Remote App Developer jobs – Full‑Time Senior Mobile Engineer (iOS/Android) – $120k‑$150k – Windsor town, Colorado – React Native, Kotlin, Swift, AWS Amplify

TITLE: Remote App Developer jobs – Full‑Time Senior Mobile Engineer (iOS/Android) – $120k‑$150k – Windsor town, Colorado – React Native, Kotlin, Swift, AWS Amplify --- Who we are We’re a midsized SaaS company that grew from a garage project to a platform serving more than 1.5 million monthly active users. Our headquarters live in Windsor town, Colorado, but the product team has been fully distributed for the past three years. We don’t call ourselves “fast‑growing” in a press release; we simply have 12 engineers, three product managers, and a design lead who all meet on Zoom three times a week to review the same backlog we’ve been iterating on since day one. Why this role exists now In Q3 we released version 5.0 of our flagship mobile experience, which added a real‑time collaboration feature that doubled the average session length for users in Windsor town, Colorado. The new feature also introduced a handful of performance regressions that our monitoring tools flagged in the last sprint. We need a senior mobile engineer who can own the end‑to‑end health of our iOS and Android codebases while keeping the release cadence at a predictable four‑week sprint cycle. What you’ll be doing – day in the life - Own a slice of the product – You’ll be the go‑to person for everything related to push notifications and in‑app messaging. That means designing the data flow through AWS Amplify, writing GraphQL mutations, and making sure the delivery SLA stays at 99.9 % for users in Windsor town, Colorado and beyond. - Ship code fast, ship it right – Our CI pipeline runs on CircleCI and uses Docker containers to build both the iOS and Android binaries. You’ll write the pipeline scripts, add unit‑test coverage targets (we run at 85 % on average), and approve pull requests that meet the checklist we’ve honed over the last 18 months. - Collaborate with design – The design lead works with Figma files that they hand off to the dev team. You’ll translate those prototypes into native components using SwiftUI for iOS and Jetpack Compose for Android, while also maintaining a shared React‑Native bridge for cross‑platform screens. - Mentor junior engineers – Two of our developers are on a junior track. You’ll pair‑program with them during the first two weeks of each sprint, run a short “tech talk” on topics like “Effective Use of Firebase Crashlytics” and leave code reviews that focus on readability over cleverness. - Monitor production health – Our dashboards in Datadog and Firebase show a crash‑free rate of 96 % across all devices. You’ll set up alerts for any dip below 95 % and dive into logs with Postman and the AWS CloudWatch console to trace the root cause. Our stack (you’ll be comfortable with at least 8 of these) - Languages & frameworks: Swift (5.7+), Kotlin (1.8+), React Native (0.71+), SwiftUI, Jetpack Compose - Backend integration: GraphQL (Apollo), REST (Axios), AWS Amplify, Firebase (Auth, Firestore, Crashlytics) - CI/CD: CircleCI, Docker, Fastlane for iOS, Gradle for Android - Version control & collaboration: Bitbucket, GitHub, JIRA, Confluence - Design hand‑off: Figma, Zeplin (occasionally) - Testing: XCTest, Espresso, Detox, Jest for React Native unit tests What success looks like - Performance: Reduce the average app start‑up time from 1.8 seconds to under 1.2 seconds for 80 % of devices in Windsor town, Colorado within the first two quarters. - Reliability: Keep the push‑notification SLA at 99.95 % and maintain a crash‑free rate above 97 % for the next six releases. - Feature velocity: Deliver at least two major feature toggles per sprint cycle, each with full test coverage and documentation in Confluence. - Team health: Junior engineers report a 30 % increase in confidence scores on the quarterly survey after your mentorship sessions. Who you are - Experience: 5‑7 years building production mobile apps, with at least 3 years of shipping iOS or Android releases to the App Store or Google Play. You have a portfolio of apps that have reached at least 10,000 downloads each. - Technical depth: You can write a performant list view in SwiftUI, set up a GraphQL subscription, and debug a memory leak using Instruments in less than an hour. - Product mindset: You ask “how does this affect the user in Windsor town, Colorado?” before you write code, and you’re comfortable estimating effort in story points and communicating trade‑offs to product managers. - Collaboration style: You thrive in a remote environment, have a reliable internet connection, and block out a consistent time slot (e.g., 9 am–12 pm Windsor town time) for daily stand‑ups and pair‑programming. - Culture fit: You enjoy celebrating small wins—like a “no‑crash” day—and you’re not afraid to call out a rushed release if the quality could suffer. What we offer - Compensation: $120 k–$150 k base, depending on experience, plus a quarterly performance bonus that averages 10 % of salary. - Benefits: 100 % employer‑paid health, dental, and vision; a $2 k stipend for home‑offi Apply tot his job Apply To this Job