The management company behind Titanic Belfast is seeking 150 new staff, some of whom will work at an eagerly-awaited exhibition on fantasy TV drama Game Of Thrones.
This year's recruitment drive is for more than double the number of temporary jobs the organisation was aiming to fill in January 2018.
TBL International, which also runs the SS Nomadic as a tourist attraction, said a number of the new roles would cover the summer high season at Titanic Belfast.
Job areas include ticketing, hospitality and retail. The organisation already has 280 staff.
The exhibition on cult series Game Of Thrones, which is part-filmed in Northern Ireland, will make its first stop in the UK and Ireland at Titanic Quarter in April.
TBL said it would be holding a showcase day to attract the new temporary staff.
Judith Owens, chief executive of TBL International, said: "From the very beginning, we have valued our staff as one of key reasons for success.
"We are preparing for a truly blockbuster summer at Titanic Belfast following our busiest summer to date last year, as well as working with HBO Global Licensing and Retail and GES Events to bring Game Of Thrones: The Touring Exhibition to Belfast.
"We want staff who are passionate about selling two of Northern Ireland's biggest exports and have stories to tell."
The Game Of Thrones exhibition uses costumes, props and settings from the seven seasons of the show, which is made by US studio HBO.
It also aims to celebrate the Game Of Thrones legacy here.
A large number of shooting locations for the show have already become major tourist draws to fans from around the world.
These include Castle Ward in Co Down, and the Dark Hedges and Ballintoy Harbour in Co Antrim.
TBL International also runs the Titanic Exhibition Centre - now branded TEC - and the Titanic Slipways as tourist attractions.
The 6,000 sq ft TEC is described as a venue for exhibitions, trade shows and large-scale events, with space for 6,000 people.
Meanwhile, the 35,000 sq ft Titanic Slipways is marketed as a venue for outdoor events, and has already hosted the Giro d'Italia Big Start, BBC's The Biggest Weekend and MTV Titanic Sounds.
TBL was set up in 2016.
Its directors are Conal Harvey, the deputy chairman of Titanic Belfast, and Pat Doherty and his son John Paul Doherty.
Pat Doherty is the chairman of Harcourt Developments, which owns Titanic Belfast and Titanic Quarter.
Harcourt Developments also runs the Titanic Hotel at the former Drawing Offices of the Titanic shipbuilder, Harland & Wolff.