Excel Macro Guru-- small job

I’m seeking a seasoned Excel macro expert with an efficient approach to task automation specifically for performing calculations. Key Requirements: - Expert-developed Excel macros that automate repetitive tasks, making my workload more manageable. - The macros created should focus on performing calculations, thus, speed and precision are of the essence. - Due to the nature of the project, potential contractors must understand Excel inside out, especially on how to configure and troubleshoot macros. No specific type of calculation was specified, therefore experience with a wide range of calculations from basic arithmetic to complex equations is integral. Your problem-solving skill will be a plus point as the ability to understand and improve current systems is instrumental in achieving an efficient automated process.