ICE · 18 hours ago
Senior Developer
Jacksonville, FL
Full-time
Onsite
Senior Level
5+ years expICE is a company that focuses on providing high-performance web applications. They are seeking a Senior Developer to design, develop, and maintain scalable web applications using C# and React, while collaborating with cross-functional teams and ensuring the quality and performance of the software.
E-CommerceFashionJewelryMarketplace
Responsibilities
Design, develop, and maintain scalable, high-performance web applications using C# for backend services and React for frontend development
Collaborate with cross-functional teams, including product managers, designers, and other developers, to deliver high-quality software solutions
Write clean, maintainable, and efficient code following best practices and coding standards
Develop and maintain RESTful APIs and integrate them with React-based frontends
Optimize application performance, ensuring responsiveness and scalability
Conduct code reviews, mentor junior developers, and provide technical guidance to the team
Troubleshoot, debug, and resolve complex technical issues in both backend and frontend systems
Stay up-to-date with the latest trends and technologies in C#, .NET, React, and web development
Participate in architectural discussions and contribute to technical decision-making
Ensure the security, reliability, and maintainability of the software
Qualification
Required
Bachelor's Degree in Computer Science, Information Systems or the equivalent combination of education, training, or work experience
5+ years of experience in C# and the .NET ecosystem (e.g., .NET Core, ASP.NET Core)
Strong understanding of object-oriented programming (OOP) principles, design patterns, and SOLID principles
Experience with building RESTful APIs and microservices using ASP.NET Core
Proficiency in working with Entity Framework (EF) or other ORM tools
3+ years of experience with React and its ecosystem (e.g., Redux, React Router, Context API)
Strong knowledge of modern JavaScript (ES6+), TypeScript, and frontend build tools (e.g., Webpack, Babel)
Experience with responsive design and CSS frameworks (e.g., Bootstrap, or Material-UI)
Proficiency in working with relational databases (e.g., SQL Server) and writing optimized SQL queries
Experience with NoSQL databases (e.g., MongoDB) is a plus
Familiarity with DevOps practices, including CI/CD pipelines (e.g., Azure DevOps, GitHub Actions, Jenkins)
Experience with containerization tools like Docker and orchestration platforms like Kubernetes is a plus
Experience with unit testing frameworks (e.g., xUnit, NUnit) and frontend testing tools (e.g., Jest, React Testing Library)
Experience with cloud platforms like Azure, AWS, or Google Cloud
Familiarity with serverless architecture and cloud-native development is a plus
Strong problem-solving and analytical skills
Excellent communication and collaboration abilities
Ability to mentor and guide junior developers
Self-motivated and able to work independently with minimal supervision
Preferred
Experience with state management libraries like Redux Toolkit or MobX
Knowledge of GraphQL and its integration with React
Experience with performance profiling and optimization tools for both backend and frontend
Contributions to open-source projects or a strong GitHub portfolio
Company
ICE
We are building the largest jewelry marketplace.
10001+ employees
H1B Sponsorship
ICE has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2020 (1)
Funding
Current Stage
Late StageTotal Funding
$49MKey Investors
Polaris Partners
2017-12-07Acquired
2016-03-15Series Unknown
2015-07-01Seed· $2M
Leadership Team
Joseph Albert
Chief Technology Officer
David Farrell
Chief Operating Officer, ICE Futures U.S.
Recent News
2026-01-13
Crowdfund Insider
2026-01-12
Company data provided by crunchbase