The reason competent people don't 'get the job' often isn't because they can't do it, it can be because they can't effectively articulate that they have the experience from solving similar challenges in the past.
Check out this trusted process-oriented method that will help make punchy statements about your previous experience.
Using the Star technique to shine at job interviews: a how-to guide. There are many types of interviews, from the free flowing to the formal, but one that you are likely to come up against at some point is the competency-based interview. • Situation – set the context for your story. • Task – what was required of you. • Activity – what you actually did. • Result – how well the situation played out. Used at its best, the Star structure is invisible to the listener and it simply comes across as a well-articulated example. Create a bank of answers in this format in advance, so don't struggle to do it on the day and can make it appear as seamless as possible.