Android Engineer

• Lead the technical design and architecture of Android applications, ensuring scalability, maintainability, and performance.
• Act as a technical reference and mentor, supporting and guiding other engineers across teams.
• Develop high-quality features using Kotlin, Jetpack Compose, and modern design principles.
• Make architectural decisions that emphasize scalability, testability, and performance.
• Work with REST and GraphQL APIs and collaborate closely with backend teams.
• Write clean, modular, testable code using SOLID principles and dependency injection.
• Maintain and expand automated test coverage (unit, UI).
• Design with security in mind: safe data handling, encryption, secure storage, and robust networking.
• Ensure strong observability—add metrics, logging, tracing, analytics, and performance instrumentation.
• Optimize performance using Android Studio Profiler and related tooling.
• Contribute to GitHub workflows, CI/CD automation, and trunk-based development.
• Use AI tools to enhance testing, documentation, refactoring, and developer efficiency.
• Collaborate with multiple mobile and backend teams in a large, complex engineering environment.
• Mentor peers and support engineering excellence across teams.

Android Developer

• Design, build, and maintain core features using Kotlin and modern Android frameworks (Jetpack Compose, AndroidX, Coroutines).
• Deliver smooth, intuitive user experiences that support complex financial workflows.
• Own feature development end-to-end—from architecture to implementation, testing, and release.
• Establish architecture patterns (MVVM, MVI, Clean Architecture) that support speed, maintainability, and long-term scale.
• Optimize performance, responsiveness, offline/online behavior, and data persistence.
• Build for speed and correctness in a regulated environment.
• Integrate mobile clients with backend APIs, financial data systems, and third-party providers.
• Work closely with backend engineers to shape efficient API interactions and ensure seamless real-time data flows within the app.
• Implement secure data handling practices required for financial applications.
• Ensure proper encryption, secure storage, authentication flows, and session management.
• Build with the rigor necessary for regulated, high-trust environments.
• Partner with product managers, designers, and fellow engineers to deliver cohesive, user-centered features.
• Contribute to architectural discussions, planning, and code reviews.
• Support engineering excellence through documentation, testing, and raising the overall technical bar.

Senior Developer – Android

• Join a dynamic and fast-growing AI infrastructure company that collaborates with Fortune 100 clients to shape the future of machine learning and artificial intelligence.
• As a Data Annotator, you will be responsible for accurately identifying, classifying, and annotating entities within PDF documents.
• Your work will directly contribute to training AI models that extract structured information from complex documents, making high-quality annotation critical to project success.
• As an Android Engineer (Kotlin / Java), you will work remotely on an hourly paid basis to review AI-generated Android code, mobile architectures, and technical explanations.
• You will produce high-quality reference implementations and step-by-step reasoning for complex engineering problems.
• Assess solutions for correctness, clarity, security, performance, reliability, and adherence to the prompt.
• Identify issues in Jetpack Compose/UI, concurrency, threading, memory/performance, app lifecycle, networking, persistence, and build/release practices.
• Fact-check technical information; write high-quality explanations and model solutions that demonstrate best practices.
• Rate and compare multiple AI responses based on correctness and reasoning quality.

Android Engineer, Kotlin, Java

• Own and deliver well-scoped Android product feature milestones that help creators create content on Patreon
• Drive technical design of components that are scalable, well tested and are easy to maintain
• Collaborate with product managers, data scientists, designers, and other engineers to deliver high quality features
• Champion innovative solutions that enhance the usability and engagement with discovery features

• Drive the design and development of system-level components and libraries within the Android framework.
• Build HAL, AIDL interfaces and android services
• Work closely with product managers, UX designers, and hardware teams to gather requirements and define technical solutions.
• Analyze performance bottlenecks and troubleshoot system issues, ensuring high efficiency and user satisfaction.
• Conduct thorough code reviews and ensure adherence to best coding practices and high-quality standards.
• Maintain comprehensive documentation covering architecture, workflows, and technical specifications.

Senior Android Framework Engineer

• Framework Engineering: Develop and maintain custom modifications within the Android Framework (AOSP) and Hardware Abstraction Layers (HAL).
• OEM Integration: Partner with global smartphone manufacturers and chipset vendors to integrate PayJoy’s proprietary technology into factory firmware.
• Cross-Border Collaboration: Work daily with our China-based engineering team to align on technical specifications and manufacturing requirements.
• Feature Development: Implement new locking features that interact with system-level services for example Telephony, Power Management, and Device Policy Manager, etc…
• R&D & Debugging: Use deep chip-level knowledge to troubleshoot integration issues across different silicon providers (Qualcomm, MediaTek, etc.).
• Process Automation: Contribute to OTA (Over-the-Air) updates and global device testing.

Senior Software Engineer – Android Systems, Security

• Assist in customizing Android operating systems for Elo devices
• Collaborate on projects involving hardware and software integration
• Work with primary applications to enhance functionality

• Develop and maintain native Android applications using modern development practices.
• Design and implement scalable, maintainable mobile architectures.
• Collaborate with product managers, designers, and backend engineers to deliver new features.
• Optimize application performance, reliability, and user experience.
• Participate in code reviews and contribute to engineering best practices.
• Help define technical direction and improve development processes.
• Troubleshoot and resolve production issues.
• Ensure high standards of code quality, testing, and maintainability.

Senior Android Developer

• Develop cohesive solutions to content based technical obstacles
• Participate in the definition of product requirements and articulate how engineering efforts align with those requirements
• Lead architectural discussions and prepare architectural diagrams for the engineering team
• Design, develop, test, and deploy new solutions using modern technologies and maintain existing solutions
• Mentor mid- and senior-level engineers and participate in code reviews.

Lead Software Engineer – Android

• Getting to know teammates, technology, and tactics. In your first month, you'll set up your local environment, ship your first small contribution, and learn the rhythms of our pod. You'll study the Cozi and FamilyWall Android codebases, understand how they differ architecturally, and identify the experimentation surface area. You'll build connections with product, design, QA, and backend teammates.
• Design and run experiments. By day 60, you'll be comfortable operating within our development lifecycle from planning through production releases. You'll be designing and instrumenting your first A/B experiments in the Android app — defining hypotheses, configuring feature flags, and ensuring clean data collection. You'll work across subscription, onboarding, and activation flows for Cozi and FamilyWall, and begin forming opinions on where the experimentation framework can improve.
• Own the experiment loop end-to-end. By 90 days, you'll be autonomously scoping, building, and analyzing Growth experiments. You'll proactively propose experiment ideas based on data and user behavior — not just executing what's handed to you. You'll participate in technical planning, anticipate edge cases, and balance iteration speed with app quality. You'll partner with product, design, and data to refine the hypothesis-test-learn cycle.
• Scale experimentation and influence strategy. Beyond your first few months, you'll shape the experimentation roadmap for Family Org Android alongside product and engineering leadership. You'll mentor teammates on experiment design, instrumentation best practices, and data hygiene. You'll drive improvements to conversion, activation, and retention across both Cozi and FamilyWall, and contribute to cross-platform alignment (Android, iOS, Web) for consistent Growth experiments.

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