How to change work
Before you start looking for a job, answer yourself to the following questions: what does the current job do not suit you, what do you expect from a new one, what are you willing to sacrifice for it, and what does not. The answers will allow you to formulate the requirements for a potential employer and save time, immediately eliminating deliberately inappropriate proposals. In fact, you are not just looking forthe work. but choose. Besides, you have a source of income and a sphere of application of forces, and if you change something, it's only for the better.
The technology of job search is exactly the same as in any other situation: monitoring of vacancies for positions of interest in all possible sources (media, job search sites, social networks and professional communities, acquaintances, etc.), sending summaries, telephone communication with representatives possible, employers, job interviews, testing of professional abilities, portfolio demonstration, etc. The only caveat - your intention to change jobs is better not to advertise until you get a specific offer. Although serfdom was abolished more than 100 years ago, not all leaders are comfortable with this.
But here the offer is received, and there is one more important moment - to inform about the decision to the current employer. Do it as diplomatically as possible, let it be understood that nothing personal, but the working conditions elsewhere is objectively better for you. Ideal if the news reacts calmly and you leave peacefully. Make it clear that you are ready to complete all current affairs, introduce the person who will replace you. If you receive a counter offer of more favorable terms on your current job, think: maybe an old friend is better than the new two. If the employer is frankly insolent, stand on your own and seek redundancy: the law is on your side.