We are building a small suite of internal “AI agents” that turn our operational data into clear, reviewable recommendations our teams can act on every day.
We are looking for a hands-on freelance engineer to design, build, and maintain these agents end to end on our existing stack: data models and queries in Azure SQL, orchestration and delivery in n8n, and reasoning via Azure OpenAI.
Key responsibilities
Translate a business goal into a working agent: data model, recommendation logic, workflow, and review interface.
Write clean, performant T-SQL (window functions, aggregation, indexing, materialization) against large data tables.
Build and debug n8n workflows, including function (JavaScript) nodes, SQL nodes, LLM nodes, and webhooks.
Engineer and tune prompts for consistent, valid, business-aligned output.
Deliver complete, ready-to-run scripts and importable workflow files; debug to root cause rather than patching symptoms.
Document each agent’s logic, data objects, and decisions so the work is maintainable across sessions and people.
Required skills & experience
n8n: solid hands-on experience building non-trivial workflows (self-hosted a plus), including webhooks, function nodes, and external service nodes.
SQL Server / Azure SQL: strong T-SQL — views, stored procedures, window functions, query tuning, and working with large warehouse tables.
LLM integration: practical experience with Azure OpenAI or the OpenAI API, including prompt engineering and structured (JSON) outputs.
comfortable writing and debugging logic inside n8n function nodes.
HTML / CSS: able to produce clean, email-client-safe HTML emails and simple interactive web forms.
Data modeling: able to design a sound data layer from raw source tables and reason about grain, keys, and joins.
Working style: independent, detail-oriented, communicates clearly, and delivers tested, ready-to-run artifacts.
Desired Candidate Profile
Nice to have
Experience with Zenoti, SAP, or similar retail/salon/ERP data sources.
Power BI or other BI dashboarding.
Familiarity with retail, beauty, or multi-branch operations.