WHAT YOU'LL DO The Mechanical Facilities Engineer III will design HVAC and Plumbing/Piping systems for an exciting range of mission critical to mission support projects. Project work will encompass: Plan, conduct, and coordinate detailed phases of HVAC and Plumbing design work with calculations, process flow diagrams, piping and instrumentation diagrams, layout of mechanical equipment and associated duct and piping systems, and sequences of operations.Develop mechanical construction and equipment specifications, test and inspection plans, and system design descriptions.Evaluate, select, and apply standard techniques, procedures, and criteria to perform a task or sequence of tasks for projects with less complex features, but also collaborate and use judgment to determine adaptations in methods for non-routine aspects of assignments and more complex projects.Perform engineering quality assurance checks of project designs.Support new project proposals with mechanical discipline scopes, budget estimates, and schedules.Interface with and present designs to Federal, State, and Local government client contacts. The Mechanical Facilities Engineer III will be a key member of a multi-disciplinary team of architectural and engineering staff producing project design packages of drawings, specifications, and calculations. The position includes great leadership opportunity with task assignment and work coordination with engineers, designers, and administrative staff. Periodic travel to other Merrick offices or project site locations, including international travel, may be required.REQUIRED QUALIFICATIONS Degree Requirements: Bachelor of Sciences in Mechanical Engineering from an ABET Accredited Program is required. Engineering Technology degree will not be considered.Minimum eight (8) years of experience.PE License required.Ability to obtain a Department of Defense security clearance.Experience in HVAC and plumbing/piping systems design and associated engineering calculations (e.g. Air-handling systems, laboratory fume hood exhaust air systems, duct systems, heating and chilled water hydronic piping systems, natural gas piping systems, domestic water and waste water piping systems, steam and condensate piping systems, compressed air systems, and mechanical system controls).Experience sizing and selecting HVAC and plumbing/piping equipment (e.g. air-handling units, fans/blowers, pumps, cooling towers, chillers, boilers, coils, HEPA filtration systems, dampers, valves, and controls).Proficient in editing and writing mechanical construction and equipment specifications.Proficient in Microsoft Word and Excel.Experience using HVAC computer load and design programs such as Trane Trace software; knowledge of Revit building information modeling software; and familiarity with AutoCAD.Working knowledge of ASHRAE, SMACNA, and NFPA standards.Working knowledge of IMC, IPC, and IBC codes.The client projects for this position require U.S. Citizenship.DESIRED QUALIFICATIONS LEED or Green Globes accreditationPERKS Employee Owned - all eligible U.S. employees have an Employee Stock Ownership Account.Robust Employee Referral Program.Annual performance and compensation reviews.Professional Training and Development.Employee Recognition Awards.Peer Mentor ProgramAnd Much More!