Mainspring Energy

Full-stack Engineer

• Lead the architectural design of site-level control systems, ensuring high-speed, reliable coordination between multiple LGens and balance-of-plant equipment
• Design and implement robust communication interfaces using OPC-UA, Modbus, and other industrial protocols to ensure interoperability
• Own the vision for our SCADA systems and HMI design, focusing on intuitive operator interfaces and deep diagnostic visibility
• Develop strategies for integrating Mainspring technology into Distributed Energy Resource Management Systems (DERMS) and complex microgrid environments
• Act as the subject matter expert for the engineering team on commercial power standards, site safety logic, and grid compliance
• Work closely with Product and Hardware teams to translate utility requirements and interconnection standards into software specifications

Senior Staff Engineer – Power Systems, Site Control

Compliance

• Provide thoughtful and operationally practical support to internal stakeholders on environmental compliance and permitting requirements, with a focus on air quality regulations and reporting obligations
• Partner with Operations and O&M teams to ensure environmental compliance is embedded into day-to-day execution and long-term planning
• Identify emerging regulatory risks and translate requirements into clear internal actions, documentation, and timelines
• Architect and refine scalable compliance processes, including permit tracking, reporting workflows, and documentation standards that integrate with Mainspring’s Environmental Management System (EMS)
• Drive continuous improvement by identifying opportunities for automation, system enhancements, and tool development (e.g., scripts, dashboards, database improvements) to improve accuracy, speed, and audit readiness
• Develop and maintain Permit Action Plans for operational activities, ensuring timely permit acquisition, renewals, and ongoing compliance
• Own and maintain the air emissions tracking dashboard, ensuring data integrity, accuracy, and real-time visibility for internal stakeholders
• Maintain cross-platform compliance documentation and data integrity across key enterprise systems, ensuring compliance activities, timelines, and records remain complete and audit-ready
• Maintain records of environmental monitoring data, compliance documentation, and reporting outputs, ensuring timely and accurate EMS inputs
• Support the coordination and execution of Source Testing activities, including scheduling, contractor management, protocol review support, and site logistics
• Track and analyze source testing results, flagging potential compliance risks and ensuring accurate internal and external reporting
• Coordinate Portable Analyzer Checks and support the development of digital tools to simplify and standardize field documentation
• Coordinate and track maintenance and part replacement schedules for environmental control equipment and monitoring instruments
• Help elevate environmental compliance capability across the organization by developing clear guidance, documentation, and training materials for operational teams
• Contribute to the development of internal playbooks and best practices to support compliance execution at scale

Environmental Analyst – Permitting, Compliance

General Counsel

• Provide thoughtful, risk-balanced, and business-minded advice to internal stakeholders on a wide range of complex contracts, such as equipment and project sale agreements, operation and maintenance contracts, development services agreements, EPC Agreements, financed offerings, and various supporting agreements
• Work closely with stakeholders across the company to architect and refine contract forms, templates, and playbooks, as well as scalable processes to support these tools
• Partner deeply with Sales, Finance, Project Delivery, Operations and other teams to drive execution of high-stakes commercial agreements
• Lead end-to-end contract negotiations for various commercial agreements with customers in the commercial and industrial, data center, governmental, and utility sectors, balancing legal protection with business velocity
• Develop and deliver training and other materials to elevate the legal IQ of the organization on contract terms and other legal issues

Counsel

Operations

• Operate and test our Linear Generator units after new site installations to allow seamless integration into Mainspring’s growing LGen fleet
• Travel to customer sites and project locations to support new installations, site acceptance tests, and customer demonstrations
• Enhance current commissioning procedures to improve testing efficiency and shorten timelines
• Troubleshoot and root cause operation issues with our linear generators in collaboration with other engineering teams such as Mechanical, Electrical, and Software & Controls
• Work directly with our commissioning technicians to facilitate repairs, retrofits, and provide operational training on our generators
• Analyze data, generate reports and communicate results from commissioning to our customers, internal project managers, and with engineering teams to facilitate learnings
• Build and refine automation scripts, commissioning toolkits, and data-driven processes that streamline onboarding, testing, and fault recovery

Senior Commissioning Operations Engineer

Commissioning Operations Engineer

Application Engineer

• Design, configure, and maintain automation project files for complex energy projects. You will manage control implementation for customer specific applications such as grid-parallel operation, islanding transitions, blackstart coordination, and peak shaving
• Create and modify Sequence of Operations (SOO) procedures to meet project specifications and requirements
• Author Site Acceptance Testing (SAT) procedures to demonstrate the proper implementation and function of the system after deployment
• Partner with the field commissioning team to support startup and testing activities. You will be the escalation point for complex control, networking, and integration issues through Commercial Operation
• Serve as a technical advisor for internal teams building out code base improvements and expanded generator controls functionality
• Ensure comprehensive documentation of control designs, IP addressing schemes, and logic modifications to facilitate a smooth handover to our Fleet Operations team for long-term maintenance
• Anticipate and communicate project risks related to generator control deployment and contributes meaningful mitigation strategies

Senior Staff Engineer – Power Systems, Site Control

Environmental Analyst – Permitting, Compliance

Counsel

Senior Commissioning Operations Engineer

Commissioning Operations Engineer

Senior Applications Engineer – Control and Automation