Jack Walsh, the political director of President Carter reelection committee, has resigned from his full-time post with the committee, apparently because of dissatisfaction with internal operations of the campaign and his own role in shaping political strategy.

Linda Peek, the press officer of the campaign committee, confirmed yesterday that Walsh has returned to Boston, where he operates a political consulting firm. She said Walsh would still play "a major role" in the Carter campaign but will also be free to work for other political candidates.

Walsh could not be reached for comment yesterday. However, he told the Baltimore Sun earlier that "the many, many changes at the committee bothered me," that he found the Carter operation "confused internally" and that much of its political strategy was being developed outside the formal committee structure.

Walsh made no suggestion that he intends to join the presidential campaign of Sen. Edward M. Kennedy (D-Mass.) But while he will continue as a consultant to the Carter committee, it is not clear how extensive his work for the president will be.

Les Francis, the staff director of the Carter committee, said Walsh left his full-time post principally because he wanted to return to Boston, where his family lives and where he could work for candidates in other races. But Francis said Walsh "will do all sorts of troubleshooting for us, special assignments in Massachusetts and elsewhere in New England or wherever we need him."

Francis said he has had extensive talks with Walsh about his new role and has no reasons to believe that Walsh will end up working for Kennedy.

The departure of Walsh, a veteran political operative with especially good contacts in his native New England, was a blow to the Carter committee. gHe has been one of the few prominent Massachusetts Democrats working for Carter rather than Kennedy.

His departure also illustrated the organizational problems the Carter committee is still experiencing despite its early start in preparing for the 1980 race.

Since its formation earlier this year the committee has had three chairmen -- Evan Dobelle, who now concentrates on fund-raising work; former White House aide Tim Kraft, who oversees the committee's field operations, and the current chairman Robert S. Struass, the administration's former special ambassador for the Middle East peace negotiations.

In the midst of all the personnal changes, control of overall political strategy has remained firmly in the hands of the White House and long-time Carter associates such as pollster Patrick Caddell and media adviser Gerald Rafshoon.

The appointment of Strauss could change this somewhat. A powerful personality and former chairman of the Democratic National Committee, Strauss is expected to be more of a force at the committee than this predecessors.