umanitek

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 Full-Stack Engineer, you’ll work across the Guardian Agent stack, building both user-facing applications and the backend services, APIs, and plugins that power them. You’ll contribute directly to the DKG Node runtime, MCP-based agent tooling, and Guardian-facing UIs, helping turn decentralized and AI-driven capabilities into reliable, production-ready products.

You’ll spend a significant portion of your time building and extending DKG Node plugins – mini-apps that expose MCP tools, REST APIs, and agent capabilities, while also working on frontend applications such as dashboards, the continuous guarding browser extension, and internal tooling. This is a hands-on role where ownership, architectural thinking, and the ability to move fluidly between frontend and backend really matter.

Responsibilities

Build and maintain full-stack features for the Guardian ecosystem, spanning UI, APIs, and agent logic
Develop and extend DKG Node plugins that expose MCP tools, REST endpoints, and agent capabilities
Implement backend services using Node.js, Express, and REST APIs to support Guardian workflows
Integrate frontend applications with DKG, MCP tools, and AI agents
Build and maintain the Guardian Agent UI, dashboards, and internal tools
Contribute to the continuous guarding browser extension (frontend + backend integrations)
Ensure security, performance, observability, and reliability across the stack
Participate in product discussions and help shape how users and agents interact with AI safety systems
Maintain alignment between Guardian features and the broader DKG and Umanitek roadmap

Technical experience that is most relevant to us:

3+ years of professional software development experience in a full-stack role
Strong experience with TypeScript across frontend and backend
Solid experience with React and the modern React ecosystem (Next.js, hooks, state management)
Experience building backend services with Node.js and Express
Experience with LLM systems/applications and the Model Context Protocol (MCP)
Familiarity with REST APIs, authentication flows, and event-driven or agent-based systems
Experience working with APIs, automation, scripting, and API/SDK integrations
Experience with relational databases and ORMs (Drizzle)
Comfort working across repositories and collaborating in interdisciplinary teams
Strong communication skills and a product-oriented mindset

Technical experience that is nice to have:

Experience with Expo framework
Experience working with Decentralized Knowledge Graphs, semantic web, or graph data
Familiarity with Web3 / blockchain concepts (wallets, signatures, decentralized infrastructure)
Exposure to data visualization, graph-based UIs, or complex dashboards
Experience with automation pipelines or agentic workflows
Basic familiarity with Turborepo build system

Tech Stack and Tools:

React, Next.js, TypeScript Node.js, Express REST APIs, MCP tools & agents Tailwind / modern CSS-in-JS approaches DKG JavaScript SDK (dkg.js) GitHub, CI/CD Docker Turborepo SQL Databases & Drizzle ORM 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 OriginTrail and Umanitek, 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.