and microwave filters and subsystems
  • Deliver designs from concept through simulation, prototyping, validation and release
  • Carry out filter simulation, optimisation and tolerance analysis
  • Lead or contribute to new product introduction activities, ensuring designs are production‑ready
  • Conduct hands‑on tuning, testing and validation using lab equipment including VNAs
  • Produce and maintain high‑quality technical documentation and design packs
  • Support customer interaction during technical discussions and project delivery
  • Contribute to R&D activities focused on next‑generation filter technologies

What we are looking for

This is a specialist role. We are specifically seeking engineers with proven experience in RF and microwave filter design.

  • Strong experience designing RF / microwave filters such as:
  • Cavity filters
  • Waveguide filters
  • Dielectric or ceramic filters
  • Duplexers or multiplexers
  • Hands‑on experience across the full design lifecycle, including:
    • Simulation and modelling using tools such as Microwave Office, CST, ADS or HFSS
    • Working with S‑parameters, insertion loss and return loss
    • Practical tuning, optimisation and validation
    • Laboratory experience including VNA testing and filter tuning
  • Experience working in a manufacturing or production‑led environment such as:
    • RF or microwave component manufacturing
    • Defence, aerospace, space or telecoms
    • Involvement in taking designs into production, including NPI processes
  • Ability to operate at Senior or Principal Engineer level, with ownership of designs and contribution to project delivery
  • What will set you apart

    • Experience working on passive RF components and high‑reliability systems
    • Background in RF subsystem or component‑focused organisations
    • Experience mentoring engineers or leading technical workstreams

    Eligibility requirements

    • Have the right to work in the UK without restriction
    • Be able to meet UK Security Clearance requirements, including a minimum of 5 years continuous UK residency

    Salary and benefits

    • ÂŁ55,000 to ÂŁ75,000 depending on experience and level
    • 25 days annual leave plus bank holidays
    • Option to purchase up to 5 additional days leave
    • Pension scheme with employer contribution up to 8%
    • Ongoing learning and development support
    • Paid volunteer time
    • Employee Assistance Programme to support wellbeing
    • Enhanced parental leave support

    Senior / Principal Microwave Filter Design Engineer in Leeds employer: Castle Employment

    Join a pioneering engineering firm that places a strong emphasis on innovation and technical excellence in the RF and microwave technology sector. With a collaborative work culture that encourages hands-on engineering and deep technical expertise, employees benefit from extensive professional development opportunities and a supportive environment that values their contributions. Located in the UK, this role offers competitive salaries, generous leave policies, and a commitment to employee wellbeing, making it an ideal place for engineers seeking meaningful and rewarding careers.
    Castle Employment

    Contact Detail:

    Castle Employment Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Senior / Principal Microwave Filter Design Engineer in Leeds

    ✨Tip Number 1

    Network like a pro! Reach out to your connections in the RF and microwave industry. Attend relevant events or webinars, and don’t be shy about introducing yourself. You never know who might have the inside scoop on job openings!

    ✨Tip Number 2

    Show off your skills! Create a portfolio showcasing your best filter designs and projects. This is your chance to demonstrate your hands-on experience and technical expertise. Make sure to highlight any innovative solutions you've developed!

    ✨Tip Number 3

    Prepare for interviews by brushing up on your technical knowledge. Be ready to discuss your design process and how you tackle challenges in RF and microwave filter design. Practice common interview questions with a friend to boost your confidence!

    ✨Tip Number 4

    Don’t forget to apply through our website! We’re always on the lookout for talented engineers like you. Keep an eye on our job listings and make sure your application stands out by tailoring it to the specific role you're interested in.

    We think you need these skills to ace Senior / Principal Microwave Filter Design Engineer in Leeds

    Microwave Filter Design
    RF Technology
    Simulation and Modelling
    Microwave Office
    CST
    ADS
    HFSS
    S-parameters
    Insertion Loss
    Return Loss
    VNA Testing
    Filter Tuning
    New Product Introduction (NPI)
    Technical Documentation
    Hands-on Engineering

    Some tips for your application 🫡

    Tailor Your CV: Make sure your CV reflects the specific skills and experiences mentioned in the job description. Highlight your expertise in RF and microwave filter design, and don’t forget to showcase any hands-on experience you have with lab equipment like VNAs.

    Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about working on next-generation connectivity and how your background aligns with our mission. Be sure to mention any relevant projects you've worked on that demonstrate your technical prowess.

    Showcase Your Technical Skills: When filling out your application, be specific about the tools and methodologies you’ve used in your previous roles. Mention software like Microwave Office or CST, and detail your experience with simulation and modelling to show us you’re the right fit for the role.

    Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates regarding your application status. Plus, we love seeing applications come in through our own platform!

    How to prepare for a job interview at Castle Employment

    ✨Know Your Filters Inside Out

    Make sure you brush up on your knowledge of RF and microwave filter design. Be prepared to discuss specific types of filters you've worked on, like cavity or waveguide filters, and how you've tackled challenges in their design and production.

    ✨Show Off Your Hands-On Experience

    Since this role requires practical skills, be ready to share examples of your hands-on experience with lab equipment, especially VNAs. Talk about how you've conducted tuning, testing, and validation in previous projects to demonstrate your technical prowess.

    ✨Demonstrate Your Design Lifecycle Knowledge

    Highlight your familiarity with the full design lifecycle, from simulation to production. Discuss the tools you’ve used, like Microwave Office or CST, and how you’ve contributed to new product introductions to show you can take ownership of designs.

    ✨Prepare for Technical Discussions

    Expect to engage in technical discussions during the interview. Brush up on key concepts like S-parameters, insertion loss, and return loss. Being able to articulate these topics clearly will show your depth of knowledge and confidence in your field.

    Senior / Principal Microwave Filter Design Engineer in Leeds
    Castle Employment
    Location: Leeds

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