Senior Mechanical Designer 1 - Nuclear Power
Location
Wilmington, DE
Wage
$77,890 – $118,999/yr
Apply for This Position
Posted on November 7, 2026
Job Description
Overview
The Senior Mechanical Designer 1 position at Sargent & Lundy offers a hybrid work schedule, allowing for both in-office and remote work. This role involves working with multi-disciplined engineering teams to develop mechanical layout drawings and solve various mechanical design issues in the nuclear power sector.
Responsibilities
- Develop mechanical physical layout drawings in a 3-D model.
- Design mechanical systems and troubleshoot mechanical design issues.
- Utilize 3D modeling software to generate mechanical design schematics.
- Act as the Mechanical design team lead for detailed design phases.
- Coordinate and guide other designers and project team members.
- Independently plan and execute design deliverables.
- Conduct field walkdowns and data gathering at client facilities.
- Mentor less experienced drafters and designers.
Requirements
- An Associate's Degree in drafting or equivalent technical experience.
- Ten or more years of detailed physical design experience.
- Proficiency with design software tools for 3D plant layout models.
- Experience in reviewing mechanical equipment and developing deliverables.
- Ability to interface with engineering and design teams of other disciplines.
Benefits
- Health Insurance
- Dental
- Vision
- 401k
- PTO
Additional Information
- Hybrid work schedule with a mix of in-office and remote work.
Benefits
Health Insurance
Dental
Vision
401k
PTO
How this job compares in Wilmington, DE
Pay in context
At roughly $47/hr, this posting sits about 35% above the $35/hr median for welding jobs across Delaware — toward the top of a $30–$42/hr middle band drawn from 8 postings with published pay. Put another way, it pays more than about 100% of the comparable postings we have wage data for. Pay that far above local median usually comes attached to something: a harder cert requirement, travel, night shift, or overtime that isn't really optional. Worth establishing which before you accept.
The local market in Wilmington, DE
Wilmington, DE currently has 7 other active welding openings besides this one, spread across 5 employers. 5 of them were added in the last week. Across Delaware as a whole we're tracking 20 other active welding openings from 15 employers. That's enough local activity to be worth comparing two or three offers before committing. Browse every welding job in Wilmington, or widen the search to Delaware.
Sargent & Lundy currently has 3 other openings live in Delaware, which is usually a sign of either steady growth or steady turnover — worth asking which in the interview.
The most active employers in Delaware at the moment, by number of open welding reqs, are Sargent & Lundy (3), Baltimore Aircoil Company, Inc. (3), and Graver Technologies, LLC (2). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.
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Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Senior Mechanical Designer 1 - Nuclear Power figures were last recalculated when this page was built.