Mechanical Engineer III

Senergy Power Solutions•Saint Augustine, FL

40d•$82,000 - $95,000•Hybrid

About The Position

We are seeking a Mechanical Electrical Engineer III to support the ongoing update, design, and development of hybrid power and energy systems. This role focuses on sustaining and updating defined mechanical and electrical components and systems. The role will contribute computer-based and hands-on work across the product lifecycle, including validation, documentation, and production support. This is a practical, execution-focused engineering role within a manufacturing environment. It requires lab presence, attention to detail, and accountability for design quality and follow-through. This is not an entry-level or purely theoretical position.

Requirements

5-6+ years in a mechanical engineering role
Bachelor’s degree in Mechanical Engineering or a closely related field from an ABET-accredited institution
5-6+ years of experience in mechanical engineering within product development, sustainment, manufacturing, or power electronics environments
Strong organizational and tracking capabilities
Ability to manage multiple priorities at the same time
Ability to identify and escalate risks or gaps
Proficiency with SolidWorks or equivalent CAD tools
Familiarity with simulation tools (SPICE, MATLAB, or similar)
Experience with mechanical design, prototyping, and testing
Ability to translate requirements into manufacturable designs
Experience developing and executing test plans
Strong analytical and problem-solving skills
Hands-on experience with lab equipment and basic hand tools
Clear written and verbal communication skills
Self-directed with a collaborative mindset
Attention to detail and follow-through

Nice To Haves

Experience with solar, hybrid power, or ruggedized systems
Familiarity with UL, NEC, IEC, ANSI, and military standards
Knowledge of thermal management
Experience with embedded systems or hardware/firmware integration
Experience with ECO processes
Familiarity with time/project logging tools
Experience working with production or manufacturing teams

Responsibilities

Design and sustain the mechanical aspects of products related to power and control systems for renewable, hybrid, and ruggedized applications
Create 3D models, documentation updates, technical manuals, customer-facing documentation, and system-level mechanical designs.
Balance performance, safety, environmental, and compliance considerations
Work on mechanical subassemblies within larger systems
Focus on work related to documentation updates, redline feedback, and changes for production in all mechanical aspects of the project
Process Engineering Change Orders
Troubleshoot issues and implement design improvements
Support field testing and incorporate feedback into design revisions
Produce accurate technical documentation including schematics, BOMs, layouts, and test reports
Ensure designs are manufacturable, serviceable, and properly released to production
Maintain clear design history and change documentation
Work closely with electrical engineers, production team members, supply chain processes, and quality teams
Participate in design reviews and peer feedback
Support Engineering teammates through collaboration and shared problem-solving
Identify opportunities to improve cost, reliability, and manufacturability
Support compliance with applicable standards and certifications
Provide internal and customer technical support as needed
Provide feedback and updates to the Technical Manual, Engineering Processes, and ISO 9001 process details.
Handle product Variances, Production Documentation, Redline processes, and ECO processes.
Take on additional duties to support departmental and organizational goals
Step in where needed to support engineering execution and maintain momentum.
Occasional travel up to 10% for field support or collaboration may be required as assigned to fulfill job responsibilities.
Additional duties may be assigned as necessary to support departmental and organizational goals.
Scope will be limited to ongoing and incoming mechanical engineering work, as well as the standards and process improvements needed for future growth and accountability
Support the Engineering Process Lead to report out how engineering work is tracked, communicated, and coordinated
Help maintain visibility into project status, risks, and timelines
Drive engineering process consistency
Support teammates in following established processes and expectations