500k Contact Email Scrape

I need a clean, well-structured database containing 500,000 B2B contacts who hold IT or other technical positions. For every record, capture the email address, job title and company name so I can plug the list straight into my outreach workflows... (Budget: $30 - $250 USD, Jobs: B2B Marketing, Data Collection, Data Entry, Data Mining, Data Scraping, Database Management, Email Marketing, Lead Generation, Web Scraping, Web Search)