Tokyo ビルドプラス(旧ウォールアンドケース)
Senior AI Engineer – Build the Future of Manufacturing Intelligence
Tokyo / Remote (Japan) | ¥7M–¥12M + Stock Options | Full-time

About the Company
We're a fast-growing technology company on a mission to unleash the potential of the manufacturing industry. Our flagship AI-powered data platform structures and analyzes complex manufacturing data—drawings, CAD files, and beyond—turning it into actionable insights.

Launched just a few years ago, it's already transforming workflows for leading manufacturers in Japan and expanding globally (including the US, Thailand, and Vietnam).

Now entering our next growth stage, we're building new AI-driven applications, scaling our infrastructure for massive datasets, and tackling some of the most challenging data problems in manufacturing.

The Role

As a Senior AI Engineer, you'll work across the full ML lifecycle—from ideation to production—to turn rich manufacturing datasets into real-world impact.

You'll prototype new features, run PoCs, collaborate with product managers and domain experts, and develop robust, production-grade AI solutions.

What You'll Do
Design, prototype, and implement machine learning models (including LLMs, optimization algorithms, and computer vision).
Rapidly validate ideas through PoCs and user feedback loops.
Work closely with manufacturing experts to solve high-impact industry challenges.
Build and operate scalable AI systems using Python, Rust, GCP, Kubernetes, and more.
Contribute to product strategy and technology choices as a founding member of new AI initiatives.

What You'll Bring
5+ years of ML model development and deployment experience.
Strong fundamentals in ML, statistics, linear algebra, and algorithms.
Proven track record applying AI to solve business problems.
Experience with API development, cloud platforms (GCP/AWS), and container tech.
Business-level Japanese (N2 equivalent or higher).

Nice-to-Haves
Experience shipping ML models in production products.
Knowledge of numerical optimization, GPU computing, or MLOps best practices.
Product management or ML team leadership experience.

Why Join Us?
We know that attracting top talent means offering top-tier rewards.


Joining us means you'll get:
Competitive Pay – ¥7M–¥12M base salary plus performance bonuses and stock options.
Ownership & Impact – Stock options to share in the company's growth and success.
Twice-Yearly Salary Reviews – Because your value grows as the company grows.
Remote & Flexible Work – Work from anywhere in Japan with a Tokyo HQ available for in-person collaboration.
Support for Your Life – Commuting allowance, home office setup subsidy, and child/family support programs.
Time to Recharge – Generous paid leave, special leave for family events, and even pet care leave.
Grow Without Limits – Annual training budgets, tech conference sponsorships, and mentorship opportunities.
Stay Connected – Regular offsite retreats, team-building events, and knowledge-sharing sessions.

Tech Stack
Rust, Python, TypeScript, PyTorch, Vertex AI, React, , Kubernetes, BigQuery, Docker, Terraform, GitHub Copilot.
Work Style
Remote-first with optional Tokyo office; flex-time (core 11:00–16:00).

If this sounds like your next challenge, let's connect.
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