Trystar · 3 hours ago
Staff Mechanical Engineer
Merrimack, NH
Full-time
Onsite
Senior Level, Lead/Staff
7+ years expTrystar is a leader in power inverters and distribution equipment, dedicated to providing high-quality products and services. They are seeking a Staff Mechanical Engineer to lead design efforts in Power Conversion Solutions, ensuring project success through collaboration with internal and external stakeholders. The role involves mechanical design, advanced engineering analysis, and providing technical guidance across multiple product lines.
Electrical DistributionElectronicsManufacturing
Responsibilities
Perform complete mechanical design, including layout, part/assembly modeling, drawings, and mechanical requirements definition
Support advanced engineering analysis, including system-level thermal analysis, Finite Element Analysis (FEA), and Computation Fluid Dynamics (CFD) simulations
Define, design, prototype, validate, and support mechanical systems for products such as Rack-Mounted equipment, modular power devices, UPS’s, Rectifiers, Inverters, and more
Lead mechanical design reviews and provide technical guidance across multiple product lines at Trystar sites
Work with hardware design engineers to develop PCB mounting and packaging requirements
Develop detailed 3D CAD models and drawings, including complex surfaces, routed assemblies, and mechanical enclosures
Collaborate with cross-functional teams (QA, Manufacturing, Assembly) to improve product designs, documentation, and manufacturability
Design and validate assembly and test fixtures; support prototype builds and production launches
Manage BOMs, documentation for new and existing parts, using database tools (e.g., Empower, PDM, Epicor)
Answer vendor questions regarding mechanical parts (change requests, obsolescence, substitution)
Define and document mechanical requirements and best practices for enclosures of power conversion systems
Contribute to efforts to standardize design practices across sites
Provide technical mentorship and guidance to design engineers, test technicians, fabrication, and assembly personnel
Qualification
Required
Bachelor's degree in Mechanical Engineering or an equivalent
Minimum seven (7) years of experience as a mechanical design engineer, preferably in power electronics design/packaging
Experience with power electronic system design (electrical enclosures, panel layout, seismic considerations, heat management) within electrical equipment, heavy industry, or military sectors
Proficiency with major ERP and CAD systems (SolidWorks or equivalent)
Working knowledge of industry codes and standards: ASME standards, NEMA, UL, IEC, and other applicable standards within mechanical engineering discipline
Proficient in generating and reviewing engineering documentation including BOMs and detailed drawings for sheet metal, plastic, and extruded parts
Proficient with Microsoft Office applications and Microsoft Cloud services
Travel up to 20% within the USA and Canada
Preferred
Experience with UL 1741, CSA C22.2, and others
Strong communications skills (oral, written, and presentation) with the ability to influence across all levels of the organization, including in-person and remote interactions
Ability to adapt & thrive in a fast-paced/evolving work environment
Professional Engineer (PE) license is a plus
Ability to excel working as the sole mechanical engineer on a project
Ability to create project requirements from incomplete inputs
Strong understanding of structural and thermal analysis (FEA/CFD tools such as SolidWorks (Flow) Simulation, ANSYS, COMSOL, or similar)
Company
Trystar
Trystar is a design and manufactures our products to meet the industry.
501-1000 employees
H1B Sponsorship
Trystar has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (2)
2023 (1)
2022 (1)
Funding
Current Stage
Late StageTotal Funding
unknown2024-07-16Acquired
Leadership Team
A
AJ Smith
Chief Executive Officer
P
Pamela Dahl
Co-Founder
Recent News
Seattle TechFlash
2025-09-17
Seattle TechFlash
2025-07-14
Google Patent
2025-02-16
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