Process Engineering Lead

• Develop design basis documents mass and energy balances process flow diagrams and P&IDs for all projects.
  
• Write control philosophies and define operating sequences interlock logic trip conditions and safety requirements with reference to applicable standards.
  
• Perform combustion and process calculations: stoichiometry air/fuel ratio adiabatic flame temperature flue gas composition heat release pressure drop residence time.
  
• Guide the instrumentation and controls team on BMS architecture instrument selection and safety system requirements (SIL targets SafetyRequirements Specifications).
  
• Participate in HAZOPs either leading CRAs internal HAZOP or providing process input to the client/EPCs HAZOP.
  
• Review mechanical electrical and instrumentation outputs for consistency with the design basis.
  
• Support proposals with preliminary sizing equipment selection standards references and technical content.
  
• Travel to project sites (domestic and international) for commissioning support client meetings and site surveys.
  

• Combustion chamber sizing: residence time heat intensity temperature profile.
  
• Flare radiation calculations (API 521) and stack height determination.
  
• Burner selection and sizing: fuel flexibility turndown ratio flame stability.
  
• Emission calculations: NOx CO VOC destruction efficiency.
  
• Refractory specification and shell temperature analysis.
  
• BMS safety function definition and SIL target declaration.
  

• Biogas characterisation and variability assessment (CH₄/CO₂/H₂S/moisture).
  
• Gas treatment technology selection and sizing: H₂S removal dehydration CO₂ removal (amine membrane PSA).
  
• CBG plant process design: compression stages inter-stage cooling quality compliance (IS 16087 or applicable standards).
  

• Compressor sizing: flow pressure ratio gas properties stage count intercooling.
  
• Driver selection: electric motor vs. gas engine power calculations altitude derating.
  
• Skid process design: scrubbers separators coolers control valves relief devices.
  
• Process datasheets for bought-out equipment (compressors heat exchangers vessels).
  

Requirements

• Degree in Chemical Engineering or Mechanical Engineering.
  
• 10 years of process engineering experience in equipment design EPC or a technology company producing design basis documents P&IDs and process calculations as primary deliverables.
  
• Working knowledge of combustion thermodynamics: stoichiometry air/fuel ratio flame temperature flue gas composition excess air.
  
• Working knowledge of gas processing fundamentals: compression thermodynamics gas treatment technologies phase behaviour.
  
• Familiarity with relevant standards: API 521 NFPA 86 or EN 746 ASME/IS codes for pressure equipment.
  
• Ability to produce engineering documents that other disciplines design from.
  

• Experience with biogas or CBG plant process design.
  
• HAZOP participation experience.
  
• Exposure to functional safety concepts: IEC 61511 SIL assessment LOPA.
  
• Process simulation capability (Aspen HYSYS ProMax or similar).
  
• Experience in an equipment OEM environment.
  

Benefits

• Lean ownership-driven culture high autonomy direct access to leadership and visible impact.
  
• Build and lead the process engineering function as it scales.