Kejian Tong
Software Engineer | Agentic AI | Backend & Full-Stack | Distributed Systems | AI/ML
- Role
- Software Engineer at Lennar
- Location
- Seattle, WA, US
- LinkedIn followers
- 500 followers
About Kejian Tong
Software Engineer specializing in backend and full-stack development, with hands-on experience building and operating cloud-native, distributed systems in production environments.I have worked as a full-time Software Engineer at Lennar and Barclays, where I built backend services, APIs, and end-to-end features using TypeScript, Java, Python, and modern web technologies, deployed on AWS and Azure. My work includes delivering user-facing functionality backed by scalable services and reliable cloud infrastructure.My experience spans RESTful service design, distributed and event-driven architectures, frontend–backend integration, CI/CD pipelines, and production reliability improvements, including integrating LLM-powered services and agent-based workflows into backend systems to support automation and intelligent features. I have owned features end-to-end — from requirements and system design, to implementation, testing, deployment, and post-release monitoring.I care deeply about code quality, system reliability, and change safety, and I have contributed to improving latency, operational stability, and developer productivity in real production systems.Previously, I earned my M.S. in Computer Science from Northeastern University and served as a Graduate Teaching Assistant, supporting large-scale courses and mentoring students on data structures, algorithms, and software engineering fundamentals.I am currently seeking Software Development Engineer roles, where I can contribute to building scalable backend and full-stack systems, learn from strong engineering teams, and grow into a high-impact software engineer.
Experience
Software Engineer
Jan 2024 — Present · US
Built full-stack, event-driven cloud applications using TypeScript, React, Node.js, Azure Functions, Service Bus, and Cosmos DB, delivering real-time data by integrating multiple enterprise systems.
Education
Northeastern University
Master of Science - MS, Computer Science
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