Ruby Developer

Project overviewThis project focuses on building and maintaining high-volume, complex API integrations with external partners in a domain where transactional integrity and money flows are critical.Position overviewWe are looking for a Backend Engineer with strong expertise in pure Ruby. In this role, you will design and maintain robust backend services and high-volume API integrations in a domain where transactional integrity and money flows are critical. You’ll collaborate closely with stakeholders and external partners to deliver secure, scalable solutions.Technology stackRuby (pure Ruby, not Rails-centric)RedisDockerAWS services (EC2, S3, RDS)Infrastructure-as-Code toolsResponsibilitiesDesign and implement robust backend services using RubyDevelop and maintain complex API integrations with external systemsEnsure transactional integrity and reliability in high-volume environmentsCollaborate with stakeholders and external partners to clarify requirementsContribute to infrastructure automation and deployment processesParticipate in technical design discussions and solution shapingRequirementsStrong experience with Ruby (beyond Ruby on Rails)Proven track record of delivering backend services in complex domainsExpertise in API design, integration, and third-party connectivityFamiliarity with transactional systems and reliability constraintsSolid understanding of DevOps practices and Infrastructure-as-CodeHands-on experience with AWS services (EC2, S3, RDS)Knowledge of Docker for containerizationExperience with RedisStrong analytical skills for navigating intricate business rulesClear and confident communication skills for stakeholder engagementNice to haveThin, EventMachine, SinatraExposure to Elasticsearch.Experience in financial or transactional domains.What We Offer:Vacation days: Up to 26 business days per year.10 illness/special days off per year (fully paid, no medical papers needed) for all contract typesHealth and life insurance (Luxmed)MyBenefit platform with Multisport optionInternal psychological support serviceEnglish language classes from the first working dayAccess to external learning platforms: O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal trainingFlexible workplace: work from the office, from home, or choose a hybrid optionTech Skills Mentoring ProgramOpportunities to develop as a public speaker, mentor, or technical interviewerFully paid idle (bench) when not involved in a projectCertification reimbursement (AWS, GCP, Microsoft, etc.)