Senior React UI/UX Developer

About Keytag Labs

Keytag.ai partners with organizations to analyze their data and processes, enabling the integration of Generative AI through AI assistants, agent frameworks, and knowledge graphs.

Role Overview

As a Senior React UI/UX Developer, you will contribute to both client projects and internal Keytag products. Your work will involve creating custom AI assistants, agent systems, and knowledge-graph applications for enterprise clients on ongoing contracts, collaborating closely with client teams from requirement gathering through delivery and post-release support. Additionally, you'll enhance Keytag's own platform and modular UI components that support these client solutions.

Key Responsibilities

• Engage directly with client teams to demonstrate features, collect feedback, and resolve project issues.
• Develop tailored features and integrations built on top of Keytag's platform catering to specific client needs.
• Refine core product components, UI patterns, and front-end architecture used across various client implementations.
• Create complex, data-intensive interfaces such as large tables, graph visualizations, and agent chat UIs that interact with JSON data served by Python/FastAPI backends.
• Work from specifications, proactively raising questions and recommending enhancements together with architects and backend developers.
• Deploy your work using Git, CI/CD pipelines, and Docker within Linux environments.

Candidate Profile

• Minimum five years of professional front-end development experience, including at least three years working with React (Hooks, Context, and large-scale state management).
• Proven track record of delivering complex, data-centric applications used by real business users—not just marketing sites or tutorials.
• Hands-on experience communicating with clients or stakeholders, running demos, gathering requirements, or managing support escalations.
• Ability to balance client project delivery with long-term product enhancements, as seen in product companies with enterprise clientele or service firms with proprietary platforms.
• Strong command of written and verbal English, comfortable communicating regularly with client teams.
• Ability to operate independently within a small, remote team setup.

Preferred Qualifications

• Familiarity with Python and FastAPI frameworks.
• Experience using advanced visualization libraries such as ag-grid or GoJS.
• Background in developing UIs for large language model (LLM)/AI assistants or knowledge graph applications.
• Exposure to AI-assisted development tools like Claude Code.
• Additional experience with Angular framework.

Benefits

• Option to work remotely, promoting a flexible work-life balance.
• Comprehensive medical insurance for you and your family.
• Collaborate in an approachable, well-structured team with transparent communication.
• Continuous opportunities for professional and personal skill development.