As a violinist he toured extensively in Central Europe, prior to taking his own orchestra to India in 1934. For the next eight years he appeared as director of the orchestra and as soloist in important concert and radio work in the Far East.
In 1946, following 3 years of internment during World War II, he took up residence in Sydney, Australia. As a leader of the Musica Viva Chamber Music Players, he became engaged in a continuous schedule of ensemble and solo concert work throughout Australia and New Zealand.
In 1952 he accepted the invitation from Sir Eugene Goossens to become the principal viola of the Sydney Symphony Orchestra, a position he filled with great distinction for 14 years. Meanwhile, chamber music occupied much of his time outside orchestral duties.
In 1962 he spent four months overseas, during which time he visited the United States, England, France, Holland, Italy, Switzerland, Hungary and Austria.
Leaving the Sydney Symphony Orchestra in 1966, he became Artistic Director and viola player for the Sydney String Quartet. At the same time he began teaching at the New South Wales Conservatorium of Music.
In 1966 Robert Pikler left the Sydney String Quartet and formed and conducted his own chamber orchestra. This was the first Australian ensemble to undertake a tour of South East Asia on behalf of the Department of Foreign Affairs.
During the latter half of 1972 the Sydney Conservatorium Chamber Orchestra was founded under his direction.
Pikler received the Brittanica Award of $10,000 in 1972 for his services to Australian music and in 1974 was appointed an Officer of the Order of the British Empire (OBE).
He died in 1984, shortly before turning 75.