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Senior Staff Software Engineer / キャディ株式会社

Salary: 1500 - 2500 百万円

Japanese: Fluent
CADDi

Senior Staff Software Engineer

Overview

We are looking for a Senior Staff Software Engineer to drive large-scale architecture transformation and lead technical breakthroughs across a global engineering organization. This role goes beyond any single department or product—collaborating with executive leadership to develop and execute company-wide technical strategies and next-generation platforms that will redefine the manufacturing industry.

Mission

Unlock the potential of the manufacturing industry by building an "AI Data Platform for Manufacturing" and creating a new global industry OS.

Role Expectations

As a top-tier technical leader, you will:

  • Formulate and execute comprehensive technical strategies aligned with business and long-term management plans, in close collaboration with executive and engineering leadership.
  • Not only advise, but also take a hands-on approach, creating resilient architectures and engineering foundations to scale the business globally.
  • Drive fundamental architectural renewal and resolve technical debt across the company.
  • Design next-generation platforms to support new business ventures.

Example Responsibilities

Note: Not limited to the following

  • Lead Global Technical Strategy & Architecture
    • Develop technical roadmaps to enable non-linear business growth (scaling 10x and beyond).
    • Design and drive "next-generation platform architecture" enabling independent evolution of multiple interconnected products.
  • Architect Fundamental Paradigm Shifts
    • Reimagine and overhaul company-wide technical foundations, transforming towards an "AI-native organization" and breaking productivity deadlocks.
  • Technical Decision Making & Quality Governance
    • Establish and implement global standards for security, performance, and scalability.
    • Review and support complex system designs involving multiple teams.
  • Build Cross-Organizational Technical Solutions
    • Tackle foundational challenges that cannot be solved by a single team, architecting and deploying optimal company-wide solutions.

What Makes This Role Unique

  • Shape the Core Systems of a Global Tech Company
    • Lead system architecture from scratch across a multinational engineering organization.
  • Drive Societal Change Through Technology
    • Deliver significant societal value by transforming legacy manufacturing via technology.
  • Direct Business Impact
    • Influence key architectural decisions that determine the success and global growth rate of the business.
  • From Chaos to Order
    • Face the complexities of rapid growth and refine them into simple, robust systems.

Requirements

Must-Haves

  • World-class technical expertise and leadership.
  • Deep specialization in one or more technical domains, with the ability to take action beyond "full-stack" capabilities.
  • High abstraction ability: linking business/management strategy and technology for growth-oriented decision making.
  • Proven experience as a lead engineer or architect of multiple products or large-scale global systems.
  • Track record of designing large-scale, complex system architecture, resolving technical debt, and driving platformization to completion.
  • Fluent business-level Japanese communication skills (including ability to clearly explain complex technical concepts to non-engineers).

Nice-to-Haves

  • (Strongly Preferred): Business-level English ability (to collaborate with global engineering hubs).
  • Leadership experience as a Staff/Principal Engineer, CTO, VPoE, or equivalent at a global tech company or large-scale venture.
  • Deep involvement in product development across various growth phases.
  • Demonstrated leadership in architecting and commercializing AI/machine learning/data-driven products.
  • SaaS system design and growth experience in global markets such as North America.
  • Outstanding OSS contributions or high technical presence in the tech community.

Desired Personal Traits

  • Deep empathy for the mission to unlock the potential of manufacturing and a passion for industrial transformation.
  • Able to view technology as a means for scaling business and maximizing customer value, focusing on business outcomes when making technical decisions.
  • Able to design architecture for the future from a zero-base, unbound by existing norms or past success.
  • Possess strong technical gravitas, able to lead organizations through difficult technical challenges and chaotic situations.

Compensation & Benefits

  • Annual Salary: 15M – 25M JPY (approximate, negotiable upon entry)
  • Stock Option Plan: Available

Work Environment

  • Front-end: TypeScript, React, Next.js
  • Back-end: Rust (axum), TypeScript, Node.js (Express, Fastify, NestJS)
  • ML & Algorithms: Rust, Python, OpenCV, PyTorch, TorchServe, Elasticsearch, Vertex AI
  • Infrastructure: Google Cloud, GKE, Anthos Service Mesh, Istio, Cloudflare, Argo Workflows
  • Data: CloudSQL (PostgreSQL), AlloyDB, BigQuery, dbt, trocco
  • DevOps: GitHub, GitHub Actions, ArgoCD, Kustomize, Helm, Terraform, Datadog, MixPanel, Sentry
  • APIs: GraphQL, REST, gRPC
  • Authentication: Auth0
  • Tools: GitHub Copilot, Figma, Storybook
  • Communication: Slack, Discord, JIRA, Miro, Confluence

Selection Process

  • Informal introductory meeting
  • Document screening
  • Technical assessment (online coding test)
  • HR interview (discussion only, no evaluation)
  • First interview (VP/Engineering Manager—focused on experiences and achievements)
  • Work sample interview (discussion based on a prior assignment)
  • Final interview (CTO)
  • Offer meeting

Additional interviews may be scheduled as needed. The standard selection period is about one month; expedited processes available upon request.

Work Style & Conditions

Work Location

  • Generally, 1–3 days/week in-office for those in the greater Tokyo/Osaka area (frequency may vary by project phase).
  • For non-local employees: 1–2 business trips per month to Tokyo or Osaka offices.

Note: In-person communication may be required during major architectural changes. Remote/office policies adapt flexibly for performance maximization.

Work Hours

  • Flex time: Core hours 11:00–16:00

Employment

  • Full-time employee
  • Three-month probation period (no change in compensation or benefits)
  • Office location: Tokyo

Time Off

  • Full five-day work week (Saturday, Sunday, and national holidays off)
  • Annual paid leave (after six months) + special introductory paid leave (3 days)
  • Summer vacation (3 days, can be taken flexibly July–December)
  • New Year’s vacation (6 days)
  • Nursing/care leave (up to 4 days/year; includes pets)
  • Refresh leave (5 consecutive days every 5 years)
  • Condolence leave

Benefits

  • Commuting expenses reimbursed
  • Children's allowance (15,000 JPY/month per dependent under 18)
  • Club activity subsidies
  • Teaming offsite subsidy (5,000 JPY/person, quarterly)
  • Team meal subsidy (2,000–3,000 JPY/person, monthly)
  • Server cost subsidy (up to 10,000 JPY/month for engineers)
  • Book purchase support
  • External training fees covered

Life & Family

  • Parental/care leave available after probation
  • Marriage celebration allowance (50,000 JPY), childbirth celebration allowance (100,000 JPY)
  • Relocation assistance

Other

  • Social insurance (employment, accident, health, welfare pension)
  • Laptop provided
  • Full health screening costs covered (incl. women-specific screenings)
  • Corporate and departmental awards

Holidays

  • Complete 2-day weekends (Sat & Sun), national holidays
  • Paid vacation
  • Special leave for various life events

For further questions or discussion about work style, please ask during the hiring process.

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