Mechanical Designer 1 - Nuclear Power
Sargent & Lundy
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Reston, VA · Posted September 25, 2026
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Where Reston, VA ranks
Where Reston, VA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for operations pay after cost of living$177k · of 41
- #1Best all-round cities for remote workers in the Mid-Atlantic93 / 100 · of 37
- #1Best all-round cities for remote workers in the Southeast93 / 100 · of 33
- #2Best all-round cities for mid-career professionals in the Southeast75 / 100 · of 33
- #3Best cities for AI-skill jobs in the Southeast17% · of 87
- #3Best all-round cities for mid-career professionals in the Mid-Atlantic77 / 100 · of 37
Rankings about design jobs
- Best cities for design jobs #1 New York (717 openings)
- Most requested AI skills in design jobs #1 AI tools in daily work (14.5%)
- Employers with the most design jobs #1 Amazon (176 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
Responsibilities
Under the direction of the Mechanical Project Lead, this position will offer you the opportunity to work with multi-disciplined engineering and design project teams in developing mechanical general arrangement, piping isometric, pipe support, and mechanical equipment layout drawings in a 3-D model
Utilize Hexagon’s SmartPlant S3D modeling software and SPF database to generate mechanical design deliverables, BOMs, and commodity lists
Understand and interpret piping & instrumentation diagrams developed using SPID and create physical design consistent with the engineering requirements
Act as the mechanical design team lead in the coordination of detailed design phases for all aspects of an integrated mechanical design model
Resolve clashes and discrepancies in the 3D model and report status
Coordinate and provide guidance to other designers and project team members to ensure a complete and timely design
Independently plan and execute design of mechanical deliverables
Provide guidance as a mentor in the development of less experienced drafters and designers
Qualifications
We do not sponsor employees for work authorization in the U.S. for this position.
Essential skills and experience:
Experience with SmartPlant S3D modeling software including the following:
Understanding of the integration aspects of SPID, SPF and S3D
Clash detection resolution
Discrepancy checks between deliverables
Interface with SmartPlant Administrators in the development of mechanical deliverable templates and catalogs
Drawing Presentation Rules Set Up
Plant model data management
Minimum three years of detailed design experience in the development of mechanical plant design drawings; piping, pipe supports and equipment layout
Proficiency with design software tools in executing 3D plant layout models
Experience in the review of project deliverables and drawing requirements
Experience in the review of vendor drawings and interface points
Ability to interface with engineering and design teams of other disciplines in the plant design process.
Valued but not required experience:
Proficiency with MicroStation and AutoCAD
Microsoft Office tools
Technology & Innovation
Sargent & Lundy values the appropriate use of technology to improve how work gets done and deliver high-quality outcomes for our clients. Depending on the role, employees may use data, automation, artificial intelligence, and other digital tools to support research, analysis, engineering and design activities, workflow improvement, or other aspects of their work. We value candidates who demonstrate an interest in learning and effectively using emerging technologies where relevant to their role. Employees remain accountable for their work and are expected to apply appropriate professional judgment and review when using technology-assisted tools. Experience with AI, automation, programming, or similar technologies is valued where relevant but is not required unless specifically identified elsewhere in the job description.
About Sargent & Lundy
At Sargent & Lundy, we care about the health and well-being of our employees. Our commitment extends beyond the workplace, offering comprehensive healthcare plans and generous paid time off to support our team members in every aspect of their lives. We understand the importance of work-life balance, which is why we are proud to provide competitive, award-winning benefits. Our dedication to employee satisfaction has earned us the prestigious Top Workplaces Culture Excellence Award for compensation and benefits in 2022, 2023, and 2024.
Health & WellnessFinancial BenefitsWork-Life Balance
Health Plans: Medical, Dental, Vision
Life & Accident Insurance
Disability Coverage
Employee Assistance Program (EAP)
Back-Up Daycare
FSA & HSA
401(k)
Pre-Tax Commuter Account
Merit Scholarship Program
Employee Discount Program
Corporate Charitable Giving Program
Tuition Assistance
First Professional Licensure Bonus
Employee Referral Bonus
Paid Annual Personal/Sick Time (PST)
Paid Vacation
Paid Holidays
Paid Parental Leave
Paid Bereavement Leave
Flexible Work Arrangements
Compensation Range $58,925 - $84,728
Transparency Statement Sargent & Lundy discloses compensation ranges that comply with all local and state regulations. The total compensation package for eligible positions will include a base salary or an hourly rate and a comprehensive benefits package, reflecting our commitment to rewarding performance and supporting the overall well-being of our employees. Individuals may also be eligible to participate in our yearly discretionary bonus.
About This Business Unit
Join Sargent & Lundy's Nuclear Power Group and be part of a team driving the future of clean, carbon-free energy. Since 1954, we’ve been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects. Our work supports life extensions and digital modernization of existing nuclear plants, coal-to-nuclear conversion initiatives with the Department of State, and international nuclear new-build projects. With a commitment to safety, innovation, and sustainability, we provide cutting-edge solutions that power communities worldwide while reducing emissions. Shape the future of global energy with us!
Equal Opportunity
Sargent & Lundy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any protected status as defined by applicable law.