He has recorded eight solo albums since 2002, having also backed Junior Watson, Anson Funderburgh and Elvin Bishop. He has opened for Robert Cray, Keb" Mo", and Earl Thomas. Allmusic noted that he is a "vocalist with great range, ability, and soulfulness, Németh had also developed into a top-notch blues harmonica player.." In 2013 alone, he was nominated five times for a Blues Music Award, making nine such nominations in total.
He toured and performed regularly working between five and seven nights a week for almost a decade.
By 2000, Németh was supplying backing to Junior Watson, and separately fronting his own band known as The Jacks. In 2002, he self-published the album, The Jack of Harps.
His debut solo effort, Come and Get lieutenant, followed in 2004. The same year, Németh relocated to Oakland, California.
Gaining more experience, he temporarily replaced Sam Myers in Anson Funderburgh"s backing band in 2005 and 2006.
In 2006, he signed a recording contract with Blind Pig Records. Magic Touch, which was produced by Funderburgh and had Watson as a guest musician on several tracks, was issued in 2007. Living Blues stated "Magic Touch gives hope that the blues will survive." The release saw Németh nominated for a Blues Music Award in the "Best New Artist Debut" category.
Németh performed at the Blue Bear Live III concert on May 9, 2008 at the Great American Music Hall, to benefit the Blue Bear School of Music.
Németh"s next release, Love Maine Tonight (2009), reached number 6 in the Billboard Top Blues Albums Chart. Németh"s fourth solo release, Name the Day!, was released in 2010.
Blues Live was recorded in February 2012 at three venues in the San Francisco Bay Area, and included guitar contributions from Kid Andersen. Soul Live was released in September 2012.
In December 2012, Németh appeared at the PowerHouse Public in Folsom, California.
The following February, he performed in his home town of Boise. In 2013, Németh was nominated in five categories for a Blues Music Award. These included "B.B. King Entertainer", "Contemporary Blues Album", "Instrumentalist - Harmonica", "Soul Blues Album", and "Soul Blues Male Artist".
Németh is due to perform at the Great Lakes Blues Society in April.
The Simi Valley Cajun & Blues Music Festival in May. And the Jackson Rhythm and Blues Festival in August 2013.
He relocated to Memphis, Tennessee in early 2013, and has stated that the Bo-Keys will back him on his next recording.