Software engineer quits without new job, lands role in under a month using AI

A software engineer resigned from his position at a billing company in October 2025 without another job offer in hand. Within roughly 30 days he accepted an offer at a product-based company. The engineer had worked at the billing firm since 2021 and had advanced to senior software engineer.

He said he wanted to gain experience in different industries and chose to leave after several months of consideration.

Job search timeline His notice period lasted about 15 days instead of the expected 90. He spent the first two days updating his LinkedIn profile and résumé with recent projects. Before his final day he applied to openings for two hours each morning. After work he prepared for interviews from 8 p.m. until as late as midnight.

AI tools He prompted ChatGPT to act as an experienced résumé writer and later to generate interview-preparation plans based on each job description. The tool produced sample questions that frequently appeared in actual interviews. When he encountered unfamiliar topics during interviews, he recorded the questions and asked the chatbot for explanations, then verified uncertain answers on Google.

Networking and outcome He also posted regularly on LinkedIn about frontend and software engineering topics. A contact at one target company saw the posts and submitted a referral, leading to an interview offer. He accepted the new position in early November 2025, less than a month after submitting his resignation.