When deciding on whether you want a raise or not, and by how much, it is important to factor in the bigger picture in terms of your career.
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Where are you aiming to head towards in your career trajectory?
Would this immediate next step align with your bigger career goals?
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Consider whether exposure and experience in another area may allow you to negotiate for a higher salary down the track. As part of negotiations, you could also ask your employer to provide you with exposure to another area to enhance your experience.