Social service professionals work in government departments, NGOs, community organisations, international agencies and social enterprises. They plan and run programs in health, education, water & sanitation, environment, livelihoods, gender & youth empowerment and social innovation. Roles range from frontline workers and social workers to program managers, policy experts and researchers. Growth comes through experience, higher qualifications (MPH, MSW, MBA/PGDM), and field track records — skilled practitioners are in demand by state programmes, multilateral agencies and large NGOs. (Examples: NHM hires CHOs; state education departments hire teachers; UNICEF, WHO and large NGOs run WASH & livelihoods projects.)