Timothy L
Software Engineer II at Uber
Los Angeles, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTimothy L is a Software Engineer II based in Los Angeles with seven years of experience building distributed backend systems and real-time infrastructure for autonomous mobility at Uber. He focuses on safety-critical automation platforms that enable deployment and scaling of autonomous vehicles across production cities, bringing practical production experience to complex distributed challenges. His open-source contributions to the well-regarded Cadence orchestration engine highlight a focus on observability and resilient workflow execution, including work on tasklist metrics and host-level tagging. Timothy pairs graduate-level CS training from USC with hands-on internships in cloud infrastructure and product security at MathWorks, plus applied development for public-sector and medical research teams. Colleagues rely on him for pragmatic improvements that reduce operational risk and surface meaningful telemetry in large-scale systems. Notably, he blends low-latency systems thinking with an attention to monitoring that helps keep long-running workflows auditable and robust.
7 years of coding experience
3 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at University of Southern CaliforniaShanghai SMIC Private School
English, Chinese
Github Skills (10)
cadence10
distributed-systems10
go10
orchestration10
metric10
amazon-elasticsearch9
elasticsearch-api9
aws-elasticsearch9
elasticsearchquery9
elasticsearch9
Programming languages (6)
Github contributions (5)
cadence-workflow/cadence
Jun 2022 - Apr 2025
Cadence is a distributed, scalable, durable, and highly available orchestration engine to execute asynchronous long-running business logic in a scalable and resilient way.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:115 reviews, 118 PRs, 64 pushes in 2 years 9 months
Contributions summary:Timothy primarily contributed to the development and improvement of the Cadence workflow engine. They focused on implementing tasklist traffic metrics for decision tasks, activity tasks, and forwarded tasklists. Their work involved adding new metrics, refactoring existing ones, and fixing related bugs, demonstrating a focus on monitoring and improving the system's observability. Furthermore, the user added a hostname tag to metrics and services and addressed condition problems.
cadenceresilientorchestration-engineservice-buslogic
timl3136/cadence-client
Jun 2023 - Aug 2024
Framework for authoring workflows and activities running on top of the Cadence orchestration engine.
Contributions:125 pushes, 14 branches in 1 year 1 month
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