Japan Core- Full-Stack Engineer SA2- Shanghai

Job Title

Full-Stack Engineer

• Role Overview Responsible for end-to-end delivery from requirements to production: web/mobile frontend development backend services and data layer design and cloud deployment and operations. Focus areas include mainstream frontend frameworks and mobile solutions a Python/FastAPIbackend relational and non-relational databases (including Cosmos DB) and ensuring performance reliability and security compliance in cloud environments (including Azure).

Key Responsibilities

• Frontend

• Build reusable components and high-quality pages using React or Angular; drive design systems and componentization.

• Mobile development: React Native or hybrid solutions (Ionic/Capacitor/Cordova etc.) integrating native capabilities andoptimizinguser experience.

• Performance and security: code splitting/lazy loading caching and CDNs SSR/SSG ( Universal) XSS/CSRF protection CSP.

• Integrate with backend APIs (REST/GraphQL); implement robust error handling retries and versioning.

• Backend

• Design and implement high-performance APIs using Python FastAPI.

• Familiarity with frameworks.

• Solid Java programming foundation; proficient in design patterns and coding standards with strong understanding and hands-on experience in data structures and algorithms. (Satisfying either this item or the first item above is sufficient.)

• Familiar with one or more middleware technologies such as Redis Kafka MongoDB and Elasticsearch. Understandtheir underlying principles and be able toidentifyand resolve issues.

• Data modeling and storage: relational (PostgreSQL/MySQL etc.) and non-relational (Cosmos DB); indexing and query optimization.

• Asynchrony and reliability: concurrency caching (Redis) message queues.

• Security and compliance: OAuth/OIDC secrets and configuration management (Azure Key Vault).

• Engineering and Cloud Operations (Azure Preferred)

• Containerization and CI/CD: Docker GitHub Actions/Azure DevOps; environment management and releases.

• Infrastructure networking and identity:VNet Managed Identityloggingand monitoring (Azure Monitor/Application Insights).

• Frontend deployment and performance improvements: Azure Static Web Apps / Storage CDN / Front Door.

• Cost performance and capacity management; production issue troubleshooting and regression prevention.

Requirements (Must-Haves)

• Bachelors degree in computer scienceorrelatedfield.

• 2 years of relevant work experience.

• Proficient written and spoken Japanese and strong written English; able to independently communicate with Japanese clients in Japanese.

• Strong communication documentation and interpersonal skills.

• Frontend

• Proficient with React and/or Angular; expert in TypeScript.

• Mobile experience with React Native; understanding of mobile performance and interaction characteristics.

• Familiar withfront-endperformance optimization and security strategies.

• Backend

• Proficient in .

• Solid Python programming skills familiar withFastAPI(dependency injection middleware exception handling andOpenAPI) or expert in Java development and middleware technologies.

• Familiar with relational databases and SQL optimization; understanding of modeling for non-relational and cloud-native databases.

• Experiencewithconceptual understanding of Cosmos DB.

• Engineering and Cloud

• Experience configuring infrastructure on mainstream cloud platforms (Azure preferred): identity andsecretsmanagement logging and monitoringnetworkingand security.

• Familiar with containerization and CI/CD pipelines; able to independently handle deployment and operations.

• End-to-end product development experience; able to propose practical actionable solutions for performance tuning and security compliance.

• Nice-to-Haves

• Native mobile development (iOS/Swift Android/Kotlin).

• Salesforce experience:participatedin Salesforce integration or development (Apex LWC REST/SOAP APIs OAuth/SAML data sync/ETL) capable of integrating with backend services or the Azure ecosystem.

• Experience with Power Platform (Copilot Studio Power Apps etc.) preferred.

• AI/GenAI basic hands-on experience: experience calling mainstream LLM APIs (Azure OpenAI/OpenAI/Claude etc.); understanding of basic prompt engineering and retrieval-augmented generation (RAG); ability to useLangChain/LangGraphfor simple chains/tool invocation or agent orchestration; understanding of vector search and embeddings (Azure AI Search/common vector databases); able to integrate chat/retrieval features on the frontend with basic evaluation and monitoring awareness (e.g. Ragas logging and cost monitoring).

• Experience developing on SAP Business Technology Platform (including SAP Cloud Foundry environment SAPUI5 SAP Fiori SAP Integration Suite and SAP Build).

• Strong understanding of the software development lifecycle; Agile experience preferred.

• Prior work experience in Japan or fluent spoken English is a plus.