Java Engineer (API, Vertex)

Computer Task Group, Inc • Phoenix, AZ

2d • Onsite

About The Position

CTG is seeking a Java Engineer (API, Vertex) to join our client’s team. This role will focus on designing, developing, and supporting high-performance backend services using Java, Vert.x, reactive programming, and modern cloud-native technologies. The ideal candidate will have strong experience building microservices, event-driven architectures, REST APIs, and distributed systems.

Requirements

• 6+ years of experience in Java-based backend development.
• Strong hands-on experience with Vert.x and reactive programming paradigms.
• Strong understanding of microservices and event-driven architecture.
• Experience with REST APIs, asynchronous processing, and distributed systems.
• Experience with messaging systems such as Kafka, RabbitMQ, or similar technologies.
• Experience with Docker and Kubernetes.
• Exposure to AI-assisted development tools.
• Strong problem-solving skills and ability to work effectively in an Agile environment.
• Prior client experience with data ingestion to Lumi from databases is required.
• Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

Nice To Haves

• Prior Lumi ingestion experience is highly preferred.
• Experience developing enterprise applications using Java/JEE technology stacks.
• Experience with dependency injection, inversion of control, functional programming, test-driven development, and transaction management frameworks.
• Experience supporting large-scale application integrations and cloud-native solutions.
• Strong collaboration skills with development, architecture, and business teams.

Responsibilities

• Develop and support enterprise Java applications and backend services.
• Build scalable APIs and microservices using Java and Vert.x reactive frameworks.
• Design and implement event-driven solutions using messaging platforms such as Kafka or RabbitMQ.
• Develop asynchronous processing solutions and integrations within distributed environments.
• Support data ingestion solutions, including Lumi integrations from enterprise databases.
• Collaborate with Agile teams to deliver high-quality software solutions.
• Apply DevOps practices using Docker, Kubernetes, and CI/CD methodologies.
• Utilize AI-assisted development tools such as GitHub Copilot to improve productivity and code quality.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level