Antrim health tests firm Randox Laboratories is set to hire 100 more staff this summer on the back of a five-fold leap in profits.
The Crumlin-based company had one of its most successful years on record in 2013, with pre-tax profits up from £2.5m to £12.9m.
Randox said the boost in turnover reflected investment in research and developments, new products and markets, "and the efforts of around 1,300 hardworking staff around the world".
Over 200 new staff have been recruited so far in 2014 and 60 of the latest tranche of employees have already started work, with a further 50 set to be in place by September.
The new roles will include engineers, biomedical scientists, business and marketing specialists, physicists, mathematicians, IT specialists and logisticians.
Company founder Dr Peter Fitzgerald said that Randox's share of the global market is steadily rising.
The firm manufactures 8% of all clinical chemical tests globally, with around 350m patients diagnosed using Randox technology each year.
"Within this context we need high quality graduates to help us expand our business further," Dr Fitzgerald said. But he said staff needs were not limited to science or business.
"We also have roles, for example, for environmental and agricultural specialists, facility managers and linguists.
"We are looking for a wide range of highly motivated individuals who wish to succeed in a truly international business.
"Our success means we are able to invest further in our global manufacturing, engineering and research and development facilities, as well as new offices in Durban, Dubai and Hong Kong."
In 2013 the firm bought the former Massereene army barracks in Antrim. This year it bought the assets and order book of Manchester-based Trimega Laboratories, which specialises in hi-tech hair testing apparatus.
Sales at Randox, the UK's largest homegrown diagnostics company, increased by £18.7m during the year and around £8m was spent on research and development.
But future risks mentioned in the latest company report include the level of demand for the group's products, the exhange rate between sterling and euro and the consequence of the group's raw materials and the availability of bank finance.
The new Randox jobs come as defibrillator manufacturer HeartSine announced 40 new jobs in Belfast.
e 2013 has been a highly successfull year for Randox, which employs 1,300 people and will next week embark on a search for another 100 staff.
e The company makes medical diagnostic kits – including the Confidante kit for sexual health, which has been widely advertised on television.
e The firm manufactures 8% of all clinical chemical tests sold globally.