Regular Fullstack Developer (Vue.js + .Net) - Freelancer

Monterail; Poznań; On-site; PLN 165,000 - 248,000; Full time

Job summary

Monterail is seeking a strong Regular Fullstack Developer (Vue.js + .NET) for a freelance greenfield retail dashboard project. You will craft modern, high-performance UI in Vue.js while leveraging .NET backend for supporting services, in a small two-person team with a Senior Developer.

You will build from scratch, connect to external systems (Shopify, Patchworks, RFID), deploy on Azure with SQL Server, and transform the POC into production code with clean, scalable software.

Qualifications

• 3+ years of hands-on Fullstack Dev with Vue.js and .NET (C#).
• Strong product sense to define features and user flows independently for fast delivery.
• Knowledge of SQL Server and core Azure services.
• Experience with REST APIs and third-party integrations (Shopify, Patchworks, RFID).
• Self-reliant, able to own tasks and collaborate in a small agile team.
• Good English (B2+) for communication.
• Availability for full-time (B2B hourly terms).

Responsibilities

• Build from scratch: design and develop a greenfield dashboard using C#/.NET on the backend and Vue.js on the frontend.
• Integrate the application with external retail and ERP platforms (Shopify, Patchworks, RFID).
• Work with cloud infrastructure on Azure and multi-tenant architecture.
• Translate POC into production code with clean, scalable software.

Skills

Vue.js

C#/.NET

REST APIs

Azure

SQL Server

Multi-tenant

Tools

Shopify

Patchworks

Azure DevOps

Job description

We are looking for a strong Regular Fullstack Developer (Vue.js + .Net) to join us on a freelance basis for a greenfield project in the retail industry.

In this role, your main drive will be crafting modern, high-performance user interfaces in Vue.js, while leveraging your .NET background to build and integrate supporting backend services. You will be part of a focused, self-sufficient two-person engineering team (working alongside a Senior Developer) building a multi-tenant dashboard application from scratch. The client has developed a Proof of Concept (POC), which will serve purely as a reference for business logic to help us architect and write the new system from the ground up.

If you are a Vue.js specialist who feels comfortable navigating .NET architectures and loves clean-slate development, this project is a great fit!

What you will do

• Build from Scratch: Help design and develop a greenfield retail dashboard application using C# / .NET on the backend and Vue.js on the frontend
• Integrate External Systems: Connect the application with external retail and ERP platforms such as Shopify, Patchworks, and RFID tracking systems
• Work with Cloud Infrastructure: Implement multi-tenant architecture hosted on Azure with a SQL Server database
• Translate POC into Production Code: Use an existing prototype as a business logic template to write clean, scalable, and maintainable production software

What we're looking for

• Commercial Experience: 3+ years of hands-on experience as a Fullstack Developer working with Vue.js and .NET (C#)
• Product Thinking: Self-driven approach to feature design and technical implementation, capable of defining functional requirements and basic user flows independently to ensure fast, continuous delivery.
• Database & Cloud: Practical knowledge of SQL Server and core Azure services
• Integrations: Experience working with REST APIs and third-party integrations (e.g., e-commerce platforms, ERP systems)
• Self-Reliance: Ability to take ownership of assigned tasks and collaborate effectively in a small, agile team
• Language Skills: Good command of English (B2+) to ensure smooth communication
• Availability: Full-time (B2B contract/hourly rates)

Nice to Have

• Experience with multi-tenant application architecture
• Prior exposure to retail tech, e-commerce, or logistics domains

What do we mean by freelance?

• Read more at Monterail Tech Network