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About CRA

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

The Role

We are looking for a Process Engineering Lead to own process engineering across CRAproduct portfolio. You will own the technical design basis for projects spanning combustion systems, biogas processing, and gas compression producing the foundational engineering documents that the rest of the team designs and builds from.

Responsibilities

Across All Product Lines

Develop design basis documents, mass and energy balances, process flow diagrams, and PIDs 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 CRAinternal HAZOP or providing process input to the client/EPCHAZOP.
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 (Flares, Thermal Oxidisers, VCUs, BMS)

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 Processing Upgrading

Biogas characterisation and variability assessment (CH\u2084 / CO\u2082 / H\u2082S / moisture).

Gas treatment technology selection and sizing: H\u2082S removal, dehydration, CO\u2082 removal (amine, membrane, PSA).

CBG plant process design: compression stages, inter-stage cooling, quality compliance (IS 16087 or applicable standards).

Gas Compression Processing Skids

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
Must Have

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, PIDs, 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.

Preferred

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.

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Disclaimer :This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

Process Engineering Lead

Job Description

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