Just apply for their job postings and all you will get is this
Thank you for your interest in siren!
We received an overwhelming response to the Junior Web Developer Vacancy we had recently advertised. Which makes us feel both humble and proud that so many talented individuals (like you!) want to join our team. This volume of response makes for an extremely competitive selection process. Although your background is impressive, we regret to inform you that we have decided to pursue other candidates for the position at this time.
Just as we at siren value our customers, we value our job candidates and invite you to review future job openings. We hope you see another position that sparks your interest!