[Remote] Backend Lead Developer

Note: The job is a remote job and is open to candidates in USA. Sls.guru is seeking a strong Backend Lead Developer to join their personalization engineering team for a large enterprise hospitality platform. The role involves leading backend architecture and technical design for personalization platform services, building cloud-native backend APIs, and mentoring engineers while driving high-quality execution across complex backend systems.ResponsibilitiesLead backend architecture and technical design for personalization platform servicesDesign and build cloud-native backend APIs using TypeScript, Node.js, AWS Lambda, and API GatewayWork on complex serverless workflows using AWS Step Functions and related AWS servicesBuild and maintain services that support personalized experiences, eligibility rules, recommendations, and workflow-driven platform capabilitiesHelp migrate, modernize, and improve backend services in the cloudWork with databases and search systems such as DynamoDB, DocumentDB/MongoDB-style databases, OpenSearch, or ElasticsearchDefine backend patterns, engineering standards, and reusable approaches for the teamReview designs and code with a focus on reliability, scalability, maintainability, and production readinessCollaborate closely with frontend engineers, product managers, QA, and other engineering teamsImprove observability, debugging, reliability, and operational quality of backend servicesMentor engineers technically and help the team make better architectural decisionsSkills7+ years of backend engineering experienceStrong hands-on experience with TypeScript and Node.jsDeep understanding of Node.js backend development, including async execution, event loop behavior, API performance, error handling, and production debuggingStrong experience building APIs using AWS Lambda and API GatewayStrong experience with AWS serverless architectureExperience with AWS Step Functions or similar workflow orchestration systemsExperience with infrastructure-as-code tools such as TerraformExperience with Serverless Framework or similar deployment frameworksStrong understanding of NoSQL databases, especially DynamoDB or similar systemsGood understanding of database design, indexing, query patterns, and performance tradeoffsStrong distributed systems fundamentals: retries, idempotency, partial failure, timeouts, consistency, scaling, and observabilityAbility to explain complex technical concepts clearly to both technical and non-technical stakeholdersStrong ownership mindset with the ability to work independently and drive initiatives from concept through deliveryWe value engineers who can operate effectively in evolving environments, proactively identify opportunities, and help shape technical direction while collaborating closely with stakeholdersOpenSearch or ElasticsearchDynamoDB, MongoDB-compatible databases (including DocumentDB)Recommendation systems or personalization platformsEvent-driven architectureLarge-scale enterprise platform experienceExperience modernizing or migrating services to the cloudCompany OverviewYour guide on the journey to cloud excellence. It was founded in 2017, and is headquartered in Wilmington, Delaware, USA, with a workforce of 51-200 employees. Its website is https://serverlessguru.com.