Full Stack Engineer

Description:We are seeking a strong Senior Node.js Developer with good technical expertise, to be responsible for the backend development distributed platform for one of the largest world-leading retailers. You will be working as a key member of this collaborative team with a group of experts recognized around the world. This is an excellent opportunity to play a role as a key contributor in creating the next generation of network-centric distributed and scalable architectures.Responsibilities:Design, develop, and maintain scalable backend services following clean architecture and best practicesBuild and optimize data models and queries ensuring performance, consistency, and reliabilityPrepare functional requirements and technical/design documentation for new features and system enhancementsAnalyze performance bottlenecks, identify root causes, and propose scalable and cost-effective improvementsOwn the full backend lifecycle—from development and testing to deployment and monitoringWork with the incoming support request chain, performing RCA and driving issues to resolutionCollaborate closely with stakeholders to deliver end-to-end featuresWrite clear technical documentation and contribute to architectural decisions and code reviewsContinuously improve system performance, scalability, and reliability while reducing technical debtTake full ownership of testing strategy and execution (unit, integration, and other relevant testing) using Jest and complementary testing approaches in a QA-less environment.Min requirements:5 years of professional software development experience, with a strong focus on backend systemsProven hands-on experience with Node.js and Express.js in production environmentsStrong proficiency in SQL, including schema design, query optimization, and performance tuningPractical experience with PostgreSQL and/or CockroachDBSolid experience building and operating systems on AWS, including: Lambda, SQS, EventBridge, S3, ECR, Certificate Manager, Secrets Manager, Systems ManagerExperience designing, maintaining, and improving CI/CD pipelinesFamiliarity with observability, monitoring, and log aggregation, particularly SplunkExperience designing scalable, reliable, and secure APIs and backend servicesStrong understanding of cloud-native and event-driven architecturesAbility to work independently with minimal supervisionComfortable taking ownership of features from design through productionCapable of making architectural and technical decisionsExperience reviewing code and providing constructive feedbackProactive in identifying technical debt and proposing improvementsStrong problem-solving and analytical mindsetClear and effective communication skillsWe offer:Opportunity to work on bleeding-edge projectsWork with a highly motivated and dedicated teamCompetitive salaryFlexible scheduleBenefits package - medical insurance, sportsCorporate social eventsProfessional development opportunitiesWell-equipped officeAbout us:Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.