Monterail

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

Poland full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

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!
Requirements
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

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

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Mid
Technology & IT Figma MySQL Operations Project Management SQL Mid level

Likely questions

  1. Tell us about work you have done that is close to the Regular Fullstack Developer (Vue.js + .Net) - Freelancer role.
  2. How would you approach your first 30 days at Monterail?
  3. Which of Figma, MySQL and Operations have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with Figma, MySQL and Operations.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Regular Fullstack Developer (Vue.js + .Net) - Freelancer role because I can bring practical experience in Figma, MySQL and Operations, learn the team quickly, and contribute to the outcomes Monterail needs from this hire.

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