Senior Java Full-Stack Engineer (12-Month Contract)

Intone Networks Inc.; Weehawken (NJ); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Intone Networks Inc. in Weehawken, NJ is seeking a Senior Full Stack Java Engineer for a 12-month contract to build robust financial services systems.

You will design scalable distributed architectures, integrate enterprise platforms, and lead AI agent initiatives across the software lifecycle. The role requires strong Java/Spring Boot, REST, and messaging skills, with emphasis on reliability and performance.

Qualifications

• 8+ years of software engineering experience.
• Strong expertise in Java and Spring Boot.
• REST API design and development experience.
• Distributed systems architecture experience.
• Kafka or IBM MQ messaging experience.
• Enterprise platforms, lending or banking integrations.
• API design and enterprise architecture knowledge.
• AI agents and agentic software engineering experience.
• Familiarity with Java-based AI frameworks (Spring AI, LangChain4j, Semantic Kernel, MCP).

Responsibilities

• Design and develop full stack Java applications with Spring Boot and REST APIs.
• Build and maintain distributed systems focusing on reliability and performance.
• Integrate enterprise platforms, lending systems, and banking infrastructure.
• Architect and implement system integrations using messaging technologies.
• Develop AI agents and agentic software engineering solutions.
• Collaborate with cross-functional teams to translate business requirements into technical solutions.

Skills

Java

Spring Boot

REST APIs

Distributed systems

Messaging (Kafka/IBM MQ)

Enterprise integration

AI agents

API design

Java AI frameworks

Tools

Spring AI

LangChain4j

Semantic Kernel

MCP

Job description

Intone Networks Inc. in Weehawken, NJ is seeking a Senior Full Stack Java Engineer for a 12-month contract to build robust financial services systems.

You will design scalable distributed architectures, integrate enterprise platforms, and lead AI agent initiatives across the software lifecycle. The role requires strong Java/Spring Boot, REST, and messaging skills, with emphasis on reliability and performance.