Following a B.Sc. from the LSE, Haider worked in publishing before freelancing as a small business trainer, during this time he also completed his M.Phil at the Cranfield School of Management and a Ph.D. at Imperial College. Both pieces of research focused on start-up businesses. Haider then taught on the M.Sc. programmes at Cranfield before moving to the Open University in 1999.
Haider has undertaken consulting, training and teaching work in a range of countries including, India, Kazakhstan, Hong Kong, Singapore, Malaysia and Indonesia. He has undertaken work for Open University Validation Services in the UK, Greece and various countries in the middle east.
Since 2002 Haider's research has focused on social marketing. He has carried out a series of evaluation projects related to smoking and the training of health service staff. Recent work has focused on social marketing programmes for cardiac patients and members of their social networks. His work on social networks draws on the literature in health, management and entrepreneurship. Amongst other journals his work has been published in the Journal of Marketing Management. He contributes to OpenLearn. He has successfully bid for funding from organisations such as the British Heart Foundation, QUIT (a national smoking cessation charity) and has also contributed to a research project funded by Communities and Local Government.
Haider has contributed to courses ranging from the commercially successful Certificate in Accounting (B680) programme to the Certificate in Management (B629) course and the marketing and entrepreneurship electives on the current MBA programme. He co-authored the marketing material on the undergraduate module B203. He has also collaborated with the Arts faculty's production of LB160, Professional Communication Skills for Business Studies.