About Us

At Sales Marker, our mission is to create a world where all people and companies can challenge themselves beyond existing boundaries. We’re one of the fastest growing start-ups in Japan and we’re growing at a speed that is twice as fast as Unicorn startups. By using our product, sales teams can improve their work efficiency by 3 times. We have achieved over 900% YoY business growth rate in 2.5 years since our flagship product 「Sales Marker」 was released and we’re currently actively working on a wide range of new product portfolios.

The Team

Our co-founders are from top companies in Japan and the world such as NRI, Keyence, LINE, Microsoft, and PwC. They were selected as 「FORBES 30 UNDER 30 ASIA LIST」 in 2023 . In our Engineering & Product team, we have members from more than 16 countries and they come from top tech companies in the world such as Google, Microsoft, Indeed, and famous tech companies in Japan such as Mercari, LINE, Yahoo, Smartnews, etc. 

Responsibilities

As a strategic role reporting directly to the CTO, you will be at the forefront of driving our AI Agent development. This position goes beyond a typical engineering role, involving significant engagement in strategic decision-making and the direction of our products. You will take a leadership role in building the next generation of AI Agents, driving innovation through collaboration with internal and external stakeholders. You will also lead large teams, leveraging the latest AI technologies to develop and operate next-generation enterprise solutions.

• Provide technical leadership for AI Agent development projects.
• Design and select system architectures.
• Provide technical support and conduct code reviews for team members (senior and junior).
• Coordinate technically with external stakeholders (Product, UX, Research, etc.).
• Evaluate cutting-edge LLM and agent technologies and formulate adoption strategies.

Requirements

• Have meaningful experience with building (and rebuilding) production systems to deliver new product capabilities and to handle increasing scale
• Care deeply about the end user experience and take pride in building products to delight customers
• Experience leading development teams or managing projects with multiple members.
• Large Language Model Integration: Experience working with LLM APIs (e.g., OpenAI, Anthropic) and integrating them into agent workflows for natural-language understanding and generation
• Agent Solution Design: Ability to design and build deployable AI agent solutions and best-practice templates for internal and external stakeholders
• Cloud Platform Expertise: Hands-on experience with AWS, GCP, or Azure to deploy, scale, and secure AI services in production
• Database Design & Optimization: Expertise in designing scalable database schemas, indexing strategies, and query optimization for high-performance applications
• Understanding and practical experience with Model Context Protocol (MCP).
• Business-level English proficiency.
   

Nice to Have

• Agent Orchestration Frameworks: Familiarity with platforms like LangChain, Rasa, or Restack to build, evaluate, and iterate on AI agent workflows
• Benchmarking & Evaluation: Experience with tools and methodologies to measure agent accuracy, reliability, and on-brand performance
• Experience promoting projects in startups or R&D departments.
• Experience with technical presentations and public speaking, both internally and externally.

Our Tech Stack

[Front-end]

• TypeScript, React;
• Libraries: Storybook, jest;
• Hosting: Amplify

[Server Side/Back-End]

• Infrastructure: AWS, ElasticBeanstalk
• DB: Aurora, ElasticSearch;
• Languages: Go, Typescript
• Analysis environment: Athena;
• Framework: Express;
• Monitoring: DataDog;
• Others: AWS Lambda, AWS Batch, AWS API Gateway, AWS Glue

Why Us?

• One of the fastest growing Saas startup in Japan with strong financial growth
• Innovative new product development and opportunity to build things from scratch.
• Plenty of leadership and career development opportunities.
• Full remote-friendly & full flexible work schedules.
• Global team and English speaking environment.
• Great benefits & perks packages such as Resort Worx, Purchasing Books, Free Weekly Lunch, Offsites, etc.

Working Style

● Hybrid Work
We follow a hybrid work style, combining both office and remote work. Recommended in-office days vary by role. Even when working remotely, we maintain smooth collaboration and communication through tools like Zoom, Google Meet, and Gather.

● Flex Work
You can customize your working hours to suit your day. For business and client-facing teams, schedules are often arranged around client meetings.

● Global Environment
With team members from over 20 countries, we bring together diverse perspectives and ideas, driving projects forward across languages and cultures in an environment where English and Japanese blend naturally into daily communication.

Read More

■Career Page: https://sales-marker.jp/corporate/en/
■Culture Book: https://speakerdeck.com/salesmarker/sales-marker-culturebook-en
■YouTube: https://www.youtube.com/watch?v=Ob8Ds06zwo0