Lead Tech Consultant (Tokyo)
Reaktor
Posted: December 16, 2025
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Quick Summary
We are seeking a Lead Tech Consultant to join our Tokyo team, responsible for leading digital transformation projects and providing expert guidance to clients in the Japanese market.
Required Skills
Job Description
Reaktor's award-winning tech community is looking for a Lead Tech Consultant to join us in Tokyo.
At its core, Reaktor is a technology company that helps ambitious organizations become digital leaders. From premium software development to digital transformation, our global community of experts do it all. Here are some of our most recent digital ventures to give you an idea of what that means.
Reaktor Japan is a part of the global Reaktor family, serving clients in the Japanese market. We’re an ambitious bunch of people looking for a Lead Tech Consultant to join our team in Tokyo.
This is a role that demands deep technical expertise, strong consulting skills, and excellent communication in both Japanese and English.
Your role:
You will be responsible for guiding clients, leading teams and ensuring the successful delivery of complex digital solutions. You will operate at the intersection of technology, business, and product; turning client needs into clear, actionable projects all while working as part of the development team to achieve outstanding results.
Your daily tasks include:
• Act as the senior technical advisor for our clients as well as your internal team
• Work together with the client’s technology and business teams, facilitating collaboration between different stakeholders to ensure quality delivery
• Plan and implement new features as part of the development team across frontend, backend and infrastructure
• Building relationships with the client to ensure future collaboration
• Support in early sales engagements by acting as the technical advisor to prospective customers
• Improving the team's ways of working by empowering them to discover optimal workflows and enabling a healthy work-life balance among team members
• Assisting the team in adopting and following agile practices
You are an experienced technical consultant who can work as part of a development team, while having a strong focus on the client relationship and growing the collaboration.
To thrive in this position, you’ll need:
• Excellent verbal & written Japanese and English skills
• Have previous experience in leading teams as well as client management (project management / account management)
• Strong experience across frontend, backend and infrastructure. While we’re not looking for an expert in all areas, being specialised in one area while still proficient in others is within expectations
• Usually, to be successful in this role at Reaktor, we noticed it’s good to have about 10 years or more of relevant professional experience
• Previous experience with at least one common server-side programming language. Currently, many of our projects are built with TypeScript/JavaScript and Node.js. But, Java/Scala/Kotlin, Golang, and Python are also used
• Strong knowledge of at least one common client-side language and framework. We often use TypeScript/JavaScript and React on our web app projects and Swift, Java/Scala/Kotlin, or TypeScript/JavaScript/React Native on mobile
• Relevant skills to create new back-end services and tweak CI/CD pipelines when the project requires
• Know-how on databases (e.g., PostgreSQL)
• Willingness to work either from our Ebisu office or the client’s premises (occasional remote work is allowed)
Why join us?
For over 10 years, Reaktor Japan has been solving complex digital problems for Japanese clients with our small, high-performing, interdisciplinary teams. We place humans at the center of everything we do, both in our client project work and our internal work. As part of our Culture of Better, we believe that everything we do today, can be done better tomorrow. We believe in the well-being of our people and believe that we can continuously be a better workplace for them, and our clients, to thrive in Japan.
While working at Reaktor, we’ll provide you with:
• The ability to impact how you work. Together with the client, your team chooses the approach, technologies, and methodologies you think will work best in any given situation
• A community with as much support as your heart desires
• A team that’s not only experienced but considerate as well – they all want you to succeed
• An opportunity to grow as a professional. In addition to the day-to-day work, we offer internal training courses, community events, and 15-minute coffee breaks to discuss hot topics in tech and design
• A sustainable work-life balance and support for your daily life outside of work.
• A top-spec laptop and phone of your choosing to work with and use at work and home. If you need other tools, like a keyboard or a mouse, we'll figure it out!
Interested? Drop us a line – We'll be happy to hear from you!