# Ronny L. > Engineering @ Twilio Location: San Francisco, California, United States Profile: https://flows.cv/ronnyl Ronny Lim is a professional application developer with broad industry experience. His programming journey began during his bachelor's studies in electrical engineering, where he wrote assembly code to control microcontrollers. Over time, he honed his expertise in embedded systems, developing robotic applications using higher-level programming languages. Seeking to broaden his technical expertise, Ronny transitioned into the financial services industry, where he built internal reporting applications leveraging modern programming languages and databases. Today, he works at a leading internet company, developing scalable application services designed to handle massive datasets efficiently. ## Work Experience ### Principal Software Engineer @ Twilio Jan 2022 – Present | San Francisco, California • Lead cross-functional initiatives to ensure compliance, security, and wanted communications for all outgoing messages originating from Twilio platforms. ### Technical Lead @ Yelp Jan 2020 – Jan 2022 | San Francisco, California • Led the development of the cross-channel notification platform at Yelp that sends millions of notifications daily. Machine learning models power the platform to optimize user activity and engagement. ### Senior Software Developer @ PIMCO Jan 2018 – Jan 2020 | Newport Beach, California • Designed and developed scalable technical solutions for efficient data storage. My responsibilities included improving reliability, reducing processing time, and writing production-level code for data analytics applications. • Provided technical support for the analytic team by converting Statistical Analysis System (SAS) codes to Python, backfilling historical data, and investigating data quality issues. ### Senior Software Developer @ JPMorgan Chase & Co. Jan 2016 – Jan 2018 | Newark, Delaware • Led development of client-server applications that process millions of financial records across multiple business lines to generate variance analysis and internal reports on risk-weighted assets. • Improved application performance by optimizing application code, caching techniques, and implementing parallel processing. • Supervised junior developers on technical difficulties and performed intensive code reviews. ### Software Developer @ INVIDI Technologies Jan 2015 – Jan 2016 | Princeton, New Jersey • Developed distributed applications to control millions of set-top boxes for delivering targeted TV advertising. • Led software design sessions to promote creating maintainable, reusable, adaptable, and high-quality code. • Assisted Quality Assurance (QA) engineers in reviewing test plans and performing various tests. ### Embedded Software Engineer @ Vislink Technologies Jan 2014 – Jan 2015 | Mt. Olive, New Jersey • Developed applications on embedded Linux computers to control wireless transmitters and receivers. • Worked in a team of three to develop C++ libraries to support radio frequency control, network configuration, packet diversity, and video decoder. • Revamped user interface of receiver products with modern development tools. ### Application Developer @ Rutgers University Jan 2012 – Jan 2014 | New Brunswick, New Jersey • Developed Robot Assisted Bridge Inspection Tool (RABIT) system for bridge deck assessment. • Developed applications for autonomous navigation and real-time data collection systems. ### Embedded Control Engineer @ Altaeros Jan 2011 – Jan 2012 | Boston, Massachusetts • Developed applications on Texas Instrument processor for autonomous Airborne Wind Turbine (AWT). • Implemented communication protocols for data transfer between microcontroller and sensors. ### Research Assistant @ Oklahoma State University Jan 2009 – Jan 2011 | Stillwater, Oklahoma • Proposed a RObotic Crack Inspection and Mapping (ROCIM) system for automated and accurate concrete inspection. • Developed a small-scale research platform for intelligent transportation systems using wireless sensor networks, indoor GPS, and remote control cars. • Published academic papers for both conferences and journals. ## Education ### Master of Science in Electrical Engineering Oklahoma State University ### Master of Science in Computer Science Georgia Institute of Technology ### Bachelor's degree in Electrical Engineering Universitas Pelita Harapan ## Contact & Social - LinkedIn: https://linkedin.com/in/ronny-l-1a6a9231 --- Source: https://flows.cv/ronnyl JSON Resume: https://flows.cv/ronnyl/resume.json Last updated: 2026-04-12