高级Android工程师

About Us At Money Forward, we are dedicated to transforming financial services using advanced technology. With over 50 services for individuals and businesses, including popular products like Money Forward ME and Money Forward Cloud, we help make managing money easier. We use “account aggregation” technology to gather user data, turning it into useful insights for our customers. Our company has reached a turning point from "Cloud to AI" and is accelerating company-wide AI Transformation (AX) toward achieving our goal of becoming the "No. 1 Back-Office AI Company in Japan" under "Money Forward AI Vision 2026(https://www.linkedin.com/pulse/full-transcript-money-forward-announced-ai-strategy-vision-phwoc/?trackingId=sl33ZIGRFzkBJJv7wI9qsg%3D%3D)." Leveraging our robust customer base of over 440,000 companies and years of accumulated business logic, we are expanding beyond the traditional SaaS market into the ¥14.1 trillion "Digital Worker" market, where autonomous AI agents substitute and augment human labor. To turn this grand ambition into reality, we are driving "AI-PDLC / AI-SDLC (AI-Driven Development)" to redefine the product development process itself. We are seeking engineers who want to look beyond simple SaaS feature additions—redefining architecture and user experiences using cutting-edge AI agent technologies to co-create next-generation products across job functions. Overview We are looking for a Senior Android Engineer to join the Sole Proprietor Development Division within the Money Forward Business Domain. Our mission, "Moving work and life forward for individual workers", drives us to develop innovative solutions that simplify and enhance professional lives. Our flagship offerings include Cloud Tax Return (クラウド 確定申告(https://biz.moneyforward.com/tax_return/)), Cloud Business Registration (クラウド 開業届(https://biz.moneyforward.com/campaign/starting-business/43088/?provider=google&provider_info=stbiz_gs_ge_pc_kwd-985727368_&utm_source=google&utm_medium=cpc&utm_campaign=stbiz_gs_ge_pc_kwd-985727368_&saf_src=google_g&saf_pt=&saf_kw=%E9%96%8B%E6%A5%AD&saf_dv=&saf_cam=12425995165&saf_grp=123992269851&saf_ad=502853354399&account_id=4197001400&saf_acc=4197001400&saf_cam_tp=search&gad_source=1&gad_campaignid=12425995165&gbraid=0AAAAACc4bZPNDDexOxU4xVeaZxItuBnQt&gclid=CjwKCAjwiezABhBZEiwAEbTPGHa6cElzds8S4PWXkg8eKJz81oaBsYIagNg-PEOtiY8JvG_4WsRTZxoCp-UQAvD_BwE)) and Cloud Company Registration (クラウド 会社設立(https://biz.moneyforward.com/campaign/establish/20369/?provider=google&provider_info=est_gs_br_kwd-392405242700_&utm_source=google&utm_medium=cpc&utm_campaign=est_gs_br_kwd-392405242700_&saf_src=google_g&saf_pt=&saf_kw=%E3%83%9E%E3%83%8D%E3%83%BC%E3%83%95%E3%82%A9%E3%83%AF%E3%83%BC%E3%83%89%20%E4%BC%9A%E7%A4%BE%E8%A8%AD%E7%AB%8B&saf_dv=&saf_cam=15066552855&saf_grp=127251014765&saf_ad=555942910007&account_id=4197001400&saf_acc=4197001400&saf_cam_tp=search&gad_source=1&gad_campaignid=15066552855&gbraid=0AAAAACc4bZNYJlr7CD7hUOeTBF8Bh4YME&gclid=CjwKCAjwiezABhBZEiwAEbTPGJH9TUlUNZf7bRMQhyOTAXcW8OymXveXN6_ioGH_bFGXzrz3cNYkLRoCU6sQAvD_BwE)) As our product and user base continue to grow, we are expanding our Android team to improve development speed, quality, and reliability. You will play a key role in driving technical initiatives, improving architecture, and contributing to a better user experience on our Android platform. Responsibilities and Role Design, develop, and maintain our Android application to increase the value of Money Forward Cloud for our users, focusing on usability, performance, and reliability. Continuously improve the development process to maximize team performance, including refining workflows, enhancing code review practices, and automating routine tasks. Propose and implement improvement measures based on qualitative and quantitative data, including log analysis, analytics, and user interview results. Select appropriate technologies, architecture designs, and libraries, leading technical discussions and decision-making within the team. Collaborate with web and backend engineers to define and implement API contracts, align business logic, and deliver seamless features across platforms. Lead or contribute to feature implementation, refactoring, dependency updates, bug fixes, and continuous code quality maintenance. Job Satisfaction and Experience Gained You will have opportunities to propose and implement improvement measures leveraging both data analysis and user interview results, allowing you to directly influence product direction and user value. By working on system and process design in a growing organization, you will gain hands-on experience in building new development workflows, quality assurance practices, and team structures from the ground up. You will be encouraged to expand beyond Android and, depending on your aspirations, participate in iOS, Rails, TypeScript, and other technology stacks, enabling you to build a broad and versatile skill set. You will also gain experience collaborating with cross-functional teams (such as product managers, designers, and backend engineers) and in communicating with stakeholders in English, enhancing your leadership and communication skills in an international environment. Beyond core Android engineering, this position offers extensive opportunities to engage in full-stack and web development, allowing you to contribute across the entire technical stack and expand your career scope. Required Skills and Experience At least 3 years of practical experience as an Android app engineer (5+ years preferred), including involvement in mid- to large-scale applications. Strong knowledge of Kotlin and Kotlin Coroutines, with the ability to write clean, safe, and maintainable asynchronous code. Practical knowledge of Jetpack Compose and experience building UI with modern Android UI frameworks. Development experience using design patterns such as MVVM or similar architectures, with an understanding of separation of concerns. Practical experience reviewing code and providing constructive feedback focused on maintainability and quality. Knowledge of unit testing, UI testing, and testing strategies to ensure reliability in a continuous delivery environment. Hands-on development experience with web applications (e.g., React/Next.js, TypeScript) to support full-stack feature implementation. Practical knowledge developing Web APIs and collaborating with backend engineers, including API contract design. Hands-on experience leveraging AI development tools to assist in engineering tasks such as architecture design, implementation, refactoring, testing, and troubleshooting, while prompting models effectively, evaluating output for security/quality, and maintaining data privacy. Preferred Skills and Experience Development experience with iOS or web applications to collaborate effectively across platforms. Knowledge of GraphQL and integrating GraphQL-based APIs into mobile applications. Knowledge of Material Design and experience applying design systems for consistent user interfaces. Knowledge of design tools such as Figma to collaborate smoothly with designers. Practical experience in team development using Scrum or other Agile methodologies. Experience in AI development and/or experience in using AI tools to improve development processes. Money Forward is at a major turning point, shifting "from Cloud to AI." We are currently driving "AX (AI Transformation)"—the next step beyond DX—with the goal of providing "Digital Workers," where AI agents autonomously execute tasks. As we enter a phase of evolving into Japan's No. 1 back-office AI company by integrating AI agents into all of our products in the future, we are looking for individuals who can contribute to AI-driven development and value creation.(More information here(https://www.linkedin.com/pulse/full-transcript-money-forward-announced-ai-strategy-vision-phwoc/?trackingId=sl33ZIGRFzkBJJv7wI9qsg%3D%3D)) Language Requirements English: Business level (particip