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Energy Jobline ZR

Sr. Process Engineer in El Segundo

Energy Jobline ZR, El Segundo, California, United States, 90245

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Job Description At Arbor, we’re creating technology to power our lives while protecting the planet that sustains them. Our advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel‑flexible, and engineered for the realities of today’s energy demand. At the core is a supercritical CO₂ turbine with integrated carbon capture, designed to bring carbon‑neutral power online quickly at meaningful scale. Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared goal: to build technology worthy of the world we want to live in. While many of us began our journeys looking to the stars, we’re applying that expertise here at home to deliver dependable, emission‑free baseload power and a future of lasting abundance.

If you’re drawn to rigorous work with lasting impact, we’d love to hear from you. Come build what the future will run on.

We are seeking a Senior Process Engineer to develop and own process engineering deliverables for modular process units such as biomass gasification, oxy‑combustion, supercritical CO₂ power, CO₂ purification and liquefaction, and wastewater treatment. As a process engineer at a fast‑paced company developing novel technology, you’ll participate in a wide range of activities from conceptual studies through plant commissioning, startup, and troubleshooting. As projects move into the detailed engineering and construction phases, you will be responsible for managing EPC process engineering efforts to ensure successful project execution.

This Senior role also involves the establishment of internal documentation, standards, and work processes. The ideal candidate has experience across the project lifecycle from conceptual design through detailed design, commissioning, and operation. Hands‑on experience with construction or field troubleshooting is also highly valued.

Responsibilities

Design Basis

Process Flow Diagrams (PFDs)

Heat and Material Balances (HMBs)

Piping and Instrumentation Diagrams (P&IDs)

Line sizing and line lists

Equipment sizing and specification of pressure vessels, heat exchangers, pumps, control valves, etc.

Instrument specifications for common instrumentation like temperature, pressure, flow, and level

Pressure relief load calculations and relief valve sizing

Process hazard analysis (PHA) and HAZOPs

Conceptual and feasibility studies and supporting cost estimates

Control narrative development

Review of detailed piping and equipment design with multidisciplinary in‑house experts

Development of operating procedures

Alarms review

Requirements

Bachelor’s degree in chemical or mechanical engineering

8+ years of process engineering experience

Excellent understanding of chemical engineering principles and broad understanding of downstream discipline requirements (mechanical, civil, electrical, etc.)

Demonstrated ability to coordinate multidisciplinary engineering teams and deliver successful projects

Qualifications

Experience in a startup or agile development environment

Hands‑on field troubleshooting and/or operations experience

Experience in power, gasification, supercritical CO₂, or other high pressure (100+ bar) system design

Professional Engineer (PE) license

Benefits

Stock options

Medical, dental, and vision insurance (Arbor covers 90% for employees)

Basic life insurance fully covered

Health savings account (HSA) with matching

Flexible savings account (FSA)

Unlimited PTO

12+ company holidays, including Earth Day!

401(k)

Commuter benefits

Annual learning and development stipend

And more!

The salary is subject to the applicant's skills, qualifications, and experience.

Arbor is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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