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4.3. Principal Sustainability Engineer

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 that nothing great is ever accomplished alone or without the passion of people who push and motivate one another. If you are someone who shares our relentless pursuit of a better future, passion for innovation, and are excited about working with some of the top innovators in the world, then this is the place for you.

 

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: 

 

Who We Are Looking For:

We are seeking a Principal Sustainability Engineer to drive our sustainability strategy across our rare earth metals refining, recycling, and materials development operations. In this role, you will lead cross-functional initiatives that integrate carbon capture, lifecycle analysis (LCA), and emissions reduction into our core technology platforms. You'll also bring a strategic investment lens, evaluating early-stage technologies through techno-economic analysis and guiding their integration into our process roadmap.


This position is ideal for an experienced technical leader with deep knowledge of carbon management, recycling streams, and sustainable materials. You’ll work closely with R&D, process engineering, and external technology partners to ensure our systems are built for long-term environmental and economic viability.


Key Responsibilities
  • ·       Lead the integration of carbon capture, utilization, and storage strategies into Phoenix Tailings' production systems
  • ·       Conduct lifecycle assessments (LCAs) and emissions inventories to guide decision-making and regulatory compliance
  • ·       Develop techno-economic assessments for emerging technologies and support strategic decisions for commercialization
  • ·       Collaborate with R&D and engineering teams to embed sustainability into process and product design
  • ·       Evaluate early-stage technologies for strategic fit, technical feasibility, and environmental impact
  • ·       Guide sustainability reporting and disclosures for customers, investors, and regulatory bodies
  • ·       Build partnerships across industry and government to advance Phoenix Tailings’ decarbonization objectives


Qualifications:
  • ·       Master’s degree in Environmental Engineering, Chemical Engineering, or related field (Ph.D. a plus)
  • ·       8+ years of experience in sustainability, decarbonization, or clean technology engineering ideally in the metals or chemical processing industry
  • ·       Strong expertise in CCUS, recycling waste streams, hydrogen, sustainable materials, or circular economy solutions
  • ·       Deep understanding of LCA tools (e.g., SimaPro, GREET) and lifecycle emissions modeling
  • ·       Proven ability to lead techno-economic and technology readiness assessments for early-stage innovation
  • ·       Familiarity with U.S. and international climate tech policy and regulatory frameworks
  • ·       Excellent communication and cross-functional leadership skills


We offer a competitive compensation package that is based on expertise. We also offer the following benefits:
  • Healthcare, we care about you and your family: 100% Medical, dental, and vision coverage 
  • Stock: Ownership in a fast-growing venture-backed company. 
  • Family Focus: Parental leave and flexibility for families. 
  • Time Off: Flexible vacation policy to encourage people to get out and see the world. 
  • Team Fun: Regularly scheduled events, and celebrations. 
  • Learning: Learning and development Opportunities to grow your skills and career. 
  • Great team: Working with fun, hard-working, kind people committed to making a difference! 
  • Flexible culture: We are results-focused. We don’t work at the office every day. 


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). 

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What You Should Know About 4.3. Principal Sustainability Engineer, Phoenix Tailings

At Phoenix Tailings, located in Burlington, MA, we're on a mission to revolutionize the clean mining and metals production industry. As a Principal Sustainability Engineer, you will be a pivotal player in driving our sustainability strategy for rare earth metals refining, recycling, and materials development. This is not just any job; it’s an opportunity to work in a rapidly growing startup that is passionate about being the world's first fully clean mining and metals production company. You’ll lead initiatives that incorporate innovative methods like carbon capture and lifecycle analysis into our core operations. Your standout expertise in carbon management and recycling will guide our technical teams in embedding sustainability into the design of our processes and products. Here, at Phoenix, we value creativity, compassion, and resourcefulness, and we believe that teamwork and a shared vision can achieve extraordinary results. Each day will present new challenges and opportunities to collaborate closely with R&D and engineering teams, all while pushing the envelope of what's possible in sustainable materials technology. We’re looking for someone with at least 8 years of experience in sustainability or clean technology engineering, preferably with a background in the metals or chemical processing industry. If you’re excited about being part of a dedicated team that's focused on making a real impact on the environment, this is the place to be. Join us in our relentless pursuit of a sustainable future!

Frequently Asked Questions (FAQs) for 4.3. Principal Sustainability Engineer Role at Phoenix Tailings
What are the main responsibilities of the Principal Sustainability Engineer at Phoenix Tailings?

The Principal Sustainability Engineer at Phoenix Tailings will lead the integration of carbon capture, utilization, and storage strategies into production systems, conduct lifecycle assessments (LCAs), and develop techno-economic evaluations for emerging technologies. This role is vital for guiding decision-making and ensuring regulatory compliance, as well as for collaborating with R&D and engineering teams to embed sustainability into process and product design.

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What qualifications are needed for the Principal Sustainability Engineer position at Phoenix Tailings?

To be considered for the Principal Sustainability Engineer role at Phoenix Tailings, candidates should possess a Master's degree in Environmental Engineering, Chemical Engineering, or a related field, coupled with at least 8 years of experience in sustainability or clean technology engineering, specifically in the metals or chemical processing industry. A strong expertise in carbon capture technologies, lifecycle assessment tools, and regulatory frameworks is essential.

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How does Phoenix Tailings support a career in sustainability through the Principal Sustainability Engineer role?

Phoenix Tailings is committed to fostering a supportive environment for its employees. As a Principal Sustainability Engineer, you will have access to learning and development opportunities to hone your skills further. The company encourages flexible work policies to balance life and work, along with competitive compensation and a focus on teamwork, making it a great opportunity to advance your career in sustainability.

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What is Phoenix Tailings' approach to sustainability in its operations, especially for the Principal Sustainability Engineer?

Phoenix Tailings adopts a comprehensive sustainability strategy that includes carbon capture, lifecycle analysis, and emissions reduction. The Principal Sustainability Engineer will spearhead initiatives to assess and implement these strategies across our production processes. This role is crucial for our goal of achieving long-term environmental and economic viability in our operations while addressing the challenges of sustainability in the mining sector.

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What makes Phoenix Tailings an attractive employer for a Principal Sustainability Engineer?

Phoenix Tailings offers a unique and dynamic work environment aimed at creating an impactful future in clean mining. With a focus on collaboration, creativity, and shared values, we ensure that our employees feel valued and engaged. The Principal Sustainability Engineer role at Phoenix Tailings comes with competitive compensation benefits, a culture that promotes flexibility, and a team committed to making a difference, all of which contribute to making us a desirable place to work.

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Common Interview Questions for 4.3. Principal Sustainability Engineer
What experience do you have with carbon capture and sustainable materials?

When answering this question, highlight specific projects where you have implemented carbon capture technologies or have worked with sustainable materials. Discuss your role, the challenges faced, and the results achieved, showcasing your technical expertise and problem-solving skills in sustainability.

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Can you explain lifecycle assessment (LCA) and its importance in sustainability engineering?

In your response, define lifecycle assessment and describe its purpose in evaluating the environmental impacts of a product throughout its lifecycle. Provide an example of how you have utilized LCA in your past work to support decision-making and sustainability initiatives.

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How do you stay current with advancements in clean technology and sustainability?

Mention the resources you use to stay informed, including industry journals, conferences, webinars, or professional organizations. Emphasize your commitment to continuous learning and how you apply new information to enhance your work in sustainability engineering.

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Describe a time when you had to lead a cross-functional team in a sustainability project.

Provide a specific example of a project where you successfully led a diverse team. Discuss your leadership style, how you fostered collaboration, and the outcomes of the project. Highlight any challenges you faced and how you overcame them.

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What is your approach to evaluating early-stage technologies for sustainability?

Discuss your methodology for conducting techno-economic assessments and technology readiness evaluations. Explain how you analyze the feasibility of early-stage technologies and the criteria you consider in making recommendations for their integration.

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What strategies would you recommend for successful emissions reduction in mining operations?

Share specific strategies you've learned or used in the field, such as implementing carbon capture technologies, optimizing processes, and exploring alternative materials. Discuss how these strategies can be integrated into mining operations to achieve emissions reduction goals.

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How do you align sustainability goals with corporate objectives?

Explain your understanding of corporate sustainability strategies and how you would work with different departments to ensure that sustainability goals align with overall business objectives. Provide examples of how you have successfully created synergy between these areas.

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What tools do you use for lifecycle emissions modeling?

Specify the tools you are proficient in, such as SimaPro or GREET. Discuss your experience with these tools and how you have utilized them to assess lifecycle emissions, highlighting specific examples of projects where you applied them successfully.

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How would you approach sustainability reporting for stakeholders?

Detail your approach for creating transparent sustainability reports. Discuss how you would gather and analyze data, communicate outcomes, and ensure compliance with regulatory frameworks, while also catering to the needs of different stakeholders, such as investors and customers.

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What excites you about the opportunity to work at Phoenix Tailings?

Share your enthusiasm for sustainable mining and how it aligns with Phoenix Tailings' mission to innovate in the clean technology space. Discuss your passion for teamwork, creativity, and making a positive environmental impact, emphasizing why this position is an ideal fit for you.

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At Phoenix, we build novel chemical processing techniques and technologies that are at the forefront of extracting critical materials that were previously trapped in tailings, solving the waste remediation process of the mining industry, and revol...

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March 28, 2025

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