PROCESS / MECHANICAL PRINCIPAL ENGINEER 12000 - Greenville, SC

Welcome to OLH, Inc. Join a Team That Delivers on Complex, High-Impact Projects! PROCESS / MECHANICAL PRINCIPAL ENGINEER – Greenville, SC Location: Greenville, SC Duration: 1 Year with renewal options Positions Available: 5 US Citizenship Required JOB SUMMARY: The Process / Mechanical Principal Engineer provides technical leadership and direction for complex engineering projects involving process and mechanical systems. This role leads multidisciplinary engineering efforts and ensures technical excellence across all phases of project execution. The position serves as a senior technical authority, supporting project planning, design, and execution within regulated environments. DUTIES / RESPONSIBILITIES: The Principal Engineer provides leadership and technical direction to engineering teams while overseeing design development and project execution. Responsibilities include planning and coordinating engineering activities, reviewing and approving design calculations, specifications, and P&IDs, and ensuring technical accuracy across all deliverables. The role collaborates closely with engineering teams, project management, vendors, and stakeholders to resolve complex technical challenges and ensure project success. Additional responsibilities include supporting procurement activities, reviewing construction documentation, and providing guidance during construction and startup phases. WORK HOURS: A standard 40-hour work week is expected. Overtime may be required to meet project deliverables. REQUIRED QUALIFICATIONS – EDUCATION & EXPERIENCE: Education: Bachelor of Science degree in Mechanical or Chemical Engineering required. Experience / Skills: Minimum fifteen (15) years of related engineering experience Extensive experience in mechanical and process system design Strong leadership experience supporting complex engineering projects Expertise in P&IDs, specifications, and engineering calculations Knowledge of applicable federal, state, and local codes and standards Strong communication and decision-making skills OTHER REQUIRED QUALIFICATIONS: U.S. Citizenship required Familiarity with computer-aided drafting applications Ability to work in compliance with applicable codes and project requirements PREFERRED QUALIFICATIONS: Professional Engineer (PE) license Experience supporting DOE or Federal Government projects Nuclear project experience Demonstrated experience leading large engineering efforts ACTION REQUIRED Please apply by uploading your resume using the link provided. EQUAL OPPORTUNITY EMPLOYER OLH Inc. is an Equal Opportunity Employer. OLH ensures nondiscrimination and equal employment opportunity in all programs and activities in accordance with applicable laws and regulations.