Chiatzen W.
Chiatzen W.

AI Infrastructure / Backend Engineer

Actively looking · Member since 30 Sep 2026
Location
Yantai, China
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Junior

About

Professional summary

I am an aspiring AI infrastructure and backend engineer with a Computer Science Honours BSc from the University of Toronto and upcoming Master of Engineering studies in Electrical and Computer Engineering at the University of Waterloo.

I build backend services and stateful AI agent workflows using technologies such as OpenAI APIs, gRPC, GraphQL, SQLc, Python, Go, and SQL. My work focuses on reliable agent orchestration, RAG systems, evaluation pipelines, and production-oriented API development.

I have hands-on distributed systems experience from internships and research, including cloud scheduler development, Kubernetes-based test automation, RDMA networking benchmarks, and Spark Shuffle transport integration. I am comfortable working with Linux, Docker, Kubernetes, TCP/UDP networking, and high-performance data-transfer systems.

I have also applied machine learning to infrastructure problems, training LSTM and KNN models on workload traces for dynamic resource scheduling. My project work includes multi-agent data exchange systems, ETL verification workflows, and speculative decoding research for large language models.

I value measurable engineering improvements and use evaluation metrics such as precision, recall, throughput, latency, task success rate, test coverage, and cost reduction to guide iteration. I hold the Certified Kubernetes Administrator certification and am interested in AI infrastructure, distributed systems, backend engineering, and LLM serving.

Skills

24 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Data Stores

Languages & Frameworks

Libraries

Monitoring

Experience

Career history

AI Infrastructure / Backend Engineering Intern Alva.ai

Developed stateful agent workflows and backend APIs using the OpenAI API, gRPC, GraphQL, and SQLc.

Built a Prometheus-based evaluation pipeline to measure precision, recall, and task success rates, driving prompt and workflow iteration.

Research Assistant University of Toronto Far Data Lab

Built RDMA-enabled network interface benchmarks to characterize communication performance and compare it with socket-based TCP and UDP baselines.

Integrated UCX/RDMA transport into a Spark Shuffle plugin, deployed multi-node experiments, and measured throughput and latency for large-scale data transfer.

Distributed Systems Engineering Intern Huawei Technologies Canada Co., Ltd.

Developed and refactored a Huawei Cloud scheduling engine, adding trait-based resource-provisioning strategies for heterogeneous cluster workloads.

Built Kubernetes and Docker test environments and automated scheduler testing, increasing test coverage to 80%. Trained LSTM and KNN models on Azure workload traces for dynamic resource scheduling, reducing user cost by 20% at comparable performance.

Education

Learning history

University of Waterloo

Master of Engineering, Electrical and Computer Engineering

Incoming Master of Engineering student in Electrical and Computer Engineering.

University of Toronto

Bachelor of Science, Honours, Computer Science

CGPA: 3.63/4.00. Received Dean's List, Archibald Macmurchy Memorial Scholarship, and University College Special Curriculum Scholarship.

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