Construction & Commissioning Quality Engineer

Mariana Minerals•Houston, TX

About The Position

Mariana Minerals is a software-first, vertically integrated minerals company working to supply critical minerals for modern energy, AI, and defense technologies. It combines industry expertise with software, automation, and data-driven decision-making. The Construction & Commissioning Quality Engineer leads site quality across all Mariana Minerals industrial process facilities, from construction and installation through testing, commissioning, handover, and project closeout. The role ensures quality requirements are incorporated into field execution, verified at hold points, and documented so plants are complete, compliant, and ready to operate. This company-wide role covers every Mariana Minerals project rather than a single site. It serves as the primary quality interface among site teams, Construction Management, Field Engineering, Design Engineering, Process Engineering, Supply Chain, contractors, vendors, and Operations, while establishing consistent quality standards across projects. The role supports safe, reliable start-ups and first-time-right plant delivery.

Requirements

Bachelor’s degree in Engineering, Construction Management, Quality Management, or a related technical field, or equivalent experience.
Experience in construction, commissioning, field, or project quality on industrial, mining, processing, or power generation projects.
Hands-on experience with ITPs, quality plans, witness and hold points, NCR management, root cause analysis, and corrective and preventive action.
Ability to interpret specifications, contracts, drawings, procedures, and acceptance criteria, including applicable codes and standards.
Proficiency with Microsoft Office, document management systems, and digital quality or tracking tools.
Excellent communication, judgment, and decision-making abilities, with the ability to influence without direct authority across multiple teams and sites.
Highly organized and detail-oriented, with the ability to manage multiple sites, inspections, and open actions at once.
Willingness to travel frequently to project, supplier, and manufacturing sites.

Nice To Haves

Experience with mechanical, electrical, dimensional, welding, coating, NDE, calibration, or commissioning inspection.
Supplier or site auditing experience.
Experience with EPC/EPCM delivery models.

Responsibilities

Lead site quality activities across construction, installation, testing, commissioning, handover, and closeout on every Mariana Minerals project.
Develop and execute site-specific Quality Plans, Inspection and Test Plans (ITPs), inspection checklists, and quality schedules.
Verify contractual, regulatory, local statutory, environmental, and company quality requirements in the field.
Support kick-off meetings, site and commissioning team handovers, project coordination meetings, and final handover reviews.
Execute C&C ITPs and verify inspections, tests, witness points, hold points, and acceptance criteria are completed according to project requirements.
Coordinate internal and third-party inspection resources for mechanical, electrical, dimensional, welding, coating, NDE, calibration, and functional testing.
Plan and conduct witness inspections, site audits, and surveillance activities, including readiness checks and verification of required equipment and calibration status.
Prevent nonconforming work from being built upon, concealed, or handed over before it is dispositioned and corrected.
Initiate, investigate, and close NCRs, deviations, punch-list items, and corrective actions using clear objective evidence.
Lead root cause analysis and corrective and preventive action with site teams, engineering, contractors, and suppliers.
Monitor quality risks, NCR trends, and overdue actions, escalating issues that affect schedule, safety, environmental compliance, or cost.
Capture lessons learned across sites and standardize company-wide quality processes to reduce rework.
Manage site quality records, including inspection, test, commissioning, and turnover records, ensuring they are complete, traceable, and contract compliant.
Compile quality data books, dossiers, and closeout packages, and track open actions and approvals through closure.
Coordinate with Document Control to make records available for review, acceptance, and archiving.
Ensure contractors, vendors, and site suppliers meet Mariana Minerals quality requirements, site procedures, and specifications.
Monitor contractor and vendor quality performance and drive resolution of issues affecting construction, commissioning, or turnover.
Partner with Supply Chain when supplier documentation, NCRs, or shipment release records affect site acceptance.
Collaborate with software engineering to digitize ITPs, inspection records, and NCR tracking and support automation of quality workflows.
Promote a safe work culture and incorporate safety and environmental requirements into inspection and acceptance criteria.
Ensure site quality activities align with HSE plans and local regulatory requirements.