Principal Backend Engineer (TypeScript, Rust, NodeJS)

MUST-HAVE REQUIREMENTSFor this position, the following are strongly requested. 8+ years of hands-on experience developing backend systems for web application Experience with technology verification, requirements analysis, architecture design, and infrastructure construction for development teams or multiple projects. Experience in resolving issues related to technology, product, or development process. Experience in back-end development and operation of web applications using statically typed languages & framework Proficiency in developing within a Docker native infrastructure environment. Fluent business communication skills in English, ability to complete daily tasks in English, including text communication and meetings.（CEFR B1 or Higher level)  NICE-TO-HAVE REQUIREMENTS Experience in design and development of large systems across multiple teams Experience in development based on domain-driven design. Experience working with Scrum or Agile methodologies. Experience developing in languages with strong statically typed and functional elements such as Rust, Scala, etc. Knowledge of front-end development, libraries & framework such as Reactjs, Next.js is a plus. Experience designing, developing, and operating microservices. Experience developing security-conscious web applications. Business level Japanese proficiency.  WE ARE LOOKING FOR THIS KIND OF PERSON Those who can sympathize with CADDi's mission “Unleashing the Potential of the Manufacturing Industry”. Those who have a T-shaped ambition mindset to maximize their expertise by not only focusing on back-end and infrastructure, but also catching up on peripheral knowledge as needed. Those who are able to face essential issues and take action to solve them with a sense of ownership. Able to work through positive attitude and constructive discussions in fast-changing and uncertain situations. Able to communicate and discuss with an attitude of respect for others, taking into consideration their context and resolution  PRODUCT DEVELOPING ENVIRONMENT Front-end:TypeScript, React, Next.js Backend: Rust(axum),TypeScript, Node.js (Express,Fastify,NestJS) Machine Learning/Algorithms: Rust, Python, OpenCV, PyTorch,TorchServe, Elasticsearch, Vertex AI Infrastructure: Google Cloud, Google Kubernetes Engine, Anthos Service Mesh, Istio, Cloudflare, Argo Workflows Event Bus: Cloud Pub/Sub DevOps: GitHub, GitHub Actions, ArgoCD, Kustomize, Helm, Terraform, Datadog, MixPanel, Sentry Data: CloudSQL (PostgreSQL), AlloyDB, BigQuery, dbt, trocco API: GraphQL, REST, gRPC Authentication: Auth0 Development tools:GitHub Copilot, Figma, Storybook Communication Tools: Slack, Discord, JIRA, Miro, Confluence  RECRUITING STEPS CV screening Technical assignment (online coding test) * We place more importance on whether you can imagine that you can work together with us to develop a product, rather than on your knowledge of algorithms or the speed of your answers. Online English speaking test Technical interview (with engineer) HR casual talk *This stage does not involve selection criteria; it serves as an opportunity to align on conditions and clarify any questions regarding the selection process. Final interview (with CTO) Offer meeting Please note that, depending on the situation, additional interviews or discussions may be proposed. If desired, we can arrange casual interviews with employees even during the selection process. Please feel free to consult with us. The average time from application to offer is about one month, but if you are in a hurry, please let us know. We will do our best to adjust the schedule to fit your job search timeline.