Jakob Malmo was a partner who helped develop an 11 veterinarian practice in the Macalister Irrigation Area of Victoria. He continues to work full-time as a cattle specialist in the practice. He is also Principal of the University of Melbourne Rural Veterinary Unit at Maffra. He provides lectures in cattle medicine and production to students at the University of Melbourne Faculty of Veterinary Science during the last 2 years of their course. He is a Fellow of the Australian College of Veterinary Scientists in the area of Dairy Cattle Management and Disease and is a Veterinary Board Registered Specialist in Veterinary Medicine - Cattle medicine.

His areas of special interest include individual animal cattle medicine, dairy cattle reproduction, mastitis control programs, lameness and dairy cattle production. A textbook of which he is a co-author (Cattle Diseases in Australasia) is now in the prepublication phase. He owns and manages two dairy farms, between them milking in excess of 1100 cows.

He has been an invited speaker at veterinary meetings and conferences in Australia, New Zealand, South Africa, Holland and Canada and has undertaken several short term consultancies in Asia. He has served as president of the Australian Veterinary Association and President of the Australian College of Veterinary Scientists. He also served a term as an inaugural director of the Australian Animal Health Council and has served as chairman of the National Herd Improvement Association of Australia.

He was been awarded the T. G. Hungerford Award for Excellence in Postgraduate Education in 1988 and in 1994 was awarded the honour of Officer of the Order of Australia for services to the veterinary profession, veterinary education and the dairy industry. He has also been awarded D. V. Sc. (honoris causa) by the University of Melbourne and has received the Gilruth Prize - the highest award of the Australian Veterinary Association.