Career
His greatest success came with the New York Cosmos in the NASL. Birkenmeier began his career in West Germany. In 1970, he signed with Freiburger Football Club before moving to Tennis Borussia Berlin in 1972. He remained in Berlin until 1977 when the New York Cosmos of the North American Soccer League purchased his contract. when he was bought by the Cosmos.
At the time he could not speak English.
Birkenmeier remained with the Cosmos until 1985. During those years, he played eight outdoor NASL, two indoor NASL and one Major Indoor Soccer League season.
In 1985, he also played several exhibition games for the Cosmos. During those years, Birkenmeier was a 1982 and 1984 First Team NASL All Star.
In August 1985, he signed with the Chicago Sting of the MISL. He spent most of the season as a backup for Victor Nogueira.
The Sting waived him on 29 April 1986. On 4 November 1986, Birkenmeier signed with the expansion New York Express of the MISL. The Express folded two-thirds of the way through the season and on 6 March 1987, the Los Angeles Lazers signed him to a ten-day contract. He then played for the Cosmopolitan Eagles during the 1987 outdoor exhibition season.
In 1988, he played for the New York Pancyprian-Freedoms of the Cosmopolitan Soccer League as it went to the semifinals of the National Challenge Cup.
He returned signed with the New York Eagles of the American Soccer League. He remained with them through the 1990 season in the American Professional Soccer League.
Birkenmeier now manages a sporting goods store called Birkenmeier Sport Shop in Hackensack, New Jersey. The store was founded and originally owned by Birkenmeier but was sold in 1985 to his former Cosmos teammate Andranik Eskandarian when Birkenmeier left to play for the Chicago Sting.
The teammates helped teach Eksandarian"s son, Alecko, how to play inside the store.
He also is now a goalkeeping coach for World Class Football Club
On a visit back to his hometown of Hartheim in 2009 to celebrate his 60th Birthday, he described initially having mixed feelings about leaving Germany to play in the United States. He stated that in his first few months as a Cosmo, he lived in a hotel and had some difficulty with both homesickness and the learning of a new language. However, he credits his teammate and fellow countryman, Franz Beckenbauer with helping him adjust quickly to his new home, team and language, helping him to become one of the team"s most dependable and popular players while sharing in two NASL Championships.
Birkenmeier continues to manage the sporting goods store he founded but stays involved in the sport acting as goalkeeping coach with the United States. Youth National Team.
He also runs a soccer youth camp for seven weeks each summer in Northern New Jersey.