HENNGE Global Internship Program in Japan (Rolling Batches, Unpaid with Subsidies)

About the programme

HENNGE is a Japanese software company best known for HENNGE One, a cloud-security service, and its Global Internship Program brings international students into its Shibuya office in Tokyo for four to six weeks of real development work. Interns work Monday to Friday, 10:00 to 19:00 Japan time, on-site, in one of two pathways: Full-Stack or Front-End. The work is product work, not a classroom simulation, and the programme is explicit that outstanding participants may receive a full-time offer. That offer is a possibility, not a promise, and applicants should not treat the internship as a guaranteed job route. The value of the placement, for most participants, is the experience itself: shipping code in a Japanese technology company, working in English in a Tokyo office, and building a portfolio and references that carry weight for later roles in Japan or elsewhere.

The rolling, first-come, first-served model is the part of the programme most often misunderstood. Because batches run through the year and close when slots fill, there is no annual deadline to plan around, and aggregator batch calendars disagree with each other: one lists June, August and November batches for 2026, another lists March, June and August batches, and neither can be treated as authoritative. The official recruitment page is the only reliable source for current batches, and applicants should check it, choose a batch they can actually attend, and apply early rather than waiting for a deadline that does not exist. A batch that looks open on an aggregator page may already be full on the official page.

Benefits

• Real product experience in Tokyo: four to six weeks on-site in Shibuya, working on Full-Stack or Front-End development in a live product team, during normal working hours. That is a stronger signal to future employers than a short remote project.
• A monthly subsidy, amount not published: HENNGE provides a monthly subsidy, but its official page does not publish the amount, so this article states none. Any precise figure quoted by an aggregator for this subsidy is unverified, and you should confirm it with HENNGE before relying on it for a Tokyo budget.
• Round-trip airfare and visa guidance: airfare to Japan and guidance on the visa process are included in the subsidy package, which removes two of the largest practical barriers to a short Tokyo placement.
• Medical insurance and a Japanese phone with data: medical insurance is provided, and interns receive a Japanese mobile phone with data, so that daily life and work in Tokyo do not depend on roaming or on buying a local plan on arrival.
• Office facilities, refreshments and cultural events: office facilities and refreshments during the working day, plus cultural events, are part of the package, and they matter for a short placement: they are how an intern settles into a Tokyo office quickly.
• A possible full-time offer, not a guarantee: outstanding participants may be offered a full-time role. Treat that as a possibility to work towards, not as part of the award, and do not decline other opportunities on the assumption that it will happen.
• What it is not: it is not a paid internship and it is not fully funded. The official wording is unpaid with subsidies, and this article uses that wording throughout, because a student who budgets for a salary will run short in Tokyo.

Who can apply

• Third-year Bachelor students or above: Bachelor students in their third year or later, Master and PhD students, and recent graduates are eligible. First and second year undergraduates should wait until they meet the year requirement.
• Computer Science or a related degree, or equivalent technical experience: a computing degree is the normal route, but equivalent experience, such as an internship or a bootcamp with real technical work, is also accepted. The coding challenge, not the degree title alone, is the practical test.
• Fluent English, no Japanese required: the working language is English, and Japanese is not required. That is a genuine advantage for international applicants, and it is confirmed on the official page.
• Linux, macOS or Unix-like knowledge: familiarity with a Unix-like environment is expected, reflecting the development environment at HENNGE. Applicants without that familiarity should build it before the coding challenge.
• Interest in open source and the tech community: an interest in open-source work and in the wider technology community is part of the profile HENNGE looks for, and it should show in the cover letter, not just in the CV.
• Choose one pathway, or apply separately for both: Full-Stack and Front-End are separate pathways, and separate applications are required if you apply to both. Do not submit one combined application and expect it to cover both.

Documents required

• CV and cover letter, submitted with the pathway coding challenge and your batch preferences. The coding challenge has no time limit, which is unusual and useful: take the time to do it well rather than rushing it.
• The completed coding challenge: this is the central document of the application, more important than any transcript. Register and verify your email, complete the pathway challenge, and upload the CV and cover letter with your batch preferences.
• Unverified extras are not stated as requirements: a GitHub link, passport and enrolment proof appear in a secondary source, but they are not confirmed on the official page, so this article does not present them as official requirements. Have a GitHub profile ready if you have one, because it helps a technical application, but do not treat it as a stated rule.

How to apply

1. Go to the official HENNGE recruitment page for the Global Internship Program and check the current batches on that page, not on an aggregator calendar. Choose a batch you can attend in full, on-site in Tokyo.
2. Register and verify your email, then complete the coding challenge for your chosen pathway. There is no time limit on the challenge, so use that time to produce clean, working code.
3. Upload your CV and cover letter, and select your batch preferences. If you want both pathways, submit separate applications for each.
4. Shortlisted candidates receive a phone screening, followed by an online interview. Prepare to discuss your coding challenge work concretely, and your interest in open source and in working in Tokyo.
5. Apply early for the batch you want, because applications are reviewed first-come, first-served and batches close when slots fill. Waiting for a deadline that does not exist is the most common way to miss a batch.

FAQs

Verified 29 Oct 2026 against HENNGE's official recruitment page (recruit.hennge.com/en/gip: unpaid with comprehensive subsidies, monthly subsidy, round-trip airfare, visa guidance, medical insurance, Japanese mobile phone with data, office facilities and refreshments, cultural events, 4-6 weeks on-site in Shibuya, Tokyo, Mon-Fri 10:00-19:00 JST, Full-Stack and Front-End pathways, third-year Bachelor or above, fluent English with no Japanese required, Linux, macOS or Unix-like knowledge, CV plus cover letter plus coding challenge with no time limit, phone screening then online interview, first-come first-served review) plus Bright Scholarship (queue source) and DAADScholarship.org summaries, and OYA Opportunities for the 2027 advertising. CONFLICTS: (1) Bright and aggregator "fully funded" labels are REJECTED in favour of the official "unpaid with subsidies" wording. (2) Batch calendars disagree across aggregators (Bright: Jun, Aug, Nov 2026; DAAD: Mar, Jun, Aug 2026) and a November batch appears in Bright only and is unverified - the article publishes no batch calendar and directs readers to the live official page. (3) No monthly subsidy amount is published on the official page, so none is stated. (4) GitHub link, passport and enrolment proof appear only in a secondary source and are not presented as official requirements. (5) The 2026 cycle is effectively superseded by 2027 advertising, so the article is framed as rolling batches, not as a 2026 cycle.