About the job Sarvaha is seeking a skilled and passionate Lead Ruby Developer with a minimum of 7+ years of hands-on experience in Ruby and backend architecture. Youll work on challenging, high-performance systems and collaborate with a talented team that values quality, ownership, and clean code. What Youll Do - Build, maintain, and scale backend systems using Ruby and Ruby on Rails - Design and implement scalable APIs using Rails, Grape, and ActiveModel - Tune performance across the stack including GC, queries, jobs, and server setups - Develop, package, and publish custom Ruby gems - Optimize ActiveRecord queries & PostgreSQL indices to eliminate N+1 and improve query plans - Manage application servers (Passenger, Thin) and tune thread/process models - Own and maintain deployment pipelines, initializers, routing, and Rails engines - Profile memory usage, monitor connections, and optimize worker threads - Contribute to code reviews, mentoring, and agile development processes - Collaborate cross-functionally with frontend and DevOps teams You Bring - BE/BTech/MTech (CS/IT or MCA), with an emphasis in Software Engineering - Minimum 7 years of professional Ruby development experience - Strong proficiency in Ruby (language internals, idioms, meta-programming) - Deep knowledge of thread vs process models, connection handling, worker tuning & memory profiling - Deep knowledge of OOP principles, mixins, blocks, procs, and lambdas - Solid grasp of Rails internals: ActiveRecord, ActiveJob, ActionCable, validations, callbacks, etc. - Experience with PostgreSQL and advanced ActiveRecord tuning - Proficient in using Bundler, Rake, Rubygems, and gem building - Comfortable with tools like RVM, rbenv, and chruby Needed Soft Skills - Strong debugging and troubleshooting skills - Ownership mindset and accountability - Comfortable working in Agile teams and pair programming - Proactive in documentation and sharing knowledge - Empathetic collaborator and open to mentoring peers - Passion for clean code, performance, and continuous improvement
