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The Senior Certification Test Engineer executes certification, validation, and compliance testing for energy storage products. Responsibilities include hands-on laboratory testing, instrumentation setup, test data analysis, failure investigation, root cause analysis, technical reporting, certification documentation, equipment calibration, audit support, and collaboration with engineering, quality, manufacturing, compliance teams, external laboratories, and product development. The role also supports requalification, sustaining engineering, change management, and continuous improvement of testing processes.

Builds and maintains data pipelines, dashboards, databases, Linux infrastructure, and automated reporting tools supporting battery R&D and product testing. Responsibilities include managing laboratory data transfers and metadata, developing research and experiment tracking dashboards, integrating data solutions for battery system testing, supporting custom reporting, and collaborating with R&D teams on continual tool improvements.

Develop, test, debug, and maintain software for utility-scale battery power control and communication systems across RTOS, Linux, and Windows platforms. Collaborate with multidisciplinary engineering teams on requirements, algorithms, simulations, troubleshooting, certification testing, safety compliance, automated testing, software packaging, and documentation. Support DevOps deployment and maintenance activities.

Leads embedded firmware development for battery management systems, managing engineers and overseeing safety-critical software design, hardware integration, communication protocols, validation, documentation, and compliance. The role requires expertise in C/C++, RTOS, STM32 microcontrollers, CAN/CAN FD, RS-485, SPI, I2C, and IEC 60730 Annex H. Responsibilities include roadmap planning, process improvement, root-cause analysis, team development, and collaboration with hardware and cross-functional teams.

Develops software tools and utilities for battery management systems, including automated testing, data analysis, simulation, diagnostics, predictive maintenance, dashboards, and parameter configuration. Collaborates with battery engineers, firmware developers, and system integrators; integrates tools with existing platforms; configures Linux systems; documents solutions; and tests applications in factory and customer environments while following high-voltage safety standards.

Leads executive communications, external affairs, corporate storytelling, media relations, public relations, and creative campaigns. Develops messaging for executives, customers, investors, government stakeholders, and the public; translates technical energy-storage concepts into accessible narratives; supports advocacy, crisis communications, product launches, and reputation management. Partners cross-functionally with Marketing, Government Affairs, Investor Relations, HR, Sales, and leadership, while potentially coaching communications professionals and establishing scalable editorial processes.

Paid, fully onsite 10-week summer internship program supporting energy storage projects across engineering, manufacturing, safety, quality, science, technology, and corporate functions. Interns will work on hands-on business projects, analyze data, improve efficiencies, collaborate with experienced leaders, and present their accomplishments. Opportunities are available in Pittsburgh, Pennsylvania, and Edison, New Jersey.

The Quality Engineer ensures development products meet internal, external, and regulatory requirements. Responsibilities include root cause investigations, FMEA, verification and validation testing, inspection method development, acceptance criteria, process validation, design control documentation, supplier qualification, design transfer, audits, and maintenance of existing products. The role works cross-functionally with internal teams and external manufacturers to support product quality, design changes, supplier changes, remediation, recertification, and related initiatives.

The Sr. Reliability Engineer develops reliability models, conducts environmental testing, analyzes failure modes, and creates reliability test plans for battery management systems.

The Software Product Manager at Eos Energy will manage product development for energy storage solutions, conduct market research, collaborate with stakeholders, and ensure products meet requirements and timelines.