National chain Loungers - who have cafe bars in Kettering, Corby and Wellingborough - look set to open Lago Lounge at the end of the leisure terrace at the retail park.
The unit, next to Greggs, was originally proposed to be taken on by Tex-Mex chain Chiquito.
But Loungers have now put in plans for external signs at the unit and are advertising jobs at their new branch. It is not yet known when Lago Lounge will open.
Jobs as a head chef, sous chef, chef, front of house supervisor and on the bar and waiting team can be found here. Application deadlines are later this month.
Loungers was founded by three friends in Bristol in 2002 and now has about 150 branches across the UK with quirky interiors.
In 2015 they opened the popular Kino Lounge in Market Place in Kettering, converting a building which was formerly a cinema.
In April the following year they opened Castello Lounge in Wellingborough's Market Street, replacing the closed McDonald's.
And four months later they branched out into Corby, bringing Paletto Lounge to Corporation Street.
Lago, the name of their proposed Rushden Lakes branch, translates as lake in Spanish.
Menu choices at Loungers restaurants include brunches, sandwiches, tapas dishes and burgers as well as a vegan menu.
The proposed Lago Lounge is the latest restaurant planned for Rushden Lakes, which has attracted millions of visitors since it opened in 2017.
Other restaurants that have already opened include Nando's, Wagamama and Pizza Express as well as local family-run Caribbean restaurant Blue Mountain Yard.
Loungers has been contacted for further information about their plans for Lago Lounge.