Jobs at Mainspring Energy

Lead and scale accounting operations for a fast-growing cleantech manufacturer: own month-end close, GL, reconciliations, audit coordination, internal controls, ERP optimization, automation, and build a high-performing accounting team.

As Principal AI Architect, you will lead AI integration in engineering workflows, optimizing processes, ensuring governance, and establishing AI accountability in development cycles.

Owner of top-of-funnel sourcing for engineering roles across hardware and software domains. Run outbound campaigns, talent mapping, and market research; use AI-enabled sourcing tools and ATS to identify, engage, and qualify candidates; partner with recruiters and hiring managers to refine profiles and outreach; track sourcing metrics and maintain clean ATS data.

The role involves building and running automated test systems, designing workflows for system validation, and conducting failure analysis to maintain test systems for quality assurance.

Lead the architecture of cloud-to-field software ecosystem for distributed energy assets, ensuring high availability and integrating AI methodologies for optimization.

The Director of Customer Success oversees customer relationships post-deployment, ensuring performance and satisfaction, while coordinating cross-functional teams to address customer issues and establish processes for account management.

Lead critical product development initiatives for the Linear Generator, managing cross-functional teams through program execution and ensuring manufacturing readiness.

Lead design and development of frame and air spring systems for Linear Generators, ensuring structural integrity and performance while collaborating with cross-functional teams to meet engineering requirements.

Lead cross-functional coordination between Sales, Legal, Finance, Project Delivery, Product, and Leadership to drive commercial contract negotiation and execution. Manage multiple deals, track contract status, remove blockers, standardize templates and fallback positions, and implement process improvements and automation to improve contracting efficiency and visibility.

The Senior Manager of Channel Sales will drive revenue growth in Mexico and the Caribbean by recruiting partners, managing deals, and executing market strategies for Mainspring's energy solutions.

Lead the design and deployment of control systems for automation in manufacturing, ensuring quality and compliance while mentoring junior staff.

Own supplier quality from NPI through volume production for complex components and special processes. Develop control plans, approve PPAPs, run SPC and Cp/Cpk analysis, lead supplier audits and SCAR closure using 8D, manage NCR dispositions, and serve as SQE subject-matter expert for special processes.

The Reliability Test Engineer will lead experiments for Linear Generators, collaborating with engineering disciplines, troubleshooting, analyzing data, and improving testing processes.

The Revenue Operations Lead will manage the full revenue cycle for Mainspring, focusing on revenue recognition, billing, and process improvements while working closely with finance leadership and various departments.

Provide business-minded legal advice and lead negotiation of complex commercial agreements (equipment/project sales, O&M, EPC, financed transactions). Build contract templates, playbooks, and scalable processes; partner with Sales, Finance, Project Delivery, and Operations; and deliver training to elevate organizational legal IQ.

The Test Engineer will perform hands-on testing on Linear Generator units, develop testing processes, analyze data, and collaborate with engineering teams.

Lead the design of electrical enclosures and systems, manage engineers, and ensure project milestones through cross-functional collaboration.

Lead ~25 engineers and own 40-50% of a mechanical portfolio for a modular 250 kW-class linear generator. Drive risk mitigation, engineering review discipline (FMEA, DVP&R, tolerance analysis), supplier/manufacturing partnership, and development of future leaders to scale reliable power-generation hardware.

The Associate Technical Writer will create and maintain manufacturing and service documentation, authoring technical content and generating visuals using CAD. Collaboration with various teams and onsite work is required.

Lead the structural design and alignment for critical components of the Linear Generator, including testing and model validations while collaborating across teams.