Rare Earth Elements SME
Fairfax, VA · Remote
Oversee sampling, pilot plant operations, and analytical validation activities. * Assist in ... Master's or PhD in Metallurgy, Mining Engineering, Materials Science, Geochemistry, Geology ...
Quick apply
Fairfax, VA · Remote
Oversee sampling, pilot plant operations, and analytical validation activities. * Assist in ... Master's or PhD in Metallurgy, Mining Engineering, Materials Science, Geochemistry, Geology ...
Quick apply
Fairfax, VA · Remote
Oversee sampling, pilot plant operations, and analytical validation activities. * Assist in ... Master's or PhD in Metallurgy, Mining Engineering, Materials Science, Geochemistry, Geology ...
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking Assistant Resident Engineers to assist the Resident Engineer with daily construction ...
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking Assistant Resident Engineers to assist the Resident Engineer with daily construction ...
Fairfax, VA · On-site
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
Fairfax, VA · On-site
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer to assist the Resident Engineer with management and ...
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer to assist the Resident Engineer with management and ...
Rockville, MD · On-site
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking Assistant Resident Engineers to assist the Resident Engineer with daily construction ...
Rockville, MD · On-site
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking Assistant Resident Engineers to assist the Resident Engineer with daily construction ...
Fairfax, VA · On-site
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer to assist the Resident Engineer with management and ...
Fairfax, VA · On-site
$101K - $129K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer to assist the Resident Engineer with management and ...
Washington, DC · On-site
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
Washington, DC · On-site
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities Assist the Resident Engineer with management and coordination of daily ...
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer (ARE) to support the Resident Engineer by supervising ...
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Assistant Resident Engineer (ARE) to support the Resident Engineer by supervising ...
Washington, DC · On-site
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities • Assist the Resident Engineer with management and coordination of daily ...
Washington, DC · On-site
$112K - $143K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Responsibilities • Assist the Resident Engineer with management and coordination of daily ...
Rockville, MD · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... Maintain quantity tracking logs and assist with preparation of progress payment estimates. Assist ...
Rockville, MD · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... Maintain quantity tracking logs and assist with preparation of progress payment estimates. Assist ...
Rockville, MD · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... assist with preparation of progress payment estimates. • Assist with preparation and ...
Rockville, MD · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... assist with preparation of progress payment estimates. • Assist with preparation and ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... and assist with preparation of progress payment estimates. · Assist with preparation and ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... and assist with preparation of progress payment estimates. · Assist with preparation and ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... Maintain quantity tracking logs and documentation for progress payment estimates. Assist with ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... Maintain quantity tracking logs and documentation for progress payment estimates. Assist with ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... Assist with preparation and documentation of change orders, supplemental agreements, and force ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... Assist with preparation and documentation of change orders, supplemental agreements, and force ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
Fairfax, VA · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
Fairfax, VA · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... assistant"> M&J is seeking an Office Engineer / Project Controls Engineer to manage DDOT ...
... port, marine/coastal, environmental engineering, and design-build services for both new ... assistant"> M&J is seeking an Office Engineer / Project Controls Engineer to manage DDOT ...
Fairfax, VA · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
Fairfax, VA · On-site
... port, marine/coastal, environmental engineering, and design-build services for both new ... M&J is seeking an Office Engineer to assist with Virginia Department of Transportation (VDOT ...
Rockville, MD · On-site
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Direct and supervise all project staff including Assistant Resident Engineers, Office Engineers ...
Rockville, MD · On-site
$100K - $128K/yr
... port, marine/coastal, environmental engineering, and design-build services for both new ... Direct and supervise all project staff including Assistant Resident Engineers, Office Engineers ...
An Assistant Port Engineer supports the maintenance, repair, and operational efficiency of vessels in a port or maritime environment. They assist the Port Engineer in overseeing inspections, coordinating maintenance schedules, and ensuring compliance with safety and regulatory standards. Their role involves working with contractors, vendors, and ship crews to troubleshoot mechanical and engineering issues. Strong knowledge of marine systems, problem-solving skills, and hands-on experience are essential for success in this position.
To excel as an Assistant Port Engineer, you need a solid background in marine engineering principles, vessel maintenance, and project coordination, usually supported by a degree in marine or mechanical engineering. Familiarity with computer-aided design (CAD) software, planned maintenance systems, and industry certifications such as Standards of Training, Certification and Watchkeeping (STCW) is highly valuable. Strong communication, problem-solving skills, and the ability to work collaboratively in a team are important soft skills. These capabilities ensure safe, efficient port operations and seamless coordination with various stakeholders.
As an Assistant Port Engineer, your typical day involves supporting senior port engineers in overseeing the maintenance, repair, and inspection of vessels and port equipment. You may help coordinate schedules with contractors, conduct safety checks, update maintenance logs, and assist with budgeting or procurement of parts. The role frequently requires liaising with port operations staff, suppliers, and regulatory authorities to ensure compliance and minimize operational downtime. This position offers hands-on exposure to both engineering challenges and logistical coordination within a dynamic port environment.

Full-time
Medical, Dental, Vision, Life, Retirement
Posted 2 days ago
This role ensures technical excellence, regulatory alignment, and scientific rigor for projects supporting U.S. rare earth supply chain resilience and domestic critical mineral independence. The REE SME also interfaces with Government stakeholders, research partners, and industry collaborators to validate technologies and de-risk emerging REE processes from TRL 2–7. This is a remote position.
Key ResponsibilitiesTechnical Expertise & Scientific LeadershipServe as the primary authority on rare earth elements, critical minerals, and associated supply chains, including extraction, processing, separation, and end-use applications.
Evaluate and guide advanced REE technologies across the full lifecycle:
Geological resource characterization
Mineral processing (crushing, grinding, flotation, gravity, magnetic separation)
Hydrometallurgical and solvent extraction systems
Ion exchange, membrane systems, electrowinning, precipitation
Purification and separation of individual REEs
Metallization and alloy production
REE recycling from e-waste, magnets, and industrial byproducts
Provide scientific oversight for TRL 2–6 R&D projects, ensuring clear TRL advancement pathways.
Develop and review technical deliverables, white papers, and DOE-required documentation.
Provide expertise on REE geological formations—including carbonatites, ion-adsorption clays, monazite, bastnaesite, phosphates, and coal byproducts.
Support design, interpretation, and optimization of:
Geochemical assays
Geophysical surveys (EM, magnetics, radiometrics)
Borehole logging
Ore characterization and mineralogy studies
Translate resource data into volumetric assessments, mine planning inputs, and processing flowsheets.
Lead technical design and optimization of REE processing flowsheets, including material balances, mass/energy calculations, and separation efficiency modeling.
Evaluate equipment selection, reagent chemistry, and process control strategies.
Provide techno-economic analysis inputs (TEA), including CAPEX/OPEX assumptions for separation and refining steps.
Ensure compliance with environmental standards related to REE mining and processing, including waste management, tailings, emissions, and radiation safety.
Guide sustainability practices such as:
Reduced energy and reagent consumption
Waste minimization and co-product recovery
Water efficiency and treatment technologies
Environmental monitoring and permitting strategies
Support pilot- and field-scale demonstrations of REE extraction, beneficiation, and processing technologies.
Oversee sampling, pilot plant operations, and analytical validation activities.
Assist in integration of automation, robotics, and real-time sensing technologies into REE operations.
Work with DOE, DoD, USGS, NIST, and other federal programs on critical mineral research and policy.
Provide strategic input to project partners, industry operators, and academic institutions.
Contribute to consortiums, workshops, technical forums, and stakeholder meetings.
Provide domain expertise in support of federal proposals, including DOE FOAs, DoD R&D solicitations, and USGS critical minerals programs.
Shape R&D strategies, teaming approaches, and innovation pathways for REE projects.
Review proposal technical volumes, management plans, schedules, and SOPO language.
Master’s or PhD in Metallurgy, Mining Engineering, Materials Science, Geochemistry, Geology, Chemical Engineering, or a related discipline.
10+ years of experience in REE or critical mineral extraction, separation, processing, or manufacturing.
Deep knowledge of mineralogy, processing technologies, hydrometallurgy, and REE refining flowsheets.
Proven experience supporting federal R&D, pilot plant demonstrations, or advanced commercialization activities.
Strong technical writing ability for scientific reports and federal deliverables.
Experience with DOE, DoD, DARPA, ARPA-E, NETL, USGS, or NSF programs.
Experience operating or designing pilot plants, metallurgical labs, or mining testbeds.
Expertise in unconventional REE resources (coal ash, acid mine drainage, industrial byproducts).
Experience with AI/ML-enabled mineral characterization or advanced sensing systems.
Familiarity with U.S. critical mineral policy, supply chain risks, and international market dynamics.
Strong analytical and systems-thinking abilities.
Ability to translate complex scientific concepts into clear recommendations.
Effective communication with technical, non-technical, and government stakeholders.
Leadership in multidisciplinary environments and research consortia.
Commitment to safety, sustainability, and scientific integrity.
Hybrid work environment with potential travel to mine sites, proving grounds, pilot facilities, academic labs, and federal meetings.
Ability to work around industrial equipment and in outdoor field settings as required.
Must comply with all applicable safety and environmental protocols.
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