Materials Engineer - Chemist

Castelion Corporation•Torrance, CA

13d•Onsite

About The Position

Castelion is seeking a highly motivated chemist to support development and scale-up of a proprietary wet chemistry process that is central to production of next-generation aerospace materials. This role is ideal for an individual interested in reaction development, process optimization, and translating laboratory-scale chemistry into robust manufacturing processes. The role combines hands-on laboratory chemistry with analytical process development responsibilities. The chemist will execute and optimize multi-step chemical syntheses, characterize reaction products, develop standardized operating procedures, and support the transition of the process from laboratory-scale production to increasingly larger manufacturing systems.

Requirements

Bachelor's or Master's degree in Chemistry, Chemical Engineering, Polymer Chemistry, Organic Chemistry, or a related field.
1+ years of wet chemistry synthesis experience

Nice To Haves

Experience with wet chemistry processing, hazardous chemical handling, and laboratory-scale synthesis.
Familiarity with standard analytical characterization techniques (e.g., GC, GC-MS FTIR, NMR, Chromatography, DSC, TGA, or equivalent).
Strong experimental design, data analysis, and technical documentation skills.
Ability to work independently in a hands-on laboratory environment.

Responsibilities

Execute and monitor multi-step wet chemistry synthesis processes to support development and production activities.
Design and perform experiments to optimize reaction conditions, yields, purity, and process repeatability using structured experimental methodologies.
Characterize reaction intermediates and final products using standard analytical laboratory techniques.
Collect, organize, and analyze process and analytical data to support process optimization and manufacturing readiness.
Develop and maintain process documentation, work instructions, batch records, and standardized operating procedures.
Troubleshoot reaction, purification, and process issues in a fast-paced development environment.
Support scale-up activities by evaluating reaction performance across increasing batch sizes and implementing process improvements to enable future production capacity.

Benefits

Employee Equity: Meaningful equity for all full-time employees - share value has increased 150x in three years
Personal Time Off: Four (4) weeks of paid time off to unplug, reset, and come back sharp—velocity matters, burnout doesn't
Company Paid Holidays: Ten (10) company paid holidays
Medical: We offer plans at 100% employee covered and 80% of dependent coverage
Dental & Vision: We cover 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care
FSA/HSA: To support long-term health and financial resilience, we offer FSA and HSA options that allow employees to set aside pre-tax dollars for eligible medical and dependent care expenses
Retirement: 401k plan offered to support long term financial growth along side high-impact, high-velocity work
Paid Parental Leave: We support growing families with meaningful time to bond and recover. Birthing parents are eligible for up to 10 weeks of paid leave, while non-birthing parents may take up to 4 weeks of paid leave. This time can be used for pre-natal care, pregnancy, childbirth, and related medical needs—ensuring every parent has the support they need during this important life moment.8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees
Meals & Catering: Frequently catered lunches and team meals, plus company-covered meals when extra time or effort is required
Snacks & Beverages: Fully stocked kitchen with unlimited snacks and drinks to keep you fueled throughout the day
$100 monthly fitness stipend to support peak performance and health, both inside and outside of work
EV Charging: Onsite electric vehicle charging available for employees