Yaseen Ammaar, a 23-year-old freelancer, built Sniff, an AI tool that helps freelancers find hidden job postings from platforms like LinkedIn, Twitter, and private groups on Telegram, Discord, and WhatsApp. Sniff collects 1,000 job posts daily, filters out spam, and shows only relevant listings. With its ChatGPT-like interface, it simplifies job searches through easy queries and prompts.