Callender is currently national director at Race for Opportunity, where she has spent the last six years benchmarking organisations on their performance on race and diversity.
At the BBC Callender will coordinate the broadcaster's efforts across the organisation to improve on-air representation and portrayal, and the diversity of the BBC's staff. She takes up her new role on April 19.
Callender said she was looking forward to making the BBC a more diverse place and building on the progress already made on air.
Prior to joining Race for Opportunity Callender was in marketing and public relations in the public and private sectors. Most recently she has been involved in the BBC research project on understanding the multicultural audiences of the future.
Stephen Dando, director of human resources at the BBC, said: "Andrea comes with a great track record of achievement in the diversity field and her experience and passion will serve the BBC well as we look to build on the significant diversity successes of the past few years. I look forward to welcoming her to the BBC."
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