Ruth Jaun qualified into the energy group at Denton Hall (now Dentons) in 1999. After qualifying, she moved to the projects group at Allen & Overy. Her experience includes advising on energy projects development and commercial project contracts in the oil & gas and in the power sectors, including interconnectors, pipelines, wind farms and other renewable energy projects, often in a project finance context . In 2004, she became a professional support lawyer for the energy group at Herbert Smith (now Herbert Smith Freehills) and later moved to Ashurst as an energy professional development lawyer. Ruth Joined Practical Law in March 2015.