Senior Process Engineer

Optimized Process Designs, LLC (OPD), a Koch company, is seeking a Senior Process Engineer to join our team and take a lead role in delivering midstream oil and gas projects. In this position, you will apply your technical expertise across all project phases, from initial scope development through detailed design and construction. You will lead process engineering efforts, mentor junior engineers, and take ownership of critical process deliverables including simulations, design calculations, and equipment selection.

The ideal candidate has hands‑on experience with process simulation software, a strong background in refinery or gas processing facility design, and a passion for mentoring and collaborative problem‑solving. If you have a foundation in process engineering with a focus on midstream or downstream sectors, we invite you to contribute to complex, high‑impact projects that drive operational excellence.

This role will sit on‑site Monday‑Friday at OPD's headquarters in Katy, TX. This role is not open to Visa sponsorship.

At OPD, our people are our greatest asset. Through our people, we have developed a strong, contribution‑motivated team with a reputation for honesty, integrity, and the ability to successfully execute projects. We have a key advantage in being able to supply in‑house construction services as well as in‑house engineering/procurement. This enables clients to have a “one stop shop” for the overall project, providing increased efficiency and avoiding potential interface problems.

OPD's industry experience, flexibility, and personal attention have made us a preferred partner to our customers and our tight‑knit, highly productive team atmosphere makes OPD a great place to work.

• Provide technical expertise to projects in all phases of work from initial project scope development through construction.
• Lead process engineering on multiple projects with assistance from other Process Engineers.
• Mentor junior engineers to help accelerate their technical advancement.
• Independently evaluate and design facilities for midstream and downstream projects.
• Perform basic & detailed design engineering activities for the assigned project in refineries and gas processing facilities.
• Be the technical owner on all process deliverables such as performing process simulations, design calculations, sizing & selection of equipment, and related tasks.
• Review client documents, specifications, datasheets, verification of FEED design & calculations, PFD, P&IDs, equipment datasheets, heat material balance, process line sizing calculations, hydraulic calculations, instrument datasheets including control valves and relief valves, and other process design‑related tasks.
• Evaluate vendor quotes and develop equipment bid tables.
• Assist in the development of I/O lists, line lists, cause & effect, control philosophies, shutdown philosophies, and providing necessary engineering inputs to other disciplines.
• Assist in developing start‑up and operating manuals; attend and assist in Process Hazard Analysis meetings for projects, and attend start‑ups for plants when requested.

• Process engineering experience in midstream or downstream oil and gas industries.
• Working knowledge of process simulator software (e.g., HYSYS, Unisim, etc.).
• Experience preparing equipment datasheets for heat exchangers, pumps, vessels, compressors, fired heaters, electric heaters, and distillation columns.
• Experience in sizing PSVs and control valves.

• Bachelor's degree or higher in Chemical Engineering.
• Professional Engineer license.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location.

If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

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