Staff Engineer EPCM

Job Description:

Process and Mechanical Basic Engineering:

• Develop concept- and basic-engineering deliverables for hydrogen production facilities including design basis documents operating cases process descriptions process flow diagrams preliminary heat and material balances utility summaries equipment lists line lists P&IDs equipment datasheets and process/mechanical scope documents.
• Develop maintain and independently use auditable Excel-based engineering models for preliminary calculations with clear assumptions units input/output separation error checks sensitivity cases revision control and calculation notes.
• Perform first-principles and spreadsheet-based calculations for gas-flow conversion mass balance preliminary compressor duty and power buffer and storage capacity filling cycles pressure drop cooling duty utility consumption vent/drain loads and other concept- and basic-engineering requirements.
• Define process conditions design pressures and temperatures turndown and operating scenarios utilities control interfaces tie-ins battery limits and project-specific design assumptions.
• Prepare preliminary equipment sizing and selection inputs and establish the technical basis required for supplier quotations and EPC pricing.
• Review and challenge calculations simulations datasheets and design inputs received from Applications Engineering EPC contractors consultants and vendors.
• Recognize the limits of preliminary calculations and identify when specialist simulation dynamic analysis detailed stress analysis safety studies or third-party validation is required.
• Identify process and mechanical integration risks related to pressure temperature flow materials compatibility water quality drainage venting relief control philosophy start-up shutdown and abnormal operating scenarios.

Hydrogen Downstream Systems and Mechanical Packages:

• Define technical and interface requirements for hydrogen compression packages including inlet/outlet conditions flow pressure ratio compression stages cooling utilities controls footprint access maintainability noise vibration installation and performance guarantees.
• Develop sizing and specification inputs for buffer vessels pressure vessels high-pressure storage systems gas coolers dryers purifiers separators filters condensate handling and associated piping valves instruments and utility systems.
• Support the technical definition and integration of hydrogen delivery and downstream applications including tube-trailer loading bays cylinder or cascade filling hydrogen dispensers and refueling stations storage and export systems and project-specific pipeline or off-taker interfaces.
• Define mechanical package battery limits and interfaces with the electrolyzer water systems electrical supply controls safety systems civil works buildings drainage vents and EPC plant design.
• Review package layouts utility loads nozzle and connection requirements vendor drawings foundation loads access and maintenance clearances lifting requirements and installation constraints.
• Evaluate material selection and compatibility for hydrogen and utility services considering pressure temperature purity corrosion embrittlement risk cleanliness and applicable project requirements.
• Support technical optimization and value engineering.

Supplier RFQ Technical Evaluation and Cost Estimation:

• Identify and prequalify suitable suppliers and package vendors
• Prepare complete technical RFQ packages including datasheets.
• Manage supplier technical clarifications and quotation timelines
• Prepare technical quotation evaluations deviation lists clarification logs and recommendation summaries; and identify scope or pricing gaps.
• Develop budgetary and basic-engineering CAPEX estimates and detailed cost breakdowns for process and mechanical BOP.
• Develop and maintain Excel-based cost models and a structured cost database.
• Prepare preliminary BOMs BOQs and MTOs
• Identify cost-reduction opportunities alternative technical solutions and supplier strategies.

EPC Partner and Project Execution Support:

• Support EPC partner engagement during project development phase
• Review relevant EPC and vendor deliverables for alignment with the agreed design basis scope performance requirements and equipment interfaces.
• Support technical query resolution design reviews interface coordination change-impact assessment and closure of preliminary engineering assumptions during project execution.
• Participate in HAZID HAZOP design reviews constructability reviews.
• Provide occasional site and construction support for technical clarification installation readiness package interfaces testing and commissioning preparation;

EDUCATION AND EXPERIENCE REQUIRED :

• Bachelors degree in Chemical Engineering Process Engineering Mechanical Engineering or a closely related discipline. Post graduation in any engineering discipline is a plus.
• 8-12 years of relevant experience in process engineering mechanical package engineering applications engineering within hydrogen industrial gas oil and gas petrochemical chemical gas compression CNG/LNG or related industries is desired.
• At least 3 years of hands-on experience in process or mechanical basic engineering equipment sizing cost estimation supplier RFQs or techno-commercial package evaluation.
• Demonstrated experience with several of the following: compressors buffer or storage vessels pressure vessels gas dryers/purifiers cooling systems high-pressure gas piping loading systems dispensers/refueling systems or industrial gas utilities.
• Demonstrated experience preparing engineering calculations datasheets RFQs technical quotation evaluations budgetary estimates BOMs/BOQs/MTOs and scope or battery-limit documents.
• Experience working for an EPC contractor engineering consultant or hydrogen technology provider is strongly preferred.

Ohmium is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.