Lead Ruby Developer - Onsite (Chicago, IL)
Adzuna
📍 Schiller Park, Cook County, United States
via Adzuna API (US)
Full-TimeOn-Site
Description
Lead Ruby Developer Duration: 12 Months Location: Chicago, IL Key Responsibilities & Required Technical Expertise: 12 years of strong experience on Ruby. Deep knowledge of Ruby MRI internals (GIL, memory model, object allocation) Ruby MRI garbage collector (mark & sweep, generational GC) Strong experience with Rails internals (ActiveRecord, Arel, middleware stack) Ability to optimize slow queries, N1 issues, and memory leaks Experience with multi-threaded / concurrent Ruby (Puma, Sidekiq tuning…
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