Sr. Fullstack Engineer

Location: Burlingame, California (Hybrid Onsite)
Work Type: Contract

About the role

We are seeking a Senior Mobile Developer with deep expertise in Android application development using Kotlin. This individual will design, build, and maintain high-performance mobile applications, playing a key role in architecting scalable solutions and driving technical best practices. The role involves collaboration with product, design, QA, and backend engineering teams to deliver exceptional mobile experiences, with a focus on leveraging AI-Assisted tooling for development.

Responsibilities

• Design, develop, and maintain native Android applications using Kotlin.
• Architect scalable, maintainable, and high-performing mobile solutions.
• Build modern user interfaces using Jetpack Compose and Android UI frameworks.
• Implement and maintain application architectures such as MVVM, Clean Architecture, and modular design patterns.
• Integrate RESTful APIs and backend services to enable secure and reliable data exchange.
• Optimize application performance, stability, security, and responsiveness.
• Develop and execute unit tests, integration tests, and automated testing strategies.
• Participate in code reviews and provide technical leadership across the development team.
• Collaborate with Product Managers, UX/UI Designers, QA Engineers, and Backend Developers to deliver business-critical features.
• Troubleshoot production issues and implement long-term solutions.
• Contribute to CI/CD pipelines and mobile release processes.
• Mentor junior and mid-level engineers and promote engineering best practices.

Requirements

• 7+ years of software development experience, with a majority of time spent in Mobile/Kotlin development.
• Hands-on experience using AI-assisted tooling for development and workflows (e.g., Claude, Codex, Cursor, Gemini).
• Strong experience within Android Architecture and frameworks.
• Experience working with RESTful APIs and SDK.
• Experience with mobile testing frameworks such as JUnit and Espresso.
• Strong understanding of Agile software development methodologies.
• Strong knowledge of multithreading, concurrency, and asynchronous programming.

Preferred Qualifications

• Experience with React Native or cross-platform mobile frameworks.
• Experience with Kotlin Multiplatform (KMP).
• Experience building CI/CD pipelines using Jenkins, GitHub Actions, Bitrise, TeamCity, or similar tools.
• Knowledge of Firebase services.
• Experience working with mobile security, authentication, and encryption.
• Familiarity with cloud technologies such as AWS, Azure, or Google Cloud Platform.
• Experience publishing and maintaining applications in the Google Play Store.

Benefits

• Supplemental medical, dental, vision, life, and disability insurance plans.
• Employee Stock Purchase Program (ESPP).
• 401K program with company match after 12 months of tenure.
• Health Savings Account (HSA) on the HDHP plan.
• SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions.
• Corporate discount savings program and other discounts.
• On-demand training program and access to certification prep, technical and leadership courses/books/seminars after 6+ months of tenure.
• Certification discounts and perks for associations including CompTIA and IIBA.
• Dedicated customer service team for consultants and a certified Career Coach.