Senior AI Fullstack Engineer

Tappz GmbH; Województwo mazowieckie; Remoto; PLN 150.000 - 210.000; Tempo pieno

Descrizione del lavoro

Tappz is building AI-native applications and seeks an engineer focused on AI systems and agent development in Warsaw. You will design and build backend systems powered by LLMs, develop agent workflows, and implement RAG pipelines for production AI features.

You will own prompt orchestration, context management, and performance optimization, joining a fast-growing startup to ship impactful AI features with flexible remote options.

Competenze

• Experience building backend and frontend systems with Node.js/Next.js and TypeScript.
• Deep experience with LLMs and AI APIs.
• Experience building AI agents or multi-step workflows.
• Experience with vector databases (Pinecone/Weaviate) and RAG.
• Prompt engineering and system design for production AI features.

Mansioni

• Design and build backend systems powered by LLMs.
• Develop agent workflows and tool integrations.
• Build RAG pipelines with vector search.
• Handle prompt orchestration and context management.
• Optimize performance, latency, and cost.
• Ship AI features into production products.

Conoscenze

AI systems & agent development

LLMs & AI APIs

Ownership & fast-paced mindset

Strumenti

Node.js

Next.js

Typescript

Python

Nest.js

GCP

Pinecone

Weaviate

Descrizione del lavoro

Location: Warsaw

Tappz is building AI-native applications powered by large language models. We’re moving fast in a highly competitive space and need an engineer who is fully focused on AI systems and agent development.

We’re looking for someone who enjoys high ownership, working hard, and shipping real AI products.

Tasks

• Design and build backend systems powered by LLMs
• Develop agent workflows and tool integrations
• Build RAG pipelines with vector search
• Handle prompt orchestration and context management
• Optimize performance, latency, and cost
• Ship AI features into production products

Requirements

• Strong backend and frontend engineering (Node.js, Next.js, Typescript, Python, Nest.js, GCP)
• Deep experience working with LLMs and AI APIs
• Experience building AI agents or multi-step workflows
• Vector DB experience (Pinecone/Weaviate/etc.)
• RAG implementation experience
• Prompt engineering and system design
• Production deployment experience

Mindset we value: Ownership, speed, and the willingness to go the extra mile

Benefits

High ownership in a fast-growing AI startup, remote-friendly setup, and the chance to build agent systems in production.