Senior Software Engineer

Job Description :

Position Title : Android Developer

Experience : 3+ Years

Summary :

We are looking for an experienced Android Developer with strong Java expertise to join our team. The role involves developing, optimizing, and maintaining high-performance Android applications to ensure excellent user experiences.

Responsibilities :

• Build and maintain Android apps using Java.
• Design and implement new features in collaboration with cross-functional teams.
• Optimize app performance, fix bugs, and improve user experience.
• Integrate third-party libraries and APIs.
• Stay updated with mobile development trends and technologies.
• Write clean, maintainable code following best practices.
• Conduct unit and integration testing.

Required Skills :

• 3+ Years of experience as an Android Developer.
• Proficiency in Java, Android SDK, and Android Studio.
• Experience with RESTful APIs and mobile storage solutions (e.g., SQLite, Firebase).
• Strong debugging and problem-solving skills.
• Familiarity with Git and UI design principles.

Preferred Skills :

• Knowledge of Kotlin and Android Jetpack libraries.
• Experience with CI/CD pipelines and publishing apps on Google Play.
• Understanding of Material Design guidelines.

What this role is

The market has no shortage of mobile developers who only do mobile, and no shortage of full-stack engineers who have never shipped a production app. This role is neither of those.

You are a Product Engineer whose centre of gravity is mobile. React Native is where you live. You have shipped apps, debugged native integrations, handled platform-specific edge cases, and understand what it actually takes to get something through App Store and Play Store review. That is the non-negotiable foundation.

But at Fountane, Product Engineers build products — not layers. The same feature that lives in a mobile app often has a web surface, an API, a webhook, or a database schema behind it. At L3 you are expected to own the full application surface of what you are building, not hand off the moment the work touches a backend. You will not be doing everything alone — you have a pod. But you will need to be capable of crossing the boundary when the work demands it.

You are joining a permanent Island pod. Your first deployment is to an ongoing client engagement that requires your mobile depth immediately. After that, you are a long-term Islander who will move across engagements as the Mainland deploys you.

What Fountane is actually asking for

We know the market has specialists. We are not pretending this is a standard full-stack role with mobile as a footnote, or a mobile role where full-stack is irrelevant. Mobile is your primary skill. Everything else is your secondary obligation. If you have spent your career going deep on React Native and can hold your own on an API or a web feature when needed, this role fits you.

If you are a pure mobile specialist who cannot — or will not — touch anything outside the app layer, this is not the right fit. Not because we do not respect specialisation, but because Islands do not have room for hard walls between disciplines. The work crosses boundaries. So must you.

What you will own at L3

• React Native application development — the primary mobile codebase, feature delivery, and platform-specific implementation across iOS and Android
• App Store and Play Store release management — build pipelines, submission, review compliance, and versioning
• Native integrations — push notifications, device permissions, biometrics, deep linking, offline-first patterns, and platform SDK integrations where required
• Context Engineering — translating Concept Engineer prototypes and briefs into a clean, scalable mobile architecture using Cursor as your primary execution tool
• API integration and backend contribution — consuming and, where needed, building or modifying the backend services your mobile surfaces depend on
• State management architecture — owning how data flows through the mobile application, not just implementing patterns handed to you
• Cross-platform consistency — ensuring iOS and Android behaviour is intentional and documented, not accidental
• Cursor .cursorrules contribution — maintaining the Island's mobile-specific coding standards and context files so the codebase stays navigable as it grows
• Refactoring and codebase stabilisation — at L3 you are expected to work safely on an existing codebase, not just greenfield. You use Cursor's codebase context to edit and optimise without breaking what already works
• Mentoring L1 and L2 engineers on the Island — reviewing their code, raising the quality bar, and making sure mobile-specific patterns are being applied correctly across the pod

The technology you will be working with

This role is being hired for a specific active engagement. The following is the technology stack in use on this project. If you have not worked with these directly, do not apply.

• React Native — cross-platform mobile, iOS and Android
• TypeScript and JavaScript (ES6+) — the entire codebase is typed
• State management — Zustand and Redux; you need to know both and have an opinion on when to use each
• API integration — RESTful APIs and GraphQL; you will be consuming both
• Push notifications — Firebase Cloud Messaging (FCM) and Amazon SNS
• List rendering and UI performance — FlatList and related React Native optimisation patterns; this is not optional on a project of this scale
• Git — branching, PR reviews, and version control discipline on a team codebase
• iOS and Android platform guidelines — you understand the design and behavioural expectations of both platforms and implement accordingly

Bonus — useful but not required to apply:

• Native Android (Kotlin/Java) or iOS (Swift/Objective-C) experience
• Mobile testing frameworks — Jest, Detox, React Native Testing Library
• CI/CD pipeline experience for mobile applications
• Performance monitoring and analytics tooling

Proof-based qualifications

We do not assess candidates on years of experience or job titles. We assess on proof of capability. When you apply, be prepared to demonstrate the following:

What we look at

What you must show

2–3 shipped apps

Live applications on the App Store and/or Play Store that you built or were a primary engineer on. Provide links or app names in your application. We will look them up. If you cannot name two shipped apps, do not apply.

React Native + TypeScript

A codebase or feature set demonstrating typed React Native development — components, hooks, context API, and state management using Zustand or Redux. Not a tutorial project.

API and backend integration

A feature where your React Native work connected to a RESTful or GraphQL API — ideally one you also built or modified on the backend side. Show us the integration, not just the consumption.

Cursor-driven workflow

Walk us through how you currently use Cursor and Claude in your build process. Not a demo. A real conversation about how AI tooling has changed how you write and debug code.

A CV listing React Native and a GitHub with no shipped apps is not proof. Show us what you have built.

AI tooling at Fountane

Claude and Cursor are the primary tools for thinking, drafting, and executing work at Fountane. Every Product Engineer — including this one — is expected to use Cursor as their main development environment and Claude for context engineering, debugging, and architectural thinking.

This is not a listed skill. It is the working method. If you are not already building with Cursor and Claude integrated into your daily workflow, you will need to get there fast. The Island's velocity depends on it.

Who should not apply

• You have only built mobile apps backed entirely by third-party services (Firebase, Supabase) and have never touched application logic outside the app layer.
• You cannot name two or more applications you have shipped to the App Store or Play Store.
• You treat mobile as a skin over a web app. You have not handled platform-specific native behaviour, device APIs, or cross-platform edge cases.
• You are not using AI tooling in your current workflow and see it as optional.
• You need a clear boundary around mobile and expect the backend work to always belong to someone else.

What comes next

L3 is not a ceiling. The path to Lead PE — Mobile requires demonstrated ability to orchestrate the Island's full application architecture across mobile and backend, define the .cursorrules for the pod, manage Island velocity, and handle client technical conversations without the Lead CE in the room. Promotion is not tenure-based. It is triggered by demonstrated capability at the next level's complexity tier.

About Fountane

Fountane is a technology ventures lab - one part product studio, one part startup engine. We build high-quality software and AI products for clients ranging from fast-moving startups to large enterprises, and we co-build and invest in new companies when we see the right opportunity.

Founded in 2017 and headquartered in Minneapolis, we have grown to 60+ people across four continents and were recognised as one of America’s fastest-growing companies, ranking No. 699 on the Inc. 5000 with 595% three-year growth.

We are radically open-minded, serious about craft, and direct about expectations. If you want to do meaningful work without politics, this is the place.

Responsibilities 

• Collaborate with the core team building a state-of-the-art blockchain based SaaS platform. 
• Building mobile applications using latest technologies leveraging Android, node and mongo. 
• Apply comprehensive knowledge and a thorough understanding of concepts, principles, and technical capabilities to perform varied tasks and projects. 
• Backend RESTful API Design and server-side development for web and mobile apps. 
• Develop and design database schemas on MongoDB. 
• Perform code reviews and unit tests to ensure code consistency and maintainability. 

Minimum Qualifications & Qualities 

• Passion to solve complex problems of agriculture in a dynamic start-up environment 
• Flexible, curious, exploratory, and can-do attitude 
• Great sense of ownership and ability to work with very limited supervision 
• Bachelor's degree in Computer Science, related technical field, or equivalent practical experience. 
• 1+ year of hands-on coding expertise in software engineering. 
• Experience with Android, Node.js, mongodb
• Ability to speak English fluently. 

Preferred Qualifications 

• Strong programming experience of 1+ years with Android, Node.js, Express.js, MongoDB. 
• Strong problem solving/troubleshooting skills. 
• Experience with SDLC in an Agile work environment using tools like Jira and GitHub. 
• Knowledge and experience of NoSQL Databases is a must. 

• Knowledge of AWS Services like ECS, EKS, EC2, S3, Lambda, Load Balancing, Route 53, API Gateway along with Infrastructure provisioning and optimization is an advantage.
• Experience with DevOps, CI/CD pipelines on Jenkins, GitHub Actions,
• Experience with containerization environments like Docker & Kubernetes is an advantage. 
• Familiar with TDD, CI/CD, Infrastructure as Code
• Knowledge of any Blockchain protocols like Hyperledger is clearly an undue advantage

• 3+ Years of experience in developing iOS applications
• Experience in defining system architectures and exploring technical feasibility tradeoffs.
• Should have experience with Swift, Autolayout, MVVM / MVP Design pattern.
• Should have experience with common iOS libraries like RxSwift, Alarmofire etc
• Debugging skills, including identifying memory leaks, performance bottlenecks.
• Good command over Data Structures and Algorithms.
• Understanding of design for scalability, performance and reliability
• Experience working in an Agile environment and project management tool like Jira
• Good to have experience in working with Google Maps and have published one or more app on app store.
• Good to have experience in CI/CD, Core Data, Swift UI, App Clips, Integrating with Payment Gateways

Requirements:

• Minimum 3 years of experience in React Native.

• Integration of Rest APIs in react native.

• Firm grasp of the JavaScript and Typescript language and its nuances, including ES6+ syntax

• Knowledge of functional and object-oriented programming

• Ability to write well-documented, clean JavaScript code

• Rock solid at working with third-party dependencies and debugging dependency conflicts

• Familiarity with native build tools, like XCode, Gradle, Android studio and IntelliJ

• Proficient understanding of releasing and monitoring apps on IOS App store, Play store.

• Should be able to communicate to backend developers on API building and modifications needed.

• Testing and releasing builds Experience in application testing software’s Appium is preferable.

• Understanding of REST APIs, the document request model, and offline storage

• Experience with automated testing suites, like Jest or Mocha

• Experience with handling production mobile apps.

• Experience with performance testing and optimization.

Responsibilities:

You’ll

• We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms.

• You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure.

• Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

• Build pixel-perfect, buttery-smooth UIs across both mobile platforms.

• Leverage native APIs for deep integrations with both platforms.

• Diagnose and fix bugs and performance bottlenecks for performance that feels native.

• Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.

• Maintain code and write automated tests to ensure the product is of the highest quality.

• Transition existing React web apps to React Native.

• Develop applications for iPhone and iPad
• Review new releases, SDKs, updates in the mobile space
• Proficient in Objective-C, Swift, and Cocoa Touch.
• Experience in object-oriented programming
• Proficient in code versioning tools including Mercurial, Git, and SVN.
• Experience of the software development lifecycle: from requirements gathering to programming, testing to deployment.
• Experience with integrating with RESTful, SOAP API backends
• Experience with APIs (OAuth, XML, JSON, REST, etc. )
• Evaluate third-party IDEs' and tools to build relevant applications
• Native iOS Application Development Objective C, iOS SDK, Xcode, Cocoa Layer, Media Layer, Core Service Layer, Core OS Layer, iOS Frameworks, iOS Developer Tools, iOS programming, iOS Human Interface

• The unit test developed code
• Conduct code reviews & peer reviews
• Integrate user interface with code
• APIs (OAuth, XML, JSON, REST, etc. )
• RESTful, SOAP API backends
• Review updates/patches and make necessary code updates

1. Designing and developing advanced applications for android platforms.
2. Collaborate with UI/UX designers as well as the software engineers to make sure that each app is presentable.
3. Test the applications, identify any bugs and resolve them
4. Manage tasks within Agile framework and controlled JIRA workflow.
5. Document architecture and implementation for internal and external components.

1. 1+ years of experience in Android Development .
2. Previous experience working in a fast paced start up is a plus.
3. Released at least 1 app or have a project in works that you can tell us about.
4. Experience publishing a high-quality android application to the google store.
5. Solid understanding of the full mobile development life cycle.
6. Experience working with Android SDK and Android studio.
7. Good in JAVA (j2se) and Kotlin
8. Experience with APIs (OAuth, XML, JSON, REST, etc. )
9. Ability to understand business requirements and convert them into technical requirements.