Her first television job was at the Sanning och konsekvens show on ZTV, where she met Klara Zimmergren. Skäringer and Zimmergren after that hosted the radio show Roll on together. The duo has also had their own sketch comedy show on SVT in Sweden called Mia och Klara.
The show was awarded a Kristallen award for best comedy show on television in both 2008 and 2009.
She has starred as Anna Svensson in Solsidan since 2010. Skäringer wanted to be an actress from the age of four and became active at her local theater in Kristinehamn.
Skäringer describes herself as a "small girl, quite heavy and a tom-boy" when she was younger. She related in interviews that she suffered from an eating disorder from the eighth grade until her last year in college.
During early 2009, Skäringer starred in the hit television show Solsidan along with Felix Herngren, Johan Rheborg and Josephine Bornebusch.
Skäringer stated that she and Herngren had never met before "but found each other from the start and co-operated like a team which doesn"t happen very often in comedy". The first episode of Solsidan was watched by 1.8 million viewers and was broadcast by TV4 making it the most-watched programme of the day in Sweden. And in March 2010 a second season was announced, which premiered in January 2011.
Many other known names in comedy asked to be in it after the success of the first season.
In 1997, Skäringer appeared on the radio program Bossanova on Swedish radio P3 along with Klara Zimmergren. They also joined the radio programme Frank and Sommarsalva and their own radio programme Roll on.
The final episode was broadcast in January 2007. After that, the duo started working on their first comedy show on television, later named Mia & Klara.
lieutenant was viewed by 610,000 viewers in its premiere episode.
The programme continued, as season 2 of Mia & Klara was viewed by more than a million viewers on average for each episode.