Skill specialists
Hire Java Developers for AI and Data Systems
Browse reviewed Java developers who bring AI into the systems your company already runs: LLM calls inside Spring Boot services, Kafka and Spark pipelines that feed models, and the APIs around them.
Top matching AI talents
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Avi Ziskind
Ismail
Emily Medema
Hiring guide
Why companies hire Java experts
Most AI pilots are built in Python, but the systems they have to plug into (orders, payments, customer records, event streams) often run on Java. Java developers who know LLM APIs and data pipelines connect the two: they call models from Spring services with timeouts and retries, move data through Kafka or Spark, and keep the whole thing fast and secure in production.
Popular projects
- Add an LLM feature (summaries, classification, search) to an existing Spring Boot service
- Build Kafka or Spark pipelines that prepare data for machine learning models
- Serve a trained model behind a Java API with monitoring and fallbacks
- Move an AI prototype from Python notebooks into your Java production stack
What to look for
- Production Java experience (Spring Boot or similar), not only coursework
- Has called an LLM or ML model from a backend: timeouts, retries, cost control
- Data experience that matches your stack: Kafka, Spark, SQL or a vector database
Frequently asked questions
Why hire a Java developer for an AI project?
Because the AI usually has to work inside systems that run on Java. A Java developer who knows LLM APIs and data pipelines adds the model to your existing services, handles errors and load, and keeps data where it belongs, which a Python-only prototype does not cover.
Can Java be used for machine learning?
Yes, mostly to run and connect models rather than to train them. Teams often train in Python and serve the model, or call an LLM API, from Java services. Libraries such as Spring AI and LangChain4j bring LLM calls to Java, and Spark and Kafka handle the data side.
What should a Java developer know to work on AI features?
How to call a model API from a backend with timeouts, retries and cost limits; how to move and clean data with Kafka, Spark or SQL; and how to test and monitor a feature whose answers can vary. Ask for one AI or data project they shipped.
Can I hire a Java developer for a short project?
Yes. Many developers on RemoteAI accept freelance and contract work. Start with a fixed-price first milestone, such as one LLM feature added to one service with tests, before a longer engagement.
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