Java Backend Engineer (Java/Node.js)

Role:

Java Backend Engineer (Java/Node.js)

Duration :

6+ months

Location:

SFO, CA or Dallas, TX (hybrid)

Skills:

(Java/Node, Springboot, Restful API, Microservices, Graph technologies, LLM, AWS/Google Cloud Platform)

Job Description:

8-10+ years of experience in backend development using Java and/or Node.js, with strong hands-on expertise in building scalable systems (Spring Boot / Node frameworks) Strong experience designing and developing RESTful APIs and micro services in distributed architectures Solid understanding of object-oriented design principles and design patterns (e.g., MVC, domain-driven design) Hands-on experience with graph technologies, including Neo4j, and familiarity with graph data modeling and query languages (e.g., Cypher) Experience working on Knowledge Graph or semantic systems, including ontology-driven design and entity relationships Familiarity with modern AI-driven architectures such as semantic routing, MCP servers, and LLM-integrated systems Strong experience with real-time or micro-batch data processing and event-driven architectures Proficiency with CI/CD pipelines and source control (Git) in enterprise environments Experience with cloud platforms (AWS/Google Cloud Platform) and containerized deployments Solid understanding of data modeling (relational and/or graph-based) and data integration patterns Experience working in Agile/Scrum environments with strong collaboration and problem-solving skills Nice to have skills Experience with Graph + AI patterns (e.g., Graph

RAG, LLM

+ Knowledge Graph integration) Exposure to Salesforce ecosystem (APIs, Data Cloud, or platform integrations) Experience with ontology management tools and semantic layer design Familiarity with vector databases and embedding-based retrieval systems Experience with data governance, metadata management, or enterprise data platforms Exposure to streaming platforms or advanced observability frameworks for distributed systems