Continuing Education as an ALT: What Professional Development Actually Looks Like in Japan

Most advice on professional development for teachers abroad stops at the TEFL certificate. That covers the first step: a formal qualification to teach English as a foreigner. It says very little about what comes after you have the job and want to keep building your career while working full time.

Assistant Language Teachers (ALTs) in Japan work alongside Japanese Teachers of English (JTEs) in public schools, and the role leaves more room for study than people often expect.

Based on real hiring data and firsthand accounts from Interac staff, here is what continuing education actually looks like once you are already teaching in Japan: from the TEFL and TESOL stage through postgraduate study, language qualifications, and the practical skills that matter for what comes next.

Studying While Teaching: What’s Realistic on an ALT Schedule?

The honest answer is that it depends on the role. Brian, a consultant at Interac, completed a master’s degree online while working for Interac in Japan, though as Interac office staff rather than an ALT. “It was hard. I basically had to give up my weekends,” he says.

His experience points to something worth knowing before you plan around it: office hours and school hours are not the same. As Brian puts it, “if I had been an ALT, it would have been much easier, because ending the school day at 4 or 5pm would have given me more time on weekdays to study.” Most ALT contracts follow the school day, which typically finishes in the mid-afternoon, leaving evenings freer than a standard office role would.

None of this means study is effortless, and teaching abroad in Japan can be hard.

Lesson planning, marking, and settling into a new country all take real time, particularly in your first term. But the schedule structure of the ALT role is one reason so many teachers use their time in Japan to work toward a qualification rather than putting it on hold.

TEFL and TESOL: What ALTs Actually Hold, and What “Accredited” Really Means

Most people researching English teaching abroad run into heavy marketing around TEFL and TESOL courses, often with bold claims about accreditation. Interac does not recommend a single standard course, though the company has worked with the International TEFL Academy in Chicago on past hiring.

To see what ALTs actually hold, Interac reviewed three years of hired applicant data. TEFL and TESOL certificates were the most commonly reported, most often in 120-hour online or hybrid formats. Smaller numbers of applicants held CELTA, Trinity CertTESOL, TESL, TEYL or TYL certificates, or university-linked TESOL credentials.

Certificate Providers Most Common Among Hired ALTs

The remaining share of the sample listed a certificate without a clear provider, or the detail was too general to extract with confidence, which is why no single provider dominates the picture. There is also a wide range of free online courses you can take in Japan.

One distinction matters here: this data identifies certificate providers, the organizations that issue the course and certificate, not formal accrediting bodies, the separate institutions that evaluate and approve a course’s standards.

A provider can describe its course as accredited without that claim being independently verifiable from hiring data alone. If accreditation matters to your plans, it is worth checking directly with the provider which body accredited the specific course, rather than relying on marketing language alone.

Beyond TEFL: Other Certifications and Study Paths ALTs Pursue

TEFL and TESOL tend to be the entry point, not the ceiling. Among ALTs and Interac staff, a wider range of study paths comes up regularly:

• The Japanese Language Proficiency Test (JLPT): many ALTs work toward JLPT levels during their time in Japan. Brian reached N2, the second-highest level, while working here.
• Postgraduate study: some ALTs and staff pursue master’s degrees or doctorates alongside their teaching work, often in education or related fields.
• HR and professional certifications: one former colleague completed the SHRM-SCP and Assoc CIPD Level 5 credentials, both recognized human resources qualifications, while working as an ALT.
• Publishing and academic work: several former ALTs have gone on to become published authors, and some Interac trainers present at academic conferences.
• Japanese-market office skills: for ALTs considering work in a Japanese company after teaching, practical skills such as Excel and PowerPoint, particularly functions like VLOOKUP and pivot tables, are commonly expected by local employers.

These are individual examples rather than typical outcomes, and how much you can realistically take on will depend on your placement, your Japanese level, and your own schedule. What they show is the range: continuing education as an ALT is not limited to a single certificate. Take a look at some of the transferable skills from being a teacher.

What Comes After: Career Paths Beyond the ALT Role

The study paths above rarely exist in isolation. A JLPT qualification, a master’s degree, or an HR certification earned while teaching often feeds directly into what an ALT does next, whether that means staying in education, moving into corporate roles in Japan, or taking teaching experience elsewhere.

If you are thinking about where an ALT role could lead, our guide to career progression after being an ALT covers the paths former ALTs have taken in more detail.

How Interac Supports Ongoing Development

Whatever else you study, the foundation starts with the training built into the role itself. Interac ALTs begin with a five-day initial training program covering classroom fundamentals and demo lesson practice, followed by ongoing training sessions and in-school observation throughout the placement. That structure gives you the base teaching skills to build everything else on top of.

If you want to see how the training program works in full, including what ongoing support looks like after your first term, our training program page breaks down each stage.

Continuing education as an ALT rarely follows a single track. It tends to combine a starting TEFL or TESOL certificate, whatever further study or language goals fit your schedule, and the practical skills that matter for what comes after.

If that combination sounds like the kind of role you are looking for, find out more about applying to become an ALT with Interac.