Engineering Manager, B2B

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

As an Engineering Manager on our Speak for Business (S4B) team, you will lead the initiatives that build and scale our B2B product offerings for global organizations. You’ll work closely with cross‑functional stakeholders across Product, Design, Sales, and other engineering teams to deliver high‑impact solutions for our business customers. You will manage a team of engineers, guide the technical strategy for a variety of platforms—including our mobile app, L&D web portal, and custom integrations—and help shape a product used by millions of learners worldwide.

What you’ll be doing

Lead the engineering strategy and execution for the S4B roadmap, delivering features and infrastructure that serve our business clients.

Oversee the development of Speak's B2B offering across all surfaces, including our core mobile app, the web‑based L&D portal, and custom solutions for enterprise customers.

Guide and mentor a team of high‑performing engineers, fostering their technical and career development.

Partner with Product and Design to understand the complex needs of global B2B customers and help the team navigate technical trade‑offs and priorities.

Collaborate with cross‑functional engineering teams on developing and integrating AI‑powered features, such as our assessment tools.

Direct the technical implementation of custom integrations with third‑party systems, including HRIS / HR platforms, to ensure seamless customer onboarding and data management.

Collaborate with infrastructure and data teams to ensure our B2B platforms are robust, scalable, and secure.

What we’re looking for

7+ years of industry experience, including 2+ years in an engineering leadership role.

A strong technical background with hands‑on experience in full‑stack development and familiarity in our stack (TypeScript, React, Node.js, Postgres, Big Query).

Experience building and scaling products for B2B or enterprise customers, preferably on a global scale.

Proven ability to manage and mentor high‑performing engineering teams, providing clear direction and support.

Strong product intuition and a demonstrated ability to collaborate effectively with product managers, designers, and other cross‑functional partners.

Excellent communication, leadership, and stakeholder management skills, with the ability to articulate technical concepts to both technical and non‑technical audiences.

Bonus : Experience with AI / ML‑powered product features.

Bonus : Experience developing custom integrations for enterprise clients.

Why work at Speak

Join a fantastic, tight‑knit team at the right time : we're growing very quickly, we've most recently raised our Series C from some of the top investors in the valley, and we've achieved product‑market fit in our initial markets. You'd join at a magical time when a single person could significantly change the course of the company.

Do your life's work with people you’ll love working with : we care strongly about our craft and want every person at Speak to feel like they're growing every day. We believe in the idea that working with people you both enjoy and have respect for makes everything better. We hire thoughtfully and only work with people we admire deeply.

Global in nature : We're live in over 40 countries and launching in a number of new markets soon. We have dedicated offices in San Francisco, Ljubljana, Seoul, and Tokyo, and you’ll have the opportunity to talk to users in each of these regions on a regular basis as well as travel.

Impact people's lives in a major way : Learning a language is one of the single most life‑changing skills one can learn, and right now 99% of people never achieve their goal because the process is broken. We’re helping millions of people achieve their goals and improve their lives.

Speak does not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

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