【Machine Learning Engineer】Japan's Largest Energy Market Place / Hybrid Work / Japanese N2 level

★Machine Learning Engineer | Famous Energy Tech Company

• Japanese: Business Level REQUIRED (N2 Level)

★Start-up Company

★Flextime System & Fully Remote Work

★Annual salary: 10 million yen - 15 million yen

★In-house Development

-------------【About the company】-------------

The company is a startup that operates the largest energy marketplace in Japan. Covering everything from electricity and fuel to environmental value, its goal is to achieve "Social Good" through a fair market that enables anyone to exchange all types of energy value in an open and accessible way.

As global energy conditions become increasingly uncertain, resource-scarce Japan is directly affected. For example, electricity prices—critical to the foundation of economic activity—have experienced extreme volatility. The energy marketplace developed by enechain empowers businesses to manage this uncertainty, contributing to the stabilization of the Japanese economy and revitalizing Japanese enterprises.

In order to mitigate the escalating risks of climate change, a global commitment to carbon neutrality is essential. The company’s environmental marketplace promotes decarbonization efforts across entire supply chains through the trading of environmental value. By accelerating the realization of carbon neutrality, it aims to create a brighter, more prosperous future for the next generation.

Through the power of markets, the company strives to enrich Japan’s economy and create a more sustainable society. By establishing a strong foundation in the form of an energy marketplace—an essential part of daily life—it brings lasting value and vitality to society as a whole.

-------------【 Job Description】-------------

■Products

1. Trading Platform: This is Japan's first full-scale online trading platform for the free buying and selling of energy. It is a business authorized by the Ministry of Economy, Trade and Industry.

2. Market Data Platform: This platform provides all the energy-related market information and data necessary for electricity trading, including electricity and fuel prices.

3. Market Risk Management Tool: This tool is an Energy Trading Risk Management (ETRM) system specifically for the Japanese power market. It visualizes business risks based on trading status and market data.

4. Environmental Value Marketplace: This is an online marketplace for trading domestic environmental credits and overseas voluntary credits. It aims to support climate change mitigation and help Japan achieve carbon neutrality.

■Responsibilities

- Collaborating with the business side to lead everything from requirements gathering to the design and implementation of machine learning and statistical models.

- Designing and driving the operation of systems that require high availability.

e.g., electricity demand forecasting models, fraudulent transaction detection systems

- Maintaining, operating, and improving existing systems.

- Establishing design and development guidelines.

■ Technology Stack

- Frontend: React, TypeScript

- Backend: Go/gRPC, NestJS/GraphQL

- Database: PostgreSQL

- Data Engineering/Analytics: Python

- Mobile: Flutter

- Infrastructure: GCP, GKE, Argo Workflows, BigQuery, Pub/Sub, Dataflow, etc

- IaC: Terraform

- Analytics Tools: Looker Studio, Tableau, Google Analytics

- CI/CD: Cloud Build, GitHub Actions, Argo CD

- Logging/Monitoring: Datadog

■ Tool Used

- Slack

- Notion

- Gather

- Figma

- GitHub Copilot

-------------【 Requirements】-------------

Required

- 3+ years of experience developing and operating services incorporating machine learning and mathematical statistics models

- Experience driving critical system operations with ownership (including incident response)

- Development experience using Public Cloud (AWS, Azure, GCP)

- Experience designing and implementing models with explainability in mind

- Foundational knowledge of mathematical optimization and time series analysis

Preferred

- Experience in developing and operating fraud detection models

- Practical experience with MLOps

- Experience promoting AI adoption (including using coding agents and internal deployment)

- Experience developing and operating recommendation engines

Ideal Applicants

- Empathize with enechain's mission, “Building Energy Markets, Coloring Our Society,” and collaborate purposefully

- Prioritize tasks with the goal of maximizing business impact

- Focus on achieving significant results as a team

- Take ownership and proactively see projects through to completion

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【Working Time 】

Flextime System

(*Core-time 11:00～16:00)

【 Welfare 】

・Full Social Insurance

・Commuting Allowance

・Medical checkups

・Various in-house events, etc.

■Measures to prevent passive smoking

・In principle, no smoking indoors (smoking rooms are available indoors)

・Yotsuya Office, Minami Shinjuku Office, Osaki Office

・Salary revision: Twice a year

・Allowance: Transportation expenses (in accordance with company regulations), LINE Pay Card Benefit Plan(*2)

(*1) In addition to the annual salary amount, incentives may be paid twice a year depending on the company's and the individual's performance and evaluation.

(This is not always paid. Only employees who are enrolled at the company on the date of payment are eligible for the payment).

(*2) This allowance is paid separately from salary for the purpose of "health maintenance and improvement," "self-development," and "next-generation development" of employees.

【 Holiday 】

• 2 days a week (Saturday and Sunday)
• Annual Paid Leave
• National Holidays
• New Year holiday, etc

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