The firm, which sources staff for businesses from more than 200 recruitment offices across the UK, is thought to be spending £100,000 on the activity.
Manchester digital agency Code will handle the work, after winning a three-way pitch.
The site, which will go live in the New Year, will replace the existing online presence (www.bluearrow.co.uk) with a new creative design, additional content and functionality.
Its focus will be Blue Arrow's main audience of 20- to 30-year-olds seeking temporary and permanent jobs in local businesses and blue-chips.
The site will also cater for clients, shareholders and Blue Arrow's own network of recruitment consultants.
Tony Foggett, director of Code, said: "What differentiates Blue Arrow is the size of its branch network and the personalised service its consultants can provide. We aim to capitalise on this through the online offer."
Separately, Code has hired Mark Sharp, a new-media producer at creative agency Madhouse, to be a project manager on its activity for FMCG giant Kimberly-Clark.