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Careers

We are looking for mission-driven, grounded folks to add to our equation. 

Let's Reimagine Waste Together

Senior Process Engineering Manager

What if your next plant wasn’t just built – but built to 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 someone who can take us from pilot learnings to commercial reality.

This isn’t drawing P&IDs in isolation. It’s owning the entire journey – equipment selection, mechanical practicality, commissioning, troubleshooting, and fail-safe operations. You’ll translate what we’ve learned at pilot into a plant that actually runs.

If you’ve taken processes from paper to production – and stayed to fix what broke – we should talk.

The Details

  • Experience: 4-6 years in process engineering, with hands-on exposure to plant design, commissioning, and operations – ideally in chemicals, polymers, or recycling.
  • Education: B.Tech/M.Tech in Chemical Engineering, Mechanical Engineering or Process Engineering.
  • Pilot-to-Commercial Experience: You’ve scaled processes from pilot to commercial. You understand that what works at 100kg behaves differently at 10 tonnes – and you know how to bridge that gap.
  • Process Fundamentals: Deep fluency in PFDs, P&IDs, mass/energy balances, process narratives, and control philosophies. You don’t just draw diagrams – you defend every line.
  • Equipment & Mechanical Sense: You select the right equipment (reactors, vessels, heat exchangers, pumps, compressors, filters, dryers) and understand how it actually behaves – clearances, wear, vibration, sealing, thermal expansion, maintenance access. You can guide mechanical design inputs: nozzle orientation, internals, agitation, baffles, metallurgy selection, and corrosion allowance.
  • Troubleshooting Mindset: You don’t hand off P&IDs and disappear. You stay through commissioning and operations, lead root cause investigations for trips and failures, and build practical fixes – instrument changes, control modifications, interlocks, equipment tweaks.
  • Fail-Safe Thinking: You predict failure scenarios: “what fails, what happens next, what protects us?” You drive HAZOP, relief/venting philosophy, ESD/interlocks, and alarms rationalisation. Learnings become engineering safeguards, not just reports.
  • EPC & Vendor Management: You evaluate and select EPC partners and critical vendors. You hold them accountable on datasheets, sizing, GA drawings, and FAT/SAT readiness – without micromanaging. You ensure design aligns with pilot intent and commercial reliability.
  • Bonus – Simulation & CFD: Experience with process simulation (steady-state/dynamic) for scale-up, equipment sizing, and debottlenecking. Working knowledge of CFD for reactor/mixing performance, dead zones, and distribution risks.
  • Startup Mentality: Comfortable with ambiguity, resource constraints, and building from scratch.
  • Purpose-Driven: You want to build something that matters – not just another plant.
  • Location: Willing to spend considerable time in Pune, India – this is not a remote role.
  • Pilot-to-Commercial Design Ownership: Translate pilot plant PFDs/P&IDs and operating learnings into robust commercial process design. Lead development and validation of PFDs, P&IDs, mass and energy balances, process narratives, and control philosophies.
  • Equipment Selection & Mechanical Guidance: Select the right equipment for commercial scale. Review and guide mechanical design inputs – nozzle orientation, man-ways, internals, agitation/mixing, supports, lining, and metallurgy.
  • P&ID Leadership & Troubleshooting: Own P&IDs from design through commissioning and operations. Lead root cause investigations for trips, quality deviations, and process upsets. Build practical fixes that stick.
  • Safety & Fail-Safe Design: Drive safety studies (HAZOP, LOPA/SIL where applicable), relief/venting philosophy, ESD/interlocks, and hazardous area considerations. Convert learnings into engineering safeguards.
  • EPC & Vendor Technical Authority: Evaluate and select EPC partners and critical vendors. Review deliverables, hold vendors accountable, and ensure commercial reliability without losing pilot intent.
  • Simulation Support (Bonus): Use process simulation for scale-up validation, utilities planning, control strategy, and debottlenecking. Apply CFD where relevant for reactor/mixing and heat-transfer performance.

  • An annual Cost-to-Company (CTC) between INR 10-20 Lakhs, based on experience and market standards. 

  • Stock Options (ESOPS) in the legal entity that vests over an agreed-to tenure.

  • A 3-month mutual incubation period. Both you and we will have the option to end the agreement after three months if it isn’t working out.

  • We provide benefits such as health insurance, flexible work hours (including unmonitored vacation) and Provident Fund contributions.

  • We believe in keeping the organisational structure as flat as possible, where nobody really reports to anybody, but instead, we try and hold each other accountable for outcomes and processes.

Working at

Without® is not just another social enterprise or non-profit or start-up. We are an amalgamation of all that and a lot more.

Our why, our values, our guiding principles and our mission are absolute pillars in our journey to make deep, meaningful impact. We have just launched a new brand and our first product, and are trying to build on that.

Right now, we are a small but passionate team, so our work culture is evolving as we speak. We don’t believe in hierarchy and are attempting to build an environment of self-management.

We believe the following traits are currently fuelling our evolution:

pACE

We know we are moving quickly, but it still feels too slow. We want to move faster. We want to compress many years of research into one. But at the same time, we don’t want to break things along the way. Help us find our pace.

OUTCOME

We are outcome-focused. By that we mean it doesn’t really matter how many hours you work, it’s what you do with those hours that matters. Work hours are flexible. Our outcomes, not as much.

explicit

We are super transparent. There’s no point in sweeping conflicts under a rug. We don’t have much to hide from each other and are consistently evaluating our work, our feelings and our differences. We are our biggest critics.

grounded

No task is too small or too big for any of us to do. At the same time, we play to our strengths, optimising for the greater goal we are seeking to achieve, all the while keeping our minds open to diverse perspectives.

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