Senior Accounting Engineer

We are looking for a talented Senior Accounting Engineer to join our team in Akihabara, Tokyo, working closely with our Finance team to strengthen real-time financial reporting.

In this role, you will build automated reconciliation and data integration systems connecting our sales and payment platforms, giving the business accurate, real-time visibility into sales performance. You’ll start by automating daily reconciliation between our e-commerce and payment platforms. Later you’ll evolve this into a real-time reporting and dashboards. As our financial reporting capabilities mature, this role has the flexibility to grow into a broader engineering position supporting ongoing projects closely tied to Finance.

A successful candidate is comfortable owning the full lifecycle of financial data, from acquisition and integration through to secure, reliable reporting, and brings a disciplined, detail-oriented approach to handling sensitive financial information. Since this role works closely with our Finance and Accounting stakeholders, strong communication ability in both Japanese and English is essential.

Responsibilities

- Design and build automated reconciliation across sales and payment platforms

- Design and build automated inventory costing and reconciliation across external warehouse reports globally

- Own data acquisition and integration pipelines feeding financial and reporting systems

- Develop next-day reporting of sales, cost of sales and payment metrics, evolving toward a real-time dashboards

- Ensure the security, accuracy, and integrity of financial data across all systems it flows through

- Collaborate directly with Japan-based Finance and Accounting stakeholders to define reporting requirements

- Maintain stability, performance, and quality of reporting pipelines while following team development standards

- Evaluate new feature requests and process improvements based on business impact, making consistent, disciplined decisions

- Participate in code reviews, retrospectives, and individual meetings with internal stakeholders

Requirements

- 5+ years of professional software engineering experience

- Business-level fluency in Japanese, spoken and written

- Strong proficiency with SQL relational databases

- Strong experience designing data models for analytics and reporting

- Strong experience with modern data warehouse platforms (e.g., BigQuery) and ETL/ELT ingestion pipelines

- Strong experience handling and securing sensitive financial data

- Strong verbal and written communication skills

- Programming ability in Python or another general-purpose language, with an understanding of data structures, error handling, logging, and testing.

- Experience with reporting/BI systems (e.g., Tableau, Looker Studio, Metabase, or similar)

- Experience collaborating with cross-functional and international teams

Nice to haves

While not specifically required, tell us if you have any of the following.

- Experience with FREEE and BPA using API is a strong plus

- Experience with payment/e-commerce platforms (e.g., KOMOJU, WooCommerce) is a plus

- Experience with cloud infrastructure (GCP, AWS, or Azure) is a plus

Hiring Process
- Initial Screen
30 minute video call with HR, focused on whether you generally match.

- First Video Screen
30 minute video call with 2 team members, where you’ll be able to ask questions about the position.

- Homework Assignment
You’ll be given an assignment which you’ll have about a week to complete.

- Two Back-to-Back Interviews
This pair of interviews will focus on your skill. It consists of a one hour interview with two team members, a 15 minute break, and then another one hour interview with two team members.

- Interview with Board Members
- Offer