Senior/Software Engineer II, Android
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 Android Engineers at various levels, below you can find more information about the teams we're hiring for:
Subscriber Conversion Team:
The Subscriber Conversion team owns the surfaces that turn learners into subscribers and keep them subscribed including in-app hooks and paywalls, the purchase flow, pricing and packaging, payments, and subscription partnerships. The team is highly experimental, running a steady stream of A/B tests across iOS, Android, backend, and web, and balances quick optimizations on high-traffic surfaces with larger bets like new tiers and partner offerings.
Time Spent Learning Team:
The Time Spent Learning team is dedicated to motivating learners to spend more time engaging meaningfully with the Duolingo app. Our mission is to grow genuine, sustained learning time by designing and iterating on the mechanics that motivate consistent, high-effort practice so learners make real progress toward fluency each day. As a small, cross-functional team of product, design, and engineering, we own a metric that shapes learning outcomes for millions of users and get to shape the Duolingo experience.
🧠 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
The offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation. We encourage you to talk with your recruiter for more information related to compensation for this role!
Benefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.
Job Alerts: Sign up for job alerts here.
Accommodations: We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact [email protected].
Equal Employment Opportunity: Duolingo is proud to be an Equal Employment Opportunity employer. We do 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.
Fraud Warning: Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we’ll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.
By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.
As published by greenhouse
First Name, Last Name, Email, Phone, Resume/CV, Cover Letter, Location
- Preferred First Name
- How do you pronounce your name? (e.g., 'An-na' or 'Ah-na') optional
- LinkedIn Profile optional
- Are you willing to work from the office location of the job? choose one
- Are you authorized to work lawfully in the United States for Duolingo? choose one
- Will you now, or in the future, require sponsorship (i.e. H-1B visa, etc.) to legally work in the U.S.? choose one
- If so, are you eligible or currently in a period of Optional Practical Training (OPT)? choose one
- After the OPT, are you eligible for a 24-month OPT extension or are currently in a 24-month OPT extension based upon a degree from a qualifying U.S. institution in Science, Technology, Engineering, or Mathematics after the Optional Practical Training (OPT)? choose one
- If you're less than 3 years out of school, what is your undergraduate GPA?
- Where did you hear about this job? choose one
- How has AI changed the way you approach your work? written answer
- How would you describe your current level of experience using AI tools or technologies in your work? Select the option that best fits. choose one
- As part of the interview process, you will go through a series of technical assessments. What is your preferred coding language? choose one