European leaders led by Angela Merkel of Germany and Nicolas Sarkozy of France will act swiftly to make the EU's reform charter a reality after Ireland's Yes vote, despite the lone resistance of Vaclav Klaus, president of the Czech Republic.

The strong endorsement of the Lisbon treaty by the Irish after eight years of divisive attempts to rewrite the EU's rule book, has sparked the jockeying for position over the plum jobs that it creates, with Tony Blair now a clear favourite to become the first permanent EU president.

The posts of president of the council and that of a new foreign policy chief with enhanced powers are among the biggest changes under the treaty. But the appointments will not be made in isolation. Who gets what will be intricately linked to the share-out of portfolios in the new European Commission, which will be strongly debated in the coming weeks.

"In the end, it will be one large package which attempts to give every member state something to boast about," said an EU official.

Fredrik Reinfeldt, the Swedish prime minister and current EU president, is already canvassing names behind the scenes, trying to engineer a consensus on who should fill the two top posts.

Blair's interest in becoming president has been Europe's worst-kept secret for more than a year. One of the great ironies of Lisbon is that it was born at a time when European leaders were vowing – following the collapse of its predecessor, the Constitutional Treaty – to create a Europe "closer to the people".

Yet its first official, permanent president of the council will be chosen in the least democratic of ways – behind closed doors by the 27 EU heads of state and government and without any of the candidates having campaigned before the court of public opinion.

"If you come out campaigning and saying you want it, that could be seen by heads of government as stepping out of line," said a UK insider. "They see it as their call. A campaign would give your opponents an opportunity to mount their own campaign against you."

So Blair has been running a non-campaign campaign for months. He has not said he wants the job, but neither has he said he does not. Friends have discreetly sounded out opinion on the diplomatic circuit on his behalf. Having reported back their qualified enthusiasm, he has allowed his hat to enter the ring without actively lobbing it in.

Headlines last week saying that Blair was in pole position to become president have been treated with suspicion by some Labour MPs who want him to get the job, as well as by some commentators.

They believe they are part of a spoiling operation by a Murdoch press which is moving ever closer to David Cameron and that sees such stories as a way to stir up opposition to the Blair candidacy.

However, the reality is that close supporters of Blair genuinely believe that he is, as one very senior figure put it, "pretty well-placed" and are now prepared to advance his case more actively. They know that few important decisions are reached in the EU, even in an expanded community of 27 member states, without a French-German seal of approval.

And British officials now feel that, following her re-election as German chancellor, Merkel can afford to enthuse about a president Blair. During her election campaign it was difficult for Merkel to hint in any way that the former British prime minister might be the best candidate. There is still deep resentment among Germany's political classes and its public at Blair's support for the Iraq war, and he is seen as having failed to stamp his pro-European mark on UK policy when prime minister.

The UK's position outside the eurozone does him no favours either in a country in which the onward march of integration is seen as a moral, as well as a political, imperative.

But with Merkel's position reinforced, Blair's supporters are confident, having taken soundings, that she will now team up with Sarkozy, the first European leader to suggest Blair would be good for the job.

One British government source said that France and Germany probably would unite behind Blair for the simple reason that he is such a "big name" and "would make Europe matter".

With German-American relations on the mend since the election of Barack Obama, Blair's transatlantic enthusiasms, his environmental interests and Middle Eastern contacts would all be key assets in the task of punching Europe's weight across the globe.

Reinfeldt wants nominations for the two jobs by the end of the month, when an EU summit in Brussels should decide on a consensus. There are even calls in Brussels for a meeting of EU leaders sooner, but this appears unlikely.

The job description is a blank page. It must go to a former or serving head of government or state in Europe and he or she will chair summits of European leaders. Strangely, what else he or she does is unclear.

Senior diplomats say it will be up to whoever gets the job to shape it. Seldom has such a prestigious and influential position been established with the detail, role, and powers left so vague.

Whoever is installed, there will be frictions with José Manuel Barroso, the European Commission president, who has just obtained a second five-year term, and with the leaders of the various countries at the helm of the six-monthly rotating EU presidency.

José Luis Rodriguez Zapatero of Spain is next in line for the Buggins-turn commission presidency in January and is not keen on being overshadowed by a president Blair.

Reinfeldt is also known to have his reservations about Blair, worried that the interests of the EU's smaller countries will receive short shrift if the new president comes from one of the EU's big four – Germany, France, Britain and Italy.

Other names in the frame are Jan-Peter Balkenende, the Christian democrat Dutch prime minister, Paavo Lipponen, the former Finnish premier, a social democrat, Felipe González, the centre-left former Spanish leader, and Jean-Claude Juncker, the veteran Luxembourg prime minister, who is a conservative.

The horse trading is complex, needing to marry jobs with candidates from north and south, big and small countries, the centre-right and the centre-left.

More immediately, all eyes in Brussels, Berlin, and Paris shifted last night from Dublin to Prague where president Vaclav Klaus now stands alone between the Irish referendum and getting the treaty up and running.

Klaus relishes the attention. He is the most Eurosceptic leader in office in the EU. He argues that Brussels is the new Moscow, the European Union a successor to the Soviet Union. He insists he will not sign off on a Lisbon treaty, which has already been ratified by the Czech parliament.

Sarkozy is fuming; Merkel is trying not to show her impatience. The only leader in Europe supporting Klaus is Cameron, who would have to stage a British referendum and kill the treaty if he entered Downing Street next year with the Czech president still blocking.

It is unlikely to come to that, although Lisbon's fate could still turn into a race against the British electoral clock.Klaus' allies in the Czech upper house have just deposited a complaint about the treaty in the constitutional court. The Czech government assured EU officials on Friday that it was aiming to get the court to rule quickly, within a matter of weeks, and pleaded with the big pro-Lisbon camp not to put pressure on the Czechs. Was Sarkozy listening?

But Klaus is highly unpredictable, a loner, and nearing the end of his career with little to lose. He thinks he is on a mission to save European democracy and the nation state.

Meanwhile, Blair is said by some to have had some reservations about the presidency post, chief among them that he would earn less money than he does now giving speeches and other private work, and that the job would involve a lot of bureaucratic grind. But he would still earn about £250,000 a year with generous EU tax allowances, have a staff of at least 20 and a splendid Brussels residence. The post would be for an initial two-and-a-half years, renewable once.

It would place him back not just at the heart of European politics but in the middle of intriguing battles involving British prime ministers past and present if, as now looks highly likely, Cameron enters Downing Street committed to wresting back power from the EU.

The path towards ever closer union

1973 Prime Minister Ted Heath takes Britain into the European Community

1975 A referendum reveals that 67.2% of voters are in favour of the United Kingdom remaining a member of the EC.

1978 The European Monetary System and the Exchange Rate Mechanism (ERM) are created.

1984 The UK under Margaret Thatcher wins its budget rebate.

1985 Jacques Delors becomes president of the European Commission

1989 The Berlin Wall collapses. The German Democratic Republic opens its borders.

1990 Britain enters the ERM

1992 The Maastricht treaty is signed turning the European Community into the European Union and paving the way for the euro.

The UK is forced out of the ERM, heaping humiliation on John Major's government

1999 Austria, Belgium, Finland, France, Germany, Ireland, Italy, Luxembourg, The Netherlands, Portugal and Spain adopt the euro as their official currency.

2004 The European Union's biggest enlargement as 10 new countries - Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, the Slovak Republic, and Slovenia – representing more than 100 million people, join.

2005 French and Dutch voters vote no to ratification of the European Constitutional Treaty.

2007 Bulgaria and Romania join the European Union, bringing the number of member states up to 27.

2008 Ireland votes no to the Lisbon treaty.

2009 Ireland votes yes to the Lisbon treaty.

October 2009? Tony Blair becomes president of the EU?