Backend / AI Developer

Monterail — Poland · Posted ~3 hours ago

Senior Contract

Skills

AI agents data engineering ETL schema design LLM architecture API integrations Model Context Protocol (MCP) data quality management LLM MCP CRM BI

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Summary ✨ AI‑Generated

A freelance engineering role focused on building AI-powered business automation platforms. The position involves integrating enterprise data sources, developing intelligent agents, designing data pipelines, and contributing to scalable AI infrastructure.

Highlights

Opportunity to build advanced AI automation solutions, work on modern data architectures, and contribute to intelligent systems that improve business processes.

Description

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 layerBuild and deploy AI agents that execute specific business tasks: signal analysis, pricing, content/SEO, data classification and taggingDevelop MCP (Model Context Protocol) servers: dedicated, read-only, domain-specific servers that expose data to agents and toolsDo data engineering work: schema design, ETL and synchronization from external systems, and ensuring data quality and consistencyContribute to the agent platform architecture: routing layer, cost control, access policies, and telemetry for LLM callsDesign and build backend APIs connecting the data layer with agents and front-end applicationsCreate user-facing tools for business teams, driven by data and agent-generated insightsMaintain infrastructure: containerization, database management, monitoring, and observabilityDocument 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 PythonHands-on experience with FastAPI or a comparable modern web frameworkGood knowledge of PostgreSQL: schema design, query writing, and optimizationExperience building and consuming REST APIsUnderstanding of ETL and data synchronization concepts, and of how to keep data consistent across systemsWorking knowledge of Docker and Docker ComposePractical experience with LLMs and prompt writing; interest in building agent-based systemsComfort working with agentic AI tools (e.g., Claude Code) in daily development, and the discipline to critically verify their outputAbility to write clear technical documentationGood communication skills and confidence working directly with client-side teamsEnglish 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 applicationsExperience with observability and monitoring toolsExperience integrating with CRM, analytics, or BI systemsBackground in enterprise or consulting projects What do we mean by freelance? Read more at Monterail Tech Network