Certification Engineer (Aircraft Modification, Part 21, DOA)


Permanent, F/T

2Excel Aviation Ltd is an industry leader in specialised and innovative solutions for aviation’s most complex challenges. Our success is based on the talented and experienced people that make up our workforce.

We are seeking experienced Certification Engineers to join our growing Capability Development team in delivering significant aircraft conversion programmes. This role will be working within our UK CAA Part 21J Design Organisation on aircraft and mission system modification programmes.

We are looking for candidates across all disciplines who have the following skills, experience and attributes:


  • Detailed knowledge of aircraft modification certification.
  • Knowledge of EASA/UK Part 21, CS/FAR 23 and 25.
  • Proficient in the generation of:
    • Design change classification, description and proposal of classification;
    • Certification Programme, identification of certification basis, changed and affected areas, proposal of Compliance Demonstration Items (CDI) and Level of Involvement (LOI);
    • Compliance Checklist, identification of applicable requirements and population of proposed Means of Compliance (MoC) and compliance summaries; and
    • Other compliance documents e.g. test plans.
  • Experience of certification of complex projects on aircraft under civil or military airworthiness regulation.


  • It would be desirable to have experience working on King Air, Piper PA-31, 727, 757 aircraft.
  • Previous experience as a Compliance Verification Engineer (CVE)
  • Knowledge of DAOS.
  • Knowledge of AS9100.

This role will require candidates to work from our main site in Doncaster, a hybrid working model may be considered.

Applicants must be able to demonstrate the Right to Work in the UK and hold a valid UK Driving Licence. It is desirable that applicants are able to hold a UK Security Clearance.

In return we can offer you a competitive salary dependant on previous experience, generous holiday allowance, private health care, salary sacrifice electric car scheme and a company pension. In addition, you will become an Employee Owner as part of our Employee Ownership Trust (EOT).

Applications by way of CV and cover letter, noting your salary expectations and current notice period. to recruitment@2excel.uk.

2Excel is committed to promoting equitable treatment, encouraging diversity and embracing inclusion in our recruitment processes and among our workforce.  We are proud to be recognised as a Disability Confident Employer.