My boss just brushed it off and said he was just a flirt and that I had nothing to worry about. He seemed completely unconcerned about my discomfort.

Find a new job. Your boss will never do anything about this. Not only will he not do anything about you being harassed, but I personally would never trust him again because of it. Life is too short to work for someone who doesn't care even the tiniest bit about your wellbeing.

I also don't want to give up because of him.

Don't look at it as giving up because some creeper is harassing you, look at it as refusing to stay at a company that doesn't care in the slightest that someone is harassing you.

There's one thing that the other answers seem to be missing that's frustrating me: actually suing the company for not doing anything about your harasser has consequences. As a woman developer myself, I hope you sue and win and the judge makes an example of them, but I'd be a real jerk if I didn't acknowledge the fact that a) going to court sucks - it's an expensive, grueling process that may not yield any good results - and b) it's wildly unethical and a huge red flag, but some employers will look at an employee who sued their employer as a troublemaker and not hire them.

Absolutely consult with a lawyer, but you should in no way feel obligated to actually sue. If you do decide to speak with a lawyer, be sure to ask what potential downsides going to court could have.

My boss just brushed it off and said he was just a flirt and that I had nothing to worry about. He seemed completely unconcerned about my discomfort.

Find a new job. Your boss will never do anything about this. Not only will he not do anything about you being harassed, but I personally would never trust him again because of it. Life is too short to work for someone who doesn't care even the tiniest bit about your wellbeing.

Even if you can eventually force your boss to do his job (and it is literally his job to keep people from ruining his team's productivity, which is what your harasser is doing) by hounding him until he does it, do you really want to work for someone who will only look out for your best interests (and your productivity!) if you make it more trouble to ignore you than to protect you?

Imagine that instead of a harasser your office had a broken electric tea kettle that shot sparks whenever someone turned it on. If you reported that to your boss and he didn't do anything about it, you would leave, right? Not even necessarily because of the kettle, but because your boss wouldn't do the simplest thing to keep you safe.

I also don't want to give up because of him.

Don't look at it as giving up because some creeper is harassing you, look at it as refusing to stay at a company that doesn't care in the slightest that someone is harassing you.

There's one thing that the other answers seem to be missing that's frustrating me: actually suing the company for not doing anything about your harasser has consequences. As a woman developer myself, I hope you sue and win and the judge makes an example of them, but I'd be a real jerk if I didn't acknowledge the fact that a) going to court sucks - it's an expensive, grueling process that may not yield any good results - and b) it's wildly unethical and a huge red flag, but some employers will look at an employee who sued their employer as a troublemaker and not hire them.

Absolutely consult with a lawyer, but you should in no way feel obligated to actually sue. If you do decide to speak with a lawyer, be sure to ask what potential downsides going to court could have.

I thought of a better way to explain what I'm trying to get at: a lawyer is not a magic wand. You cannot wave one around and expect all of your problems to disappear.

My boss just brushed it off and said he was just a flirt and that I had nothing to worry about. He seemed completely unconcerned about my discomfort.

Find a new job. Your boss will never do anything about this.

I also don't want to give up because of him.

Don't look at it as giving up because some creeper is harassing you, look at it as refusing to stay at a company that doesn't care in the slightest that someone is harassing you.

My boss just brushed it off and said he was just a flirt and that I had nothing to worry about. He seemed completely unconcerned about my discomfort.

Find a new job. Your boss will never do anything about this. Not only will he not do anything about you being harassed, but I personally would never trust him again because of it. Life is too short to work for someone who doesn't care even the tiniest bit about your wellbeing.

I also don't want to give up because of him.

Don't look at it as giving up because some creeper is harassing you, look at it as refusing to stay at a company that doesn't care in the slightest that someone is harassing you.

There's one thing that the other answers seem to be missing that's frustrating me: actually suing the company for not doing anything about your harasser has consequences. As a woman developer myself, I hope you sue and win and the judge makes an example of them, but I'd be a real jerk if I didn't acknowledge the fact that a) going to court sucks - it's an expensive, grueling process that may not yield any good results - and b) it's wildly unethical and a huge red flag, but some employers will look at an employee who sued their employer as a troublemaker and not hire them.

Absolutely consult with a lawyer, but you should in no way feel obligated to actually sue. If you do decide to speak with a lawyer, be sure to ask what potential downsides going to court could have.