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Navarro Research and Engineering · 10 hours ago

Senior Mechanical Design Engineer (3621)

Oak Ridge, TN

Full-time

Onsite

Senior Level

5+ years exp

Navarro Research and Engineering is an award-winning federal contractor dedicated to partnering with clients to advance clean energy and deliver effective solutions for complex challenges in the nuclear and environmental fields. We are seeking a Senior Mechanical Design Engineer who specializes in designing and optimizing piping and mechanical systems within process-control environments that handle liquids or gases.

Environmental ConsultingTechnical SupportWaste Management

Growth Opportunities

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

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

Qualification

Mechanical design engineeringPipingFluid systemsPressure-drop calculationsFluid-flow optimizationStaticDynamic analysesCodesStandards knowledgeAnalytical skillsThermodynamics knowledgeMaterials science knowledgeProblem-solving skillsProject management skillsEffective communicationCollaborative mindsetMentoring skills

Required

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

Bachelor's degree in Mechanical Engineering (or a related field) from an accredited institution - or equivalent combination of education and experience

Ability to obtain and maintain a DOE Q-level security clearance

US citizenship is required