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Prompt Engineer

Tokyo - Remote

Are you looking

  • To make meaningful changes at the fastest-growing tech company in Japan?
  • For a fair, highly flexible, inclusive working environment where anyone, regardless of their background, can make an impact?
  • To build the next bold idea in customer acquisition and revenue growth through conversational commerce technology
  • For a place where things are not just fast - but they happen now? 

We Are Zeals - “Designing conversations. Driving conversions.”

Zeals is not another chatbot. Our automated chat solution and conversational technology change how consumers purchase or act online. Zeals converts customers who appear "unengaged" to become "valuable" through designed chat on Messaging Apps. Using AI-powered, human-designed conversation flows across chat platforms, Zeals enables brands to build personalized, automated conversations with their consumers and develop a deeper understanding of their preferences while creating a delightful, seamless shopping experience. Our last 3 years have been phenomenal. We have captured the heart of many businesses in Japan, with over 480 enterprises relying on our chat commerce offering to boost their mobile business.

The goal is simple: to “revolutionize hospitality on the Internet” by unlocking digital customer service experiences that were limited to physical stores previously. 

Just Getting Started…

With more than 480 enterprise companies worldwide already utilizing our product, we are perfectly poised to seize market share and fuel exponential growth in the US market, with an eye on global expansion. Investors have taken note of our potential, leading us to recently secure nearly $40 million in funding, backed by Salesforce Ventures.

 

As our Prompt Engineer

Your typical day with us will involve leading the development of user-facing conversational AI features, designing and testing reusable prompts as part of a broader system, and ensuring our AI applications are optimized for efficient, natural, and personalized conversational experiences in English and Japanese. You will collaborate closely with cross-functional teams to deliver scalable and flexible experiences, all while mentoring members of non-technical staff on prompt engineering best practices and contributing to the overall technical direction of the prompt engineering team.

Your Typical Day With Us:

  • Design, develop, and implement a series of dynamic prompts for our conversational AI applications, ensuring high performance, scalability, and user engagement.
  • Contribute to and expand the design of a system of reusable, flexible prompts that prioritize scale and personalization across myriad tenants, industries, and modalities.
  • Conduct recurring tests of prompt performance prior to implementation to properly set business expectations for quality, security, and cost by model, model provider, tenant, and industry.
  • Participate in on-call monitoring of AI feature performance and remedy any issues that arise due to technical difficulties.
  • Educate non-technical members of the organization on prompt engineering foundational concepts, best practices, and tool usage.
  • Ensure the technical feasibility of feature requests from non-technical staff, collaborating closely with the business and product teams to deliver compelling and natural conversational user experiences.
  • Gather feedback on product performance, user experience, language experience, and quality from technical and non-technical staff alike, and cleanly organize data into quickly digestible reports for executive management.
  • Optimize prompt performance to ensure fast output times, API calls, and overall application responsiveness.
  • Collaborate with backend engineers to define API requirements, ensuring seamless integration between prompts, third party model providers, and backend systems.
  • Integrate closely with product leadership to shape the vision and roadmap for AI product functionality according to business needs and cutting-edge developments in generative AI.
  • Stay updated with the latest trends and technologies in prompt engineering, prompt defense, and generative AI development, continuously improving the team's skill set and technical direction.
  • Participate in cross-functional meetings to align prompt engineering with product goals, business targets, and company objectives.

 

What You’ll Need:

  • Native or business proficiency in English.
  • 2+ years of professional, corporate experience in conversation design, prompt engineering, or a similar role, with a strong focus on building large-scale, high-performance, conversational applications.
  • Bachelor’s degree in Linguistics, Cognitive Science, Computer Science, Human Computer Interaction, Rhetoric, Communication, Performing Arts, Anthropology, or related field.
  • Deep understanding of prominent, contemporary large language models (LLMs) and their providers, with a clear perspective on the advantages and disadvantages of the contracts, capabilities, and cost of each.
  • Mastery in understanding the mechanics of language, with an awareness of analyzing one’s own bias around language style, dialect, and ideology.
  • Ability to communicate effectively with cross-functional teams, providing clear technical guidance and recommendations through negotiation, presentation, and conference.
  • Noted experience in crafting compelling presentation slides, clear business plans, and research documentation.
  • Previous experience leading or mentoring a team, with a passion for knowledge sharing and team development.
  •  

What Makes You Stand Out:

  • Hands-on experience with Python and related tools (VS Code, Postman).
  • Advanced degree in Linguistics, Cognitive Science, Computer Science, Human Computer Interaction, Rhetoric, Communication, Performing Arts, Anthropology, or related field (Master’s degree, PhD).
  • Demonstrated experience in conveying complex technical and sociolinguistic concepts to non-technical members of staff as related to business goals and objectives.
  • Extensive experience in systems design, especially for enterprise applications.
  • Native or business proficiency in Japanese language.
  • Basic knowledge of AI ethics pertaining to user protections in the United States or Japan.
  • Knowledge of backend technologies and how they integrate with prompt systems.

 

Don’t just take our word for it

Zeals has received the LinkedIn Top Startups award twice in a row. We believe this is a testament to our growth and our ability to attract great talents–who could potentially be your colleague!

 

Our Tech Stack
  • Backend Languages: Go, Python, Elixir
  • Frontend Languages: HTML, CSS, JavaScript (TypeScript, React.js, Recoil, Zod, Tanstack, etc)
  • Mobile Languages: None
  • Infrastructure: Google Cloud Platform, GCP Pub/Sub, Kubernetes, MongoDB, MySQL, Postgres, BigQuery, Elasticsearch, Qdrant
  • Configuration management tool: Terraform
  • CI/CD: Github Actions, ArgoCD, CircleCI
  • Monitoring: Grafana, GCP Cloud Monitoring, GCP Logging, GCP Cloud Trace, Opsgenie
  • Data: BigQuery, Parquet, Spark, Scala, Python, dbt
  • Knowledge Tools: Confluence
  • Other: GitHub / Slack / Jira
  • Process: Scrum

 

Ready to roll up our sleeves

We obsess over bringing hospitality to everyone–be it our customers or you! You’re an individual with unique needs. So, while we can’t attract you with ping-pong tables or all-you-can-drink espresso bars, we promise you a once-in-a-lifetime experience and co-workers that you can brag about to your friends, family, or anyone you meet the next time you go out for a party! . As an employer we are ready to roll-up our sleeves and change the status quo if it means to make your experience better!

  • Salary Range : competitive (performance review every 6 months)
  • Performance review: twice a year
  • Holidays: 10 days paid holidays during the first year, weekends off, national holidays, summer and winter holiday
  • Visa support: We sponsor visas for the right candidates. You can expect full visa support from our professional HR team.
  • Flexible working: Highly flexible, remote-first international organization
    • For Japanese residence: Work from anywhere, interim work from overseas, full flex time
  • Housing allowance (within 1.5KM away from office)
  • Club activity allowance
  • Shuffle Lunch allowance (Cross department lunch)
  • Zeals Bar (bi-monthly free flow beer party)

 

 

 

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We kindly ask for your current and expected compensation to ensure alignment as we move forward in the process.

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We kindly ask for your current and expected compensation to ensure alignment as we move forward in the process.

(※This information will not be shared with hiring managers and will not affect screening.)