Seeking a seasoned Backend Engineer who can architect scalable, high-performance systems for Japan's energy infrastructure while managing complex domain challenges and contributing to technical leadership across a growing organization. ## Company Overview Since our founding in 2019, we have provided a marketplace for energy providers and have grown to become Japan's largest online trading market, including major power companies. Our GTV (Gross Transaction Value) is approaching 3 trillion yen, and we aim to realize a 100 trillion yen market in annual transaction volume in the future. In 2024, we raised 6 billion yen in Series B funding from domestic and international institutional investors including DCM Ventures and Solos Capital Management, financial institutions, and 9 energy trading businesses including power, gas, and trading companies, and are actively investing in our development team. ## Products 1/ eSquare: Trading Platform Japan's first full-scale trading platform that allows online buying and selling of energy. 2/ eCompass: Market Data Platform A data platform that provides all energy-related data and market information necessary for power trading, such as power prices and fuel price market data. 3/ eScan: Market Risk Management Tool An ETRM (Energy Trading Risk Management System) specialized for Japanese electricity that visualizes business risk amounts from transaction status and market data. 4/ JCEX: Environmental Commodities Exchange A marketplace where domestic environmental commodities and overseas voluntary credits can be bought and sold online, supporting climate change mitigation and the realization of carbon neutrality in Japan. ## Backend Challenges - Domain-driven design and architecture design in anticipation of system scaling - High-level security, availability, and performance for building systems close to national infrastructure - Understanding complex energy domains while communicating with domain experts - Developing a management and people development system for a tech organization of over 50 people ## Job Responsibilities - Design and deliver resilient electronic trading services with strong reliability, low-latency performance, and a bias for automation on cloud-native infrastructure - Develop and operate core platform components including the primary exchange services, clearing workflows, external and internal APIs, connectivity solutions, and developer tooling - Build data pipelines and services to ingest, catalog, analyze, transform, and publish market and trading data with auditability and governance - Architect for reliability and performance by default, leveraging automation for provisioning, deployment, and operations - Conduct thoughtful code reviews, share best practices, and mentor less experienced engineers to elevate engineering quality

- 4+ years professional engineering experience - 1+ years experience in electronic trading with market facing role - Familiarity with algorithmic trading principles and execution strategies - Strong programming skills in languages such as Go, TypeScript, Java

- GCP/GKE usage experience - Experience in vibe coding using multiple AI agents.

- Resonates with enechain's mission "Building Energy Markets, Coloring Our Society" and can collaborate with a purpose-driven mindset - Can focus on delivering significant results as a team - Can set priorities with the aim of maximizing business impact - Can take ownership and proactively complete projects from start to finish - Can accept different opinions, is not afraid to express different views, and can discuss logically - Willingness to acquire necessary domain knowledge by diving deep into the Japan energy market domain