I will review and optimize your system architecture and performance

V
vectorfox802
V
vectorfox802
James Fox
review and optimize your system architecture and performance
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review and optimize your system architecture and performance

About this gig

16+ years in architecture with high-concurrency, distributed systems (40M users, 10K QPS). I review your code and architecture for performance bottlenecks, scalability, and security issues (SQL injection, XSS, CSRF), then deliver a prioritized fix report. Stack-agnostic - Java, Go, microservices, cloud-native all covered. Also available for system design, code review, and mentoring sessions.

  • Programming language

    • Go
    • Java

  • Backend framework

    • Spring

Get to know James Fox

James Fox

Software architect

  • FromChina
  • Member sinceOct 2026
  • Avg. response time1 hour

  • Languages

    English
Experienced software engineer and architect. 20+ years of architecture experience: more than 10 years in large-scale system architecture design and team management. Experienced in architecture and developing distributed, high-concurrency, high-availability systems handling massive data volumes. Has led the architecture design and development of online collaborative office system and e-commerce platform with 40 million registered users, 3 million daily active users, and hundreds of millions of daily visits. Solid technical foundation, in-depth into the source code of open-source frameworks.

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