Senior Fullstack Developer – AI Chatbot, RAG Systems
Posted 21ds ago
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Job Description
Senior Fullstack Developer developing AI chatbot systems for Robots and Pencils. Collaborating with cross-functional teams to build frontend and backend applications leveraging cutting-edge AI technologies.
Responsibilities:
- Design, build, and iterate on frontend applications using React
- Develop backend services and APIs using C# / .NET to support AI-driven workflows
- Rapidly prototype and refine features to validate requirements and technical feasibility
- Contribute to scalable, maintainable codebases aligned with engineering best practices
- Support deployment readiness, including performance considerations and system stability
- Collaborate with AI Engineers to integrate chatbot functionality powered by RAG architectures
- Build supporting services and interfaces that enable seamless interaction with AI models
- Help de-risk AI solutions by validating technical assumptions and identifying potential gaps
- Work directly with client stakeholders to understand requirements and translate them into technical solutions
- Collaborate with UX designers to iterate on UI/UX and deliver intuitive user experiences
- Communicate technical decisions clearly to both technical and non-technical audiences
Requirements:
- B.S. in Computer Science, Computer Engineering, or equivalent experience
- 5+ years of professional software development experience delivering production applications
- Strong experience with:
- React (frontend development)
- C# / .NET (backend development)
- Experience building and integrating APIs
- Strong understanding of modern application architecture and development best practices
- Demonstrated experience using AI coding tools (e.g., GitHub Copilot, Cursor, Claude) as part of daily development workflow
- Experience working in fast-paced, iterative development environments
- Comfortable working in client-facing roles
Benefits:
- Health insurance
- Professional development opportunities
- Flexible working hours


















