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Assistant Tailings Engineer Jobs (NOW HIRING)

Phoenix Tailings

4.6. Engineering Technician

Exeter, NH · On-site

About Phoenix Tailings Phoenix Tailings is a rapidly-growing clean mining and metals production ... Perform preventative maintenance to improve equipment uptime, reliability, and safety * Assist with ...

Phoenix Tailings

7.2. Controls Engineer II

Burlington, MA · On-site

$90K - $117K/yr

About Phoenix Tailings Phoenix Tailings is a rapidly-growing clean mining and metals production ... These tools assist our recruitment team but do not replace human judgment. Final hiring decisions ...

Phoenix Tailings

7.2. Controls Engineer II

Burlington, MA

$90K - $117K/yr

About Phoenix Tailings Phoenix Tailings is a rapidly-growing clean mining and metals production ... These tools assist our recruitment team but do not replace human judgment. Final hiring decisions ...

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Assistant Tailings Engineer information

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$33K

$88.8K

$134.5K

How much do assistant tailings engineer jobs pay per year?

As of Jun 15, 2026, the average yearly pay for assistant tailings engineer in the United States is $88,754.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,500.00 and $104,500.00 per year, depending on experience, location, and employer.

What is the difference between Assistant Tailings Engineer vs Mining Engineer?

AspectAssistant Tailings EngineerMining Engineer
Required CredentialsBachelor's in Mining or Geotechnical Engineering, some certificationsBachelor's in Mining Engineering, Professional Engineer (PE) license often preferred
Work EnvironmentField sites, tailings storage facilities, environmental monitoringMine sites, planning offices, exploration sites
Employer & Industry UsageMining companies, environmental agencies, consulting firmsMining companies, resource extraction industries

The Assistant Tailings Engineer primarily supports the design, monitoring, and management of tailings storage facilities, focusing on environmental safety and compliance. In contrast, a Mining Engineer has a broader role in mine planning, operations, and resource extraction. While both roles require a background in mining engineering, the Assistant Tailings Engineer specializes in tailings management, making it a more focused position within the mining industry.

More about Assistant Tailings Engineer jobs
What cities are hiring for Assistant Tailings Engineer jobs? Cities with the most Assistant Tailings Engineer job openings:
What are the most commonly searched types of Tailings Engineer jobs? The most popular types of Tailings Engineer jobs are:
What states have the most Assistant Tailings Engineer jobs? States with the most job openings for Assistant Tailings Engineer jobs include:
What job categories do people searching Assistant Tailings Engineer jobs look for? The top searched job categories for Assistant Tailings Engineer jobs are:
Assistant Tailings Engineer jobs near you
Infographic showing various Assistant Tailings Engineer job openings in the United States as of June 2026, with employment types broken down into 3% As Needed, 92% Full Time, 1% Part Time, 1% Temporary, and 3% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $88,754 per year, or $42.7 per hour.
2.5. Chemical Engineer I - Hydrometallurgy

2.5. Chemical Engineer I - Hydrometallurgy

Phoenix Tailings

Burlington, MA • On-site

$70K - $100K/yr

Full-time

Medical, Dental, Vision, PTO

Posted 17 days ago

Job description

About Phoenix Tailings 
Phoenix Tailings is a rapidly growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. Our mission is to be the world's first fully clean mining and metals production company, producing the resources needed for the next generation of our economy. 
 
Why Phoenix Tailings 
At Phoenix, we believe nothing great is ever accomplished alone-or without people who push the boundaries of what's possible. You'll be joining a team building the foundational infrastructure for a secure, domestic supply of critical metals. The work you do here will directly influence how rare earths and other strategic materials are produced for decades to come. 
 
Our Values:  
You are only crazy if you are wrong, it's ok to be wrong
Lead with Compassion
Be Resourceful
Listen
Hustle
 
Who We Are Looking For: 
Phoenix Tailings is looking for a Chemical Engineer I with a strong foundation in hydrometallurgy and wet chemistry who is excited to work hands-on in the laboratory and pilot environment to develop and scale next-generation critical metals processes. 
This role is focused on executing experiments, generating high-quality data, and supporting early scale-up rather than primarily modeling or simulation work. You will work closely with senior engineers and scientists to operate laboratory systems, refine process conditions, and translate experimental results into scalable process designs that enable Phoenix Tailings' transition from R&D to commercial deployment. 
 
This pay range reflects the expected compensation for this role and may vary based on experience and qualifications.
 
Salary Range: $70,000-$100,000
Key Responsibilities:
  • Design, execute, and analyze laboratory-scale experiments for hydrometallurgical processes including leaching, separation, and purification of critical and rare earth metals 
  • Perform wet chemistry work in a laboratory setting, including solution preparation, pH control, precipitation, filtration, and material handling 
  • Generate high-quality experimental data to support process development, optimization, and scale-up decisions 
  • Support equipment sizing and selection for reactors, thickeners, filtration systems, and mixer-settlers based on process requirements and experimental results 
  • Assist in translating laboratory and bench-scale results into pilot-scale process concepts and operating parameters 
  • Support development of process flow diagrams (PFDs), mass balances, and operating assumptions informed by experimental data 
  • Collaborate with R&D and pilot teams to troubleshoot process challenges and refine operating conditions 
  • Maintain clear experimental records, technical documentation, and summaries for internal design reviews 
Qualifications:
  • Bachelor's or Master's degree in Chemical Engineering or a related discipline 
  • 1-3 years of experience in laboratory-based process engineering, hydrometallurgy, or chemically intensive systems 
  • Hands-on wet chemistry experience in a laboratory setting, including lab safety practices, aqueous chemistry, acid-base chemistry, filtration, and precipitation 
  • Understanding of core hydrometallurgical unit operations including leaching, solid-liquid separation, solvent extraction, and precipitation 
  • Ability to execute experiments, interpret results, and apply findings to process development and early scale-up efforts 
  • Familiarity with laboratory and pilot-scale chemical equipment and operations 
  • Motivated by building real-world infrastructure that advances clean technology and strengthens domestic critical materials supply chains 
We offer a competitive compensation package that is based on expertise. We also offer the following benefits:
This pay range reflects best estimate for the total cash compensation which includes salary + discretionary bonus for this role. Total package  may vary based on experience and qualifications.
Pay Range: $70,000- $100,000 total cash compensation plus equity
  • Healthcare: 100% Medical, dental, and vision coverage for employee
  • Stock Options: Ownership in a fast-growing venture-backed company. 
  • Time Off: Unlimited PTO. 
  • Learning: Learning and development opportunities to grow your skills and career. 
At Phoenix Tailings, we have an open culture that values learning, and we are looking to grow the team with enthusiastic individuals who share our vision of sustainable mining.  
 
Phoenix Tailings, Inc. is an Equal Opportunity Employer, and we value diversity at all levels. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex (including gender identity, sexual orientation, and pregnancy), national origin, age, disability or genetic information, or any other applicable protected characteristics, and these characteristics will not be a factor for consideration of any work-related decisions (including but not limited to hiring, firing, compensation, and discipline). 
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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