Back End Developer Job at Pacer Group, Philadelphia, PA

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  • Pacer Group
  • Philadelphia, PA

Job Description

We are seeking an experienced Senior Java Backend Developer to join the Content Discovery Team, powering personalization, recommendations, and content discovery features for a global entertainment platform.

You will work on high-performance, IO-heavy backend systems that integrate data from multiple upstream and downstream services to deliver real-time, personalized responses.

Responsibilities

  • Design, develop, and maintain Java-based backend services for personalization and content discovery.
  • Enhance features like MyList, PlayList, Continue Watching, Next Episode, and new personalization capabilities.
  • Work with IO-heavy, non-blocking web services to handle large-scale data integrations.
  • Implement business logic and API transformations for personalized content delivery.
  • Collaborate with product managers, architects, and global teams to deliver solutions.
  • Write unit tests, perform code reviews, and ensure high code quality.
  • Optimize performance for scalable, distributed systems.
  • Support CI/CD pipelines and work closely with DevOps teams for deployments.

Required Skills

  • 10+ years of experience in Java backend development.
  • Strong experience with RESTful Web Services, API development, and microservices architecture.
  • Expertise in Java frameworks such as Netty, Armeria, or similar asynchronous, non-blocking frameworks (Spring WebFlux, Vert.x).
  • Deep understanding of IO-heavy, event-driven systems.
  • Proficiency in Spring Boot, Spring Cloud, and related technologies.
  • Strong experience with unit testing frameworks (JUnit, Mockito) and code quality practices.
  • Experience working with upstream/downstream integrations and handling large-scale data.
  • Familiarity with cloud environments (AWS preferred) and containerization (Docker, Kubernetes).
  • Knowledge of GitOps, CI/CD pipelines (Jenkins, Concourse) and automation tools.
  • Hands-on experience with messaging systems (Kafka, RabbitMQ).

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