Senior Deployed Engineer

Job Description

Appealing Points:

• Opportunity to work on cutting-edge AI products leveraging modern technologies such as LLMs, RAG architectures, Hybrid Search, and AI Guardrails
• Exposure to a modern full-stack environment using React, FastAPI, Kubernetes, Terraform, and cloud-native development practices
• A high-ownership role where engineers can actively contribute to architecture decisions, technical strategy, and team leadership while growing their technical expertise

Annual Salary:  7 Million yen and above

Job Qualification:

• 4 to 6 years of software development experience
• Experience building production-grade software systems, including exposure to AI-enabled or data-driven systems
• Proven ability to independently own features and contribute to architectural decisions
• Architecture & System Design
  • Strong understanding of microservices architecture patterns and service decomposition
  • Experience implementing Test Driven Development (TDD) and structured testing practices
  • Strong understanding of database design principles across SQL and NoSQL systems
  • Ability to design scalable, maintainable, and resilient application components
• Frontend Development
  • Strong experience in React development
  • Experience building responsive interfaces using Tailwind CSS
  • Familiarity with Next.js or Remix frameworks
  • Understanding of SSE (Server-Sent Events) for real-time communication and streaming interactions
• Backend Development
  • Strong hands-on experience with Python development
  • Strong expertise in FastAPI and modern API development practices
  • Strong understanding of REST API principles, service integration, and backend architecture
  • Experience building scalable backend workflows and asynchronous processing patterns
• AI / ML Engineering
  • Strong understanding of LLM integration patterns and AI application workflows
  • Hands-on experience implementing advanced RAG architectures
  • Experience with Hybrid Search and Re-ranking strategies for retrieval optimization
  • Experience designing and maintaining evaluation loops for model quality and response consistency
  • Experience implementing Guardrails for safe and reliable AI behaviour
• Data Engineering
  • Experience in data exploration and profiling
  • Experience building and maintaining data pipelines
  • Understanding of data quality validation and data integrity practices
  • Familiarity with structured and semi-structured data handling patterns
• DevOps & Cloud Engineering
  • Strong working knowledge of Docker and Kubernetes
  • Experience implementing and maintaining CI/CD pipelines
  • Hands-on experience with Infrastructure-as-Code (Terraform)
  • Understanding of cloud-native deployment patterns and release management
• Soft Skills
  • Strong ownership and accountability for delivery outcomes
  • Ability to communicate technical trade-offs and architecture decisions clearly
  • Strong collaboration and adaptability in cross-functional teams
  • Leadership capability in guiding junior engineers and supporting team delivery
  • Strong problem-solving mindset with structured scenario analysis
  • Ability to translate business requirements into technical implementation plans
  • Reliability mindset with focus on system stability and maintainability
  • Openness to feedback and continuous improvement

Nice to Have

• Experience with LLM orchestration frameworks such as LangChain or similar
• Exposure to vector databases and semantic search systems
• Experience working with cloud platforms (AWS, Azure, GCP)
• Experience in AI-first product or platform engineering environments
• Experience supporting enterprise-scale AI implementations

Japanese Language: Fluent Japanese level N1 and Business level English

Company Description

The company has a singular focus on the Connectedness vertical, partnering with the leading creators of our hyper-connected world. Customers range from telecom operators, digital/multi-service providers (D/MSPs), and technology and digital platform companies in the business of connectedness. The company builds, integrates, and operates solutions enabling next-generation technologies and innovations. Services global leaders including Verizon, CenturyLink, Adtran, Vodafone, Liberty Global, Windstream, Virgin Media, Rogers, and Deutsche Telekom among many others. The company’s customers today help more than a billion people and five billion devices stay connected.