Hybrid App Developer

Job Title: Senior Android Developer / Lead Engineer (Java | Kotlin | Android)

Experience Required

• 10+ years of overall software development experience
• Strong hands-on expertise in Java, Kotlin, and Android development

Role Overview

We are seeking a highly experienced Senior Android Engineer with deep expertise in Android OS internals, system-level development, and strong hands-on coding ability. The role demands strong technical leadership, architectural thinking, and the ability to design and build scalable, high-performance Android applications with system-level integrations.

This is a hands-on technical role (not people management) with focus on architecture, design, and complex problem solving.

Key Responsibilities

1. Android Application Development

• Design, develop, and maintain advanced Android applications using Java and Kotlin
• Write clean, efficient, and maintainable code with strong adherence to OOP principles
• Participate in hands-on coding, debugging, and code reviews

2. Android Framework & System-Level Development

• Work with Android OS-level APIs including:
• Services
• Binder IPC
• AIDL
• System services
• Understand and implement system-level integrations

3. Low-Level & Hardware Interaction

• Exposure to Kernel / Hardware Abstraction Layer (HAL)
• Work on device-level integrations such as:
• Sensors
• Bluetooth
• Other hardware peripherals

4. Performance & Stability Engineering

• Identify and resolve performance issues including:
• ANR (Application Not Responding)
• Memory leaks and optimization
• Ensure application stability and efficient resource usage

5. Concurrency & Multithreading

• Build robust multi-threaded applications
• Strong understanding of:
• Concurrency models
• Synchronization mechanisms
• Thread safety and race condition handling

6. System Design & Architecture

• Design scalable, modular, and maintainable Android applications
• Define architecture patterns and enforce best practices
• Contribute to system-level design decisions

7. Technical Leadership (Hands-on)

• Provide technical direction and mentorship to engineering team members
• Guide design and implementation decisions
• Conduct architecture and code reviews
• Remain actively involved in coding and technical problem solving

Preferred / Good to Have

• Exposure to IoT domain
• Exposure to HVAC systems or related embedded domains

Must-Have Skills Summary

• 10+ years Android development experience
• Strong Java, Kotlin, Android expertise
• Deep knowledge of Android internals and system APIs
• Strong OOP and coding skills (coding assessment required)
• Experience with performance tuning and memory management
• Strong understanding of multithreading and concurrency
• System design and architecture expertise
• Hands-on technical leadership

• 2+ years of experience in Front React Native development
• Experienced in using Mobile Views on iOS and Android
• Good understanding of MVC frameworks
• A knack for writing clean, readable React-Native code
• Solid understanding of object-oriented programming
• Understanding Agile Development and Scrum practices
• Familiarity with version control Git (Github or Gitlab)

About Plum

We are making health insurance - simple, accessible and affordable. Hundreds of businesses of all sizes from startups to large corporates trust Plum for their employee's health protection.

Healthcare in India is seeing a phenomenal shift. Healthcare cost is seeing an inflation that is three times the general inflation. Treatments of diseases including Covid-19 can wipe out entire household savings. Majority of Indians won't be able to afford a health insurance on their own. As many as 600mn Indians would depend on employer-sponsored insurance.

Enter Plum. Plum is re-imagining the health insurance stack, and accelerating the penetration of health insurance in India to 100%. Plum has forged new underwriting and fraud detection algorithms to enable companies as small as 2 to benefit from a group insurance. The platform enables realtime insurance design & pricing to enable companies to buy insurance in 3-clicks. And offers employees a hassle-free claims experience through an integrated digital process.

Plum is backed by leading global investors including Tiger Global, Sequoia Capital, Tanglin Ventures and Incubate Fund (read more https://www.plumhq.com/blog/plum-series-a-funding">here)

• Design, build, and maintain high performance, reusable, and reliable Java code. 
• Translate designs and wireframes into high quality components and modular code, ensuring the best possible performance, quality, and responsiveness of the application
• Strong advocate of Google’s Android design principles and interface guidelines
• Strong sense of ownership and integrity demonstrated through clear communication and collaboration.Having experience with building and maintaining an open source project or design library is a plus.

• 3 + years of experience of Android SDK, different versions of Android, and how to deal with different screen sizes. 
• Experience with local databases, offline storage, threading, and performance tuningExperience with Kotlin and Jetpack Compose is desirable.
• Familiarity with RESTful APIs to connect Android applications to back-end services
• Familiarity with the use of additional sensors, such as camera, gyroscopes and accelerometers
• Knowledge of the open-source Android ecosystem and the libraries available for common tasks
• Ability to understand business requirements and translate them into technical requirements

S/he will be responsible for complete react-native development and collaborate as required with product management and user experience teams. ● S/he will architect and design product features with a focus on maintainability, extensibility, scalability, and lowest operational cost. ● S/he will be responsible for undertaking proof-of-concept work where required. ● S/he will be responsible for coding and implementing features with very high coverage of unit tests and component tests ● S/he will be responsible for managing a team of android/reactive native developers, and perform design and code reviews. ● S/he will continuously discover, evaluate, and implement new technologies to maximize development efficiency What are we looking for? ● S/he must have experience in delivering projects using react native ensuring performance, quality, and responsiveness of applications ● S/he must have strong design and programming skills in Kotlin, JavaScript, Typescript, react components, Android SDK, Android Studio, SDK, RXJava, HTML5, CSS3, JS, RWD and other mobile frameworks and /or accelerators. ● S/he must have experience with offline storage, multi-threading, performance tuning, memory tuning and RESTful APIs to connect Android applications to back-end services ● S/he must have experience with Model-View View-Model, Model View Presenter software architecture, retrofit, and dagger among others

● S/he must have unit-testing the code for robustness, including edge cases, usability, and general reliability. ● S/he must have experience in mobile analytics. ● S/he must have experience in designing, optimizing and integrating business processes across disparate systems and mobile technologies.

Good-To-Haves / Desired Qualifications

● It would be good if, s/he has the ability to multi-task, prioritize, be attentive to detail, have an eye for design, think logically, organize and communicate coherently. ● It would be good if, s/he is fast paced, collaborative / team player, performance-driven and self-motivated ● It would be good if, s/he is curious, analytical, a problem solver and has logical reasoning.