In United Arab Emirates with main requirements as below.  

15+ years of post-graduate experience in tunnel design, with a specific focus on TBM projects.

    Relevant engineering degree (Civil or similar).

    Consultancy experience is essential, with a proven track record of successful project delivery.

    Experience working on rail and tunnel projects is mandatory.

    Regional experience in the Middle East is highly desirable but not essential.

in full =https://www.railwaypeople.com/Rail-Jobs/Design-Jobs/Tunnel-Design-Lead-TBM-Middle-East/Details/642355