Hayk Barseghyan concentrated his professional abilities and experience in the human rights staff of the RA, ensuring the protection of the violated rights of people by the state and local self-government bodies.
In the private sector, as an advocate, he provided legal services to large local and non-local companies providing cargo transportation, construction, supply, credit, insurance and other services.
In the field of advocacy, he carried out settlement of disputes related to RA labor law, Civil law particularly  inheritance, supply, obligations,  supply etc.