Lead Mobile Developer

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.

Cyces Innovation Labs LLP is looking for a skilled Mobile Application Developer - React Native to join our team. In this role, you’ll be responsible for developing high-quality, reusable code and ensure best practices are followed. You will work closely with the product management team to deliver new features and enhancements, translating UI/UX designs into pixel-perfect, and responsive mobile interfaces. You'll also collaborate within an Agile team, and integrate with REST APIs, and stay up to date with new technologies to improve development efficiency.

Responsibilities 

• Produce high quality, re-usable code, and ensure best practices are followed by the team 
• Take ownership of technical architecture, coding, and development standards 
• Create new and enhance existing features and code according to requirements
• Work closely with the product management team to produce accurate estimates and clarification
• Develop UI/UX designs into pixel-perfect, responsive user interfaces.
• Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency. 

Qualifications 

• Bachelor’s degree in Computer Science / Information Technology /Software Engineering, or a related field
• Strong understanding of mobile app architecture and design patterns
• Knowledge of UI/UX implementation for mobile apps
• Understanding with responsive mobile design
• Strong problem-solving and debugging skills
• Excellent collaboration and communication skills
• Ability to manage time effectively in an Agile environment

About UpSolve:

UpSolve is a cutting-edge AI company specializing in providing sophisticated solutions for business decision-making. Our AI solutions cover a wide spectrum, including Video, Image, and Text analysis, empowering businesses to make quicker and more precise choices.

Role Description:

We are seeking highly motivated Hybrid App Developers to join our dynamic team in Mumbai. As an App Developer, you will play a crucial role in developing top-notch applications for both iOS and Android platforms. Your expertise will be essential in delivering high-quality, user-friendly applications that align with our company's mission and vision.

Key Responsibilities:

• Collaborate with cross-functional teams to design, develop, and deploy hybrid applications for iOS and Android platforms.
• Implement user-friendly interfaces and engaging user experiences using application development frameworks and programming language.
• Ensure application performance, responsiveness, and efficiency across various devices.
• Work on UX/UI designs and translate design concepts into functional app interfaces.
• Conduct thorough code reviews, identify bugs, and implement solutions to maintain code quality.
• Stay updated with the latest industry trends, technologies, and best practices in hybrid app development.

Qualifications:

• Minimum 1.5 years of hands-on experience in hybrid app development.
• Strong understanding of mobile app architecture and UI components.
• Familiarity with RESTful APIs and integration of third-party libraries.
• Ability to work collaboratively in a fast-paced environment, with excellent communication skills.
• A portfolio of previous app projects demonstrating your expertise and creativity.
• Bachelor's degree in Computer Science or related field is preferred.

Job Description

We are seeking a highly skilled Sr. Fullstack Mobile Developer with a passion for crafting exceptional mobile experiences and robust backend systems. This role demands a deep understanding of React Native, Node.js, and modern cloud ecosystems like AWS, combined with a commitment to best practices and continuous improvement.

As part of our team, you will work closely with cross-functional teams to design, build, and maintain high-performance mobile applications and scalable backend solutions for our clients. The ideal candidate is a team player with a growth mindset, a passion for excellence, and the ability to energize and inspire those around them.

Requirements

• Education: Bachelor’s degree in Computer Science, Engineering, or a related field.
• Experience: 4-6 years of professional experience as a Fullstack Developer, with at least 3 years in mobile development using React Native.
• Proven expertise in building and scaling mobile applications and backend systems in a services environment.
• Strong proficiency in Python or Node.js, AWS, and database technologies (SQL and NoSQL).
• Experience implementing CI/CD pipelines and automation tools.
• Deep knowledge of software engineering best practices, including clean code principles and test-driven development.
• Familiarity with AI copilots and a willingness to incorporate AI-driven tools into workflows.
• Excellent communication and collaboration skills, with the ability to inspire and influence teammates.
• Demonstrated growth mindset, passion for learning, and a commitment to excellence.
• A perfectionist attitude with an eye for detail and a drive to deliver outstanding results.
• Prior experience working with a services company is a must.

Benefits

• Creative Freedom: A culture that empowers you to innovate and take bold product decisions for client projects.
• Comprehensive Healthcare: Extensive health coverage for you and your family.
• Tailored Growth Plans: Personalized professional development programs to help you achieve your career aspirations.

We are seeking a talented and experienced Engineering Lead to join our Team. As the Engineering Lead, you will play a crucial role in driving the technical direction of our mobile app development, focusing on iOS and ReactJS technologies. You will lead a small team of software engineers and work closely with the product and design teams to deliver innovative and high-quality mobile applications. The ideal candidate is a hands-on technologist with a passion for startups, possesses strong leadership skills, and thrives in a fast-paced, dynamic environment.

Responsibilities:

• Lead and manage a team of software engineers, providing mentorship, guidance, and support throughout the software development lifecycle
• Set clear objectives and performance expectations for the team members, and regularly assess and review their performance
• Collaborate with product managers, designers, and other stakeholders to understand project requirements and define the technical roadmap for mobile app development projects.
• Provide technical expertise and guidance to the team, assisting with architectural decisions, code reviews, and problem-solving.
• Ensure the timely delivery of high-quality mobile applications by managing resources, setting realistic project timelines, and resolving any obstacles or bottlenecks.
• Stay up-to-date with the latest industry trends and advancements in mobile app development, iOS, and ReactJS technologies, and identify opportunities to leverage new tools and frameworks.
• Foster a culture of continuous improvement within the team, encouraging knowledge sharing, adopting best practices, and promoting a positive and collaborative work environment.
• Collaborate with cross-functional teams, such as QA, DevOps, and UX/UI, to ensure seamless integration and deployment of mobile applications.
• Act as a point of contact for technical discussions, representing the team in meetings with stakeholders and upper management.
• Identify and address any technical or performance-related issues, working closely with the team to resolve them and ensure the stability and scalability of the mobile applications.

We are seeking a skilled and experienced React Native Developer to join our dynamic development team. As a React Native Developer, you will be responsible for designing, developing, and maintaining high-quality mobile applications using the React Native framework. You will collaborate closely with cross-functional teams, including product managers, designers, and backend developers, to create innovative and user-friendly mobile solutions.

We are looking for a React Native Engineer at Prescribe You will be responsible for architecting and developing mobile app in React Native (Android/iOS). You will be joining a talented, collaborative team that is very passionate about solving this massive problem.

Location:

Work from Home

About Prescribe:

Prescribe (YC W21) is one of the fastest-growing startups in the Healthcare sector in India founded by IIT Madras alumni. We are building a D2C brand in the natural healthcare space.

Requirements and Responsibilities:

Below is a list of several skills required to deliver on responsibilities for this role:

• Minimum 2+ years of experience in React Native/ React development
• Familiarity with AWS solutions like Amplify , Cognito, DynamoDB will be a bonus
• Should be able to write reusable, testable, and efficient code. Should be able to design and implement low-latency, high-availability, and high-performance applications.
• Architect & design technically robust, flexible, and scalable solutions
• You must have experience in deploying Android/iOS apps previously on playstore/Appstore.
• You should be able to build pixel-perfect, amazingly smooth UIs across both mobile platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native

Benefits]

• Work flexibility
• Medical insurance
• Work from Home
• Stock Options based on performance

If you always thought of yourself as entrepreneurial, customer-obsessed, results-oriented, strategic yet execution-focused, hungry and passionate about technology, we have a dream opportunity to back yourself up.