Translates changing electricity-market rules and business processes into system requirements, defines data and calculation logic, reviews technical specifications, and advances internal DX with AI coding tools.
Bluefield Energy is a Japanese energy-technology company serving electricity retailers and owners and developers of solar and battery assets. It aggregates distributed solar and storage resources, supports renewable plants and battery projects from development through outsourced operation, and provides BF Cloud for customer management and corporate-PPA billing.
The company earns revenue from software contracts and fees for aggregation, development support and operations. In August 2026, it partnered with PORT and Fluence Energy Japan to combine AI-based optimization with market trading and operation of grid-connected batteries, securing an operating contract for PORT’s first high-voltage storage project.
- Salary range
- ¥4.5M – ¥20M
- Median
- ¥7M – ¥15M
- Remote or hybrid
- 92%
- Most requested
- JavaScript 5
- TypeScript 5
- Python 4
- SQL 4
- Azure 3
- C# 3
- Japanese posting, level unstated 13
- Common areas
- Backend engineering 4
- Business development 3
- Frontend engineering 3
- Consulting & strategy 2
Measured from the 13 listings Ranked has live for Bluefield Energy. Japanese level, visa signal and skills are AI-graded from each posting and can be wrong — confirm against the employer's original posting before applying.
13
open positions at Bluefield Energy
2
Translates changing electricity-market rules into system specifications, defines data and calculation logic, reviews technical diagrams, and builds mockups with AI coding tools.
Leads DX consulting for major corporate clients, from needs interviews and requirements definition through project design, system delivery, and BF Cloud improvement.
Lead renewable-energy business development with utilities, power producers and financial institutions, covering strategy, proposals, deal closing, operations and team management.
Lead architecture, implementation, reviews, and technical standards for a multi-customer energy SaaS product using C#, React, TypeScript, and Azure, while guiding technical decisions and team management.
Develop and operate Bluefield Cloud and related services, handling feature delivery, performance and scalability improvements, Azure operations, automation, and technical debt reduction.
Own reliability for solar-power forecasting and JEPX bidding systems, building AI Agent harnesses, quality gates, and incident-response processes. Collaborate with a small research team on GCP infrastructure and operational decisions.
Develop aggregation schemes for grid-scale storage supporting renewable energy. Plan sales strategy, build partnerships, prepare proposals, negotiate, close deals, and drive operations.
Work with professionals across engineering, business planning, design, and corporate functions on energy and technology projects. At least three weekdays and four hours per day are required.
Develops solar and electricity-market forecasts, implements battery bidding optimization in Python, and evaluates accuracy and revenue through backtesting. Part-time remote work is available.
Implement and validate Python algorithms for solar and electricity-market forecasting, battery bidding optimization, and backtesting, using Claude Code or Codex. Remote work is available.
Lead QA for an energy technology platform by planning and executing feature, integration, non-functional, and automated E2E tests, and improving quality processes with a scrum team.
Develop generation, demand, and electricity-price forecasting models, optimize trading plans for storage sites, and deploy and improve algorithms in production with AI Agents.