Robinson told Mortgage Solutions that he did not have anything lined-up at present and was looking out for new opportunities after a break over the summer.
Robinson joined in August 2018 having left Accord Mortgages earlier in the summer after 29 years at its parent company Yorkshire Building Society.
Shawbrook has restructured its business over the last year, combining the residential and commercial mortgages teams into one entity.
As a result, former managing director of residential mortgages Jeremy Law departed the lender in April, with John Eastgate, who joined as managing director of commercial mortgages in January, taking over the whole property division.
Shawbrook said Robinson had played an important role in building and evolving its proposition, including the re-vamping the second charge mortgage offering.
It added that he has taken the decision to leave the business to pursue new endeavours.
Pursuing a new role
In a statement from the lender, Robinson said: “I feel extremely lucky to have been a part of this journey and am hugely proud of the work we have done in the secured lending space.
“Following the restructure, it felt like a good time to part ways with Shawbrook and I am grateful to them for being supportive of this decision.
“I will be taking some time off, before pursuing a new role in the lending space,” he added.
Shawbrook property division managing director John Eastgate added: “I’d like to thank David for the important contribution he has made, and we wish him well for the future.
“His professionalism has been a great asset to the bank and I’m sure his knowledge and experience will be put to good use in his next role”.