New regulations from Polish Govt makes it easy for international students to get a part time job, you don’t need special permission for applying a partime job, But get the residential card first then apply for job. If you get a job and then apply for residence card you have to apply for work residence card which is very hard to get than getting a Student residence permit.
In order to land in part time or permanent job you need good English, if you don’t know English German, Spanish, French, Polish with IT skills are required .There are many MNC companies in Poland which prefer people who speak English.
Infosys, H&M, City Bank,Samsung, HCL have their base in Poland you can apply jobs for these companies.
To know more about jobs in above mentioned companies Click here
Moreover you can contact your career office of your University for Part time jobs and internship options. Some college will have Job fairs where companies will recruit students from Universities.
Career office of top seven universities are listed here.
Finally if you are planing to settle in Poland or Get a permanent job in Poland, learning Polish language will help you a lot in the prospectus.