Senior Mechanical Designer
System One
Job Description
Job Description
Position Overview
System One is seeking a highly motivated Senior Mechanical Designer to support the design and development of advanced Generation IV nuclear reactor systems. This role is responsible for creating structural and mechanical design solutions, developing 3D CAD models, and producing detailed engineering drawings to support conceptual and preliminary design efforts.
The ideal candidate brings extensive experience in mechanical/structural design and drafting, with strong proficiency in SolidWorks and a deep understanding of engineering standards and design best practices.
Responsibilities
- Develop robust 3D CAD models using advanced modeling techniques to support rapid design evolution
- Create, maintain, and review complex mechanical and structural designs
- Perform trade studies and propose innovative design solutions
- Support engineering analysis needs (structural, thermal, safety, etc.) through model configurations
- Generate and review engineering drawings including layouts, details, and general arrangements in accordance with ASME Y14.1 and Y14.5 standards
- Perform tolerance stack-up analyses
- Review and check drawings for accuracy and compliance with drafting standards
- Maintain configuration control of models and drawings using PDM/PLM systems
- Document design progress, changes, and decisions
- Support technical documentation including reports, presentations, and design reviews
- Collaborate with internal teams and external suppliers to ensure design alignment
- Contribute to continuous improvement of design standards, processes, and documentation
Required Qualifications
- 15+ years of experience in mechanical/structural design and drafting
- Strong proficiency in SolidWorks
- Experience with Geometric Dimensioning & Tolerancing (GD&T)
- Experience creating and reviewing fabrication drawings
- Strong background in Design for Manufacturability (DFM) and Design for Assembly (DFA)
- Experience in mechanical and machine design
- Experience working with Product Data Management (PDM) systems
- Strong analytical and problem-solving skills
- Ability to manage multiple priorities with minimal supervision
- Excellent communication and documentation skills
Preferred Qualifications
- Experience working with supplier engineering and manufacturing vendors
- Nuclear or highly regulated industry experience
Additional Requirements
- High level of integrity, professionalism, and teamwork
- Detail-oriented with strong organizational skills
- Ability to work in a fast-paced, evolving engineering environment
Work Environment / Physical Requirements
- Prolonged sitting and/or standing
- Fine motor skills for computer-based work
- Ability to lift up to 25 lbs
- Standard office/engineering environment (>8 hours/day)
- Occasional travel (0–5%)
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
Ref: #161-Managed Staffing Charlotte$55 - $75 per hour
...Job Description Overview We are seeking a Senior Mechanical/Piping Designer to join our team in Exton, PA, Philadelphia, PA, Houston, TX, San Antonio, TX, Richmond, VA, Winchester, VA, Orange CT, Lauderdale, FL, Melbourne, FL, Tallahassee, FL Or Tampa FL. This...SeniorHourly payFull timeTemporary workFor contractorsRemote workFlexible hours$123.2k - $184.8k
Title:Spacecraft Mechanical DesignerBelong. Connect. Grow. with KBR! We are seeking an experienced mechanical designer to develop novel design concepts for space flight instruments including electro-mechanical systems, mechanisms, opto-mechanical, structures and Mechanical...SuggestedFull timeContract workWork at officeLocal areaFlexible hours- ...IronEagleX, a subsidiary of General Dynamics Information Technology (GDIT), seeks a Senior Principal Data Scientist in Crystal City, VA to transform large, complex data into actionable insights. You will work with analysts, software engineers, and stakeholders to develop...Senior
- Iron EagleX is seeking a Senior Principal Intelligence Analyst to lead all-source analysis and analytic production in Crystal City, VA. You will work with data scientists, engineers, and analysts to translate mission questions into data requirements and create defensible...Senior
- ...things possible not only in your community, but around the world.In the role of Senior Mechanical Engineer (Pipe Stress), we'll count on you to:Perform pipe stress analysis and piping design for projects and prepare reports on the findings.Coordinate the work of...SeniorContract workWork at office
$155k - $303k
...data sciences, consulting and customer obsession to accelerate our clients’ businesses through designing the products and services their customers truly value.OverviewAs a Senior Principal, you will actively participate in the growth and development of the Management...Senior- The Clearing, Inc. is seeking a Senior Principal Consultant to manage a client engagement within the Department of War. A DoD Secret clearance (active within 2 years) and onsite work in Alexandria, VA about three days per week are required. Senior Principals mentor teams...Senior3 days per week
- Iron EagleX is seeking a Senior Principal Intelligence Analyst, Agentic AI Integration to support our AI team in Crystal City, VA. The role infuses AI-enabled tools into analytic processes to accelerate and improve insights while ensuring validation, explainability, and...Senior
- ...succeed - today and into tomorrow. In our Mechanical Data Center team, we deliver high-impact... ...technical execution with thoughtful design strategies tailored to each project and... ...location. We are seeking an experienced Senior Mechanical Designer to support our fast-...Temporary workWork at office
$110k - $125k
OverviewSeeking an experienced Senior Naval Architectto support The USCG Ship Design Team's vessel modernization, and repair programsResponsibilitiesAs a Senior... ..., Marine Engineering, Naval Architecture, Mechanical Engineering, or related technical field from an ABET...SeniorWork at officeRemote work$130k - $190k
Job TitleSenior Mechanical EngineerLocationBethesda, MD 20800 US (Primary)CategoryResearch,... ...DescriptionPrescient Edge is seeking a Senior Mechanical Engineer to support a federal... ...Mechanical engineers research, develop, design, manufacture, and test tools, engines, machines...Senior$220k - $260k
STR, located in Arlington, Virginia, is seeking a Principal Technical Staff member to lead the development of technology solutions for national security challenges. The ideal candidate will have a Top Secret Clearance, extensive experience in project management, and an ...Senior- ...Senior Director, Principal Gifts About the Company Philanthropic organization supporting Indigenous culture & individuals Industry Non-Profit Organization Management Type Non Profit Founded 2017 Employees 11-50 Categories ~ Non-Profit &...Senior
$90k - $120k
Start designing tomorrow’s future! Buro Happold has an exciting opportunity for a talented Senior Mechanical Engineer to join our hybrid team in Washington, DC! As a Senior Mechanical Engineer you will have the opportunity to lead design for mechanical engineering across...SeniorPermanent employmentContract workSummer workImmediate startFlexible hours$120k - $148k
ARA is seeking a Senior Mechanical Engineer to support the design of equipment, tooling, and equipment interfaces for energetics chemical manufacturing systems and unmanned systems (UxS) programs supporting U.S. Government customers. This role spans a broad range of mechanical...SeniorFull time$126.4k - $189.6k
...team is on a mission to become the world’s leading integrated design practice. Our architects, engineers, interior designers,... ...design your place with Stantec.Your OpportunityWe are seeking a Senior Mechanical Engineer to help lead exciting and complex projects to join our...SeniorFull timeContract workTemporary workPart timeFor contractorsCasual workWork at officeLocal areaFlexible hours- ...Senior Mechanical Engineer We are hiring for a Senior Mechanical Engineer with 8+ years of HVAC and Plumbing design experience to join our Washington D.C. team! We are looking for a licensed Professional Engineer with experience in all aspects of design and documentation...SeniorWork at officeLocal area
- KBR seeks an experienced Spacecraft Mechanical Designer to develop design concepts for space flight instruments and MGSE. You will support the Spacecraft Mechanical Lead with concept design, detailed flight assembly modeling, and fabrication drawing generation in Creo and...Flexible hours
$100k - $160k
...TSC is seeking a highly motivated and skilled Mechanical Designer to support our customer in Washington, DC. The ideal candidate will be hands-on with a strong background in mechanical systems and equipment, assemblies and product development. This role involves everything...Contract workFor contractorsFor subcontractorLocal areaRelocation packageFlexible hours$100k - $137k
...company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more -... ...some of the boldest and most ambitious space missions.SENIOR MECHANICAL ENGINEER IAs a Mechanical Engineer at Rocket Lab’s Silver Spring...SeniorPermanent employmentLocal areaFlexible hours$105k - $125k
A professional engineering firm is seeking a Mechanical Engineer in Bethesda, MD. The role involves designing and evaluating HVAC systems across diverse sectors, including healthcare and education. Candidates must have at least 5 years of HVAC design experience and a Bachelor...$37 - $74 per hour
...Mechanical Designer Location: Bellevue, WA Job Type: Contract Work Model: Hybrid (Onsite & Remote) Schedule: 40 hours/week Pay Rate: $37.00 - $74.00/hour DOE System One is seeking a Mechanical Designer to support the design and development of advanced...Contract workTemporary workFor subcontractorLocal areaRemote work- ...Job Description Job Description Job Title: Mechanical Designer Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $37.00 - $74.00 Work Model: Onsite – onsite Hours: 40.0 Paid Holidays | PTO Overview System One...Contract workFor subcontractorLocal area
- A leading global engineering firm is seeking a Senior Mechanical Engineer for their Washington D.C. office. This position involves designing HVAC systems and coordinating with architecture and engineering teams. Candidates should have a Professional Degree in Engineering...SeniorWork at office
- Wagstaff, Inc. seeks a highly skilled Mechanical Designer 1 to join our Engineering & Design team. The selected candidate will contribute to the design and development of cutting-edge aluminum direct chill casting equipment. This position involves the application of engineering...
- ...Senior Mechanical Engineer The Senior Mechanical Engineer position is a full-time exempt position. The Senior Mechanical Engineer will be responsible to develop mechanical designs and/or drawings, performing structural analysis, and support manufacturing and hardware...SeniorFull timeLocal area
- Cornerstone Concilium in Alexandria, VA is seeking a Heavy Mechanical Engineer (Central Systems) for on-call services. This role focuses on designing, developing, and maintaining central systems for heavy machinery, requiring strong mechanical engineering background. You...Senior
- Jacobs is seeking a Senior Mechanical (Plumbing) Engineer to lead and deliver complex industrial plumbing designs for state-of-the-art facilities. The role is geographically flexible within the US, with 10-20% travel and hybrid work options. You will manage schedule and...SeniorFlexible hours
$160k - $180k
...world for good. Your impact Jacobs has an opportunity for a Senior Mechanical Engineer supporting our long-term project in Washington, DC.... ...engineer will act as a consultant in the establishment of MEP design standards and criteria for construction projects. Provide...SeniorFull timeWork at officeLocal areaShift work- ...architecture and engineering firm, is looking to add a seasoned Senior Mechanical Engineer with expertise in district utilities to our... ..., you will provide technical leadership across the planning, design, analysis, and delivery of district utility projects. You'll...SeniorWork at officeWork from home
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Mechanical Designer. Be the first to apply!
- mechanical drafter Washington DC
- senior technical analyst Washington DC
- senior associate attorney Washington DC
- senior developer Washington DC
- sr industrial security specialist Washington DC
- senior aws cloud engineer Washington DC
- senior manager business development Washington DC
- remote senior salesforce administrator Washington DC
- senior control systems engineer Washington DC
- senior marketing operations manager Washington DC


