【Backend Engineer - Golang】Japan's Largest Energy Market Place / Hybrid Work / Japanese N2 level

★Back-End Engineer | Famous Energy Tech CompanyJapanese: Business Level REQUIRED ★Start-up Company★Flextime System & Fully Remote Work★Annual salary: 5.5 million yen - 10 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】------------- ■ Company OverviewSince its founding in 2019, the company has provided an online marketplace for energy businesses and has grown into Japan's largest trading platform, with participating corporate clients—including major electric power companies—accounting for 95% of the market share.

Its Gross Transaction Value (GTV) is approaching ¥2 trillion, and it now aims to achieve a ¥100 trillion annual transaction volume in the near future. In 2024, the company raised ¥6 billion in Series B funding, with investment from both domestic and international institutional investors, including DCM Ventures, as well as nine energy trading companies spanning power, gas, and general trading sectors.

It is now actively investing in expanding its development team. ■Products①eSquare: Trading PlatformJapan’s first full-scale online trading platform for energy, allowing users to freely buy and sell energy.(This is a licensed business approved by the Ministry of Economy, Trade and Industry.) ②eCompass: Market Data PlatformA data platform that provides comprehensive energy-related information necessary for electricity trading, including market data such as electricity and fuel prices.

③eScan: Market Risk Management ToolAn Energy Trading Risk Management (ETRM) system specialized for the Japanese power market, which visualizes business risks based on trading activity and market data.It also offers simulation features to compare risks under various scenarios. ■ Challenges in Backend Development・Designing domains and architectures with a forward-looking approach to accommodate future system scalability.・Building systems that require a high level of security, availability, and performance, as they are expected to operate on a national infrastructure level.・Understanding the complexities of the energy domain through close communication with domain experts.・Establishing effective management and talent development systems for a large tech organization with over 50 members.・Enhancing technical branding and recruitment outreach. ■ Responsibilities- Design and implementation for microservice development- API development using Go and gRPC- Domain modeling and code design based on Domain-Driven Design (DDD)- Database design and load estimation- BFF (Backend for Frontend) development using GraphQL / Connect- Infrastructure