Software Engineer - Platform - Ruby on Rails Exp.

Our client, a growing Fintech firm based in Boston is looking for a Platform Software Engineer to join the team.  As a member of our platform team, you will be building and scaling production web applications for a fintech platform. SkillsBuild and scale production web infrastructure.Manage systems with complex domain logic and concurrent state.Work on architecture optimization to help scale account capacity.Tech StackRuby on Rails, Stimulus, React, PostgreSQL, LinuxOpen-source coding agents + local LLMs Requirements2+ years of experience building production web applicationsDemonstrated ability to understand systems with complex domain logic and concurrent, order-sensitive states.Strong understanding of multi-processing and multi-threading usageProficiency in Ruby on Rails or similar MVC frameworksStrong SQL skills: able to write complex multi-table queries, understand query plans, and data integrity1+ years of experience working in a Linux environmentAbility to handle common command-line utilities and Unix process managementComfortable with bash scriptingExperience in a fintech