Ledgent Technology · 16 hours ago
Java Backend Developer (4 weeks)
Ridgefield Park, NJ
Full-time
Onsite
Senior Level
5+ years expLedgent Technology is seeking a Java Backend Developer for a short-term project. The role involves designing and implementing backend enhancements for the BYOD Enhancement Project, focusing on creating a resilient service architecture and ensuring reliable data management and API functionality.
Staffing & Recruiting
Hiring Manager
Melanie Delaney
Responsibilities
Design and implement a local BYOD database with indexing, data freshness tracking, and retention policies
Develop hybrid query logic: primary local DB lookup with configurable fallback to WMP API and Global BYOD API
Implement SFTP-based batch ingestion (CSV sync, validation, reconciliation, error handling)
Enhance backend services including data schema, scheduling framework, and API endpoints
Implement monitoring, logging, metrics, and alerting for availability, performance, and API usage
Ensure fault-tolerant design and seamless fallback between BYOD, WMP, and Global APIs
Qualification
Required
5+ years of Java backend development experience
Strong experience with RESTful APIs, database design (RDBMS), and batch processing
Experienced Java Developer with the following areas: Must 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)
Application Server Expertise: Oracle WebLogic Server: Deployment, configuration, clustering, and administration
Apache Tomcat: Setup, deployment, tuning, and management
Application server troubleshooting and performance optimization
Linux Server Deployment & Administration: Linux server setup, configuration, and management (RHEL, CentOS, Ubuntu)
Shell scripting and automation
Application deployment and release management on Linux environments
Server monitoring, log analysis, and troubleshooting
Strong expertise in database technologies: Oracle Database: PL/SQL, Oracle Performance Tuning, Oracle RAC, Partitioning, Indexing Strategies, AWR/ASH Reports, Execution Plan Analysis
PostgreSQL: Query Optimization, pg_stat_statements, Partitioning, Replication, pgAdmin
Other Databases: MySQL, MongoDB, SQL Server, Redis, Cassandra
Batch Processing & Scheduling: Spring Batch, Quartz Scheduler, Apache Airflow
ETL processes and data pipeline development
Cron jobs, scheduled tasks, and job orchestration
Large-scale data processing and bulk operations
Experience building high-availability, resilient backend services
Hands-on experience with logging, monitoring, and performance tuning
Preferred
Experience with telecom/carrier integrations or large-scale device data systems
Familiarity with cloud environments and distributed system design
Experience handling external API dependency and fallback strategies
Company
Ledgent Technology
Ledgent Technology, a business line of Roth Staffing Companies, utilizes proven processes and their robust professional network to place qualified technology professionals in contract, contract-to-hire, direct-hire roles and project teams throughout the US.
501-1000 employees
Funding
Current Stage
Late StageCompany data provided by crunchbase