Process Engineer II

About Alta

Alta Resource Technologies (Alta) is a next generation mining company that uses synthetic biology to separate critical minerals from conventional and unconventional resources, including e-waste.

Founded in 2023, the company is expanding its team in Boulder, CO. The exponential growth of new tech industries, as well as the information technology sector, are driving historic growth in mineral demand and stressing existing supply streams.

Meeting new demand, diversifying the supply chain, and producing minerals in a more sustainable manner requires the rapid development, deployment and scaling of new technologies. This mineral challenge represents a historic opportunity for technology development and value creation. Alta is proud to be at the vanguard of this mega trend.

Role Summary

Alta is seeking a talented Process Engineer to join our growing Process Development Group. Reporting directly to the Director of R&D Engineering, this role will support the lab and pilot development, as well as technology transfer to Alta’s demonstration plant.

Daily operations will include experimental execution at the lab and pilot scale, technical writing for SOPs and tech transfer documents, and assisting the demonstration plant optimize our processes.

The position plays an important part in advancing Alta’s mission by providing reliable data and communications to ensure smooth transition of our processes at each scale. An ideal candidate will bring strong foundational laboratory skills, prior SMB or semi-prep chromatography experience, TFF experience, and experience working in a multi-disciplinary organization.

A desire to learn and grow within a team spanning chemistry, engineering, and operations is a must.

The role requires full-time, on-site presence at our Boulder lab, with occasional support outside standard hours.

Key Responsibilities

Laboratory & Pilot Development

• Independently design, execute and troubleshoot experiments including: chromatography on AKTA and other automated systems, chemical synthesis, mineral digestion, precipitation and solid/liquid separations.
• Assist in improving process workflows, documentation protocols, and data analysis methods.
• Support day-to-day lab readiness through reagent preparation and consumables management.
• Interact and synchronize with the Analytical Chemistry team to coordinate sample analysis.
• Maintain clear and accurate records of experimental conditions, actions, and results for Management and the Demonstration Team.

Technology Transfer

• Support the team to generate work instructions, procedures, and process transfer documents for transition from pilot to demonstration scale
• Analyze demonstration scale data to support troubleshooting and provide recommendations for process optimization

Downstream Processing/Formulations

• Work cross-functionally between Process Engineering, Applied Biology, Data Science and Analytical Chemistry teams
• Design and execute buffer exchange experiments via TFF
• Optimize buffer formulations for both protein stability and post-processing requirements

Safety, Compliance & Documentation

• Follow all laboratory safety protocols for chemical handling, instrumentation, and waste management.
• Maintain organized, complete laboratory records aligned with Alta’s quality expectations.
• Support updates to procedures, documentation tools, and best practices.

Required Qualifications

• Bachelor’s degree in Chemical Engineering, Chemistry, Biology or a related scientific discipline.
• 2-4 years of laboratory or pilot experience in research or industry setting.
• Strong understanding of chemical engineering separation techniques and fluid dynamics.
• Ability to analyze data, generate conclusions, and present clear results to technical teams.
• Ability to execute and troubleshoot experiments using complex chemical systems.

Preferred Qualifications

• Experience scaling chemical processes from R&D to multi-kilogram scale
• Experience developing chromatographic separation processes
• Experience writing and participating in process safety analyses
• Hands-on experience designing and building chemical flow systems
• Exposure to a range of analytical instrumentation, such as LC-based systems, mass spectrometry, particle size analysis, or similar platforms.
• Please note: Applicants must be authorized to work for ANY employer in the U.S.

What We Offer

• The opportunity to lead a breakthrough program redefining U.S. supply chain resilience in critical materials.
• A mission-driven, high-trust team operating at the intersection of innovation, national security, and sustainability.
• High Impact & Visibility: direct interaction and reporting to executive leadership.

Compensation & Benefits

• The starting pay range for this position is $90,000 - $135,000 and is commensurate with educational background and work experience. Benefits include:
• 401(K)
• Medical, Dental, Vision plans (or equivalent)
• Flexible Time Off
• Paid Parental Leave
• Paid Sick Leave
• Company Holidays

EOE

Alta Resource Technologies is an equal opportunity employer committed to building a workforce that reflects the diversity of the communities we serve. We believe that varied perspectives, experiences, and backgrounds strengthen our team and drive better outcomes for our clients and partners.

We welcome and encourage applications from all qualified individuals regardless of race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by law. Our hiring decisions are based solely on qualifications, merit, and the needs of the business. Alta participates in e-Verify for all positions.

If you require accommodations at any point in the hiring process, please let your recruiter know.

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