- Abeja - Start-up that does analysis of people's shopping patterns in stores using cameras and stuff, sounds interesting; might not require Japanese
- Amazon - I THINK they now hire some developers
- Barclays - Self-explanatory; nice Mori Tower office
- Cookpad - Insanely popular recipe sharing service; I've heard it's kind of black from multiple Japanese people, but there are definitely good positions for foreigners; sweet Ebisu Garden Place office
- Crowdworks - Crowdsourcing, kind of like Japanese MechanicalTurk; very profitable
- CyberAgent (and CyberZ) - Big company; rich as hell; lots of foreigners; considered one of the best mid-sized Japanese tech companies to work for
- Degica - eCommerce platform; might not require Japanese
- DeNa - Big company; rich as hell; lots of foreigners; might be kinda black though, depending on the team; nice Hikarie office
- DMM - Started as a porn company but has branched out
- Eureka - Makes everyone's favorite Japanese tinder clone, "Pairs"; recently had an IPO
- Fast Retailing - Parent company for Uniqlo and others; pays fairly well apparently
- Finc - Mobile health tech; might be English-friendly
- FreakOut - Highly profitable company doing ad tech etc.
- Freee - Cloud accounting startup, recently raised $30M
- Gengo - Translation service, lots of foreigners; wouldn't require Japanese I don't think
- Github - Recently started hiring developers in Tokyo
- GMO - Huge company; might have something good somewhere
- Goldman Sachs - Self-explanatory; nice Mori Tower office
- Google - Consistently ranked best place in Japan to work; nice Mori Tower office
- Gree - Lots of foreigners but apparently very black (likely depends on team though); pays pretty well
- Gunosy - Might require Japanese; Post-IPO and profitable; runs another very popular news app and a large ad network; nice Mori Tower office
- Heroku - Infrastructure-as-a-service; recently bought by Salesforce
- IBM
- iKnow - Runs language-learning service iKnow; recently aquired by DMM
- Indeed - Self-explanatory
- JP Morgan
- Kaizen Platform - Pretty awesome company developing A/B testint as a service / analytics services; I think most people there speak English; has an office in San Francisco
- Kakaku.com - Runs Kakaku and Tabelog; pays pretty well; might be kinda black
- Lang-8 - Runs Lang-8 and HiNative; might be English-friendly
- LINE - English-speaking office in Fukuoka, JLPT N2/Japanese-required office in Tokyo
- M3 - I think they require Japanese, but it's a very impressive company; they run a social network for doctors
- MediWeb - Decent place to work supposedly; 100% pair programming
- Mercari - Incredibly successful "flea market" app; might require Japanese
- Microsoft - English-friendly with chances to speak Japanese; apparently have some interesting projects; nice Shinagawa office
- MoneyForward - Makes apps that help you manage your money and stuff I think
- Moneytree - FinTech located in the FINOLAB startup incubator office that is pretty foreigner friendly.
- Morgan Stanley - Self-explanatory, might require Japamese (the other major investment banks don't really)
- Nomura - Might require some Japanese
- Paidy - FinTech
- peroli (Mery.jp) - Runs Mery, recently aquired by DeNa
- Pivotal Labs - Recently started hiring developers in Tokyo; nice Mori Tower office
- Pixiv - Kind of like the Japanese deviantart
- Rakuten - Self-explanatory; I hear the research lab is great, the rest of the company is hit-or-miss by team; definitely English-friendly
- Reaktor
- Recruit Holdings - This company is massive and can be awesome if you get the right team; there MIGHT be a couple of teams that don't require Japanese ability; look around you on the train, half the ads you see will be for this company's services
- Retty - Makes a popular restaurant search app
- Smartnews - Might require Japanese but if not it's a great company; runs one of the top Japanese news apps; actually hard tech interview; free food; nice Shibuya office
- Spee - Adtech etc; fairly successful apparently
- Treasure Data - Awesome company developing data analytics/logging products (fluentd etc); some of them probably speak English; has an office in San Francisco
- Tsuru Capital - "casual atmosphere"
- VoyageGroup - Runs a bunch of different services; pretty decent place to work from what I've heard
- Voyagin - Small start-up that runs a travel recommendation service; around half foreigners; recently bought by Rakuten so less risky than some other start-ups
- Wantedly - Progressive job-search service with female ex-facebook CEO; might be English-friendly
- Yahoo - Self-explanatory
- Hacker News Tokyo or Osaka
- Mobile Monday
- Node Festival
- PHPcon
- Ride the Lightning
- RubyKaigi
- Scala Matsuri
- Startup Weekend
- Tech Talk Tokyo
- Tokyo iOS Meetup
- Tokyo Linux Users Group
- Tokyo Rubist Meetup
- UX Talk Tokyo
I won't link to specific recruiters because there are a million, they're easy to find, and everyone likes different ones. Companies that allow remote work in Japan.
- Forkwell - Japanese job search site; tons of jobs with min. salary of 5-6 million or more; filter by programming language
- Hacker News job threads - Lots of remote job opportunities
- Heikin Nenshuu - check salary stats for companies (any public company should be listed); e.g. Cookpad, M3, Cyberagent, Recruit
- Indeed
- JobTalk
- Justa - Like Indeed but more job listings in English
- Vorkers - Japanese Glassdoor basically; to get full access you need to either write a review (which is a huge pain in the ass), or pay for a premium membership; can still get overall rating without signing up though
- Wantedly - Lots of start-up jobs and some from bigger companies; literally just click a button and interested companies will respond
- WeWorkRemotely - more remote jobs
There's also a similar doc in a tabular format maintained at @btamada/jpswcomps.