Chief of Staff

Job Summary

We are seeking a Chief of Staff to support the CEO in scaling the company. This is a part-time contract role (at least 20 hours per week, flexible scheduling) with a clear path to full-time conversion.

Responsibilities

• Drive strategic planning: Own the quarterly planning process, track KPIs, and align the company on priorities.
• Fix what’s broken: Identify and implement solutions to bottlenecks in operations, communication, and shipping processes.
• Lead cross-functional projects: Take ownership of high-priority initiatives that span multiple teams, such as market analysis, product launches, and fundraising preparations.
• Maximize the CEO’s time: Manage priorities, prepare materials for board meetings and investor conversations, and handle external engagements.
• Support hiring and culture: Help recruit key roles and maintain a strong, unified culture across both the San Francisco and Tokyo teams.
• Build the information edge: Conduct research on competitors, market trends, and potential partnerships to inform strategic decisions.

Requirements

• 2+ years of experience in a high-performance environment, such as top-tier management consulting, investment banking, or Chief of Staff at a high-growth startup.
• Exceptional communication skills to manage multiple stakeholders and deliver under pressure.
• Strong analytical and financial modeling skills.
• Native or bilingual proficiency in English.

Bonus

• Prior experience as a founder or early employee at a venture-backed startup.

Qualifications

• Ownership mindset: Solves problems proactively and treats the role like your company.
• Adaptability: Comfortable with ambiguity and able to pivot between strategic, financial, and operational challenges.
• Discretion: Operates with integrity and keeps confidences.

About the Role

Jinba automates enterprise workflows through chat, enabling teams to vibe-code AI workflows without requiring engineering expertise. It serves 40,000+ daily enterprise users at major financial institutions including Fortune Global 500 companies in banking, insurance, and manufacturing.