Tomas began his career in the Bazaruto Archipelago National Park in 1999, first as a boat skipper, and later as a Community Extension Officer. After completing Ranger Training in Mozambique’s Gorongasa National Park, Tomas was recruited as Bazaruto’s Assistant Head of Law Enforcement. Tomas underwent training at the Southern African Wildlife College in 2012, was promoted to Head of Law Enforcement in 2013, and qualified in Advanced Nature Conservation Management in 2014. In 2016, Tomas provided training to Rangers of the Quirimbas National Park, and in 2017- won a WWF recognition award for his dedication to biodiversity conservation in Mozambique. Before joining African Parks, Tomas supervised the Park’s 22 Rangers and cordinated marine and terrestrial law enforcement.