Software Developer With Java Experience

I have worked on some freelance java jobs that required heavy mastery of object oriented programming. I worked on some cyber security job that required some tools like kibana, sguil, security Onion for threat detection and inclusion mechanisms. Still on cyber security i have another job that requires investigating a web site to find vulnerabilities and possible areas that can be prone to a cyber attack or malware. I have worked on a C# project that required compiler construction using visual studio. Here, there was a strong need to understand concepts of OOP. I have worked on a backend job using spring framework. I am currently on two web projects and two mobile jobs using kotlin. Also, using Java I've worked on freelancing jobs that required data structures and algorithms. I can say that most of my professional exposure has been freelancing and i look forward to explore it better.