Mechanical Designer - P&ID

Geosyntec Consultants, Inc.; Oak Ridge (TN); On-site; USD 65,000 - 95,000; Full time

Benefits offered by this job

Competitive salary and benefits

In-house training and career pathing

Job summary

Longenecker & Associates, a Geosyntec Company, seeks a Mechanical Designer to contribute to projects at Centrus Energy in Oak Ridge, TN. You will develop and revise P&IDs, create PFDs and piping layouts, and coordinate with multi-discipline teams to ensure design accuracy and compliance with standards.

Ideal candidates have 3+ years CAD drafting experience, strong P&ID skills, and the ability to work in a regulated environment. Onsite position with comprehensive benefits and growth opportunities.

Qualifications

• Associate's Degree in Engineering Technology, Drafting and Design Technology, or a related technical discipline; Bachelor's Degree in STEM related field also acceptable.
• Experience with federal contracting requirements and the possibility of DOE Q clearance.
• Minimum of 3 years of professional CAD drafting and design experience.
• Demonstrated experience developing and revising P&IDs using AutoCAD.
• Proficiency in Microsoft Office applications.
• Strong understanding of engineering drawing standards, symbols, and drafting practices.
• Ability to read and interpret engineering specifications, process documents, and technical requirements.

Responsibilities

• Develop, revise, and maintain Process and Instrumentation Diagrams (P&IDs) using AutoCAD and AutoCAD P&ID.
• Create and update Process Flow Diagrams (PFDs), piping schematics, equipment layouts, and related engineering drawings.
• Incorporate process, piping, instrumentation, and control system information into engineering documentation.
• Coordinate with process, mechanical, electrical, and instrumentation engineers to implement design changes and ensure drawing accuracy.
• Verify engineering documents for compliance with company drafting standards, project specifications, and industry requirements.
• Maintain drawing revision histories and document control records.
• Support field verification efforts and incorporate as‑built conditions into engineering drawings.
• Collaborate with operations, maintenance, engineering, and project teams to resolve design and documentation issues.
• Drive continuous improvement initiatives related to engineering documentation and CAD processes.

Skills

CAD drafting

P&ID development

MS Office

Engineering drawing standards

Reading engineering specs

DOE Q clearance eligibility

Education

Associate's Degree in Engineering Tech/ Drafting

Bachelor's Degree acceptable

Tools

AutoCAD

AutoCAD P&ID

AutoCAD Plant 3D

Job description

Overview

Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 35 years. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Mechanical Designer to contribute to our mission supporting our work at Centrus Energy in Oak Ridge, TN.

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

• We invest in our people. Each employee is unique, and your career at Geosyntec will be too. We offercompetitive pay and benefits, and well-being programsto support you and your family.

To Learn More Visit:http://www.geosyntec.com/careers/.

Essential Duties and Responsibilities

Reporting directly to the Engineering Manager, the 2D CAD Designer will be responsible for developing, maintaining, and revising Process and Instrumentation Diagrams (P&IDs) and related engineering documentation to support facility, process, and equipment projects. The successful candidate will work closely with process, mechanical, instrumentation, operations, and project teams to ensure engineering drawings accurately reflect design requirements, operating conditions, and company standards. The designer will support multiple projects simultaneously while ensuring compliance with company standards, drafting practices, quality requirements, and safety procedures.

• Develop, revise, and maintain Process and Instrumentation Diagrams (P&IDs) using AutoCAD and AutoCAD P&ID.
• Create and update Process Flow Diagrams (PFDs), piping schematics, equipment layouts, and related engineering drawings.
• Incorporate process, piping, instrumentation, and control system information into engineering documentation.
• Coordinate with process, mechanical, electrical, and instrumentation engineers to implement design changes and ensure drawing accuracy.
• Verify engineering documents for compliance with company drafting standards, project specifications, and industry requirements.
• Generate and maintain equipment tags, line numbers, valve schedules, and instrument identification data.
• Support Management of Change (MOC) activities by updating drawings to reflect approved plant and process modifications.
• Perform drawing reviews and quality checks to ensure consistency, completeness, and accuracy of deliverables.
• Assist with the development and implementation of drafting standards, templates, and best practices.
• Maintain drawing revision histories and document control records.
• Support field verification efforts and incorporate as‑built conditions into engineering drawings.
• Collaborate with operations, maintenance, engineering, and project teams to resolve design and documentation issues.
• Drive continuous improvement initiatives related to engineering documentation and CAD processes.
• Manage multiple priorities and ensure deliverables are completed within established schedules.
• Adhere to company policies, procedures, code of conduct, security requirements, environmental requirements, and safety programs.

Education and Licensure

• Associate's Degree in Engineering Technology, Drafting and Design Technology, Mechanical Engineering Technology, or a related technical discipline; Bachelor's Degree in STEM related field also acceptable.

Skills, Experience and Qualifications

• Minimum of 3 years of professional CAD drafting and design experience.
• Demonstrated experience developing and revising P&IDs using AutoCAD.
• Experience with P&ID development.
• Proficiency in Microsoft Office applications.
• Strong understanding of engineering drawing standards, symbols, and drafting practices.
• Ability to read and interpret engineering specifications, process documents, and technical requirements.
• Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance if required.
• Due to federal contract security requirements, this position requires U.S. Citizenship.
• Health & Safety training, medical monitoring, and client-driven drug and background testing.
• Please note that marijuana remains a Schedule III controlled substance under Federal Law. Federal contractors must follow Federal drug-free workplace rules, which prohibit marijuana use, even if medical or recreational use is permitted under State Law.

Preferred Qualifications and Location Details

• Active Q clearance.
• Associate's or Bachelor's degree in Mechanical Engineering Technology, Process Engineering Technology, or a related field.
• 5+ years of AutoCAD experience.
• Experience with AutoCAD P&ID and/or AutoCAD Plant 3D.
• Experience in industrial, manufacturing, chemical, energy, utility, or process facilities.
• Familiarity with ISA instrumentation standards and P&ID conventions.
• Experience supporting process systems, piping systems, instrumentation, and controls documentation.
• Knowledge of document management systems and engineering change control processes.
• Field verification and as‑built documentation experience.
• Experience with quality-controlled environments and regulated industries.
• Project coordination experience.
• Onsite position – Oak Ridge, TN

Benefits and Compensation

• As an L&A employee, you will be eligible for a competitive salary as well as a comprehensive benefits package including healthcare (medical and dental), 401K plan, and paid time off.
• We believe in investing in our employees beyond compensation and as an L&A employee, you will have access to in-house training, career pathing, mentoring, award programs, tuition reimbursement and much more.

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