i've met some arabs in tech in israel. but they are not nearly as many as in medicine

It's getting better. More and more Arabs are entering the Israeli tech world.

The most prominent arab Israelis in tech usually leave Israel for the US, e.g. Nafea Bshara (co-founder of Annapurna Labs, now an Amazon subsidiary) and Johny Srouji ( http://www.bloomberg.com/features/2016-johny-srouji-apple-ch... ).

SolidRun [0] which makes Cubox and Hummingboard (popular micro ARM boxes, among other things), is also founded and run by arab Israelis.

Of note, I have met quite a few arab israelis in technolgoy, and every single one was from a christian family background. I'm sure there must also be arab israeli muslims into technology (among arab israelis, muslim outnumber christians 10:1) - but I have not yet met any in my travels.

[0] https://en.wikipedia.org/wiki/SolidRun

You'd meet more in Haifa area. Arab engineers I worked with in Tel Aviv all came from Haifa, Nazareth or further north.

Tel Aviv is probably the worst place in the country to look for Arabs in hi-tech; Most of them are concentrated in the Haifa and Yoqneam region. (And possibly in other areas of the country which are less of a hi-tech hub.) In some companies in that area the Arab engineers probably outnumber the non-Arabs - the Technion churns out quite a few high quality Arab engineers on a yearly basis.