Antoni, You'll want to get an employer disclaimer signed by your employer to make sure your contributions cannot be claimed by them. Please email ass...@fsf.org and we can work through the process.
-- All the best, Craig Topham Copyright & Licensing Associate Free Software Foundation 51 Franklin Street, Fifth Floor Boston, MA 02110 Phone: +1-617-542-5942 Fax: +1-617-542-2652 Email: cra...@fsf.org GPG key: 36C9 950D 2F68 254E D89C 7C03 F9C1 3A10 581A B853