Senior Process Engineer – Extraction | Burlington, MA

Mineral Processing and Metallurgy
Massachusetts, United States
June 8, 2026
$120,000 - $160,000 / year
Full-time
Apply Now

Job Description

Company: Phoenix Tailings
Location: Burlington, Massachusetts, United States
Category: Mineral Processing and Metallurgy
Job Type: Full-time
Work Arrangement: On-site
Experience Level: Senior-Level
Salary: $120,000.00 – $160,000.00 annually

Job Summary
Phoenix Tailings is seeking a Senior Process Engineer – Extraction to lead process design and scale-up for critical and rare earth metals production.

This role focuses on scaling mining and metals processing operations from pilot or early commercial stages into reliable, high-throughput systems, with responsibility for process design decisions that impact recovery, throughput, operating cost, and system reliability.

Key Responsibilities

  • Lead process design and scale-up of mining and metals operations from pilot to commercial production
  • Own mass and energy balances across complex, multi-step processing flowsheets
  • Define process architecture, operating envelopes, and design criteria for reliable continuous operation
  • Drive process optimization to increase throughput, recovery, and overall system efficiency
  • Identify and mitigate scale-up risks related to materials handling, kinetics, residence time, and process control
  • Support equipment sizing, selection, and specification for large-scale metals processing systems
  • Develop and review process flow diagrams, design bases, and technical documentation
  • Partner with operations and leadership to support commissioning, ramp-up, and steady-state performance
  • Support Phoenix Tailings’ transition from development-stage technology to commercial operations

Qualifications

  • Bachelor’s or Master’s degree in Chemical Engineering, Metallurgical Engineering, or a related discipline required
  • 7+ years of experience in process engineering within mining, metals, or extractive industries
  • Experience scaling mineral processing or metallurgical systems from pilot or demonstration scale to commercial operation
  • Strong command of mass balances, process modeling, and flowsheet development
  • Experience with hydrometallurgical, pyrometallurgical, or combined processing routes for metals production
  • Ability to diagnose process bottlenecks and implement scalable, data-driven solutions
  • Comfortable working in fast-moving environments where process design and execution evolve rapidly

Why This Role Matters
This role is foundational to scaling cleaner critical metals production by helping transform pilot-stage extraction technologies into reliable commercial operations that support domestic rare earth and critical materials supply chains.

Apply
👉 Apply online: https://jobs.lever.co/PhoenixTailings/f74e0331-dee4-4255-92fb-9257c1b1126b

⚠️ Disclaimer
This job is shared for informational purposes. WeMineUp is not affiliated with the hiring company. Please apply through the official company process.

Related Jobs