After law school, Nicolas became an associate attorney with Kern & Wooley LLP, an AV-rated firm working in insurance bad faith, anti-trust, aviation, products liability and other general liability matters.

Three years later Nicolas formed Adams Noblin Vrataric LLP, in Ventura, California, a law firm that focused on employment law, consumer rights, personal injury, construction defect and representation of Homeowners Associations.

In 2006 Nicolas opened The Law Offices of Nicolas C. Vrataric in Oxnard, California.  He is considered a leading Ventura County and Santa Barbara County trial lawyer.

Nicolas represents people in employment matters, including sexual harassment, wrongful termination, discrimination, defamation, wage-and-hour disputes, and meal-and-rest break matters.

Nicolas also represents people who have suffered serious personal injuries, including wrongful death, serious car and motorcycle accidents, brain injuries, spinal cord injuries, and truck accidents. He also advocates for people who have insurance bad faith issues.

Nicolas believes in vigorously representing his clients in all phases including mediation, arbitration and trial. Since graduating law school, he worked to become a well-rounded trial lawyer. 

Nicolas was admitted to the California State Bar in 2000. He also is admitted to practice before the United States District Court, Northern, Southern, Eastern and Central Districts of California.

Nicolas is a member of the California State Bar, Ventura County Trial Lawyers Association, California Employment Lawyers Association, and the National Institute of Trial Advocates.