Senior Process EngineerReports to: Chief Technology OfficerAbout the RoleMagrathea is seeking a highly capable, hands-on Senior Process Engineer to support the development, operation, and scale-up of our revolutionary electrolytic process technology.
The role is ideal for someone who thrives in a fast-paced R&D environment and combines strong mechanical, electrical, fabrication, and process troubleshooting skills with a practical, solutions-oriented mindset. The successful candidate will play a critical role in designing, building, operating, and improving pilot-scale systems, and transferring the knowledge gained to Magrathea's demonstration plant in Southwest Arkansas.
This position requires creativity, initiative, sound technical judgment, strong operational problem-solving skills, and clear communication across pilot plant, laboratory, and demonstration plant environments.
What You'll Do- Utilize piloting expertise to propose equipment/process innovations to execute development experiments at the demonstration plant.
- Operate, troubleshoot, and optimize demo-scale electrolytic and high-temperature processing equipment.
- Documenting pilot operational learnings for transfer to demonstration scale engineering and operations.
- Travel to Arkansas to support commissioning, startup, and operational activities at Magrathea's demonstration plant.
- Diagnose and resolve mechanical, electrical, instrumentation, and process related issues.
- Fabricate and modify custom equipment using cutting, grinding, welding, drilling, and tapping tools.
- Design and modify piping, plumbing, electrical, and instrumentation systems.
- Support PLC controls, sensor integration, wiring, and data logging systems.
- Repair and perform preventative maintenance on pilot plant and laboratory equipment.
- Maintain accurate experimental records, operational logs, and communicate learnings and observations.
- Run pre-established analytical methods to analyze samples from pilot or demonstration plant experiments.
- Collaborate with engineers, scientists, and technicians to improve processes and scale emerging technologies.
- Manage raw materials, process samples, and consumables while maintaining accuracy and traceability.
- Work safely in industrial and laboratory environments using appropriate PPE, including extended use of full-face respirators and aluminized protective equipment for high temperature and molten material operations.
What You Bring- Strong mechanical and electrical diagnostic and problem-solving skills.
- Ability to understand the entirety of a complex chemical flowsheet and the effects upstream results have on downstream unit operations.
- Experience operating and maintaining industrial or pilot processing equipment. Bonus if you have experience with high temperature equipment or molten materials.
- Comfortable working in physically demanding industrial environments involving high temperatures, molten materials, specialized PPE, and extended periods on foot.
- Hands-on fabrication experience and comfort working with tools and machinery.
- Familiarity with PLC systems, instrumentation, sensors, or industrial controls.
- Ability to interpret technical drawings, wiring diagrams, and P&IDs to support equipment operation, maintenance, and system modifications.
- Experience using AI tools to accelerate technical documentation, data review, root cause analysis, and knowledge transfer.
- Strong communication, documentation, and problem-solving skills.
- Capable of training others in best practices and transferring process/operational knowledge.
- Ability to work independently in fast-paced process development environments.
- Knowledge of laboratory safety and chemical handling practices.
- Willingness to travel between pilot and demonstration-scale facilities in Oakland and Stamps, Arkansas, respectively, for up to 2 weeks per month.
Compensation & Benefits- $150,000-$190,000 annual salary + significant equity and milestone-based incentives
- Comprehensive health, dental, and vision
- 401(k) with immediate eligibility
- True leadership opportunities on a program with global impact
Join UsIf you're looking for the most challenging, consequential, and meaningful engineering work of your career - this is the moment. Help us build the clean industrial base future generations will inherit. Help us restore independence to a security-critical strategic metal.
Make history with us. 
