Fullstack Engineer - Agentic AI (React/Python)

Why Join Us At Cloudfide, we engineer solutions where data truly becomes an accelerator for innovation. We build and evolve large-scale Big Data and cloud-native platforms for global clients, including leaders in retail and the Fortune 500. We process massive, complex datasets, operate fully in the cloud ecosystem, and work with the latest technologies, including AI, ML, MLOps, and modern data architectures. Our projects have measurable, real-world impact, from enhancing customer experiences at scale to empowering data-driven decision-making in high-visibility global organizations. As we continue to grow, you'll have the opportunity to shape solutions, mentor others, drive architecture decisions, and take ownership of strategic initiatives. Opportunity Overview As a Fullstack Engineer, you will build a services support portal powered by a conversational AI assistant. Your goal will be to deliver a polished, secure, accessible, and responsive application where users and support agents can easily find knowledge and escalate to human support when needed. Expect an AI-forward environment where you'll work across the full stack, from React interfaces to Python services and agentic AI capabilities. You'll join a team of passionate engineers who value technical excellence, collaboration, and continuous growth. Your Responsibilities Designing and building a modern web portal with React 19, TypeScript, and Tailwind CSS, with strong attention to UI quality, accessibility, and responsiveness. Developing backend services and APIs in Python 3 and FastAPI. Implementing REST APIs and real-time Server-Sent Events streaming, end to end, including streaming AI assistant responses to the UI. Building and evolving the conversational AI assistant using agentic AI patterns, including tool calling, knowledge retrieval, and multi-step workflows. Designing seamless escalation flows from the AI assistant to human support agents. Implementing secure authentication and authorization with OAuth 2.0 / OIDC (Azure AD via MSAL or Ping), including MFA, for both users and agents. Setting up and maintaining CI/CD pipelines in GitHub Actions. Translating business requirements into well-structured technical tasks and delivering features end-to-end. Conducting code reviews and contributing to documentation and best practices. Sharing knowledge and contributing to a collaborative learning culture within the team. What We're Looking For 3+ years of experience in a fullstack development role. Strong proficiency in React (ideally React 19) and TypeScript. Solid experience with Python 3 and FastAPI. Hands-on experience with Tailwind CSS and modern frontend tooling. Practical experience with REST APIs and Server-Sent Events (or similar streaming mechanisms), end to end. Experience with OAuth 2.0 / OIDC authentication flows, including Azure AD (MSAL) or Ping, and MFA. Experience with GitHub Actions and CI/CD pipelines. Experience building LLM-based applications or agentic AI solutions, with a good understanding of core concepts such as prompting, tool calling, RAG, and evaluation. Understanding of web accessibility standards (WCAG) and responsive design. Proactive and curious mindset, comfortable working in dynamic, evolving project environments. Fluent English communication, able to collaborate effectively with clients and international teams. Nice to Have Experience with agent frameworks or Model Context Protocol (MCP) servers. Experience building conversational assistants or customer support solutions. Familiarity with MS Azure services, including Azure OpenAI. Knowledge of security best practices for web and LLM-based applications. Experience with testing frameworks (e.g. Vitest, Playwright, pytest). Here's why you'll love Cloudfide Benefits: MyBenefit platform / Multisport Enel-Med private medical care Professional Growth: Annual 2,000 PLN development budget Access to e-learning platforms Real opportunities to expand responsibility and lead initiatives; most of our Leads come from internal promotions As the company continuously grows, you get real opportunities to expand your responsibilities, explore new areas, and even take ownership of your own initiatives. Work Environment: Long-term cooperation: UZ or B2B (we value stable, lasting relationships) Remote-first, work from anywhere in the world (workation) Flexible hours & strong focus on work-life balance Collaboration with top engineers you can truly learn from Flat structure: every voice counts, and you help shape the company Culture & Integration: Company-wide trips (including international ones) Team integration budgets Open communication and supportive, passionate teams Equal Opportunities CLOUDFIDE is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.