Jobs at Mainspring Energy

Owns mechanical design of electrical enclosures, busbars, and power electronics packaging from requirements through production release. Responsibilities include thermal management, sealing, vibration and shock robustness, cable and wire routing, connector selection, prototyping, testing, DFM, supplier collaboration, root-cause analysis, and corrective actions. The role also mentors junior engineers and may lead projects or direct reports, with occasional supplier-site travel.

Provides high-level administrative, operational, and strategic support to executive leaders, including complex calendar management, meeting preparation, confidential communications, domestic and international travel coordination, expense reconciliation, and leadership project support. The role collaborates with executive assistants and cross-functional teams while managing sensitive financial, legal, and personnel information with discretion.

Diagnose and resolve complex electromechanical system issues across software, electrical, and mechanical domains. Debug C++ control algorithms, implement and test field fixes, use Python for diagnostics and data analysis, tune control gains, support reliability and manufacturing testing, and improve sustaining engineering processes and fleet performance.

Manages software deployment operations for a fleet of power generators. Coordinates deployment requests, commissioning activities, release roadmaps, capacity planning, procedures, progress reporting, and continuous process improvement. Leads deployment technicians, remote employees, and contractors while collaborating across engineering and business teams to deliver software updates reliably to customers.

Develop physics-based models, control algorithms, and automated tests for linear generators. Design fuel, air, compression ratio, and cooling control strategies; conduct experiments using Python; analyze thermodynamic-mechatronic systems; debug sensors and actuators; support calibration, validation, manufacturing, reliability, and fleet testing; and use performance data to guide system requirements and design decisions.

Architects software test and automation infrastructure for distributed energy systems. Develops hardware test beds, reusable automation frameworks, CI/CD pipelines, test plans, traceability matrices, and risk-based coverage strategies. Leads system validation, integration testing, failure analysis, debugging, and root-cause investigations across real-time embedded software, predictive controls, and multi-fuel dynamics. Collaborates with engineering teams to diagnose anomalies and validate new technologies.

Manage financial planning, budgeting, forecasting, reporting, and profitability analysis for the Services business. Partner with Operations, Field Service, Supply Chain, Accounting, and senior leadership to model labor, spare parts, service contracts, warranty, capital investments, and operating metrics. Translate fleet and field-service performance into financial insights, identify margin improvements, support pricing and contract analysis, and develop dashboards and reporting tools.

Diagnose and resolve field issues in automated power-generation systems, determine mechanical, electrical, and software root causes, debug C++ control algorithms, implement and test fixes, analyze data with Python, tune control gains, calibrate systems, and improve reliability, manufacturing testing, and sustaining engineering processes.

Supports supply chain cost analysis, BOM cost roll-ups, should-cost modeling, cost-down tracking, capacity planning, and reporting. Collaborates with procurement, engineering, commodity management, finance, and suppliers to validate cost and capacity data, identify savings opportunities, maintain dashboards, and track project progress. The role is designed for someone with 0–3 years of experience to develop cost engineering expertise in a hardware environment.

Lead development of piston and ring sealing systems from requirements and concept through detailed design, testing, failure analysis, and production release. Design precision moving parts, investigate coupled thermal, structural, materials, and fluid interactions, and run benchtop and in-generator test campaigns. Collaborate across engineering disciplines while applying mechanical engineering, thermodynamics, heat transfer, structural mechanics, tribology, and systems-level problem solving.

Leads hands-on investigations of electrical hardware failures, performs root cause analysis, and translates findings into corrective and preventive actions. The role improves failure-analysis throughput, documents diagnostic workflows and failure modes, collaborates with design, manufacturing, quality, reliability, and maintenance teams, and mentors junior engineers and technicians. Focus areas include power electronics, EMC/EMI issues, environmental degradation, thermal cycling, moisture, and system-level electrical interactions.

Leads a team of technical writers and establishes company-wide documentation standards, processes, tools, and revision control. Partners with Engineering, Manufacturing, and Field Service to translate complex mechanical and electrical systems into clear manuals, assembly instructions, and digital content. Oversees CAD-derived illustrations, schematics, and process flows, while mentoring writers and contributing hands-on to high-priority documentation projects.

Architects and scales automated test frameworks and CI/CD integrations for complex hardware and software systems. Creates validation workflows for cloud, networking, IoT, controls, simulations, and algorithms; performs root cause analysis and risk mitigation; and drives risk-based test coverage. The role partners closely with developers, conducts exploratory testing, designs technical test cases, and develops scalable solutions primarily in Python and C++ while using AI coding assistants responsibly.

Manage an embedded software engineering team developing Linux and real-time bare-metal applications for fuel-flexible linear generators. Lead team development, performance management, hiring, and career growth; oversee software lifecycle milestones and delivery; collaborate with product, executive, and QA stakeholders; and provide architectural and technical guidance during design reviews. The role requires extensive embedded software experience, commercial product delivery, project management, and Agile methodology expertise.

Designs and executes subsystem and system-level tests for Linear Generator electrical and software changes. Troubleshoots, retrofits, and operates test units; collaborates with technicians and engineering teams; analyzes data and reports results; manages testing priorities; and improves test processes and infrastructure for next-generation products.

Lead end-to-end technical program management for software in hardware-integrated products. Own integrated master schedules, drive cross-functional execution, enforce scalable engineering workflows, manage risks and budgets, and provide executive reporting on program health to ensure on-time delivery and validation readiness.

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.

Leads an embedded software engineering team developing Linux and real-time bare-metal systems for sophisticated linear generators. Responsibilities include setting technical roadmaps, managing engineers, overseeing software development, establishing architecture and quality standards, providing technical guidance, collaborating cross-functionally, and hiring and developing talent.

Leads the reliability engineering function for linear generators, including team growth, reliability strategy, lifecycle testing, metrics, FMEA, HALT, root-cause analysis, CAPA, compliance considerations, and executive risk reporting. Partners with Product Engineering, R&D, and Manufacturing to influence design decisions, improve verification processes, and expand test infrastructure, automation, and data analysis capabilities in a hardware manufacturing environment.

The Senior Sales Engineer develops system architecture and designs while providing technical expertise throughout the sales process, ensuring execution readiness and architectural integrity.