Contract
Sriwi Technologies
Chicago, IL
#Hiring..! #C2C #Ruby #Chicago #RubyOnRails #RailsDeveloper #BackendEngineering #NowHiring #TechJobs #ContractJobs We’re Hiring: Lead Ruby Developer (12+ Years Experience) Location: Chicago, IL (On-site – 5 Days/Week) Duration: 12+ Months Contract We are looking for a highly experienced Lead Ruby Developer to join a high-impact engineering team working on large-scale, high-performance systems. This role is ideal for someone who has deep expertise in Ruby internals and has successfully scaled enterprise-grade applications. Key Responsibilities & Expertise: We are seeking a hands-on engineer with deep mastery in: Ruby & Rails Internals 12+ years of Ruby development experience Strong understanding of MRI internals (GIL, memory model, object allocation) Ruby GC (mark & sweep, generational GC) expertise Rails internals (ActiveRecord, middleware stack, Arel) Performance tuning: N+1 queries, memory leaks, slow query optimization Concurrency...

