Interested in joining a growing company where you will work with talented colleagues, enhance a supportive and energetic culture, and be part of the climate solution? At Energy Solutions, we focus on the big impacts. And we believe that market-based programs can be a powerful force to deliver large-scale energy, carbon, and water-use savings. Since 1995, we've harnessed that power to offer proven, performance-based solutions for our utility, government, and institutional customers.Energy Solutions is currently seeking a Senior HRIS Business Analyst to serve as a Workday HCM subject matter expert and a key partner to People Operations. This role partners with HR, Payroll, Benefits, Compliance, and IT to configure, maintain, support and optimize HR systems, ensuring accurate data, compliant processes, and strong employee experience.The ideal candidate operates independently with general guidance, manages moderately complex issues, and influences outcomes through expertise, analytics, and consultative communication.This is a hybrid role requiring at least one onsite day per week (currently Wednesdays). Preferred locations include Oakland, CA; Orange, CA; and Portland, OR. Candidates near Chicago, IL; New York, NY; or Boston, MA will also be considered but must work Pacific Time hours. Responsibilities include but are not limited to:HRIS Administration & Service Delivery Configure, maintain, and optimize Workday modules including Core HCM, Benefits, Compensation, Payroll, Time Tracking, and Absence Management. Manage People Operations service delivery by handling moderately complex HRIS cases, employee issues, and escalations, ensuring timely resolution and a positive employee experience. Troubleshoot and resolve Workday operational issues including PTO accruals not occurring, absence plan discrepancies, and time off labeling inconsistencies between payroll results and pay slips. Partner cross-functionally to resolve system, data, and process issues impacting HR service workflows and downstream integrations. Review and validate HRIS transactions to ensure standards for accuracy, consistency, internal controls, and compliance requirements are met. Support and maintain onboarding-related system processes and configuration updates, including I-9/document relaunch activities.Compliance & Risk Management Support and maintain compliance-related activities by ensuring HR data, system configurations, and business processes align with internal controls and regulatory requirements. Support audits, investigations, and corrective actions by providing accurate system data, documentation, and reporting. Identify, assess, and recommend process or system improvements to mitigate compliance or data risks. Maintain strong documentation to support audit readiness and operational controls.HR Data, Reporting & Analytics Partner with PC Analytics to provide access, data, and requirements needed to develop and maintain Workday reports, dashboards, and analytics. Enable PC Analytics to develop and maintain custom reports and operational reporting, including supervisor reports and dashboards (e.g., DEI reporting). Enable PC Team to prepare statistical summaries and ad hoc analyses related to workforce data, compensation, payroll, benefits, performance, and service delivery metrics. Improve and standardize data integrity, reporting consistency, and governance through standardized definitions, calculated fields, validation controls, and testing.Integrations, Data Conversion & Testing Support, maintain, and troubleshoot inbound and outbound integrations and data loads using Enterprise Interface Builder (EIB), Cloud Connectors, and Workday Studio (as applicable to role scope). Support Workday business process integrations such as Docusign and associated workflow troubleshooting. * Collaborate with technical teams to resolve interface issues, including updates to ex