7.3. Mechanical Engineer II

Phoenix TailingsBurlington, MA
$90,000 - $120,000

About The Position

Phoenix Tailings is looking for a Mechanical Engineer II to help take next-generation processing equipment from concept to deployment. In this role, you will design, build, test, validate, and commission complex mechanical systems that support high-temperature electrolysis, furnace technologies, and innovative electrochemical and thermal processes. This is a hands-on engineering role for someone who thrives in a fast-paced R&D environment and is excited by the challenge of turning ambitious concepts into reliable, deployed hardware. You will work on first-of-a-kind equipment that combines mechanical, thermal, vacuum, and process engineering to solve complex challenges at the forefront of industrial decarbonization, advanced manufacturing, and critical metals production.

Requirements

  • Bachelor’s degree in Mechanical Engineering or a related engineering discipline.
  • 3+ years of mechanical engineering experience designing, building, testing, and commissioning complex equipment, industrial systems, process hardware, or R&D systems.
  • Familiarity with V-Model (V-Diagram) based system development methodologies
  • Strong SolidWorks experience, including part design, assemblies, detailed drawings, and design documentation for fabrication and assembly.
  • Experience developing and executing test plans for system, subsystem, or component verification and validation.
  • Experience selecting and integrating mechanical components such as pumps, actuators, bearings, lead screws, seals, fasteners, thermal systems, and industrial hardware.
  • Hands-on experience with mechanical tooling, fixtures, prototype assembly, equipment troubleshooting, and commissioning in a lab, pilot, manufacturing, or industrial environment.
  • Able to wear a respirator
  • Ability to life 50lbs

Responsibilities

  • Own mechanical systems and equipment from early concept development through design, fabrication, testing, commissioning, and deployment.
  • Design and develop novel processing equipment for high-temperature electrolysis, furnace systems, and critical metals production technologies.
  • Create 3D CAD models, assemblies, drawings, and technical documentation using SolidWorks to support fabrication, procurement, assembly, installation, and commissioning.
  • Select and specify critical mechanical components and mechanisms, including pumps, bearings, lead screws, actuators, seals, thermal components, fixtures, and industrial hardware based on engineering analysis and test data.
  • Develop and execute verification and validation plans for components, subsystems, and integrated equipment to prove performance, reliability, and readiness for deployment.
  • Use Design of Experiments, structured testing, and data analysis to validate new concepts, troubleshoot equipment performance, and make sound engineering decisions.
  • Build, assemble, modify, and commission mechanical tooling, fixtures, prototypes, and pilot-scale equipment in hands-on lab, R&D, and production environments.
  • Apply V-Model system development principles to connect requirements, system architecture, detailed design, integration, testing, validation, and deployment.
  • Investigate mechanical, thermal, vacuum, and process-related issues, identify root causes, and implement practical design improvements that move technology forward.
  • Drive rapid design-build-test iterations with urgency while maintaining sound engineering judgment, safety, and documentation discipline.

Benefits

  • 100% Medical, dental, and vision coverage for employee.
  • Ownership in a fast-growing venture-backed company.
  • Unlimited PTO.
  • Learning and development opportunities to grow your skills and career.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service