Software Engineer - Full stack or Backend Engineer

Description 【募集の背景 / Purpose & Scope】 This position is responsible for the development and maintenance of both frontend and backend systems that support Astellas' generative AI platforms and digital transformation efforts. The role exists to provide full-stack solutions, ensuring robust performance, scalability, and seamless integration of AI-driven applications across commercial, manufacturing, and medical operations. 【職務の内容 / Essential Job Responsibilities】 （雇入れ直後）

• Develop and maintain full-stack applications using frontend frameworks like React, Angular, or Vue.js, and backend technologies like Python, Java, or Node.js.
• Design and implement APIs (RESTful and GraphQL) to enable AI model interactions and data processing.
• Manage and optimize both SQL and NoSQL databases for efficient data storage and retrieval.
• Implement DevOps practices, including CI / CD pipelines, containerization (Docker / Kubernetes), and automated deployments.
• Collaborate with cross-functional teams to ensure continuous improvement, security, and performance of AI-driven systems.
• Mentor junior team members and contribute to the growth of the engineering chapter. （変更の範囲） 会社内での全ての業務 【就業環境に関する要件 / Specific Physical or Environmental Requirements】 At Astellas we recognize the importance of work / life balance, and we are proud to offer a hybrid working solution allowing time to connect with colleagues at the office with the flexibility to also work from home. We believe this will optimize the most productive work environment for all employees to succeed and deliver. Hybrid work from certain locations may be permitted in accordance with Astellas’ Responsible Flexibility Guidelines. 【応募要件 / Qualifications】 ＜必須 / Required＞
• Proven experience in both frontend (HTML, CSS, TypeScript, JavaScript, React) and backend (Python, Java, Node.js) development.
• Expertise in API development and integration (RESTful and GraphQL).
• Strong understanding of SQL and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Familiarity with cloud platforms like Azure and AWS, as well as containerization tools like Docker and Kubernetes.
• Experience with application monitoring tools (App Insights, CloudWatch).
• Strong analytical, problem-solving, and debugging skills. ＜歓迎 / Preferred＞
• Experience with full-stack development frameworks such as Django, Node.js, or similar.
• Familiarity with CI / CD tools and DevOps best practices.
• Experience in working in a highly collaborative environment with cross-functional teams.