Senior Process Engineer

Ohr•Lafayette, CO

5d•$140,000 - $180,000•Onsite

About The Position

Ohr makes critical molecules, including energetics, propellants, rare-earth extractants, and ignition chemicals. The Senior Process Engineer takes technology from scale-up through delivered engineering packages, including balances, equipment, drawings, and project plans. The role serves as Responsible Engineer on multiple projects and provides engineering guidance to R&D on scale-up questions. This is an onsite role based in Lafayette, Colorado, in the Denver–Boulder Metro Area, with travel up to 15% to pilot sites, laboratories, and vendor facilities. Relocation assistance is provided. The annual base salary range is $140,000–$180,000, commensurate with experience, plus equity.

Requirements

Four-year engineering degree in chemical, mechanical, bioprocess, or a related discipline.
10+ years of technical experience in process engineering.
Broad engineering and operations knowledge across internal projects and external partner work.
Experience specifying equipment such as reactors, tanks, heat exchangers, pumps, and vessels.
Strong experience with process simulation software such as Aspen Plus, Aspen HYSYS, ChemCAD, PRO II, UniSim, ProMax, or HTRI.
Working knowledge of process instrumentation, control valves, and control loops.
Ability to gather data, set priorities, and meet deadlines without close management.
Excellent written and verbal communication skills, including communication with non-technical third parties.

Nice To Haves

Pilot plant design, commissioning, or startup experience.
Experience in bioprocess, fermentation, and separation equipment design and operation.
Process Safety Management experience in a regulated process industry.
Experience mentoring junior process engineers.

Responsibilities

Develop heat and material balances, size and specify equipment, and produce PFDs and P&IDs for new and modified processes.
Own delivery of engineering packages on schedule, within budget, and with technically defensible content.
Serve as Responsible Engineer on multiple concurrent projects.
Partner with R&D early to identify and retire scale-up risks before they reach a drawing.
Lead technical interactions with equipment vendors, EPC contractors, and consultants, responding promptly to EPC needs with sound technical positions.
Contribute to HAZOPs and risk identification, and validate calculations, balances, equipment sizing, and specifications prepared by other engineers.
Support pilot and commercial sites through feasibility, permitting, FEED, EPC scope, commissioning, and operations.
Improve team infrastructure, including design memos, sizing tools, work instructions, and quality checklists.
Apply process simulation and, where appropriate, AI-assisted modeling and digital twin work.
Mentor junior process engineers, as applicable to the role.