The centre is the final piece in director of rugby Brendan Venter's jigsaw for the forthcoming Aviva Premiership season as they seek to build on last year's impressive campaign.
Mordt watched the Men in Black go within minutes of winning the Premiership title, which would have been their first trophy in 12 years, before Leicester Tigers showed their big game mentality and coolness under pressure to snatch victory in their sixth successful final at Twickenham in May.
However, Mordt believes a sea-change is under-way with Sarries riding at the top of the wave.
The 26-year-old has signed a one-year deal at Vicarage Road but hopes his performances this season will warrant an extension and help him settle at a club following brief spells with Harlequins and Northampton Saints.
“It is great to be here working with Brendan again,” said Mordt, who worked under the South African at London Irish. “I enjoy the way he makes the squad closely knit and I think he gets the best out of me rugby-wise.
“I am excited about what is happening at the club and where it is going. Saracens really showed their true colours during the second half of last season and earned their place in the final. I want to settle down at a club and if I can impress at Saracens I would love to stay here for at least a couple of years.”
Asked if the Men in Black can go one step further next year by winning, and even retaining the Premiership title, Mordt replied: “Definitely. The structure is in place for that to be the case. It is just a matter of performances. The squad that Brendan has assembled is easily capable of doing that – it is unbelievably strong.
“We have got to be fighting for the championship again next season and we have also got an exciting Heineken Cup pool.”
Zimbabwe-born Mordt, nephew of Springboks legend Ray Mordt, also hopes a good season in the black and red can spark his England career into life. He has won international honours at Sevens and Saxons level and is thirsty for more.
He said: “Every player wants to play at the highest level and I would love to do the Saxons or whatever again. I am very ambitious.”