Unlimited
Energy & UtilitiesDirect Ashby career site

Senior Process Engineer

Location
San Francisco, CA · On-site
Job type
Full-time
Level
Senior
Listed
30 days ago

Skills & highlights for this role

  • PE license
  • heat and material balances
  • P&ID development
  • equipment sizing
  • emissions control

Also useful

  • simulation software
  • AI coding agent tools

Mission

We are automating construction end to end to usher in a new era of abundance and beauty in the physical world in the coming decades. Over the past fifty years, the West’s ability to design and build large scale infrastructure has atrophied, and the entire industry has become less productive. With decaying infrastructure, power shortages, and an aging workforce, the only way through is to hyper-scale development with technology at a rate never before seen.

Our team believes that this is the most important work of our lives, and there’s no more significant place to spend our time than on solving these problems. We believe in the sacrifices that we must make to achieve our mission and build a world of abundance. We believe the future can be amazing, but only if we work gut-wrenchingly hard to make it so. Our work is bigger than all of us, and our obsession with manifesting is what drives us. Roughly 50% of our team are former founders, and we strive for technical excellence, but quell our egos to ensure that the best ideas always win.

We acknowledge the long and arduous path ahead to achieve our ambitions; that many of the most difficult challenges have yet to even be revealed to us; that the chance of failure is not only possible, but likely. Most of all, we believe that there is no other option: we will either revolutionize how humanity builds or die trying.

The role

We're hiring a Senior Process Engineer to bring deep, practicing process engineering expertise into our product.

You'll pair years of hands-on plant design experience (heat and material balances, PFDs and P&IDs, emissions control, equipment sizing, etc) with product development, turning how an excellent process engineer thinks, checks, and makes judgment calls into capabilities within our automated design engine product, where we leverage AI to automate every step of the engineering design process to produce end construction design deliverables for large scale capital projects such as natural gas power generation and beyond.

This role is in-person in San Francisco, CA.

What we're looking for

  • Owned the process design of gas power, industrial plants, chemical production, polymer synthesis, or similar, end to end
  • T-shaped technical excellence: broad understanding of how process connects to adjacent disciplines and the implications of trade-offs across them, while also having deep expertise in 1-2 areas
  • Evidence of strong first principles thinking: someone who has challenged "this is how we've always done it" syndrome
  • Excitement to work in a fast-paced, high-performance environment, and embrace extreme ownership
  • The ability to prioritize impact by ruthlessly finding the bottlenecks and solving the most important problems
  • Hands-on engineers who can speak to the excruciating minutia and details of their work (the calc, the edge case, the reviewer comment that changed the design), and are excited to execute instead of manage/organize others' work
  • Mission alignment and desire to build a future of abundance

Experience: Senior. Significant hands-on process design experience at an engineering firm or owner; PE preferred.

Bonus

  • Experience with utility scale natural gas power generation plant design
  • Experience building your own simulation, calculation, or analysis software tools or other applications. A large part of this role is turning your engineering knowledge into scalable software; even if you’ve barely written software before, you’ll leverage recent advancements in AI coding agents to assist you in building these tools
  • Experience with AI coding agent tools (Codex, Claude Code, etc) for work or personal uses
Read the original posting

From Unlimited's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Senior Process Engineer role at Unlimited, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Common questions

Where is the Senior Process Engineer job at Unlimited located?

This Senior Process Engineer position at Unlimited is located in San Francisco, CA (On-site). Always check Unlimited's application page for specific state eligibility or relocation policies.

What qualifications are required for Senior Process Engineer at Unlimited?

For the Senior Process Engineer role, Unlimited highlights experience with heat and material balances, P&ID development, equipment sizing, emissions control. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Senior Process Engineer position at Unlimited?

This listing links directly to Unlimited's Ashby application page. You can apply directly on Unlimited's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.