About the role
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. You'll 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
* Bachelor's or Master's degree in Computer Science, Software Engineering, Artificial Intelligence, or related field — or equivalent demonstrable experience shipping production Java + GenAI systems.
Compensation: $100,000 to $125,000