Just a word of caution: in interviewing be sure to frame your reason for leaving as only that you were deceived as to the product the hiring manager develops. I

Just a word of caution: in interviewing be sure to frame your reason for leaving as only that you were deceived as to the product the hiring manager develops. It would hurt you if people view you as a person who quits when things get boring (which if you're not careful in your explanation is how it could come off). Also I would not try to hide that you have this job (e.g., in interviews). But a resume need not include this job. Some commenters here don't sympathize with you so much. I think they are wrong and that the employer misrepresented the job intentionally. That might even run afoul of employment law. Sorry to hear about this.