you have a strong technical background.
so you do not need to learn the new technology from the root.
you are interested in business analysis and planning.
you have the qualification but you do not have related experience.
you can be a project manager or consultant, if you dare to take a risk.
you can pursue the similar opportunity in your current industry since you know the domain knowledge clearly as four years of experiences.
you also can pursue the other opportunity in other industry, which you are familiar.