Analyze this job description and extract structured information.
Return a JSON object with exactly these fields:

- company_name: The company name
- role_title: The exact job title
- department: Department or team if mentioned
- location: Job location(s)
- key_requirements: List of 5-10 most important requirements/qualifications
- responsibilities: List of main job responsibilities  
- technical_skills: List of technical skills mentioned
- soft_skills: List of soft skills mentioned
- keywords: List of important keywords for resume optimization
- seniority_level: junior/mid/senior/lead/director/vp/c-level
- summary: 2-3 sentence summary of the role

Job Description:
{text_content}

Return ONLY valid JSON, no other text.
