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@carlzhang
I am a Senior Software Engineer specializing in Go microservices and real-time data systems.
I am a Senior Software Engineer focused on designing and implementing scalable, high-performance microservices and backend systems using Go (Golang). I build real-time data pipelines, event-driven architectures, and robust API services that prioritize reliability and maintainability.
Across fintech, analytics, and streaming domains I have improved API response times by 25%, increased system throughput by 30%, and helped platforms achieve high availability (up to 99.99%+). I implement automated testing (over 90% code coverage), observability with Prometheus and Grafana, and cost optimizations for cloud storage.
I embrace cloud-native technologies, container orchestration, and accessibility best practices (WCAG 2.0 AA), and I enjoy delivering end-to-end solutions—from backend microservices and data pipelines to React/Angular operational dashboards—while driving measurable operational and business improvements.
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Work history, roles, and key accomplishments
Designed and implemented Go-based streaming and workflow platforms with Kafka and Azure Functions, reducing API response times by 25% and improving throughput by 30%. Instrumented services with Prometheus/Grafana and automated tests to cut incident response times 45% and achieve >90% test coverage.
Notable
Mar 2023 - Jul 2024 (1 year 4 months)
Built secure, high-throughput ML analytics data platforms with Go, Spark, and Airflow, achieving 99.99% uptime and processing over 5M daily events. Developed reactive ETL workflows and led accessibility improvements that increased usability by 20%.
Created low-latency account services with Go and .NET Core achieving 99.999% uptime for millions of users and architected distributed pipelines that increased throughput 35%. Enabled zero-downtime deployments and improved test automation to reduce regression cycles 40%.
Engineered scalable financial data services with Go and Java on Azure, authoring RESTful and gRPC APIs to accelerate partner integration. Integrated Prometheus/Grafana monitoring to reduce incident response times by 45%.
CAST Group of Companies
May 2017 - Aug 2018 (1 year 3 months)
Developed interactive React/Redux applications with D3.js visualizations that increased user engagement 30% and optimized front-end performance. Containerized services with Docker and orchestrated deployments using Kubernetes to enable seamless scaling.
Degrees, certifications, and relevant coursework
Bachelor of Applied Science, Computer Engineering
2014 - 2019
Completed a Bachelor of Applied Science in Computer Engineering at the University of Toronto from February 2014 to November 2019.
Software and tools used professionally
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