Sr. TPV Process Development Engineer

Overview In this role you will own optical thin-film processes to advance thermophotovoltaic performance. You will combine hands-on cleanroom work with optical design and device modeling to guide the efficiency roadmap. You’ll design experiments, validate solutions in fabrication, and translate gains into device improvements. The position sits at the intersection of process development, modeling, and metrology within a mission-driven team focused on affordable, clean energy. You’ll work closely with cross-functional teams to deliver measurable impact. Compensation / Benefitsequity compensation (stock options)premium health benefits package401K plan with employer contributionsflexible spending accountsgenerous paid time offpaid volunteer time off ResponsibilitiesDevelop and own optical thin-film deposition processes, including coating design, qualification, troubleshooting, and process controlOwn the process-side roadmap for TPV efficiency improvements using optical and device models (Python) and AI-assisted analysisCharacterize thin films and establish metrology for thickness, refractive index, reflectance, uniformity, stress, and adhesionCompare model predictions to measured device performance and update models to guide developmentPlan and run structured process experiments with tools like Python, JMP, and AI for data-driven insightsMaintain rigorous documentation, SOPs, and process specifications to ensure knowledge transfer Key requirementsBachelor’s degree with 5+ years of experience, Master’s with 3+ years, or PhD in related fieldsHands-on experience with physical vapor deposition (PVD) techniques (electron-beam, thermal, or sputtering)Experience developing and qualifying optical thin-film deposition processesOptical and device-modeling expertise for multilayer stacks and validation against dataKnowledge of thin-film metrology techniques (reflectometry, FTIR, spectrophotometry, ellipsometry)Strong understanding of semiconductor device physics, photovoltaics, or optoelectronic devicesProficiency in Python or similar tools for data processing and modelingExperience with AI-assisted coding, modeling, and documentation; ability to validate outputsAbility to produce clear technical documentation and transfer knowledge across teamsClear technical communication and cross-functional collaboration mindsetcross-functional collaborationstrong technical communicationcontinuous-improvement mindsetPhysical vapor deposition (PVD) techniquesOptical thin-film deposition and multilayer designOptical and device modeling