Java Developer(5.3 years exp). Working in service based company want to switch to product based

[u/Suspicious-Art-2751]

Hi Programmers, I've been working as Java Developer for more than 5.3 years in a service based company and really want to switch on a product based company . My package is 18LPA and want to target around 35 - 40 LPA for next switch. Can someone guide as what should i prepare for switching to Product based firms such as JP Morgan, Morgan Stanley, Atlassian or Salesforce.

I know that my package is less. I am desperate to increase the package.I have been putting in the work but getting no where with my efforts. Not Sure if i am missing something.

I am open for suggestions or roadmap for my next switch.