Hiring a GNU Octave developer can significantly optimize your numerical computations. Octave, being a high-level language primarily intended for numerical computations, provides capabilities for numerical solutions of linear and nonlinear problems, and for performing other numerical experiments. A qualified Octave developer can write clean, efficient code for complex mathematical models, data analysis, or algorithm development. They can also leverage Octave's extensive toolset and compatibility with MATLAB to improve productivity and performance. This can be invaluable in domains like machine learning, finance, and engineering that heavily rely on mathematical computations.