Vainer (Weiner) (née Leibina) Liya (Lija) Zelmanovna (9 November 1918, Fergana) — technologist.

In 1938, Liya Vainer graduated from the Moscow Road Transport Technical College affiliated with the Stalin Moscow Automobile Plant, qualifying as a technician-technologist. From 1938 to 1941, she worked as a design engineer in the same plant’s design department. Between 1942 and 1943, she was a technologist in the Production and Technical Department of the Chelyabinsk Forge and Press Plant. In 1944, Vainer returned to Moscow and resumed her work at the Stalin Automobile Plant as a design engineer until 1945.

After a break in her professional activity, she was employed in 1952 as a technologist at the Mikoyan Melitopol Diesel Plant, and from 1954 to 1955 served as head of the plant's technical archive. In the 1950s, Vainer and her family relocated to Riga. From 1956 to 1974, she worked as a technologist in the chief design department at the Riga Diesel Building Plant. From 1974, she was retired.

Liya Vainer was awarded the “Veteran of Labour” medal.

In 1978, Liya Vainer and her husband, Mikhail-Emmanuil Vainer (b. 1911), applied for permission to emigrate to Israel to join their daughter, Natalya Pereplyotchikova (née Vainer) (b. 1945), who had moved there earlier.

Family:

Mikhail-Emmanuil Vainer (b. 1911) — husband
Natalya Pereplyotchikova (née Vayner) (b. 1945) — daughter
Zelman Leibin (1880–1922) — father
Matvey Leibin (b. 1908) — brother
Abram Leibin (1911–1965) — brother
Ruv Leibin (b. 1912) — brother
Sofya Leibina (née Kuzminova) (1887–1973) — mother