Our client – a dynamic and growing technology company – is looking for an experienced Senior Ruby on Rails Engineer to join their fully remote team. This role offers the opportunity to work on sophisticated web applications across various industries, collaborating with a talented and supportive engineering team.What You’ll DoDesign, develop, and maintain backend systems using Ruby on RailsOptimize performance and scalability of existing and new featuresIntegrate front-end elements with server-side logicIdentify and resolve bottlenecks, bugs, and performance issuesCollaborate with product managers, designers, and engineers to define product directionConduct code reviews and mentor junior team membersContribute to maintaining high standards of code quality and development practicesWhat We’re Looking For5+ years of professional experience with Ruby on RailsDeep knowledge of OOP, MVC, REST, ORM, and GraphQLExpertise with common Ruby libraries and tools: Sidekiq, Devise, CarrierWave, ActiveStorage, ActionCable, PumaStrong PostgreSQL and SQL skillsExperience designing data models and APIsSolid understanding of HTML5, CSS3, and JavaScriptFamiliarity with server-side templating engines (e.g. Slim, HAML, Liquid)Proficient with Git and development tools like Bundler, RakeComfortable working in a Linux/macOS terminal environmentExcellent communication skills and a collaborative mindsetFluent/native Ukrainian speakerNice to HaveIntegration experience with Stripe, Sendgrid, Twilio, Mailchimp, DripExperience with ES6 or TypeScriptFamiliarity with CI/CD pipelines and Agile workflowsPrior experience mentoring or leading development teamsExposure to other programming languages beyond Ruby and JavaScriptBackground in a software studio or product-focused environmentWhat’s OfferedCompetitive compensationFully remote work environmentHome office stipendDiverse and engaging projectsOpportunity to work across multiple industries and technologiesHiring Process30-minute prescreen with recruiter30–45 minute initial interviewShort technical exercise60-minute exercise review (panel interview)Leadership interview(s)Final decisionRemote Work Requirements: Your workday must overlap by at least 4 hours with Los Angeles, CA (PST/PDT).