Senior General Designer (Mechanical)

Harvestaff; Chesterfield (MO); On-site; USD 118,000 - 129,000; Full time

Job summary

HarveStaff LLC in Chesterfield, MO seeks a Senior General Designer (Mechanical) to lead mechanical design activities for capital projects across regional/global scopes. Develops safe, reliable, and constructible designs while mentoring junior designers and coordinating with vendors and engineers.

The role requires 10+ years of experience, strong CAD/3D skills, and the ability to guide cross-functional teams through design reviews, field verification, and installation support.

Qualifications

• Senior mechanical designer with lead role on capital projects.
• Experience with CAD/3D tools and vendor coordination.
• Ability to mentor designers and lead multi-site projects.
• Strong problem-solving and communication.

Responsibilities

• Serve as the mechanical design discipline lead for large and complex capital projects.
• Lead mechanical design activities and project closeout documentation in accordance with engineering execution and document-control requirements.
• Develop mechanical design packages, including 3D models, equipment arrangements, general arrangement drawings, fabrication and installation details, equipment supports, access platforms, and vendor-data integration.
• Provide technical guidance on 3D modeling, equipment layout, mechanical detailing, maintainability, and construction coordination.
• Develop mechanical designs that meet project, process, safety, operability, maintenance, reliability, and constructability requirements.
• Model and detail mechanical equipment and components, including connections, supports, guards, access provisions, lifting and removal clearances, and system interfaces.
• Provide technical oversight of equipment vendors, engineering consultants, design contractors, and fabrication or installation contractors.
• Support field verification, constructability reviews, installation, commissioning, checkout, and resolution of design-related field issues.
• Develop and maintain mechanical design standards, specifications, standard details, libraries, templates, and CAD/3D design tools.
• Communicate project scope, design decisions, risks, status, and technical issues to project teams, leadership, stakeholders, and site representatives.
• Coordinate mechanical design interfaces across disciplines and conduct design, model, interference, and clash-resolution reviews.
• Verify existing field conditions and incorporate site information, applicable codes and standards, vendor requirements, and project specifications into designs.
• Review and approve mechanical drawings and models for technical accuracy, completeness, consistency, and quality.
• Mentor less-experienced designers and promote consistent design practices and effective use of CAD/3D tools.
• Collaborate with engineers, designers, project managers, procurement, construction, commissioning, maintenance, operations, and safety teams.
• Interface with equipment vendors, fabricators, design consultants, EPCM firms, and construction contractors.

Skills

Mechanical design leadership

3D CAD modeling

Equipment layout

Codes & standards

Vendor coordination

Cross-functional teamwork

Mentoring designers

Interdisciplinary coordination

Field verification

Document interpretation

Education

Associate degree in Design

Bachelor’s degree in Engineering

Job description

Senior General Designer (Mechanical)

JOB-10047598

Anticipated Start Date

September 29, 2026

Location

Chesterfield, MO

Type of Employment

Contract

Employer Info

As a global leader in agriculture enterprise, our client is recognized for their multiple brands and renowned reputation. Their research and development teams combine knowledge and ingenuity to create the most innovative ideas. With their cutting-edge products, they have a common goal: improved quality of life for all.

Job Summary

If you're interested in a Senior General Designer (Mechanical) job, then this is the best role for you! This role leads mechanical design activities for capital projects, supporting multiple sites and projects across a regional or global scope. Develops safe, efficient, reliable, and constructible mechanical designs while providing technical leadership throughout project execution. Supports design standards, CAD/3D tools, vendor coordination, field activities, and mentoring of less-experienced designers.

Job Description

• Serve as the mechanical design discipline lead for large and complex capital projects.
• Lead mechanical design activities and project closeout documentation in accordance with engineering execution and document-control requirements.
• Develop mechanical design packages, including 3D models, equipment arrangements, general arrangement drawings, fabrication and installation details, equipment supports, access platforms, and vendor-data integration.
• Provide technical guidance on 3D modeling, equipment layout, mechanical detailing, maintainability, and construction coordination.
• Develop mechanical designs that meet project, process, safety, operability, maintenance, reliability, and constructability requirements.
• Model and detail mechanical equipment and components, including connections, supports, guards, access provisions, lifting and removal clearances, and system interfaces.
• Provide technical oversight of equipment vendors, engineering consultants, design contractors, and fabrication or installation contractors.
• Support field verification, constructability reviews, installation, commissioning, checkout, and resolution of design-related field issues.
• Develop and maintain mechanical design standards, specifications, standard details, libraries, templates, and CAD/3D design tools.
• Communicate project scope, design decisions, risks, status, and technical issues to project teams, leadership, stakeholders, and site representatives.
• Coordinate mechanical design interfaces across disciplines and conduct design, model, interference, and clash-resolution reviews.
• Verify existing field conditions and incorporate site information, applicable codes and standards, vendor requirements, and project specifications into designs.
• Review and approve mechanical drawings and models for technical accuracy, completeness, consistency, and quality.
• Mentor less-experienced designers and promote consistent design practices and effective use of CAD/3D tools.
• Collaborate with engineers, designers, project managers, procurement, construction, commissioning, maintenance, operations, and safety teams.
• Interface with equipment vendors, fabricators, design consultants, EPCM firms, and construction contractors.

Skills Required

• 10+ years of progressively responsible mechanical design experience.
• Proficiency with 2D CAD and 3D model-based design systems for mechanical equipment layout and detailing.
• Strong knowledge of mechanical design principles, equipment arrangement, tolerances, materials, fabrication practices, and installation methods.
• Working knowledge of applicable mechanical codes and standards.
• Ability to interpret process and engineering documents, vendor drawings, specifications, equipment data, calculations, and field information.
• Ability to translate technical information into coordinated mechanical design deliverables.
• Strong project coordination and design review skills.
• Ability to manage multiple concurrent projects and prioritize assignments.
• Strong technical problem-solving and decision-making skills.
• Effective communication skills with both technical and nontechnical stakeholders.
• Ability to lead multidisciplinary coordination and resolve design or technical issues.
• Ability to mentor and provide technical guidance to other designers.
• Ability to support multiple sites and projects concurrently on a regional basis and, as needed, across global business operations.
• Experience working with equipment vendors, engineering consultants, design contractors, fabricators, and construction contractors.
• Experience supporting field verification, constructability reviews, installation, commissioning, and design-related issue resolution.
• Ability to work effectively with cross-functional teams, including engineering, procurement, construction, operations, maintenance, reliability, and safety.
• Ability to lead mechanical design activities and provide technical oversight within assigned project scope.

Education/Training/Certifications

• Associate degree in Design, Drafting Technology, Mechanical Engineering Technology, or a related field.
• Bachelor’s degree in Engineering may be considered.
• Equivalent combination of education and relevant experience may be considered.

Additional Requirements

• Must be able to pass drug screenings and criminal background checks
• Start Time: 08:00 AM

Pay Rate/Salary

• Estimated Salary: $86.43 to $94.43 per hour. Compensation will be offered within this posted range based on experience, skills, and market factors.

HarveStaff LLC is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status, or other characteristics protected by law.