{"id":2472775,"url":"https://alion.io/job/level-senior-full-stack-mobile-engineer","title":"Senior Full-Stack Mobile Engineer","company":{"id":4417780,"name":"Level","domain":"level.me","url":"https://alion.io/company/level-14","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bellevue, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":97500,"max":243750,"currency":"USD","period":"year","gross":null,"usd_annual":243750},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ArgoCD","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Combine","optional":false},{"name":"Docker","optional":false},{"name":"gRPC","optional":false},{"name":"Java","optional":false},{"name":"Jetpack Compose","optional":false},{"name":"Kotlin","optional":false},{"name":"Kotlin Coroutines","optional":false},{"name":"Kotlin Multiplatform","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linkerd","optional":false},{"name":"Modularization","optional":false},{"name":"MVI","optional":false},{"name":"MVVM","optional":false},{"name":"Offline-First","optional":false},{"name":"Rest API","optional":false},{"name":"State Management","optional":false},{"name":"Swift","optional":false},{"name":"SwiftUI","optional":false},{"name":"Terraform","optional":false},{"name":"TestFlight","optional":false},{"name":"TypeScript","optional":false},{"name":"UIKit","optional":false},{"name":"Crashlytics","optional":true},{"name":"Dart","optional":true},{"name":"Flutter","optional":true},{"name":"Git","optional":true},{"name":"GitHub Actions","optional":true},{"name":"Grafana","optional":true},{"name":"JavaScript","optional":true},{"name":"OpenTelemetry","optional":true},{"name":"React Native","optional":true},{"name":"React.js","optional":true},{"name":"Sentry","optional":true},{"name":"SigNoz","optional":true}],"status":"live","first_seen_at":"2026-05-22T16:28:46Z","employer_posted_date":"2026-05-22","last_verified_at":"2026-10-14T00:07:51Z","board_verified":true,"closed_at":null,"days_open":144,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":144},"description":"Summary\nLevel is a learning technology company dedicated to helping students build real academic and life skills with confidence and joy. We combine proven curriculum principles with world class interactive design to make meaningful practice something students want to come back to, not something they struggle through.\nWe support what teachers, schools, and parents are already doing by increasing student engagement with high quality, standards-aligned practice that reinforces classroom learning.\nAs a Senior Full-Stack Mobile Engineer on the Platform team, you will own end-to-end slices of Level's mobile experience - from the iOS and Android clients through the API layer and into the services that power identity, onboarding, content delivery, and engagement on mobile devices. You'll write production native code on at least one mobile platform, work in cross-platform code where it makes sense, and design and implement the backend services that sit behind them. We are hiring senior engineers specifically because we want people who can move fluently across the whole stack and make sound trade-offs at every layer.\nYour work will directly impact how students experience Level on mobile, and how quickly the rest of the engineering organization can ship mobile-enabled features.\nWhat You Will Do\nFeature Development\nDesign, build, and ship user-facing mobile features end-to-end - native client work on iOS and/or Android, plus the backend services and APIs that power them.\n\nImplement clean, readable, testable code that follows platform best practices on the client and Level's service conventions on the backend.\n\nTake responsibility for features from initial design through release and ongoing maintenance.\n\nArchitecture & Cross-Platform Decisions\nEvolve module boundaries, navigation, state management, and offline behavior in the mobile clients.\n\nMake sharp build-vs-share decisions between fully native code and cross-platform approaches (Kotlin Multiplatform, shared protobuf contracts, WebViews) based on real product and engineering trade-offs.\n\nDesign and operate backend services (Kotlin or Java on the JVM, or TypeScript) that back the mobile experience - identity, content, sync, telemetry.\n\nPerformance, Reliability & Security\nDefine and own reliability targets (SLOs/SLIs) for the services you own; implement structured logging, metrics, and tracing.\n\nProfile, debug, and optimize performance on device - startup, memory, battery, network - and on the backend - latency, throughput, cost.\n\nApply mobile security fundamentals: secure storage (Keychain / Keystore), biometric auth, transport security, and handling of sensitive user data, with particular care for student data and K-12 privacy requirements.\n\nParticipate in incident response and post-mortems for what you own.\n\nCollaboration & Delivery\nPartner with product, design, web/backend engineers, infrastructure, and QA to translate product requirements into pragmatic mobile + backend designs and ship them iteratively.\n\nParticipate actively in planning, technical discussions, code reviews, and release processes - contributing practical input on feasibility, trade-offs, and implementation details.\n\nOwn the release pipeline for the platforms you ship on (App Store Connect / TestFlight or Play Console), including staged rollouts and production monitoring.\n\nCode Quality & Technical Ownership\nEnsure high standards of performance, stability, and test coverage on the mobile codebase and the services behind it; partner with our DevProd lead on mobile test strategy in CI.\n\nActively contribute to improving app architecture, technical foundations, and developer experience.\n\nIdentify and address technical debt, production issues, and scalability concerns - leave the code better than you found it.\n\nMentor mid-level and associate engineers through pairing, code reviews, and technical guidance; help shape the conventions the rest of the team adopts.\n\nQualifications\nNeed to Have:\n5+ years of professional software engineering experience, including 3+ years of production native mobile development on at least one platform (Swift / SwiftUI / UIKit on iOS, or Kotlin / Jetpack Compose on Android).\n\nAt least one shipped mobile app at meaningful scale that you contributed to end-to-end (App Store or Play Store releases, production telemetry, real users).\n\nSolid working knowledge of the other mobile platform (iOS or Android, whichever isn't your primary) - enough to read, review, and contribute to code there.\n\nStrong backend proficiency in Kotlin or Java on the JVM (Kotlin is Level's primary backend language) or TypeScript for shared platform libraries and tooling; demonstrated experience designing and operating long-lived backend services. (Kotlin shared between Android and backend is a clear plus.)\n\nStrong understanding of mobile application architecture and common patterns - MVVM, MVI, Clean Architecture, and modularization - and the trade-offs between them.\n\nDeep understanding of mobile fundamentals - concurrency (async/await, coroutines, Combine, Flow), lifecycle management, memory and battery considerations, networking, persistence, offline-first behavior, and accessibility (VoiceOver / TalkBack, Dynamic Type / large fonts).\n\nSolid grasp of HTTP, REST, and gRPC + protobuf - Level's primary service-contract framework.\n\nWorking knowledge of AWS, containers (Docker / Kubernetes), and CI/CD pipelines as a consumer. Familiarity with Linkerd, ArgoCD, Terraform is a plus.\n\nKnowledge of mobile security fundamentals - secure key/credential storage, biometric authentication, transport security - and experience handling sensitive user data in production.\n\nExperience working with Git, CI/CD pipelines (GitHub Actions), and collaborative code-review processes.\n\nStrong testing discipline - unit, integration, UI / instrumentation - and a track record of partnering with QA/DevProd to ship reliably.\n\nOwnership mindset, strong problem-solving skills, and clear written and verbal communication with cross-functional teams.\n\nNice to Have:\nDirect production experience with both iOS and Android, not just literacy.\n\nExperience with cross-platform mobile - Kotlin Multiplatform, React Native, Flutter - and a clear point of view on when it's the right tool.\n\nFamiliarity with App Store and Play Console review processes, privacy manifests, Data Safety declarations, and family-friendly policy requirements.\n\nFamiliarity with OpenTelemetry and modern observability stacks (SigNoz - Level's stack - Grafana); mobile crash reporting (Sentry / Crashlytics).\n\nBackground in EdTech, K-12, or other domains with strong privacy and accessibility requirements (FERPA, COPPA, WCAG).\n\nExposure to Backstage, internal developer platforms, or other developer productivity surfaces.\n\nContributions to relevant open-source projects (mobile frameworks, cross-platform libraries).","description_format":"text","description_chars":6865,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-13T20:21:59Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.264,"p_room":0.28,"age_days":144,"expected_fill_days":22,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-14T03:45:28Z"},"pay":{"stated_usd_annual":243750,"is_top_pay":true},"html_url":"https://alion.io/job/level-senior-full-stack-mobile-engineer","json_url":"https://alion.io/job/level-senior-full-stack-mobile-engineer.json","meta":{"generated_at":"2026-10-14T03:45:28Z","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":5742,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":4417780},"rest":"https://alion.io/mcp/rest/get_company?id=4417780"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flevel-senior-full-stack-mobile-engineer"},{"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%2Flevel-senior-full-stack-mobile-engineer"},{"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%2Flevel-senior-full-stack-mobile-engineer"},{"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/level-senior-full-stack-mobile-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flevel-senior-full-stack-mobile-engineer"}]}