5 fastapi developer jobs at 4 companies in Jacksonville, FL
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Senior Developer
Atlanta or Jacksonville
OnsiteFull Time
Intercontinental ExchangeNYSE: ICE: Operates global financial exchanges, clearing houses, and mortgage technology.
Hands-on experience across software development lifecycle delivering Generative AI/LLM and full-stack solutions with cloud, containers, CI/CD, and strong programming skills.
React, FastAPI, Node.js, Anthropic, OpenAI, Azure OpenAI, Claude Desktop, Claude CLI, Claude Code, Cursor, Microsoft Copilot, Google Gemini, JavaScript, Python, Java, C#, Angular, Vue.js, PostgreSQL, MySQL, MongoDB, Cassandra, Tableau, Microsoft PowerBI, AWS, Azure, Google Cloud, Docker, Kubernetes, Git
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOE6+ years apps development experience; strong ML/AI foundations incl. NLP, LLMs and RAG; hands-on experience with LLMs (OpenAI, Google Gemini, Anthropic, Mistral, Llama), Python and ML libraries, vector DBs, MLOps and CI/CD, container orchestration.
CitiNYSE: C: Global diversified financial services holding.
6+ YOE6+ years apps development experience; strong ML/AI foundations, LLM and RAG expertise; hands-on with Python and libraries (Pandas, NumPy, scikit-learn, PyTorch, TensorFlow, Transformers), LangChain, LlamaIndex; experience with Vertex AI, Hugging Face, vector DBs, CI/CD, Kubernetes/OpenShift, and production GenAI deployments.
CitiNYSE: C: Global diversified financial services holding.
Strong Python and AI/ML skills, experience with Generative AI/LLMs, data engineering and MLOps, containerized deployments (Docker/OpenShift), familiarity with LangChain/Hugging Face, and bachelor's degree or equivalent.
Fortegra: Provides specialty insurance products and warranty service solutions.
7+ YOE7+ years software engineering, expert React, backend framework experience (Node.js, Python, .NET Core), secure public-facing app and cloud architecture experience, hands-on use of AI coding tools and agentic workflows.
React, Node.js, NestJS, Express, Python, FastAPI, Django, Microsoft .NET Core, AWS, Microsoft Azure, GCP, Claude Code, GitHub Copilot, Cursor, Replit, Lovable