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Fulltime Freelance Java Developer Jobs in New York

Salary: $100,000 to $125,000 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 ...

AI Java Developer

Manhattan, NY · On-site

$100K - $125K/yr

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 ...

Senior Java Developer

New York, NY

$62.75 - $79.75/hr

Fulltime // Permanent Interview Process: Phone and Skype Hire End Customer: Banking domain Strong Core Java hands on knowledge. Hands on experience of J2EE frameworks especially Spring, Hibernate and ...

AI Java Developer

Manhattan, NY · On-site

$56.25 - $72.75/hr

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 ...

Java Developer (J2EE)

Edison, NJ

$52.75 - $68.25/hr

This is a Full-Time / Permanent job opportunity. Only US Citizen and Green Card Holder can apply. ** All your information will be kept confidential according to EEO guidelines. Titles: Java Developer ...

Java Developer

Jersey City, NJ · On-site

$53.25 - $69/hr

Java Developer Location ... Jersey City NJ Fulltime position Onsite position ****NO C2C**** JD: * Java web-based technologies.

Fulltime The Client is seeking a technically oriented individual to join the Securities Finance ... Core Java Developer with Strong coding, designing, database and redis experience.

Java Developer

New York, NY

$55.75 - $72.25/hr

Permanent/Full Time Role ? We are looking at well-rounded and hands-on Java Architect with a ... Hands on experience with modern CI, DevOps, Continuous Delivery. ? Experience defining standards ...

Java Developer - OPT Hiring

Piscataway, NJ · On-site

$51 - $66/hr

Remote Immediate Start Full Time OPT Candidates are accepted ( Will file H1B-2022 in Quota) 5+ years of experience in Java Development / JEE Strong hands-on experience in Java (11), Spring Boot ...

Java Developer

Jericho, NY · On-site

$2K - $3K/yr

We are currently seeking an experienced backend developer with 3+ years of experience and expertise ... Job Type: Full-time Schedule: * Evening shift * Monday to Friday * Weekend availability

Hybrid Duration: FULL TIME Key Skills: Java SQL and Strong MS Azure / AWS Accepting H1B transfer candidates We are seeking an exceptional Sr Java Developer / Lead to join our team, someone who is ...

We are currently seeking an experienced backend developer with 3+ years of experience and expertise ... Job Type: Full-time Schedule: * Evening shift * Monday to Friday * Weekend availability

Core Java Developer Location: NYC, NY Duration ... Fulltime BGV will be done for the selected candidates. Must Have Skills: 8+ years hands-on Java ...

As a Java Developer, you must possess superb communication and presentation skills as well as ... Job Type : Full-time Schedule : Monday to Friday COVID-19 considerations : Option to work remotely ...

Java Developer

Bronx, NY · On-site

$53.25 - $68.75/hr

Java Developer Location ... NYC, NY Duration : Long term // Full time The Role: As part of our global team you will be ...

Java Developer

Bronx, NY · On-site

$53.25 - $68.75/hr

Java Developer Location ... NYC, NY Duration : Long term // Full time The Role: As part of our global team you will be ...

Looking for a entry level Java developer with atleast academic background in Programming * The key ... Job Type : Full-time Schedule : Monday to Friday COVID-19 considerations : Option to work remotely ...

Senior Java Developer

New York, NY · On-site

$62.75 - $79.75/hr

Max Salary Not Mentioned Employment Type Direct Jobs (Full Time) Domain Any Description GC/CITIZEN can apply Responsibilities: - Provide day-to-day Actimize and JAVA coding/programming of business ...

Java Developer

New York, NY

$55.75 - $72.25/hr

Java Developer Long Island, NY Full Time Candidate should have minimum 4 years of IT experience as a front-end developer The candidate should have prior experience on front end technologies involving ...

Java Developer

New York, NY · On-site

$86K - $127K/yr

Full stack Java Developer * Type : FTE ( no Subcontractor or C2C) * Mode : Hybrid * Visa : No ... Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time ...

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AI Java Developer

AI Java Developer

Ninth Wave

Manhattan, NY • On-site

Full-time

Posted 21 days ago


Job description

Salary: $100,000 to $125,000


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.