About The Role:
As a Senior Mobile Developer you will work as part of an Agile development team to deliver capabilities for our Over the Road (OTR) product suite. You will be joining a team of developers and product stakeholders who have a passion for creating value for our customers by simplifying the business of doing business. You will play a pivotal role in designing, developing, testing, and maintaining high-quality mobile software applications. You will leverage your extensive experience and technical expertise to lead projects, mentor junior developers, and ensure the successful delivery of complex software solutions.
How you’ll make an impact
By being a highly motivated engineer who loves working on high performing, agile teams
By being collaborative, an exceptional communicator, and someone who works well with your team and stakeholders.
By being someone who is deeply invested in the outcomes produced by their team, checking your ego at the door, and taking pride in owning the results.
By being a professional who can advocate strongly for positions and still be 100% behind team decisions even if they don’t go your way.
By balancing the need to move fast with the realities of working in a highly regulated space like payments.
By coaching and mentoring team members on appropriate software engineering principles and accountability
By doing what it takes to ensure the success of your team!
Experience you'll bring
Architect, design, and develop mobile application features that enhance core offerings and provide a seamless user experience for a large user base. This includes:
Translating designs and wireframes into high-quality, clean, and efficient code.
Building reusable components and libraries for future use.
Optimizing mobile app performance for different devices and network conditions.
Hands-on experience with consuming and integrating RESTful APIs.
Analyze business requirements and user needs to design and develop mobile solutions that meet customer expectations.
Collaborate with cross-functional teams, including product managers, UX designers, and other engineers, to define and implement new features.
Craft systems designs, lead design decisions, and drive alignment with other senior engineers.
Write automated unit tests, integration tests, end-to-end tests, concurrency tests, load/performance tests.
Analyze existing systems to identify bottlenecks, tech debt, and implement scalability, and stability improvements.
Implement automation for testing, monitoring, healing, and scaling applications, continuous integration and deployment to reduce time to market
Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level engineers, and actively promote engineering best practices.
Dive deep and troubleshoot complex issues, devise fixes, author root cause analysis documents, and ensure lasting performance and reliability.
Conduct objective and comparative analyses of competing technologies to advise the team of pos and cons of a technology solution
Maintain robust documentation (design docs, run books, change management docs, and readiness plans)
Provide live-site support for production applications by monitoring systems, ensuring rapid incident resolution, and driving continuous improvement.
Drive cross-team projects as a single-threaded-owner (STO) or tech lead, and actively unblock other engineers to make progress.
Bachelor's degree in Computer Science or related field and 5+ years of experience specifically in Android mobile development
Demonstrate expertise in:
Kotlin: Strong proficiency in Kotlin development (primary language for Android).
Java: Familiarity with Java for maintaining and understanding legacy code (if applicable).
Android SDK: Deep knowledge of the Android SDK and its components.
Android Frameworks: Experience with popular Android frameworks and libraries (e.g., Jetpack Compose, Retrofit, Room).
UI/UX Design: Solid understanding of Android UI/UX design principles and Material Design guidelines.
API Integration: Proven experience consuming RESTful APIs, handling JSON data, and implementing network communication.
Strong understanding of Android app development lifecycle, best practices, and architectural patterns (MVVM, MVP).
Experience with cloud platforms (Firebase, AWS, Azure, Google Cloud) and mobile backend services.
Possess and demonstrate exceptionally strong and upfront communication skills and a customer-centric focus.
End-to-end development experience in Android apps is required (concept to publishing on Google Play Store).
Experience with security best practices in Android development.
Experience with performance optimization, memory management, and background tasks in Android.
Knowledge of Android testing frameworks (JUnit, Espresso).
Preferred Qualifications:
Master’s degree in computer science or software engineering.
Good experience in software engineering.
Published examples of Android applications on the Google Play Store.
Ability to work on existing codebase, contribute improvements, and adapt to legacy systems’ constraints.
Top Skills
What We Do
We simplify complex payment systems for fleets, corporate payments, and healthcare—unlocking insights, opportunities, and efficiencies to give you greater control of your business.
Powered by the belief that complex payment systems can be made simple, WEX (NYSE: WEX) is a leading financial technology service provider across a wide spectrum of sectors, including fleet, travel and healthcare. WEX operates in more than 10 countries and in more than 20 currencies through approximately 4,900 associates around the world. WEX fleet cards offer approximately 14 million vehicles exceptional payment security and control; our travel and corporate solutions business processes over $35 billion of purchase volume annually; and the WEX Health financial technology platform helps 343,000 employers and more than 28 million consumers better manage healthcare expenses.
