"It's always been an ambition of mine to coach in the NRL and the chance to work with the Reebok Female Shoes
"We have made considerable progress internationally over the past four years and this arrangement provides stability and continuity.
"It also allows Steve and the England coaching staff to continue working towards our goal of achieving the international success we so narrowly missed out on in Rugby League World Cup 2013.
"I am going to miss rubbing shoulders with the fantastic RFL staff that I have been privileged to work with over the last four years: I'm indebted to Saucony Low Pro Womens
The RFL has confirmed McNamara, who has been in charge of the national team since 2010, will continue on a part time basis while working alongside former Catalan Dragons coach Trent Robinson at the Roosters, current National Rugby League champions.
"Steve can also realise his own desire to return to club coaching and I am sure his involvement with Sydney Roosters will have a positive impact on his own career development."
RFL chief executive Nigel Wood said: "It gives me great pleasure to confirm that Steve has agreed to continue as England coach into 2014 when we will be looking to build on the advances seen over the last four years.
Outstanding group"I would like to thank the RFL Board of Directors for giving me this opportunity to carry on working with an outstanding group of players who I firmly believe are on the verge of achieving sustained success," said McNamara.
them for their friendship and support.
"I have known Steve for a long time and he will do a great job rounding out our team alongside Jason Taylor and Craig Fitzgibbon.
"It gives me great pleasure to confirm that Steve has agreed to continue as England coach into 2014 when we will be looking to build on the advances seen over the last four years."
"The systems and structures that have been put in place during Steve's tenure as England coach have put Rugby League in this country in a good place and this move will ensure that we continue to make progress.
Sydney Roosters head coach Trent Robinson said: "I have a lot of respect for the work Steve has put in to developing England's players and squad and I'm pleased to have him joining our staff.
NRL champions is something that doesn't come along very often.
Training Squad players, following my move to Australia
"Steve is a coach with huge integrity and I'm looking forward to him applying his knowledge and contributing to our development at the Sydney Roosters in 2014."
Steve McNamara to stay on as England head coach
England's next scheduled games will take place in the Four Nations in Australia and New Zealand in the autumn of 2014, when McNamara believes both he and the national team will be perfectly prepared.
"I have a great team around me within the England camp Saucony Us and the RFL Performance Department and I will be maintaining regular contact with them all, as well as all the Elite Saucony For Men
"I have a great relationship with Trent Robinson and am looking forward to working alongside him and the rest of the Roosters staff in what is a very exciting chapter in my career."
Steve McNamara will remain in charge of the England team, combining the role with his new job as assistant coach at Sydney Roosters.