{"schemaVersion":"jobsearcher.job.v1","id":"7e7bebe33233dd94398fd452","url":"https://jobsearcher.com/jobs/7e7bebe33233dd94398fd452","canonicalUrl":"https://jobsearcher.com/jobs/7e7bebe33233dd94398fd452","title":"Java BackEnd Developer","description":"Company Description\n\nFor More Open Positions Visit us at:\nhttp://recruiting.woongjininc.com/\n\nOur Mission\n\nWOONGJIN, Inc. is a rapidly growing team who provides a range of unique, exceptional, and enhanced services to our clients. We have a strong moral code that includes the service of goodness without expectations of reward. We are motivated by the sense of responsibility and servant leadership.\nBenefits\nMedical Insurance\nVision Insurance\nDental Insurance\n401(k)\nPaid Sick hours\n\nJob Description\n\nRole Summary\nThe Java Backend Developer will design and implement core backend enhancements for the BYOD Enhancement Project, enabling BYOD(Bring Your Own Device) to operate as a highly available primary service with resilient fallback to WMP and Global BYOD APIs.\nKey Responsibilities\nDesign and implement a local BYOD database with indexing, data freshness tracking, and retention policies\nDevelop hybrid query logic: primary local DB lookup with configurable fallback to WMP API and Global BYOD API\nImplement SFTP-based batch ingestion (CSV sync, validation, reconciliation, error handling)\nEnhance backend services including data schema, scheduling framework, and API endpoints\nImplement monitoring, logging, metrics, and alerting for availability, performance, and API usage\nEnsure fault-tolerant design and seamless fallback between BYOD, WMP, and Global APIs\n\nQualifications\n\n5+ years of Java backend development experience\nStrong experience with RESTful APIs, database design (RDBMS), and batch processing\nExperienced Java Developer with the following areas:\nMust Have: Core Java (8+/11+/17+), Spring Boot, Spring Cloud, Spring MVC, Spring Security, RESTful API Design, Microservices Architecture, Message Brokers (Kafka/RabbitMQ), JPA/Hibernate, Docker, Kubernetes, CI/CD Pipelines (Jenkins/GitLab CI/GitHub Actions)\nApplication Server Expertise:\nOracle WebLogic Server: Deployment, configuration, clustering, and administration.\nApache Tomcat: Setup, deployment, tuning, and management.\nApplication server troubleshooting and performance optimization\nLinux Server Deployment & Administration\nLinux server setup, configuration, and management (RHEL, CentOS, Ubuntu).\nShell scripting and automation.\nApplication deployment and release management on Linux environments.\nServer monitoring, log analysis, and troubleshooting\nStrong expertise in database technologies:\nOracle Database: PL/SQL, Oracle Performance Tuning, Oracle RAC, Partitioning, Indexing Strategies, AWR/ASH Reports, Execution Plan Analysis.\nPostgreSQL: Query Optimization, pg_stat_statements, Partitioning, Replication, pgAdmin.\nOther Databases: MySQL, MongoDB, SQL Server, Redis, Cassandra.\nBatch Processing & Scheduling:\nSpring Batch, Quartz Scheduler, Apache Airflow.\nETL processes and data pipeline development.\nCron jobs, scheduled tasks, and job orchestration.\nLarge-scale data processing and bulk operations\nExperience building high-availability, resilient backend services\nHands-on experience with logging, monitoring, and performance tuning\nPreferred Qualifications\nExperience with telecom/carrier integrations or large-scale device data systems\nFamiliarity with cloud environments and distributed system design\nExperience handling external API dependency and fallback strategies\n\nAdditional Information\n\nAll your information will be kept confidential according to EEO guidelines.\n*** NO C2C ***","company":"Woongjin","rawCompany":"woongjin","city":"Ridgefield Park","state":"NJ","isRemote":false,"isActive":false,"createdAt":"2026-04-14T10:58:58.910Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Java BackEnd Developer","description":"Company Description\n\nFor More Open Positions Visit us at:\nhttp://recruiting.woongjininc.com/\n\nOur Mission\n\nWOONGJIN, Inc. is a rapidly growing team who provides a range of unique, exceptional, and enhanced services to our clients. We have a strong moral code that includes the service of goodness without expectations of reward. We are motivated by the sense of responsibility and servant leadership.\nBenefits\nMedical Insurance\nVision Insurance\nDental Insurance\n401(k)\nPaid Sick hours\n\nJob Description\n\nRole Summary\nThe Java Backend Developer will design and implement core backend enhancements for the BYOD Enhancement Project, enabling BYOD(Bring Your Own Device) to operate as a highly available primary service with resilient fallback to WMP and Global BYOD APIs.\nKey Responsibilities\nDesign and implement a local BYOD database with indexing, data freshness tracking, and retention policies\nDevelop hybrid query logic: primary local DB lookup with configurable fallback to WMP API and Global BYOD API\nImplement SFTP-based batch ingestion (CSV sync, validation, reconciliation, error handling)\nEnhance backend services including data schema, scheduling framework, and API endpoints\nImplement monitoring, logging, metrics, and alerting for availability, performance, and API usage\nEnsure fault-tolerant design and seamless fallback between BYOD, WMP, and Global APIs\n\nQualifications\n\n5+ years of Java backend development experience\nStrong experience with RESTful APIs, database design (RDBMS), and batch processing\nExperienced Java Developer with the following areas:\nMust Have: Core Java (8+/11+/17+), Spring Boot, Spring Cloud, Spring MVC, Spring Security, RESTful API Design, Microservices Architecture, Message Brokers (Kafka/RabbitMQ), JPA/Hibernate, Docker, Kubernetes, CI/CD Pipelines (Jenkins/GitLab CI/GitHub Actions)\nApplication Server Expertise:\nOracle WebLogic Server: Deployment, configuration, clustering, and administration.\nApache Tomcat: Setup, deployment, tuning, and management.\nApplication server troubleshooting and performance optimization\nLinux Server Deployment & Administration\nLinux server setup, configuration, and management (RHEL, CentOS, Ubuntu).\nShell scripting and automation.\nApplication deployment and release management on Linux environments.\nServer monitoring, log analysis, and troubleshooting\nStrong expertise in database technologies:\nOracle Database: PL/SQL, Oracle Performance Tuning, Oracle RAC, Partitioning, Indexing Strategies, AWR/ASH Reports, Execution Plan Analysis.\nPostgreSQL: Query Optimization, pg_stat_statements, Partitioning, Replication, pgAdmin.\nOther Databases: MySQL, MongoDB, SQL Server, Redis, Cassandra.\nBatch Processing & Scheduling:\nSpring Batch, Quartz Scheduler, Apache Airflow.\nETL processes and data pipeline development.\nCron jobs, scheduled tasks, and job orchestration.\nLarge-scale data processing and bulk operations\nExperience building high-availability, resilient backend services\nHands-on experience with logging, monitoring, and performance tuning\nPreferred Qualifications\nExperience with telecom/carrier integrations or large-scale device data systems\nFamiliarity with cloud environments and distributed system design\nExperience handling external API dependency and fallback strategies\n\nAdditional Information\n\nAll your information will be kept confidential according to EEO guidelines.\n*** NO C2C ***","datePosted":"2026-04-14T10:58:58.910Z","dateModified":"2026-04-14T10:58:58.910Z","hiringOrganization":{"@type":"Organization","name":"Woongjin","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Ridgefield Park","addressRegion":"NJ","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"7e7bebe33233dd94398fd452"},"url":"https://jobsearcher.com/jobs/7e7bebe33233dd94398fd452"}}