Backend Software Engineer with Java

I'm a software engineer with 5+ years of experience. My expertise is in building robust, secure and scalable backend services in Java using Spring Boot. My primary domain of work is Algorithmic Trading in stock markets. Lately, to me, Tech doesn't feel as interesting as if was just after graduation, so am looking to change tech stack and to learn and work in newer languages like Go or Rust. Also, looking to work with a smaller team where I can see the impact of my work.