Principal Engineer - Mechanical HVAC Design Engineer

Seeking a Principal Engineer - Mechanical HVAC Design Engineer to support our client in Aiken, SC.Application Deadline: Wednesday, 10/07/2026 at 12:00 noon EST.Requirements:   The Contractor will define the scope of technical programs and develop effective, quality solutions to challenges involving unique or controversial problems. Creatively meet all company and industry requirements and apply site systems to achieve quality, timely and cost-effective results. Give quality guidance and assistance to less senior professionals on related tasks.Apply technical experience in field of specialization or broad-based experience in multiple technical fields, to resolve complex problems.Incorporate advanced technical practices and a variety of complex features such as complicated technical requirements, application of new or special materials or processes, and difficult coordination or oversight requirements into problem solving and program planning.Provide leadership in determining solutions to complex problems and be recognized as having expertise in a functional area(s) of technical expertise.Provide direction and position responsibility both inside and outside department lines on programs seeking new approaches to problems and new application of existing engineering or scientific principles.Evaluate the results of programs and prepares reports and recommendations based on these evaluations.Identify and recommend improvements where established technology components and methodology are inadequate for solution.Keep informed of the advancement of technology as applied through one's area of technology.Prepare plans including schedules, budgets and personnel requirements for solving technical tasks identified by management.Develop schedules, monitor progress, monitor expenditures of budget and review quality of work performed.Communicate results and objectives verbally and in manuscripts form to customers colleagues and management.Occasionally prepare reports for external publication.Enhance expertise in field through leadership in local technical societies. Demonstrate creative ability through medium of patent disclosures, problem solving, engineering reports, technical papers and articles.Additional DutiesProvide design engineering staff augmentation supportPrimary responsibilities include:HVAC design development and generation of design output documents including but not limited to calculations for equipment sizing, duct sizing, pressure drops, cooling tower sizing, heating and cooling loads, and air balancing.Create/modify piping and instrumentation diagrams, system descriptions, mechanical equipment lists, integration with fire protection design, and vendor document reviews.Engineering Services shall be provided using client processes and procedures. Programmatic guidance will be provided by the client.Additional Work RequirementsCandidate must be able to perform weekly field walk downs of the job site for the engineering work being performed. These walk downs may involve construction sites with uneven surfaces and work in progress, walking for distances of over half a mile, climbing of ladders to access remote areas, and dressing out in protective clothing.Work Hours: A 40 hour work week is scheduled. SRNS utilizes various work schedules including 5/8s (8 hour/day; five days per week), 4/10’s (10 hours/day; four days per week), and 9/80’s (9 hours/day, five days on week AA and four days on week BB. Work week excludes client holidays. Each workday has 30-minute lunch. Overtime will be expected at times to meet deliverables and will be utilized at the discretion of the Manager. The anticipated work schedule is Monday – Thursday, 6:45 am to 5:15 pm.Area Security Access: Candidate must be able to obtain and maintain a DOE “Q” security clearance. An active DOE clearance is not initially required to perform assigned duties. After award, the selected candidate will be notified when to apply for a clearance based on specific work assignments.Qualifications:    RequiredMust demonstrate 10 years HVAC design experience in the nuclear or process chemical industry.Must demonstrate knowledge of NFPA 90A, 90B, 91, and 801; ASHRAE Fundamentals; ASME AG-1, 509 and 510; SMACNA; and ARI 410, 430 and 450.Must have the ability to walk down systems in the field.Must be able to maintain and obtain a DOE “Q” clearanceEducationPh.D. degree in applicable science or engineering discipline and 5+ years’ experience. OR A MS with 8+ years’ experience. OR A BS with 10+ years’ experience or more. (BS Degree in Mechanical, Chemical or Nuclear Engineering or current registrationas a Professional Engineer in Mechanical, Chemical, or Nuclear Engineering).PreferredCandidates who have possessed an active DOE clearance (L or Q) within the past two (2) yearsCandidate demonstrates experience in 2D MicroStation Computer Aided Drafting and Design (CADD)Previous SRNS design experience and familiarity with the processes and procedures for providing engineering support to SRS facilitiesNOTE: U.S. citizenship is required to perform this government contract. Additional Information: OUTSOURCE Consulting Services, Inc. (OCSI.co) is an Equal Opportunity Employer. We welcome applicants of all backgrounds and take affirmative action to employ and advance qualified individuals with disabilities and protected veterans, in compliance with Section 503 of the Rehabilitation Act and VEVRAA. OCSI.co participates in E-Verify. Learn more about applicant rights under Federal Employment Laws.OCSI.co provides great benefits to our federal contractors: Holidays, PTO, Healthcare, Dental, Vision, Short/Long Term Disability, Life Insurance, Flexible Spending Account (FSA), 401(k) Savings Plan, Roth Elective Deferral, and Direct Deposit.To learn more about OCSI.co, please visit our corporate website at  . Thank you for your interest in our jobs. We look forward to seeing your resume!       Note: We are unable to sponsor H1B visas and/or subcontract to third-party vendors.    Need Assistance?If you need reasonable accommodation to apply for a position at OCSI.co, please email Human Resources with your request and contact information.