Java Full Stack Developer

Intercontinental Exchange (ICE); Jacksonville (FL); On-site; USD 90,000 - 130,000; Full time

Job summary

Intercontinental Exchange, Inc. seeks a Software Developer to design and build web applications. You will own components, implement features, and maintain high-quality code across backend Java/Spring Boot services and a React frontend.

You will write unit tests, participate in code reviews, and collaborate with cross-functional teams to deliver robust solutions. Experience with NLP/LLMs and cloud platforms is a plus. The role emphasizes maintainable code, best practices, and continuous learning.

Qualifications

• Bachelor's degree or equivalent experience in computing.
• 3+ years of professional software development experience.
• Proficient in Java and Spring ecosystem.

Responsibilities

• Design, develop, and maintain web applications using Java and Spring Boot for backend services and React for frontend development.

Skills

Java

Spring Boot

React

TypeScript

SQL

PostgreSQL

REST APIs

Microservices

Git

Azure DevOps

CI/CD

NLP

LLMs

Prompting

Data Preparation

Performance Analysis

Cloud Platforms

Docker

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Docker

Git

Azure DevOps

GitHub Actions

Job description

Job Purpose

We are seeking a Software Developer to join our innovative development team. In this role, you will contribute to the design and development of our applications while taking ownership of specific components and features.

Responsibilities

• Design, develop, and maintain web applications using Java and Spring Boot for backend services and React for frontend development
• Implement new features and enhancements to existing functionality with moderate guidance
• Write clean, efficient, and maintainable code following best practices and team standards
• Create and maintain RESTful APIs and integrate them with React-based frontends
• Collaborate with cross-functional teams to understand requirements and deliver solutions
• Troubleshoot, debug, and resolve technical issues in both backend and frontend systems
• Participate in code reviews, providing and receiving constructive feedback
• Write and maintain unit tests to ensure code quality and functionality
• Contribute to database design and development using SQL and PostgreSQL
• Stay current with relevant technologies and frameworks
• Provide occasional guidance to junior developers

Knowledge and Experience

• Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)
• 3+ years of professional software development experience
• Java Programming: Deep knowledge of Java language, its ecosystem, and best practices
• Experience with SQL, PostgreSQL and relational database concepts
• Frontend Technologies: Proficiency in HTML, CSS, JavaScript, React, and TypeScript
• Backend Development: Expertise in developing and maintaining backend services using Java, Spring, and related technologies
• Strong understanding of RESTful services, microservices architecture, and database management
• Familiarity with version control systems like Git, Azure DevOps, and CI/CD pipelines
• AI & ML Fundamentals: Understanding of natural language processing (NLP), machine learning concepts, and how LLMs work
• Prompt Frameworks & Techniques: Proficiency in methods such as zero-shot, few-shot, chain-of-thought, and knowledge-generation prompting
• LLM API Experience: Hands-on work with major AI platforms (e.g., OpenAI, Anthropic, Google Gemini) to test and refine prompts
• Prompt Optimization: Ability to craft precise, structured instructions that reduce hallucinations and improve accuracy
• Data Preparation: Preparing and curating datasets for training or fine-tuning models
• Performance Analysis: Measuring and improving AI output quality through A/B testing and iterative refinement

Preferred Experience

• Knowledge of cloud platforms (OCP, Apigee, AWS, GCP, or Azure)
• Experience with CI/CD pipelines (e.g., Azure DevOps, GitHub Actions)
• Knowledge of containerization concepts (Docker)
• Familiarity with microservices architecture
• Experience with automated testing frameworks
• Understanding of responsive design and accessibility standards
• Knowledge of performance optimization techniques

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Intercontinental Exchange, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to legally protected characteristics.