Mesa Associates is seeking a Mechanical Engineer to join our team, working closely with our Principal Mechanical Engineer and building bench depth alongside our Senior Mechanical Engineer. This is a hands-on design role: you will be doing piping and pressure vessel design work day to day, not just supporting others, with senior guidance available along the way. Prior HVAC exposure is a plus but not required. We value a strong work ethic and a positive, coachable attitude as much as technical skill. Core Competency: Piping & Pressure Systems Design What We're Looking For • Solid working knowledge of ASME B31.1/B31.3 piping codes and familiarity with ASME Boiler & Pressure Vessel Code Section VIII fundamentals • Comfortable sizing, routing, and specifying piping for power or industrial applications, including basic material selection and wall thickness calculations • Growing experience with piping stress analysis tools such as AutoPIPE and/or Caesar II • Proficient computer skills, including Microsoft Office Suite; familiarity with Plant3D, AutoCAD, MicroStation, or SolidWorks preferred What You'll Do • Perform piping design, sizing, and routing tasks under senior engineer guidance • Prepare engineering designs and supporting documents, including calculations, drawings, and specifications, for piping and pressure vessel scopes • Support process calculations, such as flow rate, pressure drop, and line sizing, directly within the Mechanical Engineering group; Mesa does not have a separate Process Engineering function, so this work sits with Mechanical • Perform walkdowns and collect field data on existing piping and pressure equipment Secondary Experience: HVAC Experience (a plus, not required) What We're Looking For • Any exposure to industrial HVAC design, load calculations, or ductwork sizing is a plus, though not required to be considered for this role What You'll Do • Support HVAC-related scopes as interest and experience allow, working alongside the Senior Mechanical Engineer (Generalist) Leadership & Team Role • Work closely with the Principal Mechanical Engineer (Piping & Pressure Systems), who will check your work, verify code compliance, and provide mentorship and support, though you'll own and execute your own design assignments day to day • Collaborate with the Senior Mechanical Engineer (Generalist) on shared or HVAC-adjacent scopes • Build deep piping and pressure system design skills as the primary focus, with optional growth into HVAC over time • Bring energy, curiosity, and a willingness to learn, with the expectation of taking on more ownership and eventually mentoring junior engineers as experience grows Qualifications • Bachelor's degree in Mechanical Engineering (required) • 5 to 10 years of experience in piping design, ideally in power generation or industrial environments • Comfortable performing design calculations and producing deliverables independently, with senior review • HVAC design exposure is a plus, not required • Strong written and verbal communication skills; works well across multi-discipline project teams • Well organized, curious, and quick to spot issues and offer practical solutions • A positive, team-first attitude and a genuine willingness to pitch in wherever the team needs it Notice to External Search Firms: Mesa Associates, Inc. and its subsidiaries do not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Mesa Associates, Inc. Talent Acquisition engages with approved search firms directly for specific hiring needs.