Remote Full-Stack AI Systems Engineer

Sowelo Consulting; Polska; Hybrid; PLN 140,000 - 210,000; Full time

Job summary

Sowelo Consulting is seeking a Full Stack Engineer – AI Systems to join a fully remote, Europe-wide team building proactive, AI-native applications for email, calendars, notes and tasks.

You will own the product layer, design multi-step agent workflows, integrate LLMs and memory architectures, and work with ML and backend engineers to ensure low latency, reliability, and user trust across production-grade workflows.

Qualifications

• Strong professional full-stack development experience using modern frameworks (Next.js, Python, Node.js).
• Practical experience building AI-driven applications, RAG systems, or working directly with LLM APIs (OpenAI, Anthropic, open-source models).
• Solid understanding of system design, API architecture, and database systems (SQL & NoSQL).

Responsibilities

• Build end-to-end product features across the frontend, backend, and AI integrations.
• Design multi-step agent workflows that handle planning, tool use, failure, and recovery across sessions.
• Integrate LLMs, memory architectures, and external APIs into systems that behave reliably under real-world conditions.
• Architect user experience patterns designed for real-time interactions, including streaming states, partial results, and tight latency constraints.
• Improve system reliability, observability, monitoring, and fallback mechanisms for LLM and tool failures.
• Collect user signals and telemetry to support continuous model evaluation, hallucination reduction, and product iteration.
• Partner with ML and backend engineering teams to define system architectures and establish scalable integration patterns.

Skills

Next.js

Python

Node.js

AI-driven applications

LLM APIs

RAG systems

OpenAI

Anthropic

Docker

Kubernetes

SQL

NoSQL

PostgreSQL

MongoDB

Tools

Docker

Kubernetes

OpenAI API

Anthropic API

PostgreSQL

MongoDB

Job description

Sowelo Consulting is seeking a Full Stack Engineer – AI Systems to join a fully remote, Europe-wide team building proactive, AI-native applications for email, calendars, notes and tasks.

You will own the product layer, design multi-step agent workflows, integrate LLMs and memory architectures, and work with ML and backend engineers to ensure low latency, reliability, and user trust across production-grade workflows.