Staff Software Engineer – Energy Services - Qcells

POSITION DESCRIPTION:

We are seeking a Staff Software Engineer – Energy Services Platform to join our Energy Services Applications Team. This role involves leading and developing backend applications that orchestrate and execute complex energy system models. These models leverage forecasting and optimization algorithms to predict the performance of Qcells' product suite, including PV modules, inverters, and Battery Energy Management Software. The ideal candidate will have experience in energy system modeling and will work closely with data scientists, data engineers, and product managers to ensure the scalability and extensibility of the modeling platform, supporting Qcells' ambitious growth plans in the Residential and Commercial & Industrial markets.

RESPONSIBILITIES

• Provide technical vision and architecture for energy modeling applications that incorporate forecasting, optimization, and first-principles energy models.
• Drive technical and product roadmaps by managing a team of 2-4 software engineers and directly contributing to the codebase.
• Design, develop, and own software that models the performance of distributed energy systems and their financial value proposition, supporting various stages of the Qcells customer journey (from pre-sales to asset operation).
• Collaborate with data scientists, software engineers, and DevOps to deploy applications into production.
• Work closely with product managers, key stakeholders, and data scientists to understand and implement new requirements for the energy service platform, such as automated workflows, enhanced usability, and improved scalability.
• Develop and design microservice interfaces and APIs that facilitate easy execution and use of energy modeling applications in production and development environments.
• Troubleshoot issues related to algorithm code.
• Mentor and develop a team of Energy Service Application software engineers.

REQUIRED QUALIFICATIONS
 

• 7+ years of experience in developing software applications within the energy industry, preferably with distributed energy resources.
• 2+ years in a management or leadership role, either as an engineering manager or a technical lead responsible for software feature delivery.
• Strong skills in software design, mathematics, and analytics.
• Expertise in Django/Flask/FastAPI, Python (3.6+), and libraries for numerical and time-series modeling (NumPy, Pandas, SciPy, DateTime, etc.).
• Proven track record in delivering software products/features throughout the software development lifecycle.
• Experience with CI/CD, unit testing, managing complex projects in Git, and handling virtual environments.
• Excellent interpersonal and communication skills, with the ability to work effectively with cross-functional teams and stakeholders.
• Experience with cloud and IoT technologies, including Docker, Kubernetes, microservices, message-passing architectures, and REST APIs.
• Proficiency in querying databases for structured data.
• Collaborative attitude with a willingness to learn and adapt in the rapidly evolving energy industry.

PREFERRED QUALIFICATIONS

• Expert knowledge of distributed energy resources (PV, storage, EVs) and the revenue-generating methods for these resources in residential and commercial/industrial markets.
• Familiarity with machine learning and optimization algorithms and concepts.
• Experience with Airflow (including plugins).
• Knowledge of database and data management technologies, such as PostgreSQL, Django ORM, Cassandra, Timescale DB, Redis, and S3. 

Hanwha Q CELLS America Inc. (“HQCA”) is headquartered in Irvine, CA, and handles sales for the North American region. It is a subsidiary of Hanwha Q CELLS Co., Ltd., one of the world´s largest and most recognized photovoltaic manufacturers for its high-performance, high-quality solar cells and modules. It is headquartered in Seoul, South Korea (Global Executive HQ) and Thalheim, Germany (Technology & Innovation HQ). Through its growing global business network spanning Europe, North America, Asia, South America, Africa, and the Middle East, the company provides excellent services and long-term partnerships to its customers in the utility, commercial, government, and residential markets. Hanwha Q CELLS is a flagship company of Hanwha Group, a FORTUNE Global 500 firm, and a Top 8 business enterprise in South Korea. HQCA recently acquired Geli, a leading developer of Energy Management System software for energy storage, solar, and other renewable resources.