Process Engineering Lead

Combustion Research Associates; India; On-site; INR 2,500,000 - 4,500,000; Full time

Job summary

Combustion Research Associates seeks a Process Engineering Lead to own process engineering across its product portfolio, including combustion systems, biogas processing and gas compression. You will produce the foundational engineering documents that guide the design and construction teams.

You will lead technical work, review outputs for consistency with the design basis, and collaborate with EPC partners, traveling for site visits and commissioning duties.

Qualifications

• Degree in Chemical Engineering.
• n/a

Responsibilities

• Develop design basis documents, mass and energy balances, P&IDs for projects.

Skills

Process engineering

P&ID design

Stoichiometry

Combustion thermodynamics

HAZOP

SIL/LOPA

Aspen HYSYS

ProMax

Education

Degree in Chemical Engineering

Tools

Aspen HYSYS

ProMax

P&ID drafting

Job description

CRA is a purpose-engineered gas systems companyspecialising in combustion, emissions control, biogas processing, and gascompression. We design and manufacture flare systems, thermal oxidisers, biogascompression and upgrading plants, gas processing skids, and burner managementsystems for clients across India and 25+ countries.

The Role

We are looking for a Process Engineering Lead toown process engineering across CRA’s product portfolio. You will own thetechnical design basis for projects spanning combustion systems, biogasprocessing, and gas compression — producing the foundational engineeringdocuments that the rest of the team designs and builds from.

Responsibilities

Across All Product Lines

• Develop design basis documents, mass and energybalances, 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 applicablestandards.
  
• 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, instrumentselection, and safety system requirements (SIL targets, SafetyRequirementsSpecifications).
  
• Participate in HAZOPs — either leading CRA’s internal HAZOP or providingprocess input to the client/EPC’s HAZOP.
  
• Review mechanical, electrical, and instrumentation outputs for consistency withthe design basis.
  
• Support proposals with preliminary sizing, equipment selection, standardsreferences, and technical content.
  
• Travel to project sites (domestic and international) for commissioning support,client meetings, and site surveys.
  

Combustion (Flares, Thermal Oxidisers, VCUs,BMS)

• Combustion chamber sizing: residence time, heatintensity, temperature profile.
  
• Flare radiation calculations (API 521) and stack height determination.
  
• Burner selection and sizing: fuel flexibility, turndown ratio, flame stability.
  
• Refractory specification and shell temperature analysis.
  
• BMS safety function definition and SIL targetdeclaration.
  

Biogas Processing & Upgrading

• Biogas characterisation and variabilityassessment (CH₄/CO₂/H₂S/moisture).
  
• Gas treatment technology selection and sizing: H₂S removal, dehydration, CO₂removal (amine, membrane, PSA).
  
• Driver selection: electric motor vs. gas engine, power calculations, altitudederating.
  
• Process datasheets for bought-out equipment (compressors, heat exchangers,vessels).
  

Requirements

Must Have

• Degree in Chemical Engineering or MechanicalEngineering.
  
• 10+ years of process engineering experience in equipment design, EPC, or atechnology company — producing design basis documents, P&IDs, and processcalculations 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 codesfor pressure equipment.
  
• Ability to produce engineering documents that other disciplines design from.
  

Preferred

• Experience with biogas or CBG plant processdesign.
  
• Exposure to functional safety concepts: IEC 61511, SIL assessment, LOPA.
  
• Process simulation capability (Aspen HYSYS, ProMax, or similar).
  
• Experience in an equipment OEM environment.
  
• Lean, ownership-driven culture — high autonomy, direct access to leadership,and visible impact.
  
• Build and lead the process engineering function as it scales.