bids are invited for hiring of professionals for application development and maintenance - managerial roles; project manager; 15 years and above , hiring of professionals for application development and maintenance - system admin/security related roles; solution architect; 12 years and less than 15 years , hiring of professionals for application development and maintenance - development and related roles; application/software developer; 3 years and less than 6 years , hiring of professionals for application development and maintenance - development and related roles; rollout manager; 9 years and less than 12 years , hiring of professionals for application development and maintenance - development and related roles; rollout manager; 6 years and less than 9 years , hiring of professionals for application development and maintenance - development and related roles; support engineer (support envisaged or specifics to be detailed in sow); 1 year and less than 3 years , hiring of professionals for application development and maintenance - system admin/security related roles; system administrator; 3 years and less than 6 years , hiring of professionals for application development and maintenance - development and related roles; support engineer (support envisaged or specifics to be detailed in sow); 3 years and less than 6 years , hiring of professionals for application development and maintenance - managerial roles; technical lead; 12 years and less than 15 years , hiring of professionals for application development and maintenance - managerial roles; team leader; 9 years and less than 12 years , hiring of professionals for application development and maintenance - development and related roles; application/software developer; 1 year and less than 3 years