# Dagger Xingjian Chen > Software Engineer at BuildOps Location: Seattle, Washington, United States Profile: https://flows.cv/dagger As a passionate software engineer, I specialize in front-end development using JavaScript, TypeScript, and the MUI design library to build responsive, user-friendly interfaces. With hands-on experience in MySQL and AWS, I’m comfortable working with databases and cloud infrastructure, though I am continuing to deepen my expertise. On the back-end, I have worked extensively with Apollo GraphQL and Express to build scalable and efficient APIs. I’m always eager to tackle new challenges and continue growing in both front-end and back-end development, creating seamless and dynamic applications. ## Work Experience ### Senior Software Engineer I @ BuildOps Jan 2023 – Present ### Software Engineer II @ BuildOps Jan 2022 – Jan 2023 ### Software Engineer I @ BuildOps Jan 2021 – Jan 2022 ### Software Engineer Intern @ BuildOps Jan 2020 – Jan 2021 ### Research Assistant @ University of Pittsburgh Jan 2018 – Jan 2019 | Greater Pittsburgh Area - Solvent cast the polycaprolactone (PCL) - magnesium composite and produce filament by extrusion - Use fused-deposition-modeling (FDM) method to 3D print the PCL-Mg bone scaffold - Use gas pycnometer to measure the volume of the printed scaffold and calculate its macroporosity. - Uniaxial tensile testing was used to determine the compressive strength and compressive modulus Skills: 3D printing (FDM), gas pycnometer, solvent casting, mechanical testing ### Research Assistant @ University of Pittsburgh Jan 2017 – Jan 2018 | Greater Pittsburgh Area - Work with PhD student in Dr. Markus Chmielus' lab to understand the effect of sintering time and temperature on density and morphology of Co-Cr-Mo alloy Skills: Optical microscope, ImageJ, sample preparation (cutting, mounting, polishing), density measurement ### Research Assistant @ University of Pittsburgh Jan 2017 – Jan 2018 | Greater Pittsburgh Area - Image analysis of bamboo structure to find the fraction of stoma for different bamboos - Matlab is the main tool to process images Skill: Matlab ### Research Assistant @ Sir Run Run Shaw Hospital Jan 2018 – Jan 2018 | Hangzhou, Zhejiang, China - Work with medical PhD students to fabricate bone grafting materials (xenograft - porcine bone) Skills: Paraffin embedding, tissue sectioning, and cell culturing ## Education ### Master's degree in Materials Science Stanford University ### Bachelor's degree in Material Science and Engineering University of Pittsburgh ### Bachelor's degree in Material Science and Engineering Sichuan University ## Contact & Social - LinkedIn: https://linkedin.com/in/daggerchen --- Source: https://flows.cv/dagger JSON Resume: https://flows.cv/dagger/resume.json Last updated: 2026-03-30