aimlroles

Backend / AI Developer - Freelancer

Monterail Open · verified Oct 22, 2026
Remote Wrocław GdańskKraków +2 Mid-level AI Engineering

At a glance

Mid-level AI Engineering role at Monterail. Remote, Poland.

Pay not stated AI Engineering salary

RoleAI Engineering
SeniorityMid-level
LocationWrocław
WorkplaceRemote
PostedSep 30, 2026 · 3w ago
Also hiring inGdańsk, Kraków, Poznań, Warsaw
Role brief

aimlroles summary, based on the employer's posting.

What you'll do

  • Bring CRM, analytics and BI data into one shared layer, keeping schemas and synced records consistent
  • Build AI agents for business tasks such as pricing, signal analysis, content and data tagging
  • Create read-only MCP servers that give agents and tools access to specific business data
  • Develop backend APIs and business-facing tools that connect data with agents and their insights
  • Maintain containers, databases and monitoring, and document the boundaries between system layers

What you bring

  • Around two years of commercial Python backend development
  • Hands-on FastAPI or comparable web-framework experience, plus PostgreSQL schema, query and optimization skills
  • Experience with REST APIs and ETL or data synchronization across systems
  • Working knowledge of Docker and Docker Compose, alongside practical LLM and prompt-writing experience
  • Clear technical documentation skills and English sufficient for daily client communication at B2 or above

Who this fits

This freelance role suits a mid-level backend developer interested in applying LLMs to agent-based systems and business workflows. You’ll work directly with client-side teams and need English for daily communication.

From the employer

About the Project

We're building an AI Transformation platform for an enterprise client, focused on back-office process automation and AI-driven decision support. The platform brings together data from multiple business systems and puts AI agents on top of it, so that business teams get actionable insights and automated workflows instead of manual routines.

Requirements

What You'll Do

  • Integrate data from multiple business sources (CRM, analytics, BI) into a single, cohesive data layer
  • Build and deploy AI agents that execute specific business tasks: signal analysis, pricing, content/SEO, data classification and tagging
  • Develop MCP (Model Context Protocol) servers: dedicated, read-only, domain-specific servers that expose data to agents and tools
  • Do data engineering work: schema design, ETL and synchronization from external systems, and ensuring data quality and consistency
  • Contribute to the agent platform architecture: routing layer, cost control, access policies, and telemetry for LLM calls
  • Design and build backend APIs connecting the data layer with agents and front-end applications
  • Create user-facing tools for business teams, driven by data and agent-generated insights
  • Maintain infrastructure: containerization, database management, monitoring, and observability
  • Document architectural decisions and keep strict contracts between system layers

Tech Stack

Python · FastAPI · Agno (agent framework) · MCP · PostgreSQL · Docker / Docker Compose · Next.js

What we are looking for:

  • Solid commercial experience (approx. 2 years) in backend development with Python
  • Hands-on experience with FastAPI or a comparable modern web framework
  • Good knowledge of PostgreSQL: schema design, query writing, and optimization
  • Experience building and consuming REST APIs
  • Understanding of ETL and data synchronization concepts, and of how to keep data consistent across systems
  • Working knowledge of Docker and Docker Compose
  • Practical experience with LLMs and prompt writing; interest in building agent-based systems
  • Comfort working with agentic AI tools (e.g., Claude Code) in daily development, and the discipline to critically verify their output
  • Ability to write clear technical documentation
  • Good communication skills and confidence working directly with client-side teams
  • English level sufficient for daily communication with the client (B2+ / Upper-Intermediate)

Nice to Have

  • Experience with agent frameworks (Agno, LangChain, LlamaIndex, or similar)
  • Familiarity with MCP (Model Context Protocol)
  • Basic Next.js / React skills for working on front-end applications
  • Experience with observability and monitoring tools
  • Experience integrating with CRM, analytics, or BI systems
  • Background in enterprise or consulting projects

What do we mean by freelance?