The Umanitek Guardian Agent protects people from deepfakes and digital impersonation by combining Decentralized Knowledge Graphs (DKG) with perceptual intelligence. If you’re excited by the idea of building resilient infrastructure and operational systems for agents that reason, not just predict, you’ll feel right at home.

As a Frontend Developer you’ll be responsible for building and evolving the user-facing experience of the Umanitek Guardian ecosystem. This includes the Guardian Agent UI, the continuous guarding browser extension, dashboards for interacting with the Guardian network, and Umanitek’s public-facing website and landing pages.

You’ll work closely with backend, AI, and protocol engineers, as well as designers and founders, to translate complex decentralized and AI-driven functionality into clear, intuitive, and trustworthy user experiences. This is a hands-on role where attention to detail, performance, and modern design practices really matter.

Responsibilities

•  Build and maintain the Guardian Agent frontend (dashboards, controls, visualizations, alerts)
•  Develop and maintain the continuous guarding browser extension (UX, state management, integrations)
•  Implement and iterate on Umanitek’s website and landing pages
•  Translate Figma designs into high-quality, pixel-perfect, production-ready code
•  Collaborate with backend and AI teams to integrate APIs, agents, and DKG-based services
•  Ensure excellent UX, accessibility, and performance across devices and browsers
•  Contribute to frontend architecture, component libraries, and design systems
•  Participate in product discussions and help shape how users interact with AI safety tools
•  Maintain alignment between frontend features and the broader Guardian roadmap

Technical experience that is most relevant to us:

•  3+ years of professional frontend development experience
•  Strong experience with React and the modern React ecosystem (Next.js / React Native)
•  Solid understanding of TypeScript, component-driven architecture, and state management
•  Experience building modern, responsive UIs and working closely with designers
•  Proven ability to implement designs directly from Figma
•  Familiarity with APIs, authentication flows, and real-time or event-driven interfaces
•  Good communication skills and comfort working in a fast-moving, interdisciplinary team

Technical experience that is nice to have:

•   Experience with Expo framework
• Experience with LLM-powered or AI-driven applications
•  Familiarity with Web3 / blockchain concepts (wallets, signatures, decentralized apps)
•  Experience with building browser extensions (Chrome, Firefox)
•  Exposure to data visualization, graph-based UIs, or complex dashboards
•  Designs which include performant and lively animations
•  Familiarity with knowledge graphs and/or decentralized knowledge graph networks

Tech Stack and Tools:

React, Next.js, TypeScript Tailwind / modern CSS-in-JS approaches Browser Extension APIs REST & GraphQL APIs GitHub, CI/CD Figma (basic familiarity) Docker (basic familiarity) AWS / GCP (nice to have) Web3.js / Polkadot.js (nice to have)

Why Umanitek

We’re early, lean, and ambitious.

You’ll work directly with founders and researchers behind Umanitek and OriginTrail, helping build the foundation of AI safety infrastructure used by public institutions, enterprises, and individuals.

If that sounds like your kind of hard – come build with us.

We offer a market-aligned salary, participation in the employee stock option pool, and clear opportunities to grow into senior and leadership roles as the company scales.

If interested, please send your CV to [email protected] or apply via our website.

On site presence is requested a few times per week, as needed.