Operate as the founder's force multiplier on the highest-leverage business problems — from strategy to execution. Business Tokyo Japan (Onsite) In office Full-time YoE 2 - 4 Years Apply now About OneInbox We're putting voice at the heart of how enterprises actually run. We're the production-grade voice AI platform built for Japan and Asia-Pacific. We're handling millions of real calls every month — in Japanese English Hindi and Arabic — for banks real estate firms and government services. Try OneInbox today. Why we're hiring this role We're entering a phase where decisions on pricing market entry and partnerships compound for years. The founders need a partner who can own outcomes not status reports across multiple workstreams. This is the fastest way to build the muscle to start or run your own company in 2–3 years. What you'll be doing First 30 days Sit in every founder meeting and learn the business top-to-bottom. Map the existing operating cadence — what's working what's broken what's missing. Pick one strategic project the founders are blocked on and start unblocking it. First 60 days Own end-to-end execution on 2–3 cross-functional projects (GTM pricing partnerships market entry). Build the weekly business review the founders actually want — not the one templates suggest. Lead at least one customer or partner negotiation alongside the founders. First 90 days Produce a board-ready update with no founder edits. Have shipped one durable change that will outlast you in this seat. Be the person other leaders go to when they need a problem unstuck. Who you are 2–4 years at a top-tier consulting firm investment bank growth-stage startup or PE/VC role. Comfortable owning ambiguous problems and producing a 90% answer in a week. Strong written and verbal communication — Japanese fluency is a major plus. High agency. You don't wait to be assigned work. You want to be a founder or operator at scale and you understand this role is a fast path there. Why OneInbox Generational impact build the voice layer that every APAC enterprise eventually runs on. Ownership culture you'll work close to the founders and ship in days not quarters. Kind high-bar team senior operators who've built and led at scaled companies — and are easy to work with. Strong backing institutional investors and committed enterprise customers from day one. What we offer Real ownership competitive salary and meaningful equity for early team members. Health coverage medical dental and vision for you and your dependents. Team time regular in-person off-sites across Tokyo Singapore Dubai and Bengaluru. Flexible time off take what you need when you need it. Learning budget dedicated annual L&D plus conference and travel support. Daily essentials catered meals on office days commuter support and wellness benefits. Apply for this role