採用企業
Humble Bunny 株式会社
勤務地
東京都 23区
雇用形態
正社員
給与
350万円 ~ 450万円
リモートワーク・在宅勤務服装カジュアル副業OKフレックスタイム制
≪Job Description & Position Highlights≫
Play a key role supporting company operations across administration, HR, finance, legal, and executive support.
Work directly with the CEO and leadership team while coordinating with external accountants, legal advisors, vendors, and business partners.
Use English daily in an international work environment while supporting Japanese administrative and government procedures.
Hybrid work model with opportunities to grow into a senior operational role as the company continues to expand.
About the Role
Humble Bunny is a digital marketing agency specializing in helping global brands successfully enter and scale in the Japanese market.
We challenge the conventional belief that "Japan is a difficult market" by combining deep cultural understanding with data-driven marketing frameworks such as LocaRISE®, TrueCopy, and TrueVP to build repeatable systems that generate sustained business results.
As an Administrative Assistant, you will play a vital role in supporting the day-to-day operations of the business across administration, finance, HR, legal coordination, and internal operations. Working closely with the CEO and leadership team, you will help ensure the company operates efficiently while supporting both employees and external business partners.
This role goes beyond traditional administrative work. You will coordinate finance administration, payroll support, HR documentation, legal and compliance processes, vendor management, and company operations, ensuring that internal processes run smoothly and efficiently while enabling the wider team to focus on delivering outstanding results for our clients.
As Humble Bunny operates primarily in English, you'll use English on a daily basis for internal communication, documentation, and collaboration. Japanese is essential for handling government procedures, employee documentation, and domestic administrative matters, making this an ideal opportunity for a bilingual administrative professional looking to grow within an international company.
If you would like to learn more about the company
or get a better idea of what it would be like to work here after joining,
please also take a look at the following link:
https://bit.ly/hb-recruit-deck-jb
Key Responsibilities
Finance Administration
Prepare and issue monthly client invoices
Track accounts receivable, payment due dates, and outstanding invoices
Process inbound payment confirmations and coordinate outbound vendor payments
Maintain financial administration records and supporting documentation
Payroll & HR Administration
Review payroll information with external accountants
Process employee transportation expenses, reimbursements, and business trip allowances
Coordinate bonus administration and salary payment schedules
Prepare employment certificates and support employee documentation requests
Legal & Compliance Coordination
Coordinate with external legal advisors when required
Manage NDAs, contracts, and company documentation
Support visa, permanent residency, and other employee administrative procedures
Maintain company compliance documentation and records
Company Operations
Organize financial, legal, and operational documents
Manage internal administrative systems and company records
Schedule recurring operational meetings and support leadership activities
Assist in updating company policies, staff manuals, and internal documentation
What Makes This Role Unique
Broad operational role spanning administration, HR, finance, legal, and business operations
Work directly with the CEO and leadership team with visibility across the entire business
Daily use of both English and Japanese in an international company
High level of ownership with opportunities to improve internal processes and operations
Clear career progression from Administrative Assistant to Administrative Specialist
Location
Shibuya, Tokyo (Hybrid work model)
Hybrid work model
3 days remote per week
Subject to change
Depending on business needs, performance, or company initiatives, additional office days may occasionally be required.
Compensation
Annual Salary: ¥3.8 Million – ¥4.6 Million
Working Conditions
Flexible working system (Core hours: 11:00 AM – 5:00 PM)
Average working time: approx. 40 hours per week
Hybrid work model (up to 3 days remote per week)
Office location: Shibuya area, Tokyo
Up to 2 months per year fully remote (Nomad Work option available)
Holidays & Benefits
Two-day weekend system (Saturday and Sunday)
Paid leave (encouraged usage / effectively flexible system)
Side work permitted
Full social insurance coverage
Career development support programs
職務経験
1年以上
キャリアレベル
中途経験者レベル
英語レベル
ビジネス会話レベル (英語使用比率: 75％程度)
日本語レベル
流暢
最終学歴
大学卒： 学士号
現在のビザ
日本での就労許可が必要です
Minimum Requirements
Administrative Experience
1+ years of experience in administration, operations, HR, finance, executive support, or a related role
Experience managing multiple administrative tasks simultaneously with excellent attention to detail
Strong organizational and time management skills
Proven ability to prioritize work and meet deadlines in a fast-paced environment
Experience handling confidential information with professionalism and discretion
Finance & Operations
Experience supporting invoicing, payroll, accounting, procurement, or general business administration
Comfortable working with spreadsheets, documents, and administrative systems
Ability to maintain accurate records and organize business documentation
Experience coordinating with external vendors, accountants, or business partners is an advantage
Communication
Excellent written and verbal communication skills
Experience coordinating with both internal and external stakeholders
Strong organizational and follow-up abilities
Professional and service-oriented communication style
Business Skills
Highly organized with strong attention to detail
Ability to identify problems and proactively improve processes
Able to work independently while managing multiple priorities
Strong sense of ownership, accountability, and confidentiality
Language Requirements
English: Business Level to Native (comfortable using English as your primary working language)
Japanese: Native level or Fluent Business level sufficient to handle government procedures and administrative documentation
Preferred Qualifications
Experience supporting HR administration or payroll processes
Experience with invoicing, accounts receivable/payable, or bookkeeping support
Experience coordinating contracts, legal documentation, or compliance activities
Experience working in an international company or bilingual environment
Experience supporting executives or senior leadership
Experience improving internal processes or operational workflows
Proficiency with Google Workspace, Microsoft Office, or similar business productivity tools
Ideal Candidate Profile
Highly organized with exceptional attention to detail
Comfortable balancing multiple responsibilities across different business functions
Proactive, dependable, and able to work with minimal supervision
Takes ownership of tasks from start to finish
Enjoys improving processes and helping teams operate more efficiently
Comfortable working in both English and Japanese on a daily basis
Maintains a high level of professionalism when handling confidential business information
Application Notes
To help us evaluate your application more effectively, please include your English resume along with your application.
If available, you are also welcome to include examples of operational improvements, administrative projects, or other achievements that demonstrate your organizational skills and impact.
雇用形態正社員給与350万円 ~ 450万円
勤務時間: フレックスタイム制（コア勤務時間は、午前11時から午後4時までです。休憩1時間を除く勤務時間を前後に追加してください。）
休日・休暇: 週休2日制
募集について
本求人は転職サイトCareerCross（キャリアクロス）がIndeedへの掲載を行っております。
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