Mechanical Engineer III SeniorLevel

Mechanical Engineer III (Senior-Level)Location: Las Colinas, TXDepartment: Mechanical EngineeringReports To: Director of Mechanical EngineeringExperience Level: 7+ years (MEP consulting)Compensation: Competitive senior-level compensation, based on experience and technical leadership.Role SnapshotThis is a senior mechanical engineering role for someone who can design, lead, mentor, and problem-solve without needing guardrails. You'll work on mission-critical and highly technical projects, provide technical direction to teams, support client relationships, and take real ownership of project outcomes. This role sits just below (or at) Engineer of Record level depending on licensure and experience.If you like accountability, autonomy, and leading engineers through complex work—this role is built for that.Position OverviewThe Mechanical Engineer III is responsible for independently developing mechanical system designs, overseeing quality control, mentoring engineers and designers, and supporting both project delivery and business development efforts. This role requires deep technical expertise, strong judgment, and the ability to lead projects and people while coordinating closely with leadership and clients.Key ResponsibilitiesMechanical Design & Technical Leadership Design HVAC and mechanical systems for mission-critical, telecommunications, commercial, and government projectsIndependently develop design concepts with senior-level quality control oversightPerform and review heating, cooling, ventilation, exhaust, and energy calculationsDesign ductwork, hydronic, and fuel oil systems per firm standardsSize ductwork and piping using established engineering guidelinesPerform energy modeling for code compliance and LEED certificationApply and interpret industry-standard and local building codes Production, Quality & Coordination Produce and review construction documents using AutoCAD and RevitPerform quality control reviews of drawings and specificationsCoordinate designs across architectural, civil, electrical, and technology disciplinesIdentify coordination issues and proactively resolve themDevelop technical reports, studies, flow diagrams, and narrativesDocument basis of design, equipment schedules, and system requirements Construction Administration Review submittals, RFIs, and change ordersPerform site visits, field observations, and punch list documentationCollaborate with the Engineer of Record or act in support of that role Leadership, Mentorship & Business Support Provide technical direction and mentoring to engineers and designersAssist with training and professional development of staffAssist in maintaining and developing client relationshipsSupport development of project proposals and cost estimatesIdentify process improvements and communicate recommendations to leadershipProject TypesMission-critical facilitiesData centersTelecommunicationsCommercial and government buildingsNew construction and complex retrofit projectsRequired Experience & SkillsMinimum 7 years of experience in an MEP consulting environmentAdvanced HVAC and mechanical systems design expertiseExpert proficiency in AutoCAD, Revit, Microsoft Office, and BluebeamExpert-level experience with load and energy analysis software (HAP, Trace 700, or equivalent)Strong command of mechanical and energy codesProficiency in construction cost estimating (MEANS)Experience with LEED and WELL sustainability standardsAbility to independently lead design efforts and mentor othersStrong client-facing communication skillsPreferred QualificationsProfessional Engineer (PE) registration preferredExperience serving as Engineer of Record or supporting that roleProven experience leading teams and managing complex stakeholdersCore CompetenciesLeads through accountability, clarity, and follow-throughBalances technical excellence with practical decision-makingCommunicates proactively—no surprisesCoaches and develops others effectivelyAdapts quickly to competing prioritiesTackles issues head-on and drives them to resolutionDelegates appropriately and holds teams accountableBuilds trust with clients and internal stakeholdersEducationBachelor of Science in Mechanical Engineering from an accredited universityTravelApproximately 10%, project-based