Please guide me 🥹

I'm a full stack developer with 2 years of experience at a small startup, working primarily with Node.js, Express, TypeScript, GraphQL, Svelte, Vue, and PostgreSQL. I'm considering switching to a larger PBC company and have some time to prepare, but I'm conflicted about where to start. Should I focus on learning Docker, cloud technologies, or DSA? I previously did DSA in Java—can I continue with Java, or should I switch languages?