Engineering Manager, Growth

About us

Our mission is to reinvent the way people learn, starting with language. We begin by teaching the next billion people English, Spanish, and French.

English is the global language of business, culture, and communication, and over 1.5 billion people around the world are actively trying to learn right now. Others dream of communicating with the half-billion native Spanish speakers across the globe. The problem is that it's nearly impossible to learn tospeak a language without constant access to a speaking partner. Grammar and vocab apps don't really help – you need to actuallyconverse with someone.

Speak is on a journey to fix this. We're creating an AI-powered experience that replicates the flow of a conversation,without needing a human on the other end. The goal is to make it radically more accessible to be able to have conversations in a foreign language and eventually help hundreds of millions of people gain fluency who otherwise wouldn't be able to.

We started on this journey over five years ago and we've still got a long ways to go. We're thoughtfully adding new team members only when we think they can truly play a big role in our mission.

Speak launched first in South Korea where we have quickly grown to become the top grossing education app in the country. We have now delivered this winning product to more than 40 countries globally and are continuing to expand to more markets in the coming months. The company is well funded, and as of December 2024, we've reached a $1B valuation with our Series C round, through key partners like Accel, OpenAI, Founders Fund, Y Combinator, Khosla Ventures, Lachy Groom, Josh Buckley, and more. We’re a team of more than 90 based throughout San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.

About this role

As an Engineering Manager, Growth on Speak’s engineering team, you will lead initiatives that drive user acquisition, activation, retention, and monetization. You’ll work closely with cross-functional stakeholders across Product, Design, and Data to identify high-leverage opportunities, run experiments, and iterate quickly. You will manage a team of engineers, guide technical strategy, and help shape a product used by millions globally.

What you’ll be doing

• Lead the engineering strategy for growth-related initiatives, such as onboarding optimization, pricing experimentation, lifecycle messaging and paywall iteration

• Partner with Product and Data to design and run A/B tests focused on conversion, retention, and engagement

• Oversee technical implementation of monetization experiments, including paywalls, subscriptions, pricing, and offer logic

• Guide and mentor a team of engineers through technical and career development

• Collaborate with infra and data teams to ensure our experimentation frameworks and analytics pipelines are robust and scalable

• Support international growth through localization, regionalized feature development, and launch-readiness efforts

What we’re looking for

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

  • bonus: experience in growth-focused product teams

  • bonus: experience scaling products to millions of users globally

• Strong technical background with hands-on experience in backend or mobile systems

• Deep understanding of experimentation frameworks, data instrumentation, and growth loops

• Experience managing and mentoring high-performing engineering teams

• Familiarity with monetization platforms like RevenueCat, Google Play Store or StoreKit

• Strong product intuition and ability to collaborate cross-functionally with PMs, Designers, and Analysts

• Excellent communication, leadership, and stakeholder management skills

• Comfortable working in a fast-paced, iterative environment with a strong bias for action

Why work at Speak

1. 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.

2. 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.

3. 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.

4. 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.