Senior Mechanical Design Engineer

Oak Ridge, TN

Contract

Posted August 14, 2025

$123k - $175k· Est.

Application opens on company website

Source: Workable View original listing
Freshness: Open in the current public read path; this is not an employer guarantee.Last observed October 7, 2026
Classification: Modern power-system classification not yet published for this listing.Legacy source industry field: Nuclear Energy
Pay provenance: Estimated benchmark; not employer-provided

Navarro Research and Engineering is recruiting for a Senior Mechanical Design Engineer in Oak Ridge, TN.

Lead the design, construction, and maintenance of facility piping systems, including rigorous component sizing and equipment selection (pumps, motors, heaters, blowers, valves, etc.).
Model pressure, flow, and thermal effects (steady‐state and transient) using CFD, FEA, and related tools; validate piping integrity under static and dynamic loads, and perform pipe-stress/structural analyses.
Develop, review, and red-line mechanical and piping drawings, plans, and specifications derived from engineering calculations; ensure compliance with codes, standards, and regulatory requirements.
Plan, schedule, conduct, and coordinate detailed phases of engineering work for major projects or for entire projects of moderate scope; prepare ROMs and detailed cost estimates, compile equipment specifications, and generate procurement documentation.
Participate in safety reviews, quality-assurance activities, training sessions, and regulatory audits; drive continuous improvement by integrating emerging technologies and best practices.
Produce technical reports, literature reviews, and progress updates; present findings and status briefings to stakeholders and senior management.
Direct the work of technical support staff and mentor junior engineers in mechanical and fluid-system design; guide troubleshooting and modifications to resolve equipment malfunctions.
Perform additional related tasks as assigned.

Five to twelve (5 – 12) years of mechanical design-engineering experience with a strong focus on piping and fluid systems (industrial liquid or gas processes).
Demonstrated expertise in pressure-drop calculations, fluid-flow optimization, and equipment sizing/selection.
Proficiency in static and dynamic piping analyses, including pipe-stress and support-structure calculations.
Prior experience in highly regulated or process-driven industries (nuclear, chemical processing, oil & gas, HVAC, etc.).
Familiarity with relevant codes and standards (ASME or equivalent) and proven ability to integrate them into efficient designs.
Strong in fluid mechanics, thermodynamics, and materials science.
Proven history of analytical, problem-solving, and project-management skills; effective oral and written communication; collaborative mindset when working with cross-functional teams.
Education & Certification
Additional Requirements
Due to the nature of the government contract requirements and/or clearances requirements, US citizenship is required.