1

Minerals Processing Engineer Jobs in Colorado (NOW HIRING)

We have also developed the United States' first rare earth and critical minerals processing ... Coordinate with engineering, procurement, construction, and finance teams to ensure alignment of ...

Project Engineer

Denver, CO · On-site

$103.50 - $126.50/hr

Responsible to lead a team of structural/mechanical engineers and designers in developing ... and minerals processing. Combining responsibility, advanced technologies and a commitment to ...

R&D Engineer

Wheat Ridge, CO · On-site

$105K - $120K/yr

We have also developed the United States' first rare earth and critical minerals processing ... The R&D Engineer supports the development and scale-up of rare earth processing technologies ...

Lead Mechanical Engineer

Lone Tree, CO · On-site +1

$109K - $131K/yr

... mineral processing, and chemical processing plants. This role supports process design, and leads mechanical system design, equipment specification, engineering analysis, and multidisciplinary ...

Structural Engineer

Denver, CO · On-site

$95.40 - $116.60/hr

Performs structural engineering analysis and design in order to meet project and client ... and minerals processing. Combining responsibility, advanced technologies and a commitment to ...

Senior Project Engineer

Denver, CO · On-site

$135 - $150/hr

Working knowledge of exploration, mine planning, mineral processing, infrastructure development, and project execution strategies.* Study experience working with EPCM firms and/or engineering ...

Senior Surface Mining Engineer

Denver, CO · On-site

$107K - $147K/yr

... engineering, consulting and corporate office experience is a plus, as well as proven technical ... mining, mineral processing, and financial analysis expertise. Willingness to lead and manage ...

Showing results 41-60

Minerals Processing Engineer information

What does a minerals processing engineer do?

A Minerals Processing Engineer is responsible for designing, developing, and optimizing processes to extract valuable minerals from ores efficiently and sustainably. They work with various techniques such as crushing, grinding, flotation, and leaching to separate and refine raw materials. These engineers collaborate with geologists, metallurgists, and plant operators to improve plant performance, reduce waste, and enhance environmental sustainability. Their role is vital in the mining industry, ensuring that resources are processed safely and cost-effectively for further use in manufacturing and industries.

What are the key skills and qualifications needed to thrive as a minerals processing engineer?

A Minerals Processing Engineer should have a solid background in chemical or metallurgical engineering, mineralogy, and process optimization, usually supported by a relevant engineering degree. Familiarity with simulation software, process control systems, and adherence to industry safety certifications like MSHA are commonly required. Strong analytical thinking, problem-solving abilities, and clear communication help facilitate effective teamwork and troubleshooting. These competencies ensure safe, efficient, and cost-effective mineral extraction and processing in dynamic industrial environments.

What are the most commonly searched types of Minerals Processing Engineer jobs in Colorado?

The most popular types of Minerals Processing Engineer jobs in Colorado are:

What are popular job titles related to Minerals Processing Engineer jobs in Colorado?

For Minerals Processing Engineer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Minerals Processing Engineer jobs in Colorado look for?

The top searched job categories for Minerals Processing Engineer jobs in Colorado are:

What cities in Colorado are hiring for Minerals Processing Engineer jobs?

Cities in Colorado with the most Minerals Processing Engineer job openings:

Infographic showing various Minerals Processing Engineer job openings in Colorado as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Lead Process Engineer - Kiewit Industrial and Water Engineering

Arvada, CO • On-site, Remote


Kiewit Corporation
Construction Materials Wholesalers • 10K+ employees

7.8

Company rating: 7.8 out of 10

Based on 139 frontline employees who took The Breakroom Quiz

23rd of 80 rated construction

Great coworkers

People enjoy working here

Good employer


$106K - $137K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago


Job description

Requisition ID: 181856 

Job Level: Senior Level 

Home District/Group: Kiewit Industrial & Water Engineering 

Department: Design Engineering 

Market: Water/Wastewater 

Employment Type: Full Time 

Position Overview

We are hiring Lead Process Engineers to drive the technical development, design integration, and execution of projects in our industrial market (Renewable Fuels, Mining and Minerals, Semiconductor, and Process Industries) across North America. In this role, you will serve as the process discipline lead on pursuits and projects, guiding treatment process selection, developing process design packages, and coordinating closely with mechanical, civil, structural, electrical, and construction teams to deliver safe, cost-effective, and constructible solutions. This position is ideal for an engineer with 10 plus years in spanning one or preferably more of these markets, who thrives in a design-build/EPC environment, values participating in the construction and commissioning of their designs, enjoys solving complex treatment challenges, and can translate process engineering into practical, field-ready designs.

If you are looking for a career, with stability, and a diverse portfolio of challenging DB or EPC projects to work on - look no further!  We are an employee-owned company which fosters dedication and commitment to project success and are positioned as a key player in meeting growing water/wastewater treatment demands.  We cultivate a culture of excellence, innovation, and teamwork, making it the most rewarding place to build your career.  With top notch health benefits, great time off, flexible work options, a 401K plan and unbeatable growth opportunities - we are deeply invested in the future of our employees.  

District Overview

The Kiewit Water Engineering team, which includes process, mechanical, piping, electrical, instrumentation and control, structural, and civil disciplines, is a multi-faceted division of Kiewit with best-in-class technical expertise focused on collaborative Design-Build (progressive and/or fixed price) and EPC delivery models for complex projects. The team brings project solutions to life across North America in the following areas: renewable natural gas, green hydrogen, mineral processing, brine processing, geothermal power, semiconductor fabrication, biomass gasification and combustion, semiconductor fabrication, and more. Clients are turning to Kiewit during all stages of design-build projects to lead and manage multi-disciplined design teams to work together to improve schedule, track design progress, control costs and minimize risk. We are a high performing team of engineers and designers that leads the water engineering process and collaborates with Kiewit's construction teams to approach construction-driven engineering with a focus on safe, cost effective, and innovative designs, all working to develop the best possible delivery of projects to our clients.

Location

This role will be based out of our Lenexa, Kansas, Lone Tree, Colorado, or Houston, Texas office. We do provide relocation assistance.

Options for remote locations near other Kiewit hubs in Dallas/Fort Worth may be considered for Senior level candidates with 10 plus years experience that have subject matter expertise in the markets in which we work. Position may require up to 25% travel on average based on project demands.

Responsibilities

Provide technical and engineering leadership for industrial facility design including treatment process evaluation, process selection, and optimization and conduct evaluations of full-scale plant operations, pilot studies and bench studies as required. Identify and evaluate process lifecycle costs.
Oversee and participate in the preparation of engineering reports, engineering drawings and specifications for complex projects such as PFD's, P&ID's, process simulations, datasheets, and engineering calculations including hydraulics and equipment sizing.
Perform process systems and hydraulics modeling and scenario studies.
Provide front line issue resolution of technical issues associated with design, construction, equipment and/or operations.
Work within a multi-disciplinary team of engineers within a budget and schedule to execute design and engineering on projects.
Interface with clients and partner engineers to support project and business development needs. Work directly with clients and partners on projects and tasks to develop long-term relationships. Attend client development activities and functions.
Coordinate multiple projects simultaneously.
Provide consultation in specialized areas related to treatment plant planning and design.
Communicate/present industry trends, competitive situations or technology/regulatory issues.
Support business development efforts and help in the pursuit of new projects. Contribute to the development of client proposals and project cost estimates.
Actively participate in professional organizations. Prepare and make presentations to clients and professional organizations.
Serve as a representative of Kiewit at meetings, presentations and public hearings/meetings relative to assigned projects.
Participate in improving company resources and tools to improve design production and efficiency.
Mentor Kiewit's entry and mid-level engineers for skill development. Review their progress and results. Provide direction and coaching, as needed.

Qualifications

Bachelor's degree or higher in Chemical Engineering or similar discipline is a required
Minimum of 10 years' experience is required in process development, conceptual and detailed design with a background in our industrial market (Renewable Fuels, Mining and Minerals, Semiconductor, and Process Industries), performing functions as outlined above.

10+ years' experience in increasingly challenging positions, leading the scope for process design on water/wastewater facilities.  Experience with green technologies and developing new processes is preferred.
10+ years' experience performing engineering-related design or oversight of designs.
5+ years' experience managing an engineering and design team.
Professional Engineer (PE) registration preferred.
Experience as process design engineering lead on design-build projects is preferred.
Must be willing and available to accommodate intermittent travel of approximately 25%.
Preferred experience utilizing AFT Fathom or AFT Arrow hydraulic simulation software or equivalent and/or process modeling and simulation software such as Biowin, SUMO, Hysys and/or Aspen, Metsim, OLI, Unisim, etc.

Ability to lead processing engineering tasks on a project, within the allocated budget and schedule, including mentoring and guidance of junior colleagues and professional interaction with other project disciplines is required.
#LI-JB1

Other titles and key words:  Principal Wastewater Treatment Engineer,  Principal Process Engineer - Wastewater Treatment, Bioresources and Energy Services Engineer, Geothermal Energy Process Engineer, Green Hydrogen, Green Methanol, RNG, Biomass gasification, cold water treatment, RNB, Renewable Natural Gas, Copper Processing, Industrial Minerals Process

 Other Requirements:
    Regular, reliable attendance
    Work productively and meet deadlines timely
    Communicate and interact effectively and professionally with supervisors, employees, and others individually or in a team environment
    Perform work safely and effectively. Understand and follow oral and written instructions, including warning signs, equipment use, and other policies.
    Work during normal operating hours to organize and complete work within given deadlines. Work overtime and weekends as required.

Base Compensation: $130,000 - $190,000 
(Actual compensation is subject to variation due to such factors as education, experience, skillset, and/or location)

This posting will be active from:  08/13/2026  - 01/01/2027  

We offer our fulltime staff employees a comprehensive benefits package that's among the best in our industry, including top-tier medical, dental and vision plans covering eligible employees and dependents, voluntary wellness and employee assistance programs, life insurance, disability, retirement plans with matching, and generous paid time off.

Equal Opportunity Employer, including disability and protected veteran status.


Kiewit logo

About Kiewit

Sourced by ZipRecruiter

Kiewit Infrastructure Engineering's Design-Build team is driving clients to turn to Kiewit during all stages of design-build projects. Through our integrated design and construction approach, our multi-disciplinary team works together to improve schedule, control costs and minimize risk. Our construction-focused engineers work collaboratively with our estimators and builders to design solutions that are innovative, constructible, and designed with a focus on safety. Clients benefit from the proven processes and tools used by Kiewit to minimize project risk. We are an in-house resource that supports projects throughout the company. Our staff shares experiences gained, innovative concepts, and best practices for all projects that we support.

Industry

Construction materials wholesalers

Company size

10,000+ Employees

Headquarters location

Omaha, NE, US

Year founded

1884


What Kiewit Corporation employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom