{"id":81518,"url":"https://alion.io/job/duolingo-blog-seniorsoftware-engineer-ii-android","title":"Senior/Software Engineer II, Android","company":{"id":19161,"name":"Duolingo","domain":"duolingo.com","url":"https://alion.io/company/duolingo-blog","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":86,"open_postings":14,"ghost_share":0,"stale_share":0.571,"repost_share":0,"time_to_fill_p50_days":45,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States","Pittsburgh, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":153000,"max":207000,"currency":"USD","period":"year","gross":null,"usd_annual":207000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Kotlin","optional":false},{"name":"A/B Testing","optional":true}],"status":"live","first_seen_at":"2026-07-10T17:53:28Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-18T07:01:15Z","board_verified":true,"closed_at":null,"days_open":99,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":99},"description":"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!\nAt 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. \nJoin our life-changing mission to develop education for our half a billion (and growing!) learners around the world.\nAbout the Role...\nWe are hiring for Android Engineers at various levels, and below you can find more information about the teams we're hiring for:\nSubscriber Conversion Team:\nThe 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.\nIn-App Purchases Team:\nThe IAPs team owns Duolingo’s in-app purchase business: the gem economy, the shop, and avatar cosmetics and collectibles. You’ll build purchase flows and the systems behind them, then prove out what works through experimentation. Avatar cosmetics and collectibles are our new initiatives to drive DAU aligned monetization.\nMath Discovery:\nThe Math Progress team builds the experiences that connect Duolingo's math lessons into a cohesive learning journey. We help learners find the right content by improving how they navigate topics, grades, and the course path, and we make their learning progress visible through mastery signals, scored reviews, and personalized practice. The team works cross-functionally and experiments rapidly to help learners build momentum and continually strengthen their math skills.\n\n You will...\nCollaborate on software projects with product design and backend aspects\nDevelop, release, and maintain native Android application features in Kotlin\nMentor and set technical direction for junior engineers on the team\n You have...\nA Bachelor’s degree in Computer Science or a related technical field\nProgramming experience in Kotlin on Android\nThe ability to communicate technical issues effectively to technical and non-technical stakeholders\n⭐ Exceptional candidates will have...\nStrong programming experience building reactive Android apps\nDemonstrated self-direction, with a desire both to learn new techniques and mentor others\nExperience designing clean and maintainable APIs\nExperience writing unit tests and testable code\nThe 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!\nSalary Range:\n$153,000—$207,000 USD\nBenefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.\nJob Alerts: Sign up for job alerts here.\nAccommodations: 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 .\nEqual 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.\nFraud 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.\nBy applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.","description_format":"text","description_chars":4740,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Language Learning","E-learning"],"lifecycle":[{"event":"open","at":"2026-07-10T17:53:28Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 104 · green card filings: 19","filings_12m":104,"filings_prev_12m":41,"green_card_filings_12m":19,"median_offered_wage_usd":158638,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":76}],"liveness":{"score":14,"band":"cold","label":"Long shot","p_open":1,"p_active":0.516,"p_room":0.28,"age_days":98,"expected_fill_days":45,"reasons":["seen:8","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":207000,"is_top_pay":true},"html_url":"https://alion.io/job/duolingo-blog-seniorsoftware-engineer-ii-android","json_url":"https://alion.io/job/duolingo-blog-seniorsoftware-engineer-ii-android.json","meta":{"generated_at":"2026-10-18T09:57:53Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":14764,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":19161},"rest":"https://alion.io/mcp/rest/get_company?id=19161"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fduolingo-blog-seniorsoftware-engineer-ii-android"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fduolingo-blog-seniorsoftware-engineer-ii-android"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fduolingo-blog-seniorsoftware-engineer-ii-android"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/duolingo-blog-seniorsoftware-engineer-ii-android\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fduolingo-blog-seniorsoftware-engineer-ii-android"}]}