Senior Process Engineering Consultant

What if your next assignment wasn't just advising on a plant – but helping build one that could change an industry

At Without®, we've proven we can turn unrecyclable plastic into premium materials at pilot scale. Now we're building India's first commercial-scale MLP recycling facility – and we need an experienced consultant who can help us translate pilot learnings into commercial reality.

This is not a purely advisory role from a distance. It is about working closely with our team on process design, equipment selection, mechanical practicality, commissioning readiness, troubleshooting, and fail-safe operations. You'll help ensure what we learned at pilot is translated into a plant that can actually run, safely and reliably.

If you've helped take processes from paper to production – and know what it takes to make them work in the real world – we should talk.

What We are looking for

Experience:

10–20 years in process engineering, with strong hands-on exposure to plant design, scale-up, commissioning, and operations – ideally in chemicals, polymers, recycling, or adjacent process industries.

Education:

B.Tech/M.Tech in Chemical Engineering, Mechanical Engineering, Process Engineering, or a related discipline.

Experience with Setting up and maintaining Commercial Scale Plant:

You have led the scale-up of processes from pilot to commercial. You understand that what works at pilot scale behaves differently at industrial scale, and you know how to bridge that gap.

Process Fundamentals:

Strong command over PFDs, P&IDs, mass and energy balances, process narratives, operating envelopes, and control philosophies. You can review, challenge, and strengthen process design decisions. Strong skills to analyse and improve unit economics of the plant.

Equipment & Mechanical Sense:

You understand equipment selection and practical operability across reactors, vessels, heat exchangers, pumps, compressors, filters, and dryers. You can advise on real-world issues such as nozzle placement, internals, agitation, metallurgy, maintenance access, sealing, wear, and thermal behaviour.

Fail-Safe Thinking:

You think through failure modes, process risks, and operating safeguards. You can contribute to HAZOP discussions, relief and venting philosophy, interlocks, alarms, and safe startup/shutdown logic.

Bonus – Simulation & Scale-Up Tools:

Experience with process simulation, debottlenecking studies, or CFD for reactor, heat transfer, or mixing-related decisions would be valuable.

Location:

 The role can be remote. However, periodic in-person visit may be necessary when the need arises, especially once the commissioning begins. The candidate must be willing to travel to the site when critical requirement may arise.

What You'll do

Pilot-to-Commercial Design Support:

Support translation of pilot plant learnings into robust commercial process design. Review and strengthen PFDs, P&IDs, mass and energy balances, process narratives, and control philosophies.

Equipment Selection & Mechanical Review:

Advise on equipment selection for commercial scale and review key mechanical design inputs such as nozzle orientation, internals, agitation, supports, metallurgy, and maintainability.

Commissioning & Troubleshooting Support:

Support commissioning preparation and on-ground troubleshooting during startup and stabilization. Help investigate process upsets, trips, and quality deviations, and recommend practical fixes.

Safety & Fail-Safe Review:

Contribute to process safety reviews including HAZOP, relief philosophy, interlocks, shutdown logic, and hazard mitigation measures. Help convert learnings into robust design and operating safeguards.

Scale-Up & debugging Inputs:

Where relevant, support simulation, utilities planning, process optimization, and debottlenecking for improved plant performance and startup readiness.

Engagement Structure

This will be a consulting engagement and not a full-time employment role.

The consultant would be engaged on a retainer and/or milestone basis, depending on scope, availability, and project stage.

The engagement may include:

• fixed monthly retainer for ongoing advisory and review support,
• defined scope for commissioning/startup support,
• agreed number of site visits or working days per month,
• additional compensation for intensive on-site execution support, if applicable.

The detailed commercial structure, scope of work, timelines, and deliverables will be mutually agreed and documented separately.