# Chang Li > Software Engineer at Lightspark Location: San Jose, California, United States Profile: https://flows.cv/changli Skilled and dedicated software engineer with a passion for product development. Proficient coding capability backed by strong analytical thinking, leveraging it to create efficient, innovative and user-friendly solutions for intricate problems. Accomplished in project management, adeptly leading and coordinating multidisciplinary and cross company teams. Committed to engineering impactful software products that consistently surpass expectations. I am proficient in Python, Java, Scala, Spark, GraphQL, AWS, Terraform, Datadog, Gitlab, Jira, PagerDuty, Docker, LogRepo, VBA, Matlab and etc. ## Work Experience ### Software Engineer @ Lightspark Jan 2023 – Present ### Software Engineer @ Indeed.com Jan 2021 – Jan 2023 | Foster City, California, United States - Led the segmentation effort for the Indeed and Glassdoor Enterprise Branded Ads unification project, which is a cross-company, cross-org, key-initiative that spans multiple teams across both companies. Segmented the Glassdoor jobseekers with all the segments from the Indeed ecosystem. - Segmented millions of Indeed jobseekers using cron jobs and near real time pipelines. Segments were used in multiple Indeed Ads systems. - Designed the Audience Management Platform, which facilitates the segment’s creation and jobseeker segmentation. Developed the rule engine for evaluating any customized segment rules. - Redesigned and improved the segment AB proctor test setup. - Migrated the pipelines using Skipper cluster and hadoop to AWS using EMR clusters and S3 system. ### Staff Mechanical Engineer @ Tesla Jan 2021 – Jan 2021 | Fremont, California, United States ### Sr. Mechanical Engineer @ Marathon Petroleum Corporation Jan 2016 – Jan 2020 | Martinez, California, United States - Built multiple internal software tools including the orifice flow calculation tool, the valve torque monitoring tool and the turbine efficiency monitoring tool used by hundreds of engineers with huge work efficiency increase. ### Sr. Mechanical Engineer @ Chicago Bridge & Iron Company Jan 2015 – Jan 2016 | Houston, Texas, United States - Produced a visualization software to demonstrate different rotor vibration modes in rotordynamics. ### Mechanical Engineer @ Amec Foster Wheeler Jan 2011 – Jan 2015 | Houston, Texas, United States - Developed a dual unit conversion software used by hundreds of engineers in the EPC industry. ### Research Assistant @ University of Missouri-Columbia Jan 2006 – Jan 2011 | Columbia, Missouri, United States - Led Caterpillar research and development project of an industrial valve system. Designed simulation models and developed an advanced control system in Simulink and Matlab. Improved the model accuracy with lab data and the controller achieved accurate and fast response flow control. ## Education ### Doctor of Philosophy - PhD in Mechanical Engineering University of Missouri-Columbia ### Bachelor's degree in Measurement, Control Technology & Instrument Shanghai Jiao Tong University ## Contact & Social - LinkedIn: https://linkedin.com/in/changli3678 --- Source: https://flows.cv/changli JSON Resume: https://flows.cv/changli/resume.json Last updated: 2026-04-10