Engineer II

Intercontinental Exchange Holdings, Inc.; Jacksonville (FL); On-site; USD 80,000 - 100,000; Full time

Job summary

Intercontinental Exchange Holdings, Inc. in Jacksonville, FL is seeking a qualified Software Developer II. In this role, you will design, develop, and maintain web applications using C# and .NET, while also leveraging tools like Claude for improved development efficiency. A strong understanding of modern JavaScript, SQL, and experience with React is essential. Ideal candidates will possess a Bachelor's degree in Computer Science and have at least 2 years of software development experience. This position promotes a culture of innovation and continuous improvement.

Qualifications

• 2+ years of professional software development experience.
• Strong knowledge of the .NET ecosystem (e.g., .NET Core, ASP.NET Core).
• Experience with React and its ecosystem.
• Familiarity with Agile development methodologies.

Responsibilities

• Design and maintain web applications using C# and .NET.
• Create and maintain RESTful APIs for React frontends.
• Write and maintain unit tests ensuring code quality.
• Troubleshoot and resolve technical issues using AI-assisted tools.

Skills

C#

.NET

React

JavaScript (ES6+)

TypeScript

SQL

Version Control (Git)

Agile Methodologies

Education

Bachelor's degree in Computer Science or related field

Tools

Claude (AI Tool)

Docker

Job description

Overview

We are seeking an experienced Software Developer II 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. You will work in an AI-forward engineering culture, leveraging tools like Claude to accelerate development, improve code quality, and solve complex problems more effectively.

Responsibilities

• Design, develop, and maintain web applications using C# and .NET 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
• Leverage Claude as a core development tool to accelerate workflows including code generation, documentation, and code review assistance
• Collaborate with cross-functional teams to understand requirements and deliver solutions
• Troubleshoot, debug, and resolve technical issues in both backend and frontend systems, using AI-assisted tools to diagnose and resolve issues faster
• Participate in code reviews, providing and receiving constructive feedback
• Write and maintain unit tests to ensure code quality and functionality, including AI-assisted test generation and coverage analysis
• Contribute to database design and development using SQL
• Stay current with relevant technologies, frameworks, and emerging AI/LLM capabilities relevant to the team's stack
• Provide occasional guidance to junior developers, including sharing effective AI-assisted development practices

Knowledge and Experience

• Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)
• 2+ years of professional software development experience
• Strong knowledge of C# and the .NET ecosystem (e.g., .NET Core, ASP.NET Core)
• Experience with React and its ecosystem (hooks, state management)
• Proficiency with modern JavaScript (ES6+) and TypeScript
• Experience with SQL and relational database concepts
• Understanding of web application security principles
• Experience with version control systems (Git)
• Familiarity with Agile development methodologies
• Strong problem-solving skills and attention to detail
• Excellent communication and collaboration abilities
• Comfort using Claude as a daily development tool for tasks such as code generation, debugging assistance, and documentation

Preferred Knowledge and Experience

• Experience with CI/CD pipelines (e.g., Azure DevOps, GitHub Actions)
• Knowledge of containerization concepts (Docker)
• Experience with AWS
• Experience with Java or Spring Boot as a secondary backend language
• Familiarity with microservices architecture
• Experience with automated testing frameworks
• Understanding of responsive design and accessibility standards
• Knowledge of performance optimization techniques
• Experience using Claude effectively across the software development lifecycle, from design through testing and deployment
• Familiarity with getting the most out of Claude through clear prompting and understanding its strengths and limitations in a dev context

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