Expert Data Engineer

Location: Oakland, CA (Hybrid). Contract: 12 months. Work Authorization: Applicants must be authorized to work for ANY employer in the U.S.; no sponsorship available.

The client is one of the largest combined natural gas and electric utility companies in the United States, delivering energy to approximately 16 million people across a 70,000-square-mile service area spanning northern and central California. With roughly 25,000 employees, the organization operates some of the most complex energy infrastructure in the country — including transmission lines, pipelines, substations, and generation facilities — and is actively managing the intersection of traditional infrastructure and emerging clean energy solutions.

GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. We highly value diverse and inclusive workplaces and support Fortune 500 organizations across banking, financial services, technology, life sciences, biotech, utilities, and retail sectors throughout the U.S. and Canada.

About the role

This client is seeking a highly motivated contractor with 3–5 years of experience in Python application development, Streamlit, Snowflake, and data engineering. The contractor will support the design, development, and deployment of data-driven applications that streamline business processes, improve asset management capabilities, and enable operational insights for Substation Systems & Tools and related business functions. The ideal candidate will have experience building data applications using Python and Streamlit, working with Snowflake data platforms, and developing data pipelines that integrate information from multiple enterprise systems. Experience supporting asset management, utility operations, SAP, SharePoint, or engineering workflows is highly desirable.

Responsibilities

• Design, develop, and maintain Streamlit applications hosted on Snowflake.
• Develop Python-based solutions for data ingestion, transformation, validation, and reporting.
• Create scalable data pipelines and workflows to support business processes and analytics.
• Build interactive dashboards, forms, workflows, and self-service applications for business users.
• Develop and maintain integrations between Snowflake and enterprise systems including SharePoint, SAP, APIs, and other internal platforms.
• Collaborate with business stakeholders to gather requirements and translate them into technical solutions.
• Support data modeling, data quality, and governance activities.
• Troubleshoot production issues and implement performance improvements.
• Participate in Agile development activities, including sprint planning, backlog grooming, testing, and deployment.
• Create technical documentation, deployment guides, and support materials.

Requirements

• 3–5 years of experience in Python development.
• 2 years of experience building applications using Streamlit