Jobs at Mainspring Energy

Develop embedded software and firmware for Linux, bare-metal, and RTOS platforms. Build C++ production code, Python tooling, device communication interfaces, diagnostic systems, fault logging, telemetry, and technician HMI integrations. Debug hardware-software issues using logic analyzers, multimeters, and physical debuggers while supporting hardware bring-up, configuration, data logging, manufacturing tests, and field repair.

Monitor system alerts during assigned shifts, follow troubleshooting flowcharts, restart hardware, escalate unresolved issues, and maintain detailed action logs. The role provides flexible afternoon, weekend, and absence coverage while supporting operations for electromechanical power systems. Success requires technical aptitude, attention to detail, independent judgment, strong communication, and the ability to prioritize issues in a fast-paced 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 post-deployment customer success for complex power-generation systems, serving as the primary customer contact and coordinating Engineering, Product, Operations, Field Service, and Commercial teams. Manages escalations, communicates technical performance and resolution timelines, tracks account health, drives satisfaction and retention, and develops scalable onboarding and account-management processes. Directly manages key B2B accounts while building the customer success function.

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.

Lead origination and execution of complex power-sector transactions with municipalities, cooperatives, and investor-owned utilities. Build executive-level relationships, source opportunities, negotiate commercial agreements, manage RFP and IRP engagements, and close equipment sales, service agreements, capacity contracts, and project partnerships. Represent Mainspring at industry events and customer sites, communicate market intelligence internally, and help shape product strategy. The role requires deep public power expertise, a strong utility network, transaction experience, and travel up to 50%.

Lead US channel sales for Mainspring’s distributed energy solutions. Recruit and onboard EPCs, energy developers, and integrators; orchestrate complex, high-value deals; enable partners through training; execute utility and data-center market strategies; own revenue quotas, pipeline health, partner performance, and forecasting. The role requires extensive energy or power-generation sales experience, technical and project-finance fluency, and a record of exceeding $10 million quotas.

Lead commercial growth and public power origination across municipalities, cooperatives, and investor-owned utilities. Source, structure, negotiate, and close complex energy transactions including equipment sales, service agreements, capacity contracts, and partnerships. Leverage executive utility relationships, manage RFPs and procurement processes, represent the company at industry events, and coordinate legal, regulatory, product, engineering, and finance teams. Provide market intelligence to influence product strategy. The role requires extensive power-sector transaction experience and up to 50% travel.

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.

Design, build, and scale cloud-native infrastructure across multi-cloud environments. Lead Terraform-based infrastructure as code, modernize CI/CD pipelines, automate operational support with Python and AI agents, and manage Kubernetes, Helm, containers, serverless, and microservices. Own projects from conception through production, establish security controls and AI guardrails, improve reliability and developer velocity, document architectures and runbooks, and mentor engineering teams.

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 root-cause analysis and redesign of mechanical components for durability and serviceability. Work hands-on at contract manufacturer to test, measure, rework, and validate improvements, integrate feedback into design and manufacturing processes, and support tooling and inspection efforts to improve product reliability.

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

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.

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

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.