Staff/Senior Engineer - Piping, Pipe Stress & Vessel

Mariana Minerals is looking for a highly motivated Staff/Senior Piping / Pipe Stress / Vessel Engineer with experience in piping, pressure vessel, and tank engineering. Mariana Minerals is building the critical minerals supply chain to support the world's energy transition. As a Staff/Senior Piping / Pipe Stress / Vessel Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also supporting development of software for capital project execution and automated plant optimization. Responsibilities will include leading basic and detailed engineering strategies, managing external engineering firms, staff-aug contractors, and internal teams, developing issued-for-construction engineering packages for piping and static equipment. What You'll DoConduct comprehensive flexibility and computational pipe stress analysis using Caesar II for various piping systemsDesign and analyze pressure vessels per ASME Section VIII Div 1 & 2 using PV Elite or Compress softwareProvide detailed markups on piping diagrams and isometrics to guide piping and structural designersSpecify pipe guides, anchors, supports, and alternative materials or suppliers to meet project schedulesReview and ensure the quality of 3D design work (Revit, Plant3D, CADWORX) by the Process Design Team, incorporating pipe stress and pressure vessel analysis resultsGenerate bills of material for supports, guides, anchors, stops, flex joints, and expansion joints for procurementPerform dynamic analyses, including slug flow, water hammer, and flange leakage checks, using Caesar IIConduct Finite Element Analysis (FEA) for critical vessel junctions using FE Pipe or Nozzle ProCommunicate the impact of stress and vessel analysis on designs and escalate concerns regarding schedules or material lead timesServe as the Subject Matter Expert on piping and pressure vessel design, ensuring compliance with ASME and ASTM codesMentor and guide junior engineers, staff augmentation engineers, and high-value engineering partnersEdit and tailor pipe and pressure vessel specifications to meet project-specific requirementsReview and approve final design documents, including isometrics, shop drawings, material submittals, and pipe support designsSupport onsite construction and commissioning by addressing technical questions and resolving issues in real timeContinuously improve project workflows and standards to ensure consistent, high-quality designs for piping and pressure vesselsWhat You'll BringStrong understanding of engineering fundamentals and demonstrated ability to leverage the understanding to solve challenging problemsA strong foundation in piping or vessel engineering with a demonstrated ability to apply first principles to solve complex design and field challengesBachelor's degree in Mechanical Engineering or related field10+ years of experience in piping and pressure vessel engineeringProfessional Engineer (PE) registration or ability to obtain within 6 months (preferred)In-depth knowledge of ASME piping codes (B31.3), ASME Section VIII Div 1 & 2, ASTM piping standards, structural codes, and building/fire codesExpert proficiency in Caesar II for pipe stress analysis and Nozzle Pro for allowable nozzle loadsHands-on experience designing pressure vessels per ASME Section VIII Div 1 (experience with Compress software preferred)Proficiency in AutoCAD, Revit, Navisworks, and BluebeamProven ability to collaborate in a cross-functional environment with structural, process, and high value engineering teamsExceptional communication skills to engage with stakeholders and clearly convey technical informationExperience with equipment engineering and design. Including but not limited to:Brownfield equipment modifications and upgradesGreenfield equipment designEvaluation and optimization of operating equipmentExperience with the following industries and/or production environments:Industrial manufacturingLarge-scale mining or mineral processingLarge-scale chemical production processesEngineering, procurement, and construction firms

Created: 2026-04-02