Later that same year, she was hired as a business manager by De Beers Prospecting. She was part of the De Beers pre-feasibility studies team at present-day Karowe Mine. In 2007, she was appointed as the first female finance manager at Orapa, Letlhakane and Damtshaa Mines. In 2010, Lynette resigned from De Beers and took up employment at Tati Nickel Mine. Later, she returned to BCL Mine as the divisional manager for finance and administration, working in that capacity for one year.
