"The change will affect about 30 people in the next several months," Omnitel spokeswoman Daiva Selickaitė told BNS.
Omnitel will help the employees being made redundant to plan their future careers and will develop an individual job search plan, she added.
TeliaSonera is revamping its Mobile Technological Solutions unit in the Nordic and Baltic countries and is cutting jobs in all offices of the unit, including the Lithuanian one, in an effort to improve efficiency, Selickaitė said.
TeliaSonera said last October that the group aimed to reduce its costs by 2 billion Swedish kronor (EUR 240m).
Omnitel employed a workforce of around 600 last year. TeliaSonera has said that it will lay off 1,800 employees in the Nordic and Baltic countries in 2013.