Synechron Sr. Software Engineer interview questions

Very lengthy, core java , front end technologies, they were interested in databases and middleware applications, microservices, design patterns, strings, arrays, maps, hashsets, hashmaps, trees, btrees, css, ajax, jquery, data structures, algorithms, analysis, boolean, classes, object oriented programming Very lengthy, core java , front end technologies, they were interested in databases and middleware applications, microservices, design patterns, strings, arrays, maps, hashsets, hashmaps, trees, btrees, css, ajax, jquery, data structures, algorithms, analysis, boolean, classes, object oriented programming Very lengthy, core java , front end technologies, they were interested in databases and middleware applications, microservices, design patterns, strings, arrays, maps, hashsets, hashmaps, trees, btrees, css, ajax, jquery, data structures, algorithms, analysis, boolean, classes, object oriented programming Very lengthy, core java , front end technologies, they were interested in databases and middleware applications, microservices, design patterns, strings, arrays, maps, hashsets, hashmaps, trees, btrees, css, ajax, jquery, data structures, algorithms, analysis, boolean, classes, object oriented programming

I got a call from synechron for senior software Engineer. I completed 2 technical rounds and the HR said I will get a call for HR round. But they did not call back.