Contract Flutter App Developer Jobs in California

Job Summary:
Agoda is a leading travel platform that connects people to destinations and experiences. In this role, you will design and develop Android applications, collaborate with various teams to deliver user experiences, and drive best practices in engineering and testing.
Responsibilities:
• Design, develop, and maintain Android applications that integrate with the platform’s core services and APIs
• Partner closely with Product, Design, Backend, and Mobile engineers to define requirements, design features, and deliver cohesive user experiences
• Drive engineering best practices for testing, quality assurance, and release readiness, including automated testing strategies
• Build and evolve reusable platform components (SDKs, internal libraries, shared UI/infra patterns) to accelerate multiple product teams
• Contribute to or lead initiatives involving WebView-based architecture, including performance, security, debugging, and deep integration with native modules
• Improve developer velocity via CI/CD pipelines for mobile (build, test automation, release flows, quality gates)
• Raise reliability standards by improving observability: performance monitoring, crash analysis, app/service metrics, logging, and alerting
• Identify and implement opportunities for optimization across the technology stack, focusing on cost, efficiency, velocity, and developer happiness
• Enable cross-team collaboration on large initiatives, improving overall code quality, architecture, and platform consistency
• Provide thoughtful feedback and mentorship, fostering an inclusive engineering culture and strong engineering fundamentals
• Communicate complex technical trade-offs clearly to stakeholders across levels, including non-technical partners
Qualifications:
Required:
• 8+ years of software development experience building large-scale applications; strong craft in either native app engineering (Android) or web engineering, with openness to working across both when needed
• 3+ years in a Tech Lead (or equivalent) role, owning execution and technical direction end-to-end
• Proven experience owning production systems with significant impact on design, development, deployment, monitoring, and long-term evolution
• Strong engineering leadership: mentoring senior engineers, influencing across teams, and driving alignment through clear communication
• Advanced proficiency in modern app development frameworks and architectural choices (scalable patterns, modularization, maintainability)
• Strong understanding of app development challenges and solutions: performance, stability, backwards compatibility, and security
• Expert-level knowledge of testing methodologies and best practices; ability to drive end-to-end test strategy (e.g., UI/E2E automation)
• Practical experience improving engineering throughput through CI/CD (automated builds, test pipelines, release workflows)
• Ability to use data and telemetry to guide improvements; experience with observability for app/service performance is a strong advantage
• Strong problem-solving: can do deep research, make decisions on complex projects, and balance independence with collaboration
• Bachelor’s degree in Computer Science, Engineering, or related field
Preferred:
• Experience working across both native mobile and web applications (one strong core skill is enough; openness to the other is key)
• Experience in a platform team building reusable solutions used by multiple teams/products
• Hands-on experience with WebView internals (rendering/performance/debugging, JS bridges, security, architecture decisions)
• Proficiency in writing and maintaining end-to-end tests (e.g., Espresso/UI Automator/Detox/Appium or equivalents depending on stack)
• Experience building or maintaining CI/CD for native apps (build automation, test automation, release management, feature flags)
• Experience with observability (crash analytics, performance monitoring, tracing/metrics/logging, SLO-driven improvements)
• Experience in scaled product/internet companies with high traffic, large user bases, and high transaction volume
• Experience with cross-platform technologies (React Native, WebViews, Flutter, etc.) and making pragmatic trade-off decisions
Company:
Agoda is a digital travel platform that provides access to hotels and holiday properties including flights. It is a sub-organization of Booking Holdings. Founded in 2005, the company is headquartered in Singapore, SGP, with a team of 5001-10000 employees. The company is currently Late Stage.