# Principal Process Engineer at Ohr

Ohr is hiring a Principal Process Engineer. It pays $160k-$220k a year and Level rates it Little AI ●○○○; you can [apply on Ohr](https://jobsbylevel.com/go/c0928bda-3b60-4b40-84f0-bc2c90ea7347?utm_medium=ai-agent).

AI Level 1, AI centrality 11 out of 100. Colorado.

## Details

- Company: [Ohr](https://jobsbylevel.com/companies/ohr)
- AI level: AI Level 1 (score 11 out of 100)
- Location: Colorado
- Salary: $160k-$220k
- Posted: November 3, 2026
- Apply: https://jobsbylevel.com/go/c0928bda-3b60-4b40-84f0-bc2c90ea7347?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=principal-process-engineer-at-ohr-bcb364

## Description

The future must be created. 01 THE ROLE Chemistry is the invisible layer under every critical system, and the supply chain behind it has become a weapon. Ohr makes the molecules that matter most, from the atom up: energetics, propellants, rare-earth extractants and the ignition chemicals already in production today. Ohr is building the pilot facilities that turn our chemistry into production, and this role owns the process engineering that gets them built. As Principal Process Engineer you are accountable for the balances, the equipment, the drawings, and the engineering packages that EPC contractors build from — the technical authority that vendors and contractors answer to, and still the person running the calculation yourself. THE KIND OF PEOPLE THIS WORK DEMANDS Our mission demands more than great science. It requires a particular kind of team — visionary builders, hustlers, scientists, operators. Together, we carry both the technical depth to make the chemistry work and the commercial instinct to make the business thrive. People are our engine. Collaboration is our multiplier. 02 WHAT YOU'LL DESIGN AND BUILD Own process engineering for Ohr's pilot facilities end to end — heat and material balances, equipment sizing and specification, PFDs, P&IDs, and the engineering packages that get built Serve as Responsible Engineer across concurrent pilot projects: set the technical position, hold the schedule, own the budget Lead technical interactions with EPC contractors, equipment vendors, and outside consultants, responding to their needs quickly and clearly Translate R&D chemistry and biocatalysis into scalable unit operations, surfacing scale-up risk during early engineering Lead HAZOP, PHA, and risk mitigation for facility design and operations Establish the design standards, calculation methods, design memos, and review gates that a growing engineering team will inherit Hire and mentor a small process engineering team while staying hands-on yourself Support projects through feasibility, permitting, FEED, procurement, construction, commissioning, and startup 03 WHAT YOU BRING WITH YOU You're the engineer who has watched enough designs get built to know which assumptions break in the field. You'd rather be the one who owns the material balance than the one who reviews it, and you're at the point in your career where you want a facility with your judgment in it rather than a larger org chart. You likely have: A four-year degree in chemical engineering 15+ years of process engineering experience (or 10–12 years with a Ph.D. or Masters, respectively), with a track record of designs that have been built and operated Breadth across process design and operations, with real depth in at least one of: bioprocess and fermentation scale-up, chemical synthesis scale up, or chemical catalysis Experience specifying reactors, vessels, tanks, heat exchangers, pumps, filtration, and separations Strong command of process simulation — Aspen Plus, Aspen HYSYS, ChemCAD, UniSim, ProMax, HTRI, or equivalent Working knowledge of process instrumentation, control valves, and control loops Process Safety Management and hazardous materials handling experience The judgment and presence to be the domain expert in a room of vendors, contractors, and regulators Strong plus Pilot plant commissioning and startup experience Experience in ATF-, DoD-, or DDESB-regulated manufacturing environments Professional Engineer (PE) license Experience with AI-enabled engineering tools, process modeling, and digital twins WHAT SUCCESS LOOKS LIKE AFTER 3 MONTHS You've connected with and are closely engaged with our research and development team, proactively translating data collected in the lab into pilot facility design You're leading the basic engineering package and EPC engagement for one of our pilot facilities, and its scale-up risks are documented rather than discovered AFTER 6–12 MONTHS You're viewed as an engineering leader across our product verticals in critical

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/principal-process-engineer-at-ohr-bcb364

Source: https://jobsbylevel.com/jobs/principal-process-engineer-at-ohr-bcb364

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