Senior Full Stack AI Engineer

Role overview Build AI applications that connect large language models with tools and desktop workflows. As a senior full stack engineer working closely with a founding team, you’ll shape product features from backend integrations to user interfaces, with an emphasis on reliable, responsive AI interactions.

Responsibilities - Develop AI assistant features, including conversation flows, prompt handling, and streamed responses. - Build cross-platform desktop applications and secure communication between application components. - Integrate model context and tool capabilities through server connections and supported transport methods. - Create clear interfaces for AI-driven tasks and assist users integrating with the product. - Contribute to the user community and related open-source work.

Requirements - At least five years of software development experience with JavaScript or TypeScript and Node.js. - Production experience building features with LLM APIs, plus hands-on prompt engineering and context management. - Experience with SQL databases, REST APIs, streaming APIs, and client-server integrations. - Understanding of asynchronous programming, event-driven architecture, and core AI/ML concepts. - Ability to work independently, deliver outcomes, and communicate effectively with users and teammates.

Nice to have - Experience implementing MCP clients, tool calling, or STDIO and SSE transports. - Electron desktop development, including IPC, and familiarity with Google Cloud or Docker. - Workflow automation experience, such as with n8n, or experience building SDKs, CLIs, and other developer tools. - Knowledge of application security practices.

Benefits and work setup - Remote role with a team based in Latvia and Portugal. - Opportunity to be an early engineering hire and work directly with customers and investors. - Stock options after the trial period, plus learning support and opportunities to develop expertise in AI applications. - Salary is listed as €4,500–€6,500 before taxes.