Senior Accountant

About us

Our mission is to reinvent the way people learn, starting with language.

Learning a language can change a life by opening doors to new cultures, careers, and communities. Two billion people around the world are actively trying to learn a language, but the best way to learn (one-on-one tutoring) is hard to access at scale and hasn’t been meaningfully improved in decades. Speak is building a human-level, AI-powered tutor in your pocket: a conversation-first experience that lets learners actually speak, get instant feedback, and progress through carefully designed lessons. The result is a complete path from beginner to confident speaker across multiple languages.

Speak first launched in South Korea in 2019, where Speak has now become the number one language learning app, and we now serve learners across many markets and 15+ languages. Speak is one of the world’s leading AI companies, with over $150m raised in venture investment from OpenAI, Accel, Founders Fund, Khosla Ventures, and more, with a distributed team across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.

About This Role

We're looking for a Senior Accountant to become the operational core of the Finance team in San Francisco. You'll own the day-to-day accounting while continuously improving how we work. This is a hands-on role with an unusually broad scope: we're a small team, so you'll have real impact — from systems redesign to technical accounting questions. You'll start by mastering the transactional core; from there, the role grows as fast as you do.

We’re especially excited about candidates who are AI-native and fluent in frontier tech environments. You proactively explore new tools, can quickly learn unfamiliar systems, and enjoy tightening integrations and automations to make workflows faster, cleaner, and more scalable.

This role is a great fit if you'd rather build tomorrow's workflow than run yesterday's. You see every process as a draft to keep improving, and you're excited for your job to look different every six months as Speak grows.

What You'll Be Doing

Run key parts of our 5-business-day close in Campfire (revenue recognition, recons, variance analysis, tool-to-ERP integrations)

Build and improve workflows with an AI-native mindset (automations, tighter integrations, better controls)

Own P2P and T&E end to end. You’re responsible for vendor management, transaction review, policy enforcement, and the judgment calls that don't fit the happy path. You set the quality bar and stay close to the details without doing every keystroke yourself.

Manage global contractor and creator payments

Maintain transaction integrity across the finance stack

Support the external audit with clear schedules and process documentation

Drive the execution of cost-of-revenue and internal AI initiatives — track the impact of cost optimizations and product launches, and enable AI tooling with the right guardrails and controls

Partner with internal and external stakeholders on projects with real business impact — from supporting market expansion to systems implementations and close acceleration

What We're Looking For

Minimum requirements

3–5 years in accounting or audit — whether at a high-growth startup or coming from Big 4 (or similar) and ready to go in-house

Fluency with modern finance tools. You don't need experience with our exact stack; you need to be someone who learns a new system in a week

Able to own the full-cycle P2P process

Solid understanding of US GAAP

Able to manage multiple workflows simultaneously without things falling through the cracks