AI Java Developer

Ninth Wave

AI Java Developer

Full Time Opportunity

New York City NY

Job Summary

We are hiring an AI Java Developer to extend the Compass platform: a Spring Boot application backed by OpenSearch and AWS Bedrock that helps U.S. banks publish monitor and govern their open-banking / FDX data-sharing APIs. You will build backend services that ingest bank-supplied artifacts (Postman collections OAS configuration files) expose them through REST Thymeleaf admin surfaces and integrate LLM-driven assistance (Bedrock Knowledge Bases Agents RAG over our internal corpus) into the day-to-day operator workflow.

The role is hands-on Java Spring Boot with meaningful GenAI integration work not a research role and not a pure prompt-engineering role. Youll own features end-to-end from OpenSearch index design through Bedrock Agent wiring to the admin UI that exposes them.

Key Responsibilities

• Design and develop services in the Compass Spring Boot codebase REST APIs admin Thymeleaf views OpenSearch-backed data flows.
• Integrate AWS Bedrock (Claude family models Knowledge Bases Agents) into Java services for RAG summarization and operator-assist features.
• Build and maintain ingestion pipelines that turn bank-supplied artifacts (Postman collections configuration YAML FDX mapping spreadsheets) into structured OpenSearch documents.
• Wire OpenSearch indexing tenant-scoped routing and vector search for RAG retrieval.
• Implement CI/CD via the existing GitHub-based pipelines; keep build and deploy times honest.
• Optimize application performance scalability and security
• Collaborate with the mappings team the Bedrock / KB content team and the frontend / Thymeleaf maintainers to define and ship features.
• Write clean maintainable well-documented Java; favor small focused commits and reversible changes.
• Stay current with the Java ecosystem and the GenAI tooling landscape

Required Skills & Qualifications

Technical Skills

• Strong proficiency in Java 17
• Spring Boot
• Spring MVC Thymeleaf
• REST API design JSON-in / JSON-out paginated search endpoints multipart upload
• Microservices / service-oriented design within a single deployable
• Hands-on OpenSearch / Elasticsearch experience
• Experience integrating LLMs into Java applications via REST clients or SDKs AWS Bedrock preferred
• RAG architectures chunking embedding retrieval citation
• Vector databases
• Cloud platform experience AWS specifically:
  • Elastic Beanstalk (Compass deploy target not Kubernetes)
  • Bedrock (KB Agents)
  • S3 IAM CloudWatch
  • Multi-account Organization layout
• Experience with Git Maven and CI/CD pipelines
• Comfortable with relational and unstructured databases

Preferred Skills

• Prior work in fintech / open banking / FDX / account-aggregation / payment-network connectivity or willingness to learn the domain fast.
• Experience with Generative AI and LLM applications in production
• Familiarity with Python for AI prototyping and one-off data tooling
• Experience with AI security prompt-injection defense and data-privacy standards
• Exposure to Postman collection parsing
• Exposure to Atlassian APIs

Educational Requirements

• Bachelors or Masters degree in Computer Science Software Engineering Artificial Intelligence or related field or equivalent demonstrable experience shipping production Java GenAI systems.

Required Experience:

Senior IC