Technical Account Manager

Confidential

Minato-ku, Tokyo Hybrid permanent

Posted: May 12, 2026

Job Description

The Plant works with leading brands and hires top talent who can handle a high degree of freedom and ownership. We are hiring a Technical Account Manager to lead complex enterprise B2C e-commerce engagements end-to-end. You’ll be the primary point of contact for the client, the operational lead for the delivery team, and the person responsible for translating between business intent and technical execution.

Responsibilities

Client ownership. Serve as the primary client contact by managing relationships, expectations, and commercial scope with senior stakeholders in Japanese and English.

Delivery leadership. Run project planning, staffing, budgets, risk, and quality across multi-disciplinary teams (engineering, QA, product, design).

Requirements and process. Lead requirements gathering by translating client business needs into clear, actionable specifications for the delivery team.

Technical judgment. Make and defend technical trade-offs at a level sufficient to collaborate with architects and senior engineers.

Stakeholder communication. Maintain alignment across both client and internal leadership.

Requirements

Track record of delivering enterprise-level e-commerce projects as the lead PM or technical account lead.

Working proficiency in Japanese and English — including technical and commercial conversations.

Demonstrated systems literacy: comfortable reasoning about APIs, integrations, data flows, and release processes.

Strong consultative and stakeholder management skills in environments with multiple vendors and senior client counterparts.

Preferred

Background in computer science or equivalent demonstrated competency.

Prior experience in digital transformation engagements or product-adjacent roles.

Hands-on EC product experience across conversion optimization and experimentation (CRO, A/B testing, funnel analytics).

Familiarity with PDP, on-site search, and merchandising levers (recommendations,faceted navigation, catalog/PIM).

Working knowledge of the Japan EC payment and CRM landscape — konbini, PayPay,Rakuten Pay, LINE as a marketing channel, Rakuten/Amazon JP marketplace dynamics.

Comfort with web analytics and measurement — GA4, event taxonomy, attribution model trade-offs.

Experience with using AI to improve daily workflows, prototyping and/or coding.

More about working at The Plant

At The Plant, we believe firmly that employee growth drives our clients’ success. We encourage everyone to succeed by leading oneself, being reliable, communicating with care as well as developing one’s own craft and supporting others to excel.

You can work from your own home office, so a reliable internet connection and a quiet workspace is required. Because this role involves daily communication with Japanese clients, we’re looking for someone already based in Japan. We work remotely most of the time, but we also enjoy getting together a few times a year for company events and team activities — a chance to connect face-to-face and celebrate our shared work.

By clicking 'Apply', I agree to The Plant's Handling of Personal Information (https://the-plant.com/handling-of-personal-information/) and Privacy Policy (https://the-plant.com/privacy-policy/)

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