Freelance Fullstack Dev: Vue.js + .NET (Greenfield)

Monterail; Warszawa; On-site; PLN 83,000 - 165,000; Full time

Job summary

Monterail in Warsaw is seeking a strong Regular Fullstack Developer (Vue.js + .NET) for a freelance greenfield project in retail. You will build a modern UI with Vue.js and robust backend services in .NET, working in a small two-person team alongside a Senior Developer.

You will integrate external systems (Shopify, Patchworks, RFID), deploy multi-tenant Azure architecture with SQL Server, and convert a POC into production-ready code.

Qualifications

• 3+ years of hands-on experience as a Fullstack Developer with Vue.js and .NET (C#).
• Self-driven approach to feature design and technical implementation, able to define functional requirements and basic user flows.
• Practical knowledge of SQL Server and core Azure services.
• Experience with REST APIs and third‑party integrations (e.g., e‑commerce platforms, ERP systems).
• Ability to take ownership of assigned tasks and collaborate in a small, agile team.
• Good command of English (B2+).
• Availability: Full-time on a B2B contract / hourly rates.

Responsibilities

• Build from Scratch: design and develop a greenfield retail dashboard using C#/.NET on the backend and Vue.js on the frontend.
• Integrate external systems like Shopify, Patchworks, and RFID tracking systems.
• Work with cloud infrastructure, implementing multi-tenant architecture on Azure with a SQL Server database.
• Translate the POC into production code, writing clean, scalable, maintainable software.

Skills

Vue.js

.NET (C#)

REST APIs

SQL Server

Azure

Self-driven

English (B2+)

Tools

Shopify

Patchworks

RFID systems

Job description

Monterail in Warsaw is seeking a strong Regular Fullstack Developer (Vue.js + .NET) for a freelance greenfield project in retail. You will build a modern UI with Vue.js and robust backend services in .NET, working in a small two-person team alongside a Senior Developer.

You will integrate external systems (Shopify, Patchworks, RFID), deploy multi-tenant Azure architecture with SQL Server, and convert a POC into production-ready code.