Senior Java Backend Engineer

دوام كامل في DICETEK LLC في UAE
نُشرت يوم February 24, 2025

تفاصيل الوظيفة

Roles and responsibilities We are seeking a highly experienced Senior Java Backend Resource with extensive experience in developing Payment Gateway solutions. The ideal candidate will have a strong background in Java, EJB, Microservices, MVC Framework, Oracle and experience in building highly scalable, high-transactional systems. Responsibilities

  • Design, develop and maintain a highly scalable, high-transactional Payment Gateway solution using Java, J2EE, EJB, Microservices, MVC Framework.
  • Develop and maintain SOAP/RESTful APIs for Payment Gateway integration with third-party vendors and clients.
  • Ensure the reliability, availability, and performance of the Payment Gateway solution through continuous monitoring, testing, and improvement.
  • Collaborate with cross-functional teams to gather requirements and develop solutions that meet the needs of the business and clients.
  • Maintain high standards of quality for code, documentation, and other deliverables.
  • Proactively identify and resolve issues related to Payment Gateway operations.
  • Troubleshoot and debug applications.
  • Stay up-to-date with emerging technologies and trends in Payment Gateway solutions and implement them in the development process as appropriate.
Requirements
  • Solid experience in developing Payment Gateway solutions using Java, J2EE, EJB, Microservice and MVC Framework.
  • Extensive experience in developing SOAP/RESTful APIs for Payment Gateway integration with third-party vendors and clients.
  • Good working knowledge of design patterns & OOAD.
  • Strong understanding of Payment Gateway architecture, including encryption, tokenization, and security standards.
  • Solid understanding of software development principles and design patterns.
  • Strong proficiency with Oracle SQL.
  • Experience with Agile, build management, continuous integration, continuous delivery, data structures/algorithms.
  • Excellent problem-solving and troubleshooting skills.
  • Experience with payment processing.
  • Knowledge of distributed systems and memory and performance optimization.
  • Excellent communication and collaboration skills.
  • Ability to work in a fast-paced, dynamic environment with multiple priorities and deadlines.
Desired candidate profile 1. Core Java Expertise
  • Deep knowledge of Java : Expertise in Java SE and Java EE, understanding object-oriented programming (OOP) principles, multithreading, and memory management.
  • Concurrency & Multithreading : Knowledge of Java’s concurrency utilities (e.g., ExecutorService, CountDownLatch, Semaphore) and ability to write thread-safe code.
  • Java Memory Management : Understanding JVM internals, garbage collection, heap and stack memory, and performance tuning.
  • Java Libraries & Frameworks : Proficiency with commonly used Java libraries and frameworks like Spring , Spring Boot , Hibernate , JPA (Java Persistence API) , and Apache Camel .
2. Backend Frameworks & Technologies
  • Spring Framework : Extensive experience with Spring Boot , Spring MVC , Spring Security , Spring Cloud for building scalable microservices and enterprise-level applications.
  • Microservices Architecture : Designing, developing, and deploying microservices with Java using tools like Spring Cloud , Docker , and Kubernetes .
  • RESTful APIs : Designing and implementing scalable and secure RESTful services, including API documentation (e.g., Swagger/OpenAPI ).
  • WebSockets : Understanding real-time communication protocols and implementing WebSocket-based solutions where needed.
3. Database & Data Management
  • Relational Databases : Proficiency in SQL and experience with relational databases like MySQL , PostgreSQL , or Oracle .
  • NoSQL Databases : Familiarity with NoSQL databases like MongoDB , Cassandra , Redis , or Elasticsearch for high-volume and low-latency applications.
  • ORM Frameworks : Deep understanding of Hibernate , JPA , or MyBatis for object-relational mapping and database interaction.
  • Database Optimization : Experience in query optimization, indexing, and database schema design.
4. Cloud & DevOps
  • Cloud Platforms : Experience with AWS , Azure , or Google Cloud Platform (GCP) for hosting backend services, serverless computing, and storage.
  • CI/CD : Strong understanding of Continuous Integration/Continuous Deployment (CI/CD) pipelines using tools like Jenkins , GitLab CI , or CircleCI .
  • Containers & Orchestration : Proficiency in Docker , and Kubernetes for containerization, orchestration, and microservices deployment.
  • Monitoring & Logging : Implementing application monitoring and logging solutions using tools like Prometheus , Grafana , ELK Stack (Elasticsearch, Logstash, Kibana), or Splunk .
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