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Associate Engineer

Capture6

San Francisco, CAFull-time$60–150K/yrPosted todayStill listed today

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At a glance

Compensation
$60–150K/yr
Location
San Francisco, CA
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Job overview

Capture6 develops water treatment and brine management solutions with climate benefits. The Associate Engineer supports the design and build of process equipment and instrumentation for water treatment, carbon capture, sequestration, experimentation, pilot testing, and full-scale applications. The role develops scalable processes, models and optimizes designs, conducts experiments, and communicates technical outcomes while collaborating with management and cross-functional teams.

Skills & qualifications

RequiredNice to have

Skills

Chemical Engineering, nice to haveWater Treatment, nice to haveProcess Design, nice to havePython (Programming Language), nice to haveMATLAB, nice to haveProcess Simulation, nice to haveControl Systems, nice to haveElectrolysis, nice to haveElectrodialysis, nice to haveReactor Design, nice to haveGas-Liquid Absorption, nice to haveLaboratory Work, nice to haveTechnical Communication, nice to haveAmbiguity Navigation, nice to haveCollaboration, nice to haveSelf-Motivation, nice to haveFlexibility, nice to haveClimate Advocacy, nice to have

Qualifications

1+ Years Experience, nice to haveUS Work Authorization, required

Full job description

At Capture6, we are developing next generation water treatment and brine management solutions and creating environmental benefits to accelerate the transition to a decarbonized global economy. Our projects create dual benefits to climate and water sectors. As we continue to grow, we are seeking a talented and naturally curious Chemical engineer to join our team. You will support the design and build of process equipment and instrumentation for water treatment, carbon capture, sequestration, and innovations that generate additional co-benefits, for experimentation, pilot testing, and at full scale. The ideal candidate is passionate about driving optimal outcomes and delivering insights that inform the overall business strategy.

What You Will Do

  • Research, design, and develop production processes that can scale from pilot through megaton system design.
  • Develop and implement PFDs, P&IDs, SOPs, and control narratives for processes.
  • Create M&EBs and use process modeling tools like Aspen Plus to size and optimize process designs across various applications.
  • Produce rough quick models for preliminary estimation and prioritization, and detailed reliable models for project development.
  • Independently design experiments (DoE) to test and optimize reactor performance using a mix of hands-on and software tools.
  • Pursue and construct grant funding and patent applications through research on novel and relevant science topics
  • Develop engineering assessments for partnership projects, identifying risks and proposing countermeasures.
  • Communicate and report key technical outcomes/learnings to technical and non-technical teams.
  • Collaborate with management and cross-functional teams for prioritizing research needs.

What You Will Bring

  • We’re looking for engineers with 1-5 years of experience in a commercial or research environment.
  • Prior experience with water treatment, electrolysis and/or electrodialysis, reactor design, and gas-liquid absorption is preferred.
  • Programming experience (Python, MATLAB).
  • Hands-on experience in a laboratory setting.
  • Process simulation experience using software such as Aspen Plus, Aspen HYSYS, Aveva, WAVE, Winflows or similar.
  • Hands-on experience with developing control and sensing systems in industrial hardware and facilities.
  • Ability to communicate technical subjects to a non-technical audience and business subjects to a technical audience
  • Ability to navigate ambiguity in a fast-paced environment with shifting priorities.
  • Proven track record of collaborative work across various teams, stakeholders, and external partners.
  • Self-motivated and flexible with communicating with colleagues in various time zones.
  • Passionate about tackling the climate crisis.
  • Legally authorized to work in the United States.

We are aware this job description may not capture all the dimensions we are seeking in the right candidate. You may also bring valuable skills and knowledge we haven't thought of. If you think you’re a great fit for this role, please apply and tell us why in your cover letter. We look forward to hearing from you. Climate change disproportionately impacts underrepresented communities, and we believe a diverse and inclusive team is needed to meet this major global crisis head on. We highly encourage members of traditionally underrepresented communities to apply. Capture6 is committed to equal employment opportunity regardless of race, age, color, ancestry, national origin, religion, marital domestic partner status, sexual orientation, gender identity, disability status, or veteran status. The salary range presented for this full-time role is $60,000 – $150,000 + equity + benefits. Our salary ranges are determined by role, years of experience, and location. The range represents the minimum and maximum potential salaries for new hires in this particular position. Within this range, individual pay is determined by several factors, including job-related skills, experience, and education or training. Please note that the compensation details for this role reflect the cash compensation only and do not include equity or other benefits.

How this job compares

Set against the 726 open Process Engineering jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$60–150K/yr
  • California median$125–194K/yr43 salary ranges
  • US median$108–152K/yr304 salary ranges

This range's midpoint, $105K, is 36% below the California median midpoint ($165K) — in the lowest quarter of Process Engineering salary ranges in California.

Openings
Olive Jobs lists 68 open Process Engineering jobs in California and 726 across the US. 2% of them nationwide are listed as remote or flexible.
Hiring the most in California
Experience
This posting asks for at least 1 year of experience — less than three in four Process Engineering postings that state a minimum ask for (median 5 years, across 427 postings).
Education
355 of the 726 open Process Engineering jobs (49%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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