Senior AI Engineer
Treasure AI:
Treasure AI is the agentic experience platform built to acquire, retain, and grow your most valuable customers. Powered by AI, Treasure AI is shaped by human creativity and always-on through continuous, context-driven action.
Furthermore, Treasure AI employees are enthusiastic, data-driven, and customer-obsessed. We are a team of drivers—self-starters who take initiative, anticipate needs, and proactively jump in to solve problems. Our actions reflect our values of honesty, reliability, openness, and humility.
About the Role:
We're looking for an AI Engineer to join our AI Agent Development team. You'll design and build autonomous AI agents that help customers extract insights from their data, automate complex workflows, and make intelligent decisions. This role combines AI/ML expertise with full-stack development skills to create both backend systems and frontend interfaces for agent interactions. This position is ideal for someone who's passionate about creating production-ready AI systems that can reason, plan, and act independently while serving global enterprise customers.
What You'll Do
Design and implement autonomous AI agents using multi-modal LLMs, function calling, and tool integration
Build full-stack applications with backend APIs and frontend interfaces for agent interactions
Develop agent orchestration systems that can handle complex multi-step workflows and decision-making
Create evaluation frameworks to measure agent performance, reliability, and safety
Collaborate with product teams to translate customer needs into agent capabilities
Contribute to agent safety measures, including guardrails and monitoring systems
Stay current with the latest developments in AI agents, LLM research, and autonomous systems
About You
5+ years of professional software engineering experience
Full-stack development experience with both backend and frontend technologies
Strong context engineering skills and experience crafting effective prompts for LLMs
Experience building AI agents with capabilities like planning, reasoning, and tool usage
Understanding of Large Language Models (LLMs) and agent architectures
Solid understanding of SQL and experience working with relational databases in production
Proficient in modern software testing practices and advocating for code quality
Exposure to AWS or similar cloud infrastructure environments
Business-level English proficiency
Strong team player with good communication and documentation skills
Bonus Experience
Not required, but nice to have:
Experience with Ruby/Ruby on Rails and/or JavaScript/React (helpful but not mandatory)
Experience with AI/ML frameworks (LangChain, CrewAI, AutoGen, or similar)
Experience with agent evaluation frameworks and testing autonomous systems
Knowledge of multi-agent systems and agent coordination patterns
Familiarity with MLOps tools and practices for AI model deployment
Knowledge of agent safety and alignment techniques
Why You'll Love Working Here
Work on high-impact projects with real-world applications in AI and data
Learn from and collaborate with talented engineers, designers, and product managers
Be part of a remote-friendly, flexible workplace with a global team
Enjoy mentorship opportunities and professional growth
Competitive salary, benefits, and a modern, collaborative work culture
Physical Requirements:
3 days in Treasure AI Office
Our Dedication to You:
We value and promote diversity, equity, inclusion, and belonging in all aspects of our business and at all levels. Success comes from acknowledging, welcoming, and incorporating diverse perspectives.
Diverse representation alone is not the desired outcome. We also strive to create an inclusive culture that encourages growth, ownership of your role, and achieving innovation in new and unique ways. Your voice will be heard, and we will help amplify it.
Agencies and Recruiters:
We cannot consider your candidate(s) without a contract in place. Any resumes received without having an active agreement will be considered gratis referrals to us. Thank you for your understanding and cooperation!
- Department
- Engineering | R&D
- Role
- Senior Software Engineer
- Locations
- Tokyo, Japan
- Remote status
- Hybrid
- Employment type
- Full-time
- Employment level
- Professionals
About Treasure AI
Treasure AI moves marketing and data teams beyond legacy martech SaaS toward autonomous, ROI-driven AI agents that operate continuously, while keeping the human in the loop. With built-in governance, Treasure AI is powered by an always-up-to-date understanding of each customer for AI to act on.
The result is always-on marketing execution that compounds over time: smarter engagement, stronger retention, and measurable growth.
Treasure AI’s agentic experience platform is available across web, mobile, and desktop — bringing your customer intelligence to every workflow, wherever your team works.