curl -X POST "https://www.welcomekit.co/api/v1/external/candidates" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer WK_API_KEY" \
"organization_reference": "Pg4eV6k",
"job_reference": "WTTJ_KmqkD1Y",
"remote_resume_url": "http://example.com/resume.pdf",
"remote_portfolio_url": "http://example.com/portfolio.pdf"