{"id":3198424,"url":"https://alion.io/job/ust-lead-i-java-react-js-full-stack-cloud-engineer","title":"Lead I - Java & React.js Full-Stack Cloud Engineer","company":{"id":1774626,"name":"UST","domain":"ust.com","url":"https://alion.io/company/ust-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"RippleHire","truth_index":{"grade":"B","score":76,"open_postings":112,"ghost_share":0,"stale_share":0.946,"repost_share":0,"time_to_fill_p50_days":34,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":16500,"max_usd":41000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":74},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon Aurora","optional":false},{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon DocumentDB","optional":false},{"name":"Amazon ECS","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"AWS Step Functions","optional":false},{"name":"Azure","optional":false},{"name":"Azure DevOps","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"Docker","optional":false},{"name":"IAM","optional":false},{"name":"Java","optional":false},{"name":"Keycloak","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Redux Toolkit","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"State Management","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false},{"name":"JavaScript","optional":true},{"name":"Redux","optional":true}],"status":"closed","first_seen_at":"2026-10-23T00:00:00Z","employer_posted_date":"2026-10-24","last_verified_at":"2026-10-27T08:39:29Z","board_verified":false,"closed_at":"2026-10-27T08:39:29Z","days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"description":"Java & React.js Full-Stack Cloud Engineer\nJob Summary\nWe are looking for a skilled Full-Stack Cloud Engineer with strong hands-on expertise in Java and Spring Boot, along with React.js with TypeScript and AWS Lambda. The role involves designing and developing modern full-stack applications, containerized microservices, serverless workflows, cloud infrastructure, security integrations, CI/CD pipelines, and observability solutions on AWS.\nThe ideal candidate will bring strong proficiency across Java, Spring Boot, AWS Lambda, React.js with TypeScript, and AWS services, supported by experience across containerization, orchestration, databases, identity management, messaging, infrastructure automation, and DevOps.\nKey Responsibilities\nDesign, develop, and maintain backend microservices using Java and Spring Boot, including data services and Backend-for-Frontend (BFF) components.Develop responsive frontend applications using React.js with TypeScript, incorporating Redux Toolkit for application state management.Build and maintain serverless application components using AWS Lambda, including WebSocket event and callback processing.Work across AWS services to implement scalable cloud-based application architectures.Containerize backend services using Docker and deploy and operate workloads using Amazon ECS.Implement business workflow orchestration using AWS Step Functions.Configure and integrate API Gateway for REST and WebSocket-based application communication.Work with relational and document-oriented data stores using Aurora PostgreSQL and DocumentDB.\nImplement authentication and Single Sign-On integrations using Keycloak and Microsoft Entra ID, including enterprise Azure SSO scenarios.\nDevelop UI delivery solutions using AWS CloudFront.\nImplement event-driven and notification workflows using AWS SNS, SQS, and SES.\nApply AWS IAM and Secrets Manager for role, permission, and credential security.\nSupport infrastructure automation using CloudFormation and Shell scripting.\nConfigure application and infrastructure monitoring, logging, and ing using CloudWatch.\nUse Azure DevOps to support source control and automated build and deployment 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