Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role...

Duolingo's Monetization pillar builds the systems that fund our mission — from subscription packaging and advertising to ML-powered personalization, performance marketing, and beyond. As a Senior Engineering Manager, you'll lead a cross-functional product engineering team working on high-impact, revenue-generating systems that help Duolingo grow sustainably while keeping the product playful, transparent, and learner-first. Your team will build and scale systems across ads and paid growth — building signal and audience pipelines, powering creative experimentation, improving ad quality, optimizing budget allocation, and strengthening attribution and ROI guardrails. You'll partner closely with product, design, data science, machine learning, and marketing to define strategy and deliver results. Just as importantly, you'll create an environment where engineers do the best work of their careers — coaching, developing talent, and fostering a high-performing team culture.

🧠  You will...

• Co-lead a cross-functional pod with Product and Marketing to define strategy, success metrics, and an execution roadmap for Duolingo’s performance marketing engine, aligned to ROI guardrails and retained-user growth goals.
• Build and evolve the engineering systems that power paid growth at scale: creative experiment frameworks, audience/signal ingestion and privacy-safe list management, budget and bid optimization tooling, and reliable attribution and reporting pipelines.
• Collaborate with data science and ML partners to design experiments, apply personalization/targeting, and translate insights into product improvements and bookings growth.
• Own planning and execution for projects that directly impact revenue; identify the right team‑level metrics to optimize and protect delivery through clear milestones and risk management.
• Bring both technical and product perspectives to new ideas, enabling rapid hypothesis testing without sacrificing reliability, observability, or long‑term maintainability.
• Set and uphold engineering quality standards and practices that improve reliability, scalability, and operability across Ads systems.

✅  You have...

• Experience leading, managing, and building a team of software engineers.
• A track record of owning multi‑engineer, multi‑week technical projects to successful outcomes in a highly experimental, data‑driven environment.
• Strong product instincts and excellent written/verbal communication, with experience aligning diverse stakeholders across engineering, product, design, and analytics.
• Experience working closely with data, experimentation, or machine learning teams to inform prioritization and ship measurable impact (direct ML expertise not required).
• Demonstrated ability to raise the bar on engineering practices for reliability, scalability, and observability.

⭐  Exceptional candidates will have...

• Prior experience with advertising platforms, ad tech integrations, or building ad surfaces in mobile apps.
• Experience improving ad quality and monetization through experimentation, targeting, or programmatic levers, in partnership with business teams.
• Familiarity with COPPA‑compliant or kid‑friendly ad solutions and the trade‑offs of untargeted inventory.
• Background collaborating with sales/biz ops on direct or programmatic campaigns and translating market feedback into product improvements.
• Experience leading teams that span multiple platforms (iOS, Android, backend) and partnering on ML‑powered personalization within consumer apps.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role...

Duolingo's Monetization pillar builds the systems that fund our mission — from subscription packaging and advertising to ML-powered personalization, performance marketing, and beyond. As a Senior Engineering Manager, you'll lead a cross-functional product engineering team working on high-impact, revenue-generating systems that help Duolingo grow sustainably while keeping the product playful, transparent, and learner-first. Your team will build and scale systems across ads and paid growth — building signal and audience pipelines, powering creative experimentation, improving ad quality, optimizing budget allocation, and strengthening attribution and ROI guardrails. You'll partner closely with product, design, data science, machine learning, and marketing to define strategy and deliver results. Just as importantly, you'll create an environment where engineers do the best work of their careers — coaching, developing talent, and fostering a high-performing team culture.

🧠  You will...

• Co-lead a cross-functional pod with Product and Marketing to define strategy, success metrics, and an execution roadmap for Duolingo’s performance marketing engine, aligned to ROI guardrails and retained-user growth goals.
• Build and evolve the engineering systems that power paid growth at scale: creative experiment frameworks, audience/signal ingestion and privacy-safe list management, budget and bid optimization tooling, and reliable attribution and reporting pipelines.
• Collaborate with data science and ML partners to design experiments, apply personalization/targeting, and translate insights into product improvements and bookings growth.
• Own planning and execution for projects that directly impact revenue; identify the right team‑level metrics to optimize and protect delivery through clear milestones and risk management.
• Bring both technical and product perspectives to new ideas, enabling rapid hypothesis testing without sacrificing reliability, observability, or long‑term maintainability.
• Set and uphold engineering quality standards and practices that improve reliability, scalability, and operability across Ads systems.

✅  You have...

• Experience leading, managing, and building a team of software engineers.
• A track record of owning multi‑engineer, multi‑week technical projects to successful outcomes in a highly experimental, data‑driven environment.
• Strong product instincts and excellent written/verbal communication, with experience aligning diverse stakeholders across engineering, product, design, and analytics.
• Experience working closely with data, experimentation, or machine learning teams to inform prioritization and ship measurable impact (direct ML expertise not required).
• Demonstrated ability to raise the bar on engineering practices for reliability, scalability, and observability.

⭐  Exceptional candidates will have...

• Prior experience with advertising platforms, ad tech integrations, or building ad surfaces in mobile apps.
• Experience improving ad quality and monetization through experimentation, targeting, or programmatic levers, in partnership with business teams.
• Familiarity with COPPA‑compliant or kid‑friendly ad solutions and the trade‑offs of untargeted inventory.
• Background collaborating with sales/biz ops on direct or programmatic campaigns and translating market feedback into product improvements.
• Experience leading teams that span multiple platforms (iOS, Android, backend) and partnering on ML‑powered personalization within consumer apps.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for Inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio 

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience             

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 
Refer them! 

Speechify is committed to a diverse and inclusive workplace. 
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its Design award winner for inclusivity for 2025.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our Android app, being the most used text-to-speech app in the Play Store, we find the need for a Senior Android Engineer to help us support the new user base as well as work on new and exciting projects to push us forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Owning major features and working closely with our design team - take ownership of features inside the app and become responsible of delivering high quality features
• Shape the future of our Android team
• Own, maintain and improve reliability metrics for key features
• Participate in discussions across different teams - Product, Design, Engineering
• Review pull requests, and support other teammates
• Handle critical issues or cope with unexpected challenges 
• Take ownership of feature releases and provide nightly builds for the QA team

An Ideal Candidate Should Have

• 5+ years of software engineering experience
• Familiarity with Android components
• Experience building or contributing to at least one Android app
• Product design intuition and user empathy
• Drive to push the boundaries of Android UI/UX
• Understanding of the importance of tests and how to approach writing tests
• Self-drive to improve the app and codebase above and beyond what's outlined in the spec
• Rock solid experience with Kotlin, Kotlin Coroutines, Kotlin Flow, Dagger 2, MVVM, Clean Architecture, Background Services, Music Player Service, Android Animations, Jetpack Navigation, JUnit tests
• Excellent communication skills
• User oriented problem solving approach
• Driven with continuous feedback from leaders

Bonus:

• Experience building, maintaining, or otherwise contributing to open source projects in Android
• Experience with iOS, Web or NodeJS

Technologies we use:

• Kotlin
• Kotlin Coroutines
• Kotlin Flow
• Jetpack Navigation
• Dagger 2
• Room
• Custom Views, Canvas & Paint
• Jetpack Compose
• JUnit

What We offer:

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest growing sectors of tech, the intersection of artificial intelligence and audio.

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

The responsibilities of our Platform team include building and maintaining all backend services, including, but not limited to, payments, analytics, subscriptions, new products, text to speech, and external APIs.

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, is passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Design, develop, and maintain robust APIs including public TTS API, internal APIs like Payment, Subscription, Auth and Consumption Tracking, ensuring they meet business and scalability requirements
• Oversee the full backend API landscape, enhancing and optimizing for performance and maintainability
• Collaborate on B2B solutions, focusing on customization and integration needs for enterprise clients
• Work closely with cross-functional teams to align backend architecture with overall product strategy and user experience

An Ideal Candidate Should Have

• Proven experience in backend development: TS/Node (required)
• Direct experience with GCP and knowledge of AWS, Azure, or other cloud providers
• Efficiency in ideation and implementation, prioritizing tasks based on urgency and impact
• Preferred: Experience with Docker and containerized deployments
• Preferred: Proficiency in deploying high availability applications on Kubernetes

What We Offer

• A dynamic environment where your contributions shape the company and its products
• A team that values innovation, intuition, and drive
• Autonomy, fostering focus and creativity
• The opportunity to have a significant impact in a revolutionary industry
• Competitive compensation, a welcoming atmosphere, and a commitment to an exceptional asynchronous work culture
• The privilege of working on a product that changes lives, particularly for those with learning differences like dyslexia, ADD, and more
• An active role at the intersection of artificial intelligence and audio – a rapidly evolving tech domain

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Actively ship production code to the web products
• Work closely with your dedicated product team
• Participate in product discussions to shape the product roadmap
• Have the opportunity to work on new and exciting features that will impact millions of lives

An Ideal Candidate Should Have

• Experience. You've built and ship products that have scaled to thousands or millions of users
• Customer obsession. You are passionate about the field and have the desire to build high quality product that serves customer needs
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
• Tech Stack: Vanilla JS, ReactJS, Redux, Firebase, Typescript

What We Offer

• A fast-growing environment where you can help shape the culture
• An entrepreneurial crew that supports risk, intuition, and hustle
• A hands-off approach so you can focus and do your best work
• The opportunity to make an impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience

Think you’re a good fit for this job?                  

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

Below you can find more information about the teams we're hiring for:

Subscription Crossgrades Team:
As an Android engineer on the Subscription Crossgrades Team, you’ll build features that help learners discover and subscribe to the Duolingo plan that best fits their goals. Our team’s mission is to make subscription purchases convenient, compelling, and clear, so that learners can unlock Duolingo’s most powerful tools for long-term success. You’ll work on improving how we present subscription options across the app, highlight the value of our offerings, and craft delightful, high-impact conversion moments. We’re looking for engineers who are passionate about creating seamless, user-centered purchase flows and subscription experiences.

Current User Retention Team:
As an Android engineer on the Current User Retention team, you will build and optimize features that help learners stick with their language goals day after day. You will work on several high-profile features, including Streaks and Quests, that make it motivating and rewarding for learners to keep coming back to learn on Duolingo. You’ll collaborate with product and design partners to ship experiment-driven features end-to-end. You’ll craft polished in-app experiences and use data to understand how your work shapes learner behavior at scale. We’re looking for engineers who are excited about rapid experimentation and building delightful experiences that keep learners engaged.

🧠  You will...

• Collaborate on software projects with product design and backend aspects
• Develop, release, and maintain native Android application features in Kotlin
• Mentor and set technical direction for junior engineers on the team
  
  

✅  You have...

• A Bachelor’s degree in Computer Science or a related technical field
• Programming experience in Kotlin on Android
• The ability to communicate technical issues effectively to technical and non-technical stakeholders
  
  

⭐  Exceptional candidates will have...

• Strong programming experience building reactive Android apps
• Demonstrated self-direction, with a desire both to learn new techniques and mentor others
• Experience designing clean and maintainable APIs
• Experience writing unit tests and testable code

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role

We are hiring for multiple levels for any one of the following teams.  Leveling is usually determined once all interviews are completed.

Math Team

As an iOS engineer on the Math team, you will help build the technology that changes how people around the world learn Math. The features that you ship will help learners to develop core math skills in a fun, engaging way. We’re looking for engineers who love building new products and features.

Notifications Team
As an iOS engineer on the Notifications team, you will build features that empower learners to build long-term habits by improving how we schedule, personalize, and deliver notifications. You will design and implement meaningful notification experiences while collaborating with backend, data science, and product teams. Notifications are fundamental to Duolingo, and we’re looking for engineers who are energized about experimenting and shipping features end-to-end.

Core App Performance Team
The Core App Experience team is in charge of improving the user experience in core flows of the iOS and Android apps to drive user growth. Sitting in between the intersection of technical and product work, you will drive technical improvements in app open, session start and end, and improving the offline experience. We're looking for engineers who are willing to deep dive into the codebase and provide their suggestions on how to improve the everyday experience of our users.

🧠  You will...

• Collaborate on software projects with product design and backend aspects
• Develop, release, and maintain native iOS applications, primarily in Swift
• Mentor and set technical direction for junior engineers across the company

✅  You have...

• A Bachelor’s degree in Computer Science or a related technical field
• A solid foundation in computer science with strong competencies in data structures, algorithms, and software design
• Programming experience in Swift

⭐  Exceptional candidates will have...

• Strong proficiency in Swift, with proven ability to build and maintain production-level applications
• Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks
• Experience designing clean and maintainable APIs
• Experience with multithreaded programming
• Experience writing unit tests and testable code
• Knowledge of iOS SDK performance tools and optimization techniques

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. 

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role

Core App Performance Team
The Core App Experience team is in charge of improving the user experience in core flows of the iOS and Android apps to drive user growth. Sitting in between the intersection of technical and product work, you will drive technical improvements in app open, session start and end, and improving the offline experience. We're looking for engineers who are willing to deep dive into the codebase and provide their suggestions on how to improve the everyday experience of our users.

🧠  You will...

• Collaborate on software projects with product design and backend aspects
• Develop, release, and maintain native iOS applications, primarily in Swift
• Mentor and set technical direction for junior engineers across the company

✅  You have...

• A Bachelor’s degree in Computer Science or a related technical field
• A solid foundation in computer science with strong competencies in data structures, algorithms, and software design
• Programming experience in Swift

⭐  Exceptional candidates will have...

• Strong proficiency in Swift, with proven ability to build and maintain production-level applications
• Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks
• Experience designing clean and maintainable APIs
• Experience with multithreaded programming
• Experience writing unit tests and testable code
• Knowledge of iOS SDK performance tools and optimization techniques

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and even though we've made a lot of headway, we still have work to do — and that’s where you come in!

Duolingo’s designers care about creating high-quality experiences that look and feel fun. From animators to writers, product designers to researchers, Design brings purpose, feeling, and delight to every interaction with our brand, inside the app and out. As a designer, you’ll join a culture of creativity and craft, where we have a high bar for excellence and an endless curiosity about how to bring more unexpected quirk and fun to the pursuit of learning. 

Join us in our mission to develop education for our half a billion (and growing!) learners around the world.

About the Role

Duolingo’s Creative Technologists sit at the intersection of design, animation, and engineering—turning ambitious ideas into interactive, production-ready experiences that reach millions of learners.  As a Creative Technology Manager, you’ll both manage a team of Creative Technologists and directly elevate how we use art, motion, and interactivity to create delightful, performant, and scalable learning experiences. You’ll lead the prototyping of new ideas, build production-ready systems, and shape the tooling that enables teams to move faster. This role reports to the Senior Manager of Creative Technology and is based in Pittsburgh, PA or New York, NY.

🧠 You will... 

• Act as the technical lead for cross-functional partners (product designers, product managers, and engineers) to unblock bold ideas and drive them from concept through delivery
• Develop your team’s skills and careers, giving clear, actionable feedback and coaching toward greater scope and impact
• Create and evolve complex animated UI using Rive or similar technologies for high-visibility features across the app
• Collaborate directly with iOS and Android engineers to design asset functionality, troubleshoot, and optimize performance
• Shape our design and animation ecosystem (Rive, Figma, Unity, internal tools)  by developing tools, automations, and systems that scale high-quality output

✅ You have... 

• 5+ years in roles adjacent to creative technology (e.g., technical animation, gameplay scripting, CG supervision, pipeline/TD work) with proven people management or leadership experience.
• A portfolio or demo reel that demonstrates: 
• High-quality visuals delivered within real-world performance constraints
• Reducing complexity while achieving product goals
• Systems thinking (e.g., reusable animation or interaction systems)
• Tooling that meaningfully improves team workflows
• Prototyping savvy and end-to-end problem solving
• Strong programming or scripting skills (e.g., Python, C++, or similar).
• Excellent communication skills, including fluency in design-to-engineering handoffs, and communicating technical constraints to non-technical partners.
• Experience operating in highly ambiguous environments and independently driving projects with cross-functional dependencies.
• Ability to work from or relocate to Pittsburgh, PA or New York, NY.

⭐ Exceptional candidates will have... 

• Experience creating interactive animation for mobile products at scale
• Proficiency with Rive for building UI and designing complex user interactions
• A strong motion and design sensibility across 3D or 2D animation pipelines (Maya, Blender, Houdini, or Toon Boom, etc.)
• Understanding of game design principles, especially for learning contexts
• A passion for the craft and a care for their people.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and even though we've made a lot of headway, we still have work to do — and that’s where you come in!

Duolingo’s designers care about creating high-quality experiences that look and feel fun. From animators to writers, product designers to researchers, Design brings purpose, feeling, and delight to every interaction with our brand, inside the app and out. As a designer, you’ll join a culture of creativity and craft, where we have a high bar for excellence and an endless curiosity about how to bring more unexpected quirk and fun to the pursuit of learning. 

Join us in our mission to develop education for our half a billion (and growing!) learners around the world.

About the Role

Duolingo’s Creative Technologists sit at the intersection of design, animation, and engineering—turning ambitious ideas into interactive, production-ready experiences that reach millions of learners.  As a Creative Technology Manager, you’ll both manage a team of Creative Technologists and directly elevate how we use art, motion, and interactivity to create delightful, performant, and scalable learning experiences. You’ll lead the prototyping of new ideas, build production-ready systems, and shape the tooling that enables teams to move faster. This role reports to the Senior Manager of Creative Technology and is based in Pittsburgh, PA or New York, NY.

🧠 You will... 

• Act as the technical lead for cross-functional partners (product designers, product managers, and engineers) to unblock bold ideas and drive them from concept through delivery
• Develop your team’s skills and careers, giving clear, actionable feedback and coaching toward greater scope and impact
• Create and evolve complex animated UI using Rive or similar technologies for high-visibility features across the app
• Collaborate directly with iOS and Android engineers to design asset functionality, troubleshoot, and optimize performance
• Shape our design and animation ecosystem (Rive, Figma, Unity, internal tools)  by developing tools, automations, and systems that scale high-quality output

✅ You have... 

• 5+ years in roles adjacent to creative technology (e.g., technical animation, gameplay scripting, CG supervision, pipeline/TD work) with proven people management or leadership experience.
• A portfolio or demo reel that demonstrates: 
• High-quality visuals delivered within real-world performance constraints
• Reducing complexity while achieving product goals
• Systems thinking (e.g., reusable animation or interaction systems)
• Tooling that meaningfully improves team workflows
• Prototyping savvy and end-to-end problem solving
• Strong programming or scripting skills (e.g., Python, C++, or similar).
• Excellent communication skills, including fluency in design-to-engineering handoffs, and communicating technical constraints to non-technical partners.
• Experience operating in highly ambiguous environments and independently driving projects with cross-functional dependencies.
• Ability to work from or relocate to Pittsburgh, PA or New York, NY.

⭐ Exceptional candidates will have... 

• Experience creating interactive animation for mobile products at scale
• Proficiency with Rive for building UI and designing complex user interactions
• A strong motion and design sensibility across 3D or 2D animation pipelines (Maya, Blender, Houdini, or Toon Boom, etc.)
• Understanding of game design principles, especially for learning contexts
• A passion for the craft and a care for their people.

About Us

Are you ready to build the future of supply chain? At Gather AI, we’re not just creating software; we’re pioneering a new era of warehouse intelligence. We’ve developed a groundbreaking, vision-powered platform that uses autonomous drones and existing equipment to capture real-time data, completely digitizing workflows that have historically been manual and error-prone. This means facilities operate smarter, safer, and more efficiently, ultimately redefining “on-time, in full” delivery.

If you’re looking for an opportunity to contribute to truly transformative technology and make a significant impact in a vital industry, Gather AI is the place for you. We’re leading the charge in the rapidly evolving robotics industry, and we invite you to join us in reshaping the global supply chain, one intelligent warehouse at a time.

About the Team

You’ll work closely with support engineers, backend and platform teams, iOS and Android engineers, and customer-facing teams. This role sits at the intersection of mobile development and production system ownership — giving you broad exposure across mobile, backend, and operations rather than a narrow feature track.

About the Role

We are looking for a Mobile Engineer to own mobile-side investigation, support, and systems reliability for our MHEV (Material Handling Equipment Vision) product. You will be the go-to engineer for customer-reported mobile issues, becoming a deep expert on system behavior across mobile apps, backend services, and infrastructure.

This is a high-trust, high-responsibility role with a clear growth path into senior or platform engineering. If you want real production ownership, direct customer impact, and broad system exposure, this role is for you.

What You’ll Do

• Own mobile-side investigation and resolution for customer-reported issues — tracing problems across mobile apps, backend services, and infrastructure
• Support live MHEV production systems with rapid issue resolution and proactive reliability improvements
• Improve debugging tools, logs, documentation, and runbooks to reduce mean time to resolution across the team
• Support legacy app maintenance and the transition to current-generation apps
• Collaborate with backend and platform engineers to identify and address root causes at the system level
• Build domain expertise in MHEV system behavior to serve as a reliable resource for support and engineering teams