Date posted: 09 Dec 2021

Aerospace and defence equipment wouldn’t be able to operate if it wasn’t for avionic manufacturers like Chelton. We pride ourselves on working with customers and being attuned to industry trends to expand the possibilities of aerospace and defence and give our customers a helping hand in achieving mission success. Working in challenging environments, producing failsafe technology with smart thinking – it’s just what we do. But we couldn’t do it without the Chelton A-team.

That’s why we're on the look out for a Power Sub System Engineer to join our team. 

This role will be part of the NATO JEWCS team working closely with Project and Program Managers to design and deliver operational readiness EW pods.

This position is based at our Marlow site with some flexibility for remote working. 


  • Experience in design & development lifecycle from concept and requirements
  • Experience in calculating power budget and capacity requirements
  • Knowledge of DC and 3-phase power on aerospace platforms
  • Experience of selecting cables (RF, power, signal) for use in harsh environments
  • Experience with military style connectors (selecting contact inserts, shells, backshells)
  • Worked within the aviation industry
  • Working knowledge of requirement capture and requirement management


  • Experience of systems involving high power RF circuitry (Solid State Power Amplifiers, Travelling Wave Tubes)
  • Experience designing to meet EMC/EMI performance requirements – elctro magnetic design / apability
  • Experience liaising with and managing subcontractors/suppliers
  • Experience of working with platform integration and design certification engineers and an EASA 21J / DAOS Design Organization - standards
  • Working within a quality management system such as ISO9001.
  • Experience working on large programs


  • Competitive salary
  • 25 days holiday, plus bank holidays, with the opportunity to buy and sell leave
  • Flexible benefits scheme including private medical insurance and cycle to work scheme
  • Pension contribution matched up to 8%
  • Employee Assistance Programme 

Securing success in some of the world’s most demanding environments isn’t just down to Chelton’s failsafe, pioneering technology. From aerospace and defence communications through to navigation and electronic warfare, it’s all driven by the people behind it.

No two days are ever the same at Chelton, you’ll constantly be faced with new challenges to overcome. From the very beginning, you will be able to take full ownership and accountability to see products through to success. After all, where would we be if it wasn’t for the people behind the products?

If you’re looking to leave your mark on the world, why not choose the exhilarating world of aerospace and defence and better yet, join Chelton for your chance to innovate, create and excite.