WEX · 1 week ago
Senior Mobile Developer
United States
Full-time
Remote
Mid, Senior Level
$120K/yr - $160K/yr
5+ years expWEX is seeking a Senior Mobile Developer to join their Agile development team for the Over the Road (OTR) product suite. The role involves designing, developing, testing, and maintaining high-quality mobile software applications while mentoring junior developers and ensuring successful project delivery.
Financial ServicesFinTechPaymentsSoftware
Responsibilities
Architect, design, and develop mobile application features that enhance core offerings and provide a seamless user experience for a large user base
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
Qualification
Required
Bachelor's degree in Computer Science or related field and 5+ years of experience specifically in Android mobile development
Strong proficiency in Kotlin development (primary language for Android)
Familiarity with Java for maintaining and understanding legacy code (if applicable)
Deep knowledge of the Android SDK and its components
Experience with popular Android frameworks and libraries (e.g., Jetpack Compose, Retrofit, Room)
Solid understanding of Android UI/UX design principles and Material Design guidelines
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
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
Benefits
Health, dental and vision insurances
Retirement savings plan
Paid time off
Health savings account
Flexible spending accounts
Life insurance
Disability insurance
Tuition reimbursement
Company
WEX
Wex is a financial technology service provider for fleet, travel and healthcare industries.
5001-10000 employees
H1B Sponsorship
WEX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (22)
2024 (10)
2023 (12)
2022 (20)
2021 (14)
2020 (18)
Funding
Current Stage
Public CompanyTotal Funding
$900MKey Investors
Warburg Pincus
2025-02-25Post Ipo Debt· $500M
2020-06-30Post Ipo Equity· $90M
2020-06-30Post Ipo Debt· $310M
Leadership Team
Melissa Smith
Chair and Chief Executive Officer
Sachin Dhawan
Chief Technology Officer
Recent News
Morningstar.com
2026-01-22
2026-01-20
2026-01-20
Company data provided by crunchbase