Senior Software Developer

Ninth Wave • New York, NY

44d • Hybrid

About The Position

Senior Software Developer Senior Java Developer with Reactive experience Overview of the Role Ninth Wave is seeking an experienced engineer to build, improve, and maintain application code under the direction of a senior team lead or lead engineer to meet business and technical requirements. The engineer must demonstrate the ability to efficiently build application code from the datastore layer all the way through to the API. The engineer will also maintain and patch systems, software, and applications to eliminate bug fixes, security vulnerabilities and maintain technology currency of systems and applications. In addition to traditional development, the engineer will be expected to leverage modern AI-assisted development tools and plugins to analyze existing codebases, improve quality metrics, identify vulnerabilities, and refactor or optimize existing implementations. This includes using AI-powered tools to assist with code analysis, testing improvements, performance tuning, and accelerating the development lifecycle while maintaining strong engineering standards. Other responsibilities include documenting design and engineering standards; developing to performance metrics and operational guidelines for consistent and stable design; and building and implementing operational processes. Must have prior work experience with Docker and reactive implementations of Java. Experience with Vert.x is a strong plus. Vision for this role: The company is looking to continue to expand functionality, enhance orchestration efficiency for scaling out and back in, and improve the overall high availability of our software products. The person in this role will help lead the expansion, modernization, update, and maintenance of our software services, including leveraging AI-assisted development practices to continuously improve the quality and maintainability of the platform. This role is based in our New York City office and follows the Company's current hybrid work policy.

Requirements

• Experience with reactive implementations of Java
• Experience with Docker
• Proficiency in core Java programming language
• Experience with AWS, Azure, or GCP cloud
• Proficiency building APIs using Java (REST/JSON)
• SQL or No-SQL experience
• Experience using AI-assisted development tools or plugins for code analysis, refactoring, testing, or development acceleration
• Bachelor’s Degree in Computer Science, Engineering, or the equivalent work experience

Nice To Haves

• Proficiency with Vert.x is a strong plus
• Financial services or Fintech domain experience preferred

Responsibilities

• Design, develop, and test back-end software
• Maintain, analyze, and refactor existing codebases to improve performance, security, and maintainability
• Use AI-assisted development tools or plugins to help analyze code, identify improvements, and accelerate development and refactoring efforts
• Maintain and update software documentation
• Participate in a distributed development team and collaborate on architecture and engineering best practices

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level