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Java Backend Engineer

Xforiainc — United States · Posted ~5 hours ago

Senior Full-time

Skills

Java Spring Boot REST APIs Distributed systems SQL/NoSQL databases Concurrency Backend architecture Spring Cloud Kafka RabbitMQ PostgreSQL MongoDB Cassandra LLM APIs

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Summary ✨ AI‑Generated

A backend engineering position for experienced developers building scalable services and integrating modern AI capabilities. The role involves designing robust architectures, APIs, databases, and distributed systems.

Highlights

Advanced backend engineering role involving modern Java ecosystems, distributed systems, and AI integration technologies.

Description

10+ years of professional software development experience in Java (Java 11/17/21).Deep proficiency with Spring Boot / Spring Cloud (or modern reactive/JVM frameworks like Quarkus, Micronaut, Vert.x).Strong experience designing and optimizing RESTful APIs, gRPC, and event-driven architectures (Kafka / RabbitMQ).Solid background in SQL/NoSQL databases (PostgreSQL, MySQL, MongoDB, Cassandra) including indexing, query optimization, and connection pooling.Solid understanding of concurrency, multi-threading, memory management, and distributed systems design patterns.AI / GenAI Integration ExpertiseHands-on experience integrating LLM APIs (OpenAI, Anthropic, open-source models via vLLM/Ollama, or internal model hubs).Practical experience with Java AI frameworks: Spring AI, LangChain4j, or building custom orchestration pipelines.Demonstrated experience with RAG patterns: document chunking, embeddings generation, vector search, and reranking.Understanding of prompt engineering, structured outputs (JSON schema enforcement), tool/function calling, and AI evaluation frameworks.