Android App Developer

Job Responsibilities:

• Assist in the design, development, and maintenance of high-quality Android applications using Java/Kotlin.
• Work with Android Studio to write clean, efficient, and well-documented code.
• Implement and adhere to MVVM (Model-View-ViewModel) architectural patterns to ensure scalable and maintainable applications.
• Utilize Data Binding to streamline UI development and improve code readability.
• Develop user interfaces with a strong understanding of various Layouts (ConstraintLayout, LinearLayout, RelativeLayout, etc.) and responsive design principles.
• Integrate applications with RESTful Webservices using libraries like Retrofit to connect with backend services and handle data efficiently.
• Gain experience in interacting with databases, including basic operations with SQLite Database (Creating, Updating/Querying) for local data storage and understanding of server-side data interaction.
• Apply Debugging Skills using tools such as Logcat, Android Debugger (Debug), and Lint for identifying and resolving issues, and optimizing application performance.
• Leverage Plugin Tools like ADB Idea, Codata, and Lombok Plugin (if applicable) to enhance development workflow and productivity.
• Work with various Android APIs to implement new features and functionality.
• Participate in Testing the Android Application, including unit testing and collaborating with QA for functional and integration testing.
• Perform Lint for Code Inspection to ensure code quality, consistency, and adherence to best practices.
• Learn and apply fundamental Design Patterns (e.g., Singleton, Observer) in Android development.
• Collaborate effectively with cross-functional teams, including product managers, UI/UX designers, and backend developers, to define, design, and ship new features.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency and improve application performance.
• Stay up-to-date with the latest Android development trends and best practices.

Required Skills and Qualifications:

• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).
• 0-2 years of hands-on experience in Android application development.
• Solid understanding of Android SDK and Android Studio.
• Proficiency in at least one of the primary Android programming languages: Java or Kotlin.
• Familiarity with MVVM architecture.
• Basic knowledge of Data Binding.
• Understanding of various Android Layouts.
• Exposure to SQLite Database and concepts of server-side interaction.
• Familiarity with Retrofit for API consumption.
• Demonstrated Debugging Skills using relevant Android tools.
• Awareness of common Plugin Tools for Android development.
• Basic understanding of Android APIs.
• Knowledge of RESTful Webservices principles.
• Experience with testing methodologies for Android applications.
• Ability to use Lint for Code Inspection.
• Eagerness to learn and apply Design Patterns.
• Strong problem-solving abilities and attention to detail.
• Excellent communication and teamwork skills.
• A portfolio of personal or academic Android projects is a strong plus.

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Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop and maintain high-quality Android applications using Kotlin programming language.
• Design, build and maintain high-performance, reusable, and reliable code.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Identify and correct bottlenecks and fix bugs.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Work with external data sources and APIs.
• Unit-test code for robustness, including edge cases, usability, and general reliability.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering or related field.
• 2+ years of experience in Android development using Java and Kotlin.
• Strong knowledge of Android SDK, Android UI design principles, and Material Design.
• Experience with RESTful APIs, JSON, and XML.
• Familiarity with cloud message APIs and push notifications.
• Understanding of code versioning tools such as Git.
• Familiarity with continuous integration.
• Good understanding of object-oriented programming, software design patterns and algorithms.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently and as part of a team.

Our Mission

Mercari is a Japan-based company with the mission of “create value in a global marketplace where anyone can buy & sell.” Having continuously worked toward this goal since our founding in 2013, we are now transforming from a startup into a global player. While this transformation brings its own specific set of challenges, we believe that solving them one after another will allow us to fully achieve our mission. Are you interested in working together to take on these exciting challenges?

Our Culture

To achieve our mission at Mercari, our organization and each of our employees share the same values and perspectives. Our individual guidelines for action are defined by our three values: Go Bold, All for One, and Be a Pro. Our organization is also shaped by our four foundations: Sustainability, Diversity & Inclusion, Trust & Openness, and Well-being for Performance. Regardless of how big Mercari gets, the culture will remain essential to achieving our mission and something we want to preserve throughout our organization. We invite you to read the “Mercari Culture Doc,” which summarizes the behaviors and mindset shared by Mercari and its employees. We continue to build an environment where all of our members of diverse backgrounds are accepted and recognized, and where they can thrive while holding dear to Mercari’s culture.

Work Responsibilities

• Native Android app development for Mercari and group companies' apps
• The development environment is as follows.
• Development language: Kotlin
• Development environment: Android Studio
• Build tool: Gradle
• CI/CD： CircleCI
• Others: GitHub, Firebase, Slack, Figma, JIRA, Confluence

Minimum Requirements

• Shared understanding and belief in Mercari Group mission and values
• At least 3 years of experience developing native Android applications with Kotlin Developing, operating, making decisions when selecting technology, and continuous improvement of large-scale product codebases
• Ability to design and develop with performance and scalability in mind
• Extensive knowledge of object-oriented software development, networking, memory management, and software testing
• Good communication and interpersonal skills with the ability to collaborate with multiple stakeholders
• Familiarity with architecture frameworks like MVVM, MVP, declarative UI, or similar architectures

Preferred Requirements

• Experience using and installing Jetpack functions such as Android Architecture Components
• Understanding of UI development
• Familiarity with Agile methodologies like Scrum, Kanban, etc
• Experience in iOS or web development
• OSS contribution experience/familiarity with the OSS community
• Customer-centric product development in E-commerce/Fintech
• Working in multi-cultural and diverse teams
• Team Leadership experience

Working Conditions

Employment Status

Full-time

Office

Bangalore

• Hybrid Workstyle

Work Hours

• Full flextime (no core time)
• *Does not apply to all positions

• Writing clean and efficient code for Android applications.
• Atleast published 1-2 apps on play store.
• Identifying and resolving bottlenecks, rectifying bugs and enhancing application performance.
• Collaborating with cross-functional teams to define and design new features.
• Staying up to date with new mobile technology trends, applications, and protocols.

• You have prior exposure to Kotlin, Android SDK.
• Understanding of design patterns and mobile architecture using frameworks such as MVVM / MVC / MVP.
• Familiarity with RESTful APIs to effectively integrate Android applications.
• Understanding of code versioning tools such as Git.
• You are a problem solver with good analytical skills.
• Prior experience in accessibility applications or voice-based applications will be a plus not a necessity
• Passion to work in dynamic, start-up environment

We are looking for an Android developer who has hands-on experience in coding, building technology blocks, help answer choice of certain platform/tech over others, help the team visualize the product with the available resources and assets. 

What you’ll do:

• Design, develop, and test functionality for the latest app design.
• Support the entire application lifecycle (concept, design, test, release, and support).
• Collaborate with cross-functional teams to define, design, and develop new features.
• Take requirements and specs from design to development and be the first line of quality assurance.
• Understand user requirements—these apps have to meet real-world scenarios.
• Support the Supersub Mobile application in its entirety, including working on bug fixes and improving application performance, reliability and stability.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

What you bring:

• 3+ years of mobile software development experience.
• 3+ years of Kotlin Android development preferred.
• Solid Firebase & Firestore experience.
• Excellent decision-making skills with the ability to balance timeline vs features, while not sacrificing quality, and all within a fast-paced environment.
• Extensive knowledge in object-oriented software development, various architecture such as MVC/MVVM/MVP, multithreading, networking and memory management.
• Knowledge of standard Android libraries and frameworks.
• Strong analytical, prioritization, and troubleshooting skills.
• Excellent written and verbal communication skills.
• Advanced knowledge of Android SDK, including relevant frameworks, such as testing and mocking frameworks, REST clients, dependency injection, etc.